Analysis Overview
SHA256
3b746894d0a71f6162d96d2af36bea8d794d7e23af44c5536fcf97d416510a6e
Threat Level: Known bad
The file 3b746894d0a71f6162d96d2af36bea8d794d7e23af44c5536fcf97d416510a6e.exe was found to be: Known bad.
Malicious Activity Summary
Formbook
Formbook payload
Detects executables packed with SmartAssembly
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 AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-05-10 01:17
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-05-10 01:17
Reported
2024-05-10 01:20
Platform
win7-20240221-en
Max time kernel
117s
Max time network
121s
Command Line
Signatures
Formbook
Detects executables packed with SmartAssembly
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
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 3024 set thread context of 2548 | 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\tmp99CF.tmp"
C:\Users\Admin\AppData\Local\Temp\3b746894d0a71f6162d96d2af36bea8d794d7e23af44c5536fcf97d416510a6e.exe
"C:\Users\Admin\AppData\Local\Temp\3b746894d0a71f6162d96d2af36bea8d794d7e23af44c5536fcf97d416510a6e.exe"
Network
Files
memory/3024-3-0x00000000006C0000-0x00000000006DE000-memory.dmp
memory/3024-2-0x0000000074940000-0x000000007502E000-memory.dmp
memory/3024-1-0x0000000000E00000-0x0000000000EBA000-memory.dmp
memory/3024-0-0x000000007494E000-0x000000007494F000-memory.dmp
memory/3024-4-0x00000000006E0000-0x00000000006F0000-memory.dmp
memory/3024-5-0x0000000000740000-0x0000000000756000-memory.dmp
memory/3024-6-0x00000000078D0000-0x0000000007946000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\tmp99CF.tmp
| MD5 | 1759d1acd994438c79f3d66d26f54ef1 |
| SHA1 | b9aaf2de40506b844b41af8c722dbedbea5e63f4 |
| SHA256 | f2b7ed167b5fc9b44212a79f186d6dc87ec9364c0bf10d3261b17ee797dd13ce |
| SHA512 | fbe8cde13e3beac88086c5d3c0e5a540a71c8caade366ec2c32e4ef8506c7b0679ba718708ee0e50a9e6987c0aab104645a6bd8f367d4fb229dde0e0e6655044 |
memory/2548-12-0x0000000000400000-0x000000000042F000-memory.dmp
memory/2548-17-0x0000000000400000-0x000000000042F000-memory.dmp
memory/2548-16-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
memory/2548-14-0x0000000000400000-0x000000000042F000-memory.dmp
memory/3024-18-0x0000000074940000-0x000000007502E000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-05-10 01:17
Reported
2024-05-10 01:20
Platform
win10v2004-20240508-en
Max time kernel
125s
Max time network
130s
Command Line
Signatures
Formbook
Detects executables packed with SmartAssembly
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
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-1-5-21-1181767204-2009306918-3718769404-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\3b746894d0a71f6162d96d2af36bea8d794d7e23af44c5536fcf97d416510a6e.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 4760 set thread context of 4660 | 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 --field-trial-handle=4252,i,7012731823941922179,12386606396608877869,262144 --variations-seed-version --mojo-platform-channel-handle=4248 /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\tmp1596.tmp"
C:\Users\Admin\AppData\Local\Temp\3b746894d0a71f6162d96d2af36bea8d794d7e23af44c5536fcf97d416510a6e.exe
"C:\Users\Admin\AppData\Local\Temp\3b746894d0a71f6162d96d2af36bea8d794d7e23af44c5536fcf97d416510a6e.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 140.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 8.8.8.8.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 26.35.223.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 0.204.248.87.in-addr.arpa | udp |
| NL | 23.62.61.97:443 | www.bing.com | tcp |
| US | 8.8.8.8:53 | 97.61.62.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 183.59.114.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 15.164.165.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 13.227.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 77.190.18.2.in-addr.arpa | udp |
Files
memory/4760-0-0x000000007535E000-0x000000007535F000-memory.dmp
memory/4760-1-0x0000000000D20000-0x0000000000DDA000-memory.dmp
memory/4760-2-0x0000000008040000-0x00000000085E4000-memory.dmp
memory/4760-3-0x0000000007B70000-0x0000000007C02000-memory.dmp
memory/4760-4-0x0000000003100000-0x000000000310A000-memory.dmp
memory/4760-5-0x0000000075350000-0x0000000075B00000-memory.dmp
memory/4760-6-0x0000000007E50000-0x0000000007EEC000-memory.dmp
memory/4760-7-0x0000000007C80000-0x0000000007C9E000-memory.dmp
memory/4760-8-0x0000000007FF0000-0x0000000008000000-memory.dmp
memory/4760-9-0x0000000008020000-0x0000000008036000-memory.dmp
memory/4760-10-0x00000000095E0000-0x0000000009656000-memory.dmp
memory/4892-15-0x0000000004690000-0x00000000046C6000-memory.dmp
memory/4892-17-0x0000000004D00000-0x0000000005328000-memory.dmp
memory/4892-16-0x0000000075350000-0x0000000075B00000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\tmp1596.tmp
| MD5 | d1280c105f30b79317be2be9881f1f52 |
| SHA1 | 020ac800ced09d88eee3adf8bde329cb3ffe82c3 |
| SHA256 | 5ad258a6ca0ff194dad68db87c8d48575a43f5c86f009f03f41f05a8a9c593b8 |
| SHA512 | 6d144502a796d9e9507332a486ffafad20a7fc13b14b88911363561294b1d1ac8ef2a81a7ca9f6154d82d450cdc05c4eaf958d19606958805f0bc6c84f3d6f3c |
memory/4892-19-0x0000000004B50000-0x0000000004B72000-memory.dmp
memory/4892-21-0x0000000075350000-0x0000000075B00000-memory.dmp
memory/4892-22-0x0000000005330000-0x0000000005396000-memory.dmp
memory/4892-20-0x00000000053A0000-0x0000000005406000-memory.dmp
memory/4892-25-0x0000000005620000-0x0000000005974000-memory.dmp
memory/4892-24-0x0000000075350000-0x0000000075B00000-memory.dmp
memory/4660-23-0x0000000000400000-0x000000000042F000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_tzf0zqsu.vd3.ps1
| MD5 | d17fe0a3f47be24a6453e9ef58c94641 |
| SHA1 | 6ab83620379fc69f80c0242105ddffd7d98d5d9d |
| SHA256 | 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7 |
| SHA512 | 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82 |
memory/4760-37-0x0000000075350000-0x0000000075B00000-memory.dmp
memory/4660-36-0x00000000019D0000-0x0000000001D1A000-memory.dmp
memory/4892-38-0x0000000005C10000-0x0000000005C2E000-memory.dmp
memory/4892-39-0x0000000006170000-0x00000000061BC000-memory.dmp
memory/4892-41-0x0000000006C00000-0x0000000006C32000-memory.dmp
memory/4892-40-0x000000007F930000-0x000000007F940000-memory.dmp
memory/4892-42-0x0000000075BE0000-0x0000000075C2C000-memory.dmp
memory/4892-52-0x00000000061F0000-0x000000000620E000-memory.dmp
memory/4892-53-0x00000000021A0000-0x00000000021B0000-memory.dmp
memory/4892-54-0x0000000006C40000-0x0000000006CE3000-memory.dmp
memory/4892-55-0x00000000075A0000-0x0000000007C1A000-memory.dmp
memory/4892-56-0x0000000006F60000-0x0000000006F7A000-memory.dmp
memory/4892-57-0x0000000006FD0000-0x0000000006FDA000-memory.dmp
memory/4892-58-0x00000000071E0000-0x0000000007276000-memory.dmp
memory/4892-59-0x0000000007160000-0x0000000007171000-memory.dmp
memory/4892-60-0x0000000007190000-0x000000000719E000-memory.dmp
memory/4892-61-0x00000000071A0000-0x00000000071B4000-memory.dmp
memory/4892-62-0x00000000072A0000-0x00000000072BA000-memory.dmp
memory/4892-63-0x0000000007280000-0x0000000007288000-memory.dmp
memory/4892-66-0x0000000075350000-0x0000000075B00000-memory.dmp