b3b7c25b19f543b3aec9c5bdc7ee48ef52a95e491a6c41e1ff717e7723c4d64f

Analysis

max time kernel
130s
max time network
156s
platform
windows10-2004_x64
resource
win10v2004-en-20220113
submitted
26/03/2022, 09:43

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General

Target
b3b7c25b19f543b3aec9c5bdc7ee48ef52a95e491a6c41e1ff717e7723c4d64f.exe
Size 1.2MB
Sample220326-lp951abbf3
SHA256 b3b7c25b19f543b3aec9c5bdc7ee48ef52a95e491a6c41e1ff717e7723c4d64f
MD5 d07a09607469ef8691d34d81376125cc
SHA1 6b5fa836c06af55cdd45d257718f24723f280b1d
SHA512 1791eb8143bbf0060d38590a723d8b96bbddf0292e3840a6febd4e50cc19ab02d96bdd1f8042ffa267ce1cd0c182d7eeac9f3883a632f829000edb0091a01295
MD5 SHA1 SHA512

Score

5^/10

Malware Config

Signatures

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1160 set thread context of 2732	1160	b3b7c25b19f543b3aec9c5bdc7ee48ef52a95e491a6c41e1ff717e7723c4d64f.exe	80

Creates scheduled task(s) 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence

Scheduled Task

T1053

pid	Process
3320	schtasks.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2732	b3b7c25b19f543b3aec9c5bdc7ee48ef52a95e491a6c41e1ff717e7723c4d64f.exe
2732	b3b7c25b19f543b3aec9c5bdc7ee48ef52a95e491a6c41e1ff717e7723c4d64f.exe
4088	powershell.exe
4088	powershell.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
1160	b3b7c25b19f543b3aec9c5bdc7ee48ef52a95e491a6c41e1ff717e7723c4d64f.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2732	b3b7c25b19f543b3aec9c5bdc7ee48ef52a95e491a6c41e1ff717e7723c4d64f.exe
Token: SeDebugPrivilege	4088	powershell.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 1160 wrote to memory of 2720	1160	b3b7c25b19f543b3aec9c5bdc7ee48ef52a95e491a6c41e1ff717e7723c4d64f.exe	79
PID 1160 wrote to memory of 2720	1160	b3b7c25b19f543b3aec9c5bdc7ee48ef52a95e491a6c41e1ff717e7723c4d64f.exe	79
PID 1160 wrote to memory of 2720	1160	b3b7c25b19f543b3aec9c5bdc7ee48ef52a95e491a6c41e1ff717e7723c4d64f.exe	79
PID 1160 wrote to memory of 2732	1160	b3b7c25b19f543b3aec9c5bdc7ee48ef52a95e491a6c41e1ff717e7723c4d64f.exe	80
PID 1160 wrote to memory of 2732	1160	b3b7c25b19f543b3aec9c5bdc7ee48ef52a95e491a6c41e1ff717e7723c4d64f.exe	80
PID 1160 wrote to memory of 2732	1160	b3b7c25b19f543b3aec9c5bdc7ee48ef52a95e491a6c41e1ff717e7723c4d64f.exe	80
PID 1160 wrote to memory of 2732	1160	b3b7c25b19f543b3aec9c5bdc7ee48ef52a95e491a6c41e1ff717e7723c4d64f.exe	80
PID 2720 wrote to memory of 3320	2720	cmd.exe	82
PID 2720 wrote to memory of 3320	2720	cmd.exe	82
PID 2720 wrote to memory of 3320	2720	cmd.exe	82
PID 2732 wrote to memory of 4088	2732	b3b7c25b19f543b3aec9c5bdc7ee48ef52a95e491a6c41e1ff717e7723c4d64f.exe	84
PID 2732 wrote to memory of 4088	2732	b3b7c25b19f543b3aec9c5bdc7ee48ef52a95e491a6c41e1ff717e7723c4d64f.exe	84
PID 2732 wrote to memory of 4088	2732	b3b7c25b19f543b3aec9c5bdc7ee48ef52a95e491a6c41e1ff717e7723c4d64f.exe	84

C:\Users\Admin\AppData\Local\Temp\b3b7c25b19f543b3aec9c5bdc7ee48ef52a95e491a6c41e1ff717e7723c4d64f.exe
"C:\Users\Admin\AppData\Local\Temp\b3b7c25b19f543b3aec9c5bdc7ee48ef52a95e491a6c41e1ff717e7723c4d64f.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:1160
- C:\Windows\SysWOW64\cmd.exe
  cmd /c schtasks /Create /TN name /XML "C:\Users\Admin\AppData\Local\Temp\3bc9d0e4991c4127854c846f1c363314.xml"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2720
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /Create /TN name /XML "C:\Users\Admin\AppData\Local\Temp\3bc9d0e4991c4127854c846f1c363314.xml"
    3⤵
    - Creates scheduled task(s)
    PID:3320
- C:\Users\Admin\AppData\Local\Temp\b3b7c25b19f543b3aec9c5bdc7ee48ef52a95e491a6c41e1ff717e7723c4d64f.exe
  "C:\Users\Admin\AppData\Local\Temp\b3b7c25b19f543b3aec9c5bdc7ee48ef52a95e491a6c41e1ff717e7723c4d64f.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2732
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    "powershell" Start-Sleep -Seconds 2; Remove-Item -path 'C:\Users\Admin\AppData\Local\Temp\b3b7c25b19f543b3aec9c5bdc7ee48ef52a95e491a6c41e1ff717e7723c4d64f.exe'
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:4088

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

T1053

Persistence

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

T1053

Defense Evasion

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

3bc9d0e4991c4127854c846f1c363314.xml

Path C:\Users\Admin\AppData\Local\Temp\3bc9d0e4991c4127854c846f1c363314.xml
Size 1KB
SHA256 8f2648a15094c455e21cab1ba01133d9d9d17caaab1bb2ee782da160898880e4
MD5 c673ecc050b1038f727be09aa61cb4b1
SHA1 d2960b6d62810ce8745f6353d6924ae79af01e7e
SHA512 d6b75c8068c3d9208585413f7a799f69b05e141446d09925f9aae34ac65c0745f37196ec3aeb369e2c8dea6ddfcc55c07fe8f227a06d79dfa408f3d2315c29e6
MD5 SHA1 SHA512

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memory/1160-130-0x0000000000400000-0x000000000049C000-memory.dmp

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memory/2732-135-0x0000000005830000-0x00000000058C2000-memory.dmp

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memory/2732-136-0x0000000005E80000-0x0000000006424000-memory.dmp

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memory/2732-137-0x00000000058D0000-0x0000000005936000-memory.dmp

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memory/4088-139-0x00000000047D0000-0x0000000004806000-memory.dmp

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memory/4088-140-0x0000000004E40000-0x0000000005468000-memory.dmp

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memory/4088-141-0x00000000054D0000-0x00000000054F2000-memory.dmp

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memory/4088-142-0x0000000005670000-0x00000000056D6000-memory.dmp

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memory/4088-143-0x0000000005D50000-0x0000000005D6E000-memory.dmp

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memory/4088-144-0x0000000002445000-0x0000000002447000-memory.dmp

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memory/4088-145-0x0000000007330000-0x00000000079AA000-memory.dmp

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memory/4088-146-0x0000000006250000-0x000000000626A000-memory.dmp

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memory/4088-147-0x0000000006F50000-0x0000000006FE6000-memory.dmp

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memory/4088-148-0x0000000006EE0000-0x0000000006F02000-memory.dmp

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