Analysis Overview
SHA256
fe9b415107f164c76a286b93f647b0501fb83e4dd7f839ab7fec9639c55084ae
Threat Level: Known bad
The file stealer v2.exe was found to be: Known bad.
Malicious Activity Summary
Umbral
Detect Umbral payload
Checks computer location settings
Executes dropped EXE
Looks up external IP address via web service
Adds Run key to start application
Drops file in Windows directory
Unsigned PE
Enumerates physical storage devices
Suspicious behavior: EnumeratesProcesses
Uses Task Scheduler COM API
Delays execution with timeout.exe
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-04-22 13:52
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-04-22 13:52
Reported
2024-04-22 13:53
Platform
win10v2004-20240412-en
Max time kernel
7s
Max time network
16s
Command Line
Signatures
Detect Umbral payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Umbral
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-259785868-298165991-4178590326-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\stealer.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\stealer.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce\wextract_cleanup0 = "rundll32.exe C:\\Windows\\system32\\advpack.dll,DelNodeRunDLL32 \"C:\\Users\\Admin\\AppData\\Local\\Temp\\IXP000.TMP\\\"" | C:\Users\Admin\AppData\Local\Temp\stealer v2.exe | N/A |
Looks up external IP address via web service
| Description | Indicator | Process | Target |
| N/A | ip-api.com | N/A | N/A |
Enumerates physical storage devices
Delays execution with timeout.exe
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\system32\timeout.exe | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe | N/A |
| N/A | N/A | C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\stealer.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 2648 wrote to memory of 3008 | N/A | C:\Users\Admin\AppData\Local\Temp\stealer v2.exe | C:\Windows\SYSTEM32\cmd.exe |
| PID 2648 wrote to memory of 3008 | N/A | C:\Users\Admin\AppData\Local\Temp\stealer v2.exe | C:\Windows\SYSTEM32\cmd.exe |
| PID 3008 wrote to memory of 2320 | N/A | C:\Windows\SYSTEM32\cmd.exe | C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\stealer.exe |
| PID 3008 wrote to memory of 2320 | N/A | C:\Windows\SYSTEM32\cmd.exe | C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\stealer.exe |
| PID 2320 wrote to memory of 4908 | N/A | C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\stealer.exe | C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe |
| PID 2320 wrote to memory of 4908 | N/A | C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\stealer.exe | C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\stealer v2.exe
"C:\Users\Admin\AppData\Local\Temp\stealer v2.exe"
C:\Windows\SYSTEM32\cmd.exe
cmd /c "stealer.exe"
C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\stealer.exe
stealer.exe
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Windows\task.exe'
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'task.exe'
C:\Windows\task.exe
C:\Windows\task.exe
C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp6793.tmp.bat""
C:\Windows\system32\timeout.exe
timeout 3
C:\Windows\system32\schtasks.exe
schtasks /run /TN Update
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | ip-api.com | udp |
| US | 208.95.112.1:80 | ip-api.com | tcp |
| US | 8.8.8.8:53 | 8.8.8.8.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 71.159.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | g.bing.com | udp |
| US | 8.8.8.8:53 | 0.204.248.87.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 228.249.119.40.in-addr.arpa | udp |
| US | 204.79.197.237:443 | g.bing.com | tcp |
| US | 8.8.8.8:53 | 237.197.79.204.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 1.112.95.208.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 88.156.103.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 241.154.82.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 21.114.53.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | gstatic.com | udp |
Files
C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\stealer.exe
| MD5 | bdb421db1041dff30935a0c368f0316e |
| SHA1 | 15786e4eb3057abaeab7c2ebbb0e758d9d4c2216 |
| SHA256 | ac14f5357b9e35f8e9fccd2727ae133f34acafbd442cdb6f438a6f7a70861ca2 |
| SHA512 | 0280a8eeb333437c2122b8e47414565bd8492fee285071e612fc09bb82591a56abd5bf4ed1b194f581656ad1f75727b5c51a6ae50f08d7ea7588c36daa9e6b59 |
memory/2320-5-0x0000000000140000-0x00000000001EE000-memory.dmp
memory/2320-6-0x00007FFA40940000-0x00007FFA41401000-memory.dmp
memory/2320-7-0x000000001AE20000-0x000000001AE30000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_n5yd3hmg.ocq.ps1
| MD5 | d17fe0a3f47be24a6453e9ef58c94641 |
| SHA1 | 6ab83620379fc69f80c0242105ddffd7d98d5d9d |
| SHA256 | 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7 |
| SHA512 | 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82 |
memory/4908-13-0x0000026D5C560000-0x0000026D5C582000-memory.dmp
memory/4908-18-0x00007FFA40940000-0x00007FFA41401000-memory.dmp
memory/4908-19-0x0000026D5C5A0000-0x0000026D5C5B0000-memory.dmp
memory/4908-20-0x0000026D5C5A0000-0x0000026D5C5B0000-memory.dmp
memory/4908-23-0x00007FFA40940000-0x00007FFA41401000-memory.dmp
C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log
| MD5 | d85ba6ff808d9e5444a4b369f5bc2730 |
| SHA1 | 31aa9d96590fff6981b315e0b391b575e4c0804a |
| SHA256 | 84739c608a73509419748e4e20e6cc4e1846056c3fe1929a8300d5a1a488202f |
| SHA512 | 8c414eb55b45212af385accc16d9d562adba2123583ce70d22b91161fe878683845512a78f04dedd4ea98ed9b174dbfa98cf696370598ad8e6fbd1e714f1f249 |
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
| MD5 | 62623d22bd9e037191765d5083ce16a3 |
| SHA1 | 4a07da6872672f715a4780513d95ed8ddeefd259 |
| SHA256 | 95d79fd575bbd21540e378fcbc1cd00d16f51af62ce15bae7080bb72c24e2010 |
| SHA512 | 9a448b7a0d867466c2ea04ab84d2a9485d5fd20ab53b2b854f491831ee3f1d781b94d2635f7b0b35cb9f2d373cd52c67570879a56a42ed66bc9db06962ed4992 |
memory/3432-35-0x00007FFA40940000-0x00007FFA41401000-memory.dmp
memory/3432-36-0x000001CCF25A0000-0x000001CCF25B0000-memory.dmp
memory/3432-38-0x00007FFA40940000-0x00007FFA41401000-memory.dmp
memory/2320-41-0x00007FFA40940000-0x00007FFA41401000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\tmp6793.tmp.bat
| MD5 | 2052f8eb3d55d5a3db3e3ff93149506e |
| SHA1 | 7b5b80e4b565e7dfb2b63fe9769d1895030834a0 |
| SHA256 | fda5b368fe922464fae79b3a1bb0b7183540d3a204b5ac44a6c4061dd739f222 |
| SHA512 | 629bf082709a75d05357ab2c9b204c915bb2dd38e1ecaf76565c2a4b96427448d8133b9f6210f24c2b271c28216ec52278cf951ce9db54080f6a0525370a8a38 |
memory/2320-48-0x00007FFA40940000-0x00007FFA41401000-memory.dmp
memory/3988-49-0x00007FFA40940000-0x00007FFA41401000-memory.dmp
memory/3988-51-0x000000001B2D0000-0x000000001B310000-memory.dmp
memory/3988-50-0x000000001B490000-0x000000001B4A0000-memory.dmp
memory/3988-52-0x000000001B310000-0x000000001B354000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-04-22 13:52
Reported
2024-04-22 14:03
Platform
win7-20240221-en
Max time kernel
10s
Max time network
19s
Command Line
Signatures
Detect Umbral payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Umbral
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\stealer.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce\wextract_cleanup0 = "rundll32.exe C:\\Windows\\system32\\advpack.dll,DelNodeRunDLL32 \"C:\\Users\\Admin\\AppData\\Local\\Temp\\IXP000.TMP\\\"" | C:\Users\Admin\AppData\Local\Temp\stealer v2.exe | N/A |
Looks up external IP address via web service
| Description | Indicator | Process | Target |
| N/A | ip-api.com | N/A | N/A |
Drops file in Windows directory
| Description | Indicator | Process | Target |
| File created | C:\Windows\task.exe | C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\stealer.exe | N/A |
| File opened for modification | C:\Windows\task.exe | C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\stealer.exe | N/A |
Enumerates physical storage devices
Delays execution with timeout.exe
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\system32\timeout.exe | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe | N/A |
| N/A | N/A | C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\stealer.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe | N/A |
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Processes
C:\Users\Admin\AppData\Local\Temp\stealer v2.exe
"C:\Users\Admin\AppData\Local\Temp\stealer v2.exe"
C:\Windows\system32\cmd.exe
cmd /c "stealer.exe"
C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\stealer.exe
stealer.exe
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Windows\task.exe'
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'task.exe'
C:\Windows\system32\cmd.exe
cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmp8AD2.tmp.bat""
C:\Windows\system32\taskeng.exe
taskeng.exe {3DABA6DE-CCA5-409B-A169-248EF5BCFB21} S-1-5-21-330940541-141609230-1670313778-1000:KXIPPCKF\Admin:Interactive:[1]
C:\Windows\system32\timeout.exe
timeout 3
C:\Windows\task.exe
C:\Windows\task.exe
C:\Windows\system32\schtasks.exe
schtasks /run /TN Update
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | ip-api.com | udp |
| US | 208.95.112.1:80 | ip-api.com | tcp |
Files
memory/1328-7-0x000000001B2C0000-0x000000001B340000-memory.dmp
memory/1328-6-0x000007FEF64E0000-0x000007FEF6ECC000-memory.dmp
memory/1328-5-0x0000000000DA0000-0x0000000000E4E000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\stealer.exe
| MD5 | bdb421db1041dff30935a0c368f0316e |
| SHA1 | 15786e4eb3057abaeab7c2ebbb0e758d9d4c2216 |
| SHA256 | ac14f5357b9e35f8e9fccd2727ae133f34acafbd442cdb6f438a6f7a70861ca2 |
| SHA512 | 0280a8eeb333437c2122b8e47414565bd8492fee285071e612fc09bb82591a56abd5bf4ed1b194f581656ad1f75727b5c51a6ae50f08d7ea7588c36daa9e6b59 |
memory/1532-12-0x000000001B150000-0x000000001B432000-memory.dmp
memory/1532-13-0x0000000001F50000-0x0000000001F58000-memory.dmp
memory/1532-14-0x000007FEEE000000-0x000007FEEE99D000-memory.dmp
memory/1532-15-0x0000000002720000-0x00000000027A0000-memory.dmp
memory/1532-16-0x000007FEEE000000-0x000007FEEE99D000-memory.dmp
memory/1532-17-0x0000000002720000-0x00000000027A0000-memory.dmp
memory/1532-18-0x0000000002720000-0x00000000027A0000-memory.dmp
memory/1532-19-0x0000000002720000-0x00000000027A0000-memory.dmp
memory/1532-20-0x000007FEEE000000-0x000007FEEE99D000-memory.dmp
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\590aee7bdd69b59b.customDestinations-ms
| MD5 | 6223fefd955979117628648d2f0d0a2b |
| SHA1 | 53264fecf8f70be00690458ec9873a3c005b5585 |
| SHA256 | 1aeb1b2e4151ce7febd0957877ce6c8f2c266291dd7d5da73797450afe64a42b |
| SHA512 | 22a2e89cbd2e2ded4575163deca0d7caf42eaf9d2a630e5190ba733ef5d1f231bb24bb1ed8b4e802cbcc0f8acc2d5fc1d34c46ce4d65ce2bb9a71862b2755aff |
memory/2352-26-0x000000001B240000-0x000000001B522000-memory.dmp
memory/2352-28-0x0000000001FA0000-0x0000000001FA8000-memory.dmp
memory/2352-27-0x000007FEED660000-0x000007FEEDFFD000-memory.dmp
memory/2352-29-0x0000000002790000-0x0000000002810000-memory.dmp
memory/2352-30-0x000007FEED660000-0x000007FEEDFFD000-memory.dmp
memory/2352-31-0x0000000002790000-0x0000000002810000-memory.dmp
memory/2352-32-0x0000000002790000-0x0000000002810000-memory.dmp
memory/2352-33-0x0000000002790000-0x0000000002810000-memory.dmp
memory/2352-34-0x000007FEED660000-0x000007FEEDFFD000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\tmp8AD2.tmp.bat
| MD5 | 8896799bd3ef5c639b9ef11c05c38066 |
| SHA1 | 8915d6ff3dc86f4fe90430672fef753a5cd7e8bb |
| SHA256 | 88628c0a389f61bb3f2f443a438abb7b87a054cac29502c5bf804047217632a9 |
| SHA512 | a1c8879ec7b7cd5250a031697922f3f06045e1fabc4a031b5a4ad2b33cf3280899f78442943366a7c851cd20ccb103aaf01840a9c2fbcc8d13110506eb8485a7 |
memory/1328-45-0x000007FEF64E0000-0x000007FEF6ECC000-memory.dmp
memory/2660-49-0x000007FEF5AF0000-0x000007FEF64DC000-memory.dmp
memory/2660-50-0x0000000000CA0000-0x0000000000D4E000-memory.dmp
memory/2660-51-0x0000000000A90000-0x0000000000B10000-memory.dmp
memory/2660-53-0x0000000000A50000-0x0000000000A90000-memory.dmp
memory/2660-52-0x000000001A790000-0x000000001A7D4000-memory.dmp
Analysis: behavioral3
Detonation Overview
Submitted
2024-04-22 13:52
Reported
2024-04-22 14:03
Platform
win10-20240404-en
Max time kernel
9s
Max time network
10s
Command Line
Signatures
Detect Umbral payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Umbral
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\stealer.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce\wextract_cleanup0 = "rundll32.exe C:\\Windows\\system32\\advpack.dll,DelNodeRunDLL32 \"C:\\Users\\Admin\\AppData\\Local\\Temp\\IXP000.TMP\\\"" | C:\Users\Admin\AppData\Local\Temp\stealer v2.exe | N/A |
Looks up external IP address via web service
| Description | Indicator | Process | Target |
| N/A | ip-api.com | N/A | N/A |
Enumerates physical storage devices
Delays execution with timeout.exe
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\system32\timeout.exe | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe | N/A |
| N/A | N/A | C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe | N/A |
| N/A | N/A | C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe | N/A |
| N/A | N/A | C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe | N/A |
| N/A | N/A | C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe | N/A |
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\stealer v2.exe
"C:\Users\Admin\AppData\Local\Temp\stealer v2.exe"
C:\Windows\SYSTEM32\cmd.exe
cmd /c "stealer.exe"
C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\stealer.exe
stealer.exe
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Windows\task.exe'
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'task.exe'
C:\Windows\task.exe
C:\Windows\task.exe
C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp98F4.tmp.bat""
C:\Windows\system32\timeout.exe
timeout 3
C:\Windows\system32\schtasks.exe
schtasks /run /TN Update
C:\Windows\System32\svchost‌.exe
C:\Windows\System32\svchost‌.exe
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | ip-api.com | udp |
| US | 208.95.112.1:80 | ip-api.com | tcp |
| US | 8.8.8.8:53 | 1.112.95.208.in-addr.arpa | udp |
Files
C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\stealer.exe
| MD5 | bdb421db1041dff30935a0c368f0316e |
| SHA1 | 15786e4eb3057abaeab7c2ebbb0e758d9d4c2216 |
| SHA256 | ac14f5357b9e35f8e9fccd2727ae133f34acafbd442cdb6f438a6f7a70861ca2 |
| SHA512 | 0280a8eeb333437c2122b8e47414565bd8492fee285071e612fc09bb82591a56abd5bf4ed1b194f581656ad1f75727b5c51a6ae50f08d7ea7588c36daa9e6b59 |
memory/4624-5-0x0000000000010000-0x00000000000BE000-memory.dmp
memory/4624-6-0x00007FFF50290000-0x00007FFF50C7C000-memory.dmp
memory/4624-7-0x0000000002220000-0x0000000002230000-memory.dmp
memory/4632-10-0x00007FFF50290000-0x00007FFF50C7C000-memory.dmp
memory/4632-13-0x00000215F15C0000-0x00000215F15D0000-memory.dmp
memory/4632-14-0x00000215F15C0000-0x00000215F15D0000-memory.dmp
memory/4632-15-0x00000215F15D0000-0x00000215F15F2000-memory.dmp
memory/4632-18-0x00000215F1780000-0x00000215F17F6000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_scvzjv01.bib.ps1
| MD5 | c4ca4238a0b923820dcc509a6f75849b |
| SHA1 | 356a192b7913b04c54574d18c28d46e6395428ab |
| SHA256 | 6b86b273ff34fce19d6b804eff5a3f5747ada4eaa22f1d49c01e52ddb7875b4b |
| SHA512 | 4dff4ea340f0a823f15d3f4f01ab62eae0e5da579ccb851f8db9dfe84c58b2b37b89903a740e1ee172da793a6e79d560e5f7f9bd058a12a280433ed6fa46510a |
memory/4632-31-0x00000215F15C0000-0x00000215F15D0000-memory.dmp
memory/4632-53-0x00000215F15C0000-0x00000215F15D0000-memory.dmp
memory/4632-58-0x00007FFF50290000-0x00007FFF50C7C000-memory.dmp
C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log
| MD5 | 8592ba100a78835a6b94d5949e13dfc1 |
| SHA1 | 63e901200ab9a57c7dd4c078d7f75dcd3b357020 |
| SHA256 | fdd7d9def6f9f0c0f2e60dbc8a2d1999071cd7d3095e9e087bb1cda7a614ac3c |
| SHA512 | 87f98e6cb61b2a2a7d65710c4d33881d89715eb7a06e00d492259f35c3902498baabffc5886be0ec5a14312ad4c262e3fc40cd3a5cb91701af0fb229726b88c3 |
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
| MD5 | 3fdef356c45358700d996a282315e2c1 |
| SHA1 | e81500c4b19bed838dba325d2aff3e3c6971b78b |
| SHA256 | 32b66eab142777d5b59e3ed68da31c75d6dc0b1419f067e3bceadd2b92e5c175 |
| SHA512 | 78d314cf590f9cad826ddab5c8a2a1531988a54e123f4100fbc6e1ddc0df127755524792c7fa9884dd4327e5193877d79e9de5f13ce09c73fe007e1afc2830d9 |
memory/3588-65-0x00007FFF50290000-0x00007FFF50C7C000-memory.dmp
memory/3588-68-0x00000183DFA00000-0x00000183DFA10000-memory.dmp
memory/3588-67-0x00000183DFA00000-0x00000183DFA10000-memory.dmp
memory/3588-82-0x00000183DFA00000-0x00000183DFA10000-memory.dmp
memory/3588-104-0x00000183DFA00000-0x00000183DFA10000-memory.dmp
memory/3588-108-0x00007FFF50290000-0x00007FFF50C7C000-memory.dmp
memory/4624-111-0x00007FFF50290000-0x00007FFF50C7C000-memory.dmp
memory/4100-117-0x00007FFF50290000-0x00007FFF50C7C000-memory.dmp
memory/4624-118-0x00007FFF50290000-0x00007FFF50C7C000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\tmp98F4.tmp.bat
| MD5 | 1834d0a44346b455ed6e333a4220e60c |
| SHA1 | 6e01ab6464c31050a36ea84e781516cd33bd5330 |
| SHA256 | a677c8baeebea187f7168f9f0f4b3071af4cfd0260e9fe3a79195d59727584c2 |
| SHA512 | 2249e505c48233997f7611f0471120abb0f6fc1b2935624a2fcf1805062b2ddeec2d5841c2bc21acf6fc3f05e714cc8683ae2004eef250d4d7e191af5f65f9ca |
memory/4100-122-0x000000001B3F0000-0x000000001B434000-memory.dmp
memory/4100-121-0x00000000028A0000-0x00000000028E0000-memory.dmp
memory/4100-120-0x000000001B3E0000-0x000000001B3F0000-memory.dmp
Analysis: behavioral4
Detonation Overview
Submitted
2024-04-22 13:52
Reported
2024-04-22 13:53
Platform
win10v2004-20240412-en
Max time kernel
6s
Max time network
20s
Command Line
Signatures
Detect Umbral payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Umbral
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-4084619521-2220719027-1909462854-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\stealer.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\stealer.exe | N/A |
| N/A | N/A | C:\Windows\task.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce\wextract_cleanup0 = "rundll32.exe C:\\Windows\\system32\\advpack.dll,DelNodeRunDLL32 \"C:\\Users\\Admin\\AppData\\Local\\Temp\\IXP000.TMP\\\"" | C:\Users\Admin\AppData\Local\Temp\stealer v2.exe | N/A |
Looks up external IP address via web service
| Description | Indicator | Process | Target |
| N/A | ip-api.com | N/A | N/A |
Drops file in Windows directory
| Description | Indicator | Process | Target |
| File created | C:\Windows\task.exe | C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\stealer.exe | N/A |
| File opened for modification | C:\Windows\task.exe | C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\stealer.exe | N/A |
Enumerates physical storage devices
Delays execution with timeout.exe
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\system32\timeout.exe | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe | N/A |
| N/A | N/A | C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe | N/A |
| N/A | N/A | C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe | N/A |
| N/A | N/A | C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\stealer.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Windows\task.exe | N/A |
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Processes
C:\Users\Admin\AppData\Local\Temp\stealer v2.exe
"C:\Users\Admin\AppData\Local\Temp\stealer v2.exe"
C:\Windows\SYSTEM32\cmd.exe
cmd /c "stealer.exe"
C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\stealer.exe
stealer.exe
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Windows\task.exe'
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'task.exe'
C:\Windows\task.exe
C:\Windows\task.exe
C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp44AA.tmp.bat""
C:\Windows\system32\timeout.exe
timeout 3
C:\Windows\system32\schtasks.exe
schtasks /run /TN Update
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | ip-api.com | udp |
| US | 208.95.112.1:80 | ip-api.com | tcp |
| US | 8.8.8.8:53 | 183.142.211.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 1.112.95.208.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 9.228.82.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.210.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | g.bing.com | udp |
| US | 204.79.197.237:443 | g.bing.com | tcp |
| US | 8.8.8.8:53 | 156.33.209.4.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 21.114.53.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 237.197.79.204.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 205.47.74.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | gstatic.com | udp |
| GB | 142.250.180.3:443 | gstatic.com | tcp |
Files
C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\stealer.exe
| MD5 | bdb421db1041dff30935a0c368f0316e |
| SHA1 | 15786e4eb3057abaeab7c2ebbb0e758d9d4c2216 |
| SHA256 | ac14f5357b9e35f8e9fccd2727ae133f34acafbd442cdb6f438a6f7a70861ca2 |
| SHA512 | 0280a8eeb333437c2122b8e47414565bd8492fee285071e612fc09bb82591a56abd5bf4ed1b194f581656ad1f75727b5c51a6ae50f08d7ea7588c36daa9e6b59 |
memory/3760-5-0x0000000000C90000-0x0000000000D3E000-memory.dmp
memory/3760-6-0x00007FFA6E4A0000-0x00007FFA6EF61000-memory.dmp
memory/3760-7-0x000000001BA00000-0x000000001BA10000-memory.dmp
memory/2100-8-0x00007FFA6E4A0000-0x00007FFA6EF61000-memory.dmp
memory/2100-9-0x000001DE4BEA0000-0x000001DE4BEB0000-memory.dmp
memory/2100-10-0x000001DE4BEA0000-0x000001DE4BEB0000-memory.dmp
memory/2100-16-0x000001DE4BE50000-0x000001DE4BE72000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_gsytjlzl.aqa.ps1
| MD5 | d17fe0a3f47be24a6453e9ef58c94641 |
| SHA1 | 6ab83620379fc69f80c0242105ddffd7d98d5d9d |
| SHA256 | 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7 |
| SHA512 | 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82 |
memory/2100-23-0x00007FFA6E4A0000-0x00007FFA6EF61000-memory.dmp
C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log
| MD5 | d85ba6ff808d9e5444a4b369f5bc2730 |
| SHA1 | 31aa9d96590fff6981b315e0b391b575e4c0804a |
| SHA256 | 84739c608a73509419748e4e20e6cc4e1846056c3fe1929a8300d5a1a488202f |
| SHA512 | 8c414eb55b45212af385accc16d9d562adba2123583ce70d22b91161fe878683845512a78f04dedd4ea98ed9b174dbfa98cf696370598ad8e6fbd1e714f1f249 |
memory/1180-26-0x000001EDC29A0000-0x000001EDC29B0000-memory.dmp
memory/1180-25-0x00007FFA6E4A0000-0x00007FFA6EF61000-memory.dmp
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
| MD5 | 59d97011e091004eaffb9816aa0b9abd |
| SHA1 | 1602a56b01dd4b7c577ca27d3117e4bcc1aa657b |
| SHA256 | 18f381e0db020a763b8c515c346ef58679ab9c403267eacfef5359e272f7e71d |
| SHA512 | d9ca49c1a17580981e2c1a50d73c0eecaa7a62f8514741512172e395af2a3d80aeb0f71c58bc7f52c18246d57ba67af09b6bff4776877d6cc6f0245c30e092d6 |
memory/1180-38-0x00007FFA6E4A0000-0x00007FFA6EF61000-memory.dmp
memory/3760-46-0x000000001BA80000-0x000000001BB82000-memory.dmp
memory/3760-48-0x00007FFA6E4A0000-0x00007FFA6EF61000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\tmp44AA.tmp.bat
| MD5 | 0956de8e46817a9da34dfd011f1fc60e |
| SHA1 | 2913117332fcfa4a0984a62dbd639ed3f02d0653 |
| SHA256 | 5a07325842c73924433cbf4e7bb413a367f4c4e71e02fab410d2c32402a67b33 |
| SHA512 | 62c78ae9b39e2a1f3f5355eea0d3b7eeeb459159411f4e6644f85c0033b75be7a400342f1b754871c052a30affcebe8ff49e9b348d2742bc4d4c5ba8b4657d5e |
memory/432-49-0x00007FFA6E4A0000-0x00007FFA6EF61000-memory.dmp
memory/432-50-0x000000001B1E0000-0x000000001B220000-memory.dmp
memory/432-51-0x000000001B230000-0x000000001B274000-memory.dmp
memory/432-54-0x000000001B2A0000-0x000000001B2B0000-memory.dmp
Analysis: behavioral5
Detonation Overview
Submitted
2024-04-22 13:52
Reported
2024-04-22 13:54
Platform
win11-20240412-en
Max time kernel
6s
Max time network
9s
Command Line
Signatures
Detect Umbral payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Umbral
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\stealer.exe | N/A |
| N/A | N/A | C:\Windows\task.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce\wextract_cleanup0 = "rundll32.exe C:\\Windows\\system32\\advpack.dll,DelNodeRunDLL32 \"C:\\Users\\Admin\\AppData\\Local\\Temp\\IXP000.TMP\\\"" | C:\Users\Admin\AppData\Local\Temp\stealer v2.exe | N/A |
Looks up external IP address via web service
| Description | Indicator | Process | Target |
| N/A | ip-api.com | N/A | N/A |
Drops file in Windows directory
| Description | Indicator | Process | Target |
| File opened for modification | C:\Windows\task.exe | C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\stealer.exe | N/A |
| File created | C:\Windows\task.exe | C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\stealer.exe | N/A |
Enumerates physical storage devices
Delays execution with timeout.exe
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\system32\timeout.exe | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe | N/A |
| N/A | N/A | C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe | N/A |
| N/A | N/A | C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe | N/A |
| N/A | N/A | C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\stealer.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Windows\task.exe | N/A |
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Processes
C:\Users\Admin\AppData\Local\Temp\stealer v2.exe
"C:\Users\Admin\AppData\Local\Temp\stealer v2.exe"
C:\Windows\SYSTEM32\cmd.exe
cmd /c "stealer.exe"
C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\stealer.exe
stealer.exe
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Windows\task.exe'
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'task.exe'
C:\Windows\task.exe
C:\Windows\task.exe
C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp496D.tmp.bat""
C:\Windows\system32\timeout.exe
timeout 3
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | ip-api.com | udp |
| US | 208.95.112.1:80 | ip-api.com | tcp |
| US | 8.8.8.8:53 | 1.112.95.208.in-addr.arpa | udp |
Files
C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\stealer.exe
| MD5 | bdb421db1041dff30935a0c368f0316e |
| SHA1 | 15786e4eb3057abaeab7c2ebbb0e758d9d4c2216 |
| SHA256 | ac14f5357b9e35f8e9fccd2727ae133f34acafbd442cdb6f438a6f7a70861ca2 |
| SHA512 | 0280a8eeb333437c2122b8e47414565bd8492fee285071e612fc09bb82591a56abd5bf4ed1b194f581656ad1f75727b5c51a6ae50f08d7ea7588c36daa9e6b59 |
memory/4932-5-0x0000000000C30000-0x0000000000CDE000-memory.dmp
memory/4932-6-0x00007FFD50BB0000-0x00007FFD51672000-memory.dmp
memory/4932-7-0x000000001BAC0000-0x000000001BAD0000-memory.dmp
memory/5032-8-0x00007FFD50BB0000-0x00007FFD51672000-memory.dmp
memory/5032-9-0x000001E10B860000-0x000001E10B870000-memory.dmp
memory/5032-15-0x000001E124790000-0x000001E1247B2000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_z1oubbp1.2kb.ps1
| MD5 | d17fe0a3f47be24a6453e9ef58c94641 |
| SHA1 | 6ab83620379fc69f80c0242105ddffd7d98d5d9d |
| SHA256 | 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7 |
| SHA512 | 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82 |
memory/5032-19-0x000001E10B860000-0x000001E10B870000-memory.dmp
memory/5032-22-0x00007FFD50BB0000-0x00007FFD51672000-memory.dmp
C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log
| MD5 | 627073ee3ca9676911bee35548eff2b8 |
| SHA1 | 4c4b68c65e2cab9864b51167d710aa29ebdcff2e |
| SHA256 | 85b280a39fc31ba1e15fb06102a05b8405ff3b82feb181d4170f04e466dd647c |
| SHA512 | 3c5f6c03e253b83c57e8d6f0334187dbdcdf4fa549eecd36cbc1322dca6d3ca891dc6a019c49ec2eafb88f82d0434299c31e4dfaab123acb42e0546218f311fb |
memory/4484-32-0x00007FFD50BB0000-0x00007FFD51672000-memory.dmp
memory/4484-33-0x0000023DFF190000-0x0000023DFF1A0000-memory.dmp
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
| MD5 | 2e8eb51096d6f6781456fef7df731d97 |
| SHA1 | ec2aaf851a618fb43c3d040a13a71997c25bda43 |
| SHA256 | 96bfd9dd5883329927fe8c08b8956355a1a6ceb30ceeb5d4252b346df32bc864 |
| SHA512 | 0a73dc9a49f92d9dd556c2ca2e36761890b3538f355ee1f013e7cf648d8c4d065f28046cd4a167db3dea304d1fbcbcea68d11ce6e12a3f20f8b6c018a60422d2 |
memory/4484-35-0x0000023DFF190000-0x0000023DFF1A0000-memory.dmp
memory/4484-36-0x0000023DFF190000-0x0000023DFF1A0000-memory.dmp
memory/4484-38-0x00007FFD50BB0000-0x00007FFD51672000-memory.dmp
memory/4932-41-0x00007FFD50BB0000-0x00007FFD51672000-memory.dmp
memory/2604-44-0x000000001B630000-0x000000001B670000-memory.dmp
memory/2604-45-0x000000001B770000-0x000000001B7B4000-memory.dmp
memory/2604-49-0x00007FFD50BB0000-0x00007FFD51672000-memory.dmp
memory/2604-50-0x00000000011C0000-0x00000000011D0000-memory.dmp
memory/4932-52-0x00007FFD50BB0000-0x00007FFD51672000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\tmp496D.tmp.bat
| MD5 | 490408960280e2bb462e23aa5fa7124b |
| SHA1 | 8876a6bd76031a249a69deca4855482ae3c922bb |
| SHA256 | 53b82bb9788c0c6aa14f08d9fa0ab90624b61f070d62b57d0ec00d33383490d6 |
| SHA512 | 27120414f90006f5df8d766bd9623b7ee369c60578c98f657c66984662c1131da695695d2bfaf9401ab6819e95268e51a73bedee1514d263e2ecb3f8ed153897 |