Analysis Overview
SHA256
3b746894d0a71f6162d96d2af36bea8d794d7e23af44c5536fcf97d416510a6e
Threat Level: Known bad
The file 3b746894d0a71f6162d96d2af36bea8d794d7e23af44c5536fcf97d416510a6e was found to be: Known bad.
Malicious Activity Summary
Formbook
Formbook payload
Command and Scripting Interpreter: PowerShell
Checks computer location settings
Suspicious use of SetThreadContext
Enumerates physical storage devices
Unsigned PE
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Suspicious use of AdjustPrivilegeToken
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-05-09 05:15
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-05-09 05:15
Reported
2024-05-09 05:17
Platform
win10v2004-20240226-en
Max time kernel
141s
Max time network
169s
Command Line
Signatures
Formbook
Formbook payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Command and Scripting Interpreter: PowerShell
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe | N/A |
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\3b746894d0a71f6162d96d2af36bea8d794d7e23af44c5536fcf97d416510a6e.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 2512 set thread context of 2724 | N/A | C:\Users\Admin\AppData\Local\Temp\3b746894d0a71f6162d96d2af36bea8d794d7e23af44c5536fcf97d416510a6e.exe | C:\Users\Admin\AppData\Local\Temp\3b746894d0a71f6162d96d2af36bea8d794d7e23af44c5536fcf97d416510a6e.exe |
Enumerates physical storage devices
Creates scheduled task(s)
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\schtasks.exe | N/A |
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\3b746894d0a71f6162d96d2af36bea8d794d7e23af44c5536fcf97d416510a6e.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\3b746894d0a71f6162d96d2af36bea8d794d7e23af44c5536fcf97d416510a6e.exe
"C:\Users\Admin\AppData\Local\Temp\3b746894d0a71f6162d96d2af36bea8d794d7e23af44c5536fcf97d416510a6e.exe"
C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=4352 --field-trial-handle=2256,i,6670388345726423024,18382795228658886258,262144 --variations-seed-version /prefetch:8
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\zNukUlepyAI.exe"
C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\zNukUlepyAI" /XML "C:\Users\Admin\AppData\Local\Temp\tmp3128.tmp"
C:\Users\Admin\AppData\Local\Temp\3b746894d0a71f6162d96d2af36bea8d794d7e23af44c5536fcf97d416510a6e.exe
"C:\Users\Admin\AppData\Local\Temp\3b746894d0a71f6162d96d2af36bea8d794d7e23af44c5536fcf97d416510a6e.exe"
Network
| Country | Destination | Domain | Proto |
| US | 20.231.121.79:80 | tcp | |
| US | 8.8.8.8:53 | 77.190.18.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 13.86.106.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 86.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 198.187.3.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.210.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 67.31.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | chromewebstore.googleapis.com | udp |
| US | 8.8.8.8:53 | chromewebstore.googleapis.com | udp |
| GB | 216.58.212.202:443 | chromewebstore.googleapis.com | tcp |
| US | 8.8.8.8:53 | 202.212.58.216.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 209.205.72.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 79.190.18.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 58.55.71.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 8.179.89.13.in-addr.arpa | udp |
Files
memory/2512-0-0x000000007451E000-0x000000007451F000-memory.dmp
memory/2512-1-0x0000000000890000-0x000000000094A000-memory.dmp
memory/2512-2-0x000000007451E000-0x000000007451F000-memory.dmp
memory/2512-3-0x0000000007CB0000-0x0000000008254000-memory.dmp
memory/2512-4-0x00000000077F0000-0x0000000007882000-memory.dmp
memory/2512-5-0x0000000074510000-0x0000000074CC0000-memory.dmp
memory/2512-6-0x0000000007C40000-0x0000000007C4A000-memory.dmp
memory/2512-7-0x0000000008370000-0x000000000840C000-memory.dmp
memory/2512-8-0x0000000005350000-0x000000000536E000-memory.dmp
memory/2512-9-0x0000000007C70000-0x0000000007C80000-memory.dmp
memory/2512-10-0x0000000007CA0000-0x0000000007CB6000-memory.dmp
memory/2512-11-0x00000000097D0000-0x0000000009846000-memory.dmp
memory/2512-12-0x0000000074510000-0x0000000074CC0000-memory.dmp
memory/5060-17-0x0000000074510000-0x0000000074CC0000-memory.dmp
memory/5060-18-0x0000000002FD0000-0x0000000003006000-memory.dmp
memory/5060-19-0x0000000074510000-0x0000000074CC0000-memory.dmp
memory/5060-20-0x0000000005AF0000-0x0000000006118000-memory.dmp
memory/5060-21-0x0000000074510000-0x0000000074CC0000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\tmp3128.tmp
| MD5 | 164bb7ffa99fe3f2e12b573611cd652f |
| SHA1 | 5b667b205cfd99ef69c0eeb0739b5a35b9ac5c4c |
| SHA256 | 6f40a9fb3da28c2bc36d722cfd827470d6080525f3d277e58cbf2fcf2ec52357 |
| SHA512 | 35be4c0fd35032a8ae4dad2bad519712862856a1ca6f5ffbad4c3e44eaae3f2d0734d98c07bd1670e04dbdfa93c0976574badd1e4e8b562855c36a491881ff8b |
memory/2724-23-0x0000000000400000-0x000000000042F000-memory.dmp
memory/5060-25-0x00000000058F0000-0x0000000005912000-memory.dmp
memory/2512-26-0x0000000074510000-0x0000000074CC0000-memory.dmp
memory/5060-27-0x00000000061D0000-0x0000000006236000-memory.dmp
memory/5060-28-0x0000000006240000-0x00000000062A6000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_4v1r1hz4.fin.ps1
| MD5 | d17fe0a3f47be24a6453e9ef58c94641 |
| SHA1 | 6ab83620379fc69f80c0242105ddffd7d98d5d9d |
| SHA256 | 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7 |
| SHA512 | 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82 |
memory/2724-34-0x0000000000FE0000-0x000000000132A000-memory.dmp
memory/5060-39-0x00000000062B0000-0x0000000006604000-memory.dmp
memory/5060-40-0x0000000005640000-0x000000000565E000-memory.dmp
memory/5060-41-0x0000000006990000-0x00000000069DC000-memory.dmp
memory/5060-42-0x0000000002F60000-0x0000000002F70000-memory.dmp
memory/5060-43-0x0000000007870000-0x00000000078A2000-memory.dmp
memory/5060-44-0x0000000070A00000-0x0000000070A4C000-memory.dmp
memory/5060-54-0x0000000007850000-0x000000000786E000-memory.dmp
memory/5060-55-0x00000000078C0000-0x0000000007963000-memory.dmp
memory/5060-56-0x0000000008230000-0x00000000088AA000-memory.dmp
memory/5060-57-0x0000000007BF0000-0x0000000007C0A000-memory.dmp
memory/5060-58-0x0000000007C60000-0x0000000007C6A000-memory.dmp
memory/5060-59-0x0000000007E70000-0x0000000007F06000-memory.dmp
memory/5060-60-0x0000000007DF0000-0x0000000007E01000-memory.dmp
memory/5060-61-0x0000000007E40000-0x0000000007E4E000-memory.dmp
memory/5060-62-0x0000000007E50000-0x0000000007E64000-memory.dmp
memory/5060-63-0x0000000074510000-0x0000000074CC0000-memory.dmp
memory/5060-64-0x0000000007F50000-0x0000000007F6A000-memory.dmp
memory/5060-65-0x0000000007F30000-0x0000000007F38000-memory.dmp
memory/5060-68-0x0000000074510000-0x0000000074CC0000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-05-09 05:15
Reported
2024-05-09 05:17
Platform
win11-20240419-en
Max time kernel
147s
Max time network
154s
Command Line
Signatures
Formbook
Formbook payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Command and Scripting Interpreter: PowerShell
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 872 set thread context of 3580 | N/A | C:\Users\Admin\AppData\Local\Temp\3b746894d0a71f6162d96d2af36bea8d794d7e23af44c5536fcf97d416510a6e.exe | C:\Users\Admin\AppData\Local\Temp\3b746894d0a71f6162d96d2af36bea8d794d7e23af44c5536fcf97d416510a6e.exe |
Enumerates physical storage devices
Creates scheduled task(s)
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\schtasks.exe | N/A |
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\3b746894d0a71f6162d96d2af36bea8d794d7e23af44c5536fcf97d416510a6e.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\3b746894d0a71f6162d96d2af36bea8d794d7e23af44c5536fcf97d416510a6e.exe
"C:\Users\Admin\AppData\Local\Temp\3b746894d0a71f6162d96d2af36bea8d794d7e23af44c5536fcf97d416510a6e.exe"
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\zNukUlepyAI.exe"
C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\zNukUlepyAI" /XML "C:\Users\Admin\AppData\Local\Temp\tmp7E38.tmp"
C:\Users\Admin\AppData\Local\Temp\3b746894d0a71f6162d96d2af36bea8d794d7e23af44c5536fcf97d416510a6e.exe
"C:\Users\Admin\AppData\Local\Temp\3b746894d0a71f6162d96d2af36bea8d794d7e23af44c5536fcf97d416510a6e.exe"
Network
Files
memory/872-0-0x000000007458E000-0x000000007458F000-memory.dmp
memory/872-1-0x0000000000C90000-0x0000000000D4A000-memory.dmp
memory/872-2-0x00000000081E0000-0x0000000008786000-memory.dmp
memory/872-3-0x0000000007CD0000-0x0000000007D62000-memory.dmp
memory/872-4-0x00000000052A0000-0x00000000052AA000-memory.dmp
memory/872-5-0x0000000007FA0000-0x000000000803C000-memory.dmp
memory/872-6-0x0000000074580000-0x0000000074D31000-memory.dmp
memory/872-7-0x0000000008890000-0x00000000088AE000-memory.dmp
memory/872-8-0x0000000007F90000-0x0000000007FA0000-memory.dmp
memory/872-9-0x00000000080D0000-0x00000000080E6000-memory.dmp
memory/872-10-0x0000000009760000-0x00000000097D6000-memory.dmp
memory/2876-15-0x0000000002710000-0x0000000002746000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\tmp7E38.tmp
| MD5 | 1ef22084011ea21e78e34dd5274a8d94 |
| SHA1 | f95abab05bc3d41b71a6481e42a2c0ee67729bce |
| SHA256 | bc4b1955915a16bf8c59f5be6133ffa5366af8ba0c9b6b5f5cbdd7a65489a9cf |
| SHA512 | 23083a9f4bab01bde45daff1105a883c8c7e6a225b993973f03fc9b40b21e4df7179ea3d8d7d453dccee4cac6d76a999a6af8805c856b6d4680303b084866b8a |
memory/2876-17-0x00000000052E0000-0x000000000590A000-memory.dmp
memory/2876-18-0x0000000074580000-0x0000000074D31000-memory.dmp
memory/2876-19-0x0000000074580000-0x0000000074D31000-memory.dmp
memory/3580-20-0x0000000000400000-0x000000000042F000-memory.dmp
memory/2876-21-0x0000000074580000-0x0000000074D31000-memory.dmp
memory/872-23-0x0000000074580000-0x0000000074D31000-memory.dmp
memory/3580-24-0x00000000016F0000-0x0000000001A46000-memory.dmp
memory/2876-25-0x0000000005070000-0x0000000005092000-memory.dmp
memory/2876-26-0x0000000005110000-0x0000000005176000-memory.dmp
memory/2876-27-0x0000000005180000-0x00000000051E6000-memory.dmp
memory/2876-28-0x0000000005910000-0x0000000005C67000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_s1zgo3qr.cxn.ps1
| MD5 | d17fe0a3f47be24a6453e9ef58c94641 |
| SHA1 | 6ab83620379fc69f80c0242105ddffd7d98d5d9d |
| SHA256 | 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7 |
| SHA512 | 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82 |
memory/2876-37-0x0000000005E20000-0x0000000005E3E000-memory.dmp
memory/2876-38-0x0000000006170000-0x00000000061BC000-memory.dmp
memory/2876-39-0x000000007FA80000-0x000000007FA90000-memory.dmp
memory/2876-40-0x0000000006EC0000-0x0000000006EF4000-memory.dmp
memory/2876-41-0x0000000070F40000-0x0000000070F8C000-memory.dmp
memory/2876-47-0x0000000004CA0000-0x0000000004CB0000-memory.dmp
memory/2876-51-0x00000000064E0000-0x00000000064FE000-memory.dmp
memory/2876-52-0x0000000006F00000-0x0000000006FA4000-memory.dmp
memory/2876-53-0x00000000078A0000-0x0000000007F1A000-memory.dmp
memory/2876-54-0x0000000007260000-0x000000000727A000-memory.dmp
memory/2876-55-0x00000000072E0000-0x00000000072EA000-memory.dmp
memory/2876-56-0x00000000074F0000-0x0000000007586000-memory.dmp
memory/2876-57-0x0000000007470000-0x0000000007481000-memory.dmp
memory/2876-58-0x00000000074A0000-0x00000000074AE000-memory.dmp
memory/2876-59-0x00000000074B0000-0x00000000074C5000-memory.dmp
memory/2876-60-0x00000000075B0000-0x00000000075CA000-memory.dmp
memory/2876-61-0x00000000075A0000-0x00000000075A8000-memory.dmp
memory/2876-64-0x0000000074580000-0x0000000074D31000-memory.dmp