xworm | f326b722d4dd6d61359b374019a3cc74f2fbd4b3b1511c2d647b08fdc7f33135

Analysis

max time kernel
1632s
max time network
1797s
platform
windows10-1703_x64
resource
win10-20240404-en
resource tags

arch:x64arch:x86image:win10-20240404-enlocale:en-usos:windows10-1703-x64system
submitted
04/06/2024, 14:02

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General

Target
Process hacker.exe
Size 39KB
Sample240604-rb7evahg51
SHA256 f326b722d4dd6d61359b374019a3cc74f2fbd4b3b1511c2d647b08fdc7f33135
MD5 380f1aa5a0b081df600dd3963cea32b2
SHA1 10cc40c32bf6fef6f58f5980b9a4413115c0e608
SHA512 1dff1708633b0187edf11e951a733ac3c8928ca2e9a109483ef5fca3118a86d68e91aefde51657df6ef2c8b862dbf5f05923e8742056deee6ff684284ef9047d
SSDEEP 768:7V9G+zrPxNlxd80VuTU35uXuyjWxF5Pm9j/Tl67OMhZ3IC:7VvrPfqwP8u8aFM9zTl67OMvx
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

xworm execution rat trojan

Malware Config

Extracted

Family

xworm

Version

model-dt.gl.at.ply.gg:61584

Mutex

Qnv4UI0eUKWzJk4u

Attributes

install_file
USB.exe

aes.plain

Signatures

Detect Xworm Payload 1 IoCs

resource	yara_rule
behavioral3/memory/4384-0-0x0000000000C30000-0x0000000000C40000-memory.dmp	family_xworm

Xworm
Xworm is a remote access trojan written in C#.
trojan rat xworm

Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

pid	Process
636	powershell.exe
4512	powershell.exe

Looks up external IP address via web service 1 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
1	ip-api.com

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 7 IoCs

pid	Process
636	powershell.exe
636	powershell.exe
636	powershell.exe
4512	powershell.exe
4512	powershell.exe
4512	powershell.exe
4384	Process hacker.exe

Suspicious use of AdjustPrivilegeToken 46 IoCs

description	pid	Process
Token: SeDebugPrivilege	4384	Process hacker.exe
Token: SeDebugPrivilege	636	powershell.exe
Token: SeIncreaseQuotaPrivilege	636	powershell.exe
Token: SeSecurityPrivilege	636	powershell.exe
Token: SeTakeOwnershipPrivilege	636	powershell.exe
Token: SeLoadDriverPrivilege	636	powershell.exe
Token: SeSystemProfilePrivilege	636	powershell.exe
Token: SeSystemtimePrivilege	636	powershell.exe
Token: SeProfSingleProcessPrivilege	636	powershell.exe
Token: SeIncBasePriorityPrivilege	636	powershell.exe
Token: SeCreatePagefilePrivilege	636	powershell.exe
Token: SeBackupPrivilege	636	powershell.exe
Token: SeRestorePrivilege	636	powershell.exe
Token: SeShutdownPrivilege	636	powershell.exe
Token: SeDebugPrivilege	636	powershell.exe
Token: SeSystemEnvironmentPrivilege	636	powershell.exe
Token: SeRemoteShutdownPrivilege	636	powershell.exe
Token: SeUndockPrivilege	636	powershell.exe
Token: SeManageVolumePrivilege	636	powershell.exe
Token: 33	636	powershell.exe
Token: 34	636	powershell.exe
Token: 35	636	powershell.exe
Token: 36	636	powershell.exe
Token: SeDebugPrivilege	4512	powershell.exe
Token: SeIncreaseQuotaPrivilege	4512	powershell.exe
Token: SeSecurityPrivilege	4512	powershell.exe
Token: SeTakeOwnershipPrivilege	4512	powershell.exe
Token: SeLoadDriverPrivilege	4512	powershell.exe
Token: SeSystemProfilePrivilege	4512	powershell.exe
Token: SeSystemtimePrivilege	4512	powershell.exe
Token: SeProfSingleProcessPrivilege	4512	powershell.exe
Token: SeIncBasePriorityPrivilege	4512	powershell.exe
Token: SeCreatePagefilePrivilege	4512	powershell.exe
Token: SeBackupPrivilege	4512	powershell.exe
Token: SeRestorePrivilege	4512	powershell.exe
Token: SeShutdownPrivilege	4512	powershell.exe
Token: SeDebugPrivilege	4512	powershell.exe
Token: SeSystemEnvironmentPrivilege	4512	powershell.exe
Token: SeRemoteShutdownPrivilege	4512	powershell.exe
Token: SeUndockPrivilege	4512	powershell.exe
Token: SeManageVolumePrivilege	4512	powershell.exe
Token: 33	4512	powershell.exe
Token: 34	4512	powershell.exe
Token: 35	4512	powershell.exe
Token: 36	4512	powershell.exe
Token: SeDebugPrivilege	4384	Process hacker.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4384	Process hacker.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 4384 wrote to memory of 636	4384	Process hacker.exe	74
PID 4384 wrote to memory of 636	4384	Process hacker.exe	74
PID 4384 wrote to memory of 4512	4384	Process hacker.exe	77
PID 4384 wrote to memory of 4512	4384	Process hacker.exe	77

C:\Users\Admin\AppData\Local\Temp\Process hacker.exe
"C:\Users\Admin\AppData\Local\Temp\Process hacker.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4384
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\Process hacker.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:636
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'Process hacker.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4512

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

powershell.exe.log

Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log
Size 3KB
SHA256 fdd7d9def6f9f0c0f2e60dbc8a2d1999071cd7d3095e9e087bb1cda7a614ac3c
MD5 8592ba100a78835a6b94d5949e13dfc1
SHA1 63e901200ab9a57c7dd4c078d7f75dcd3b357020
SHA512 87f98e6cb61b2a2a7d65710c4d33881d89715eb7a06e00d492259f35c3902498baabffc5886be0ec5a14312ad4c262e3fc40cd3a5cb91701af0fb229726b88c3
MD5 SHA1 SHA512

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StartupProfileData-NonInteractive

Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
Size 1KB
SHA256 6b4daa017841a1d6e81eb799f4c5f9a4b4aabdc0f1f4b6220f65f28336153c42
MD5 136297279c34ec394e8c6fb5e179a2a5
SHA1 338c7e4a2494bfe9b7d85adbc62fcab37a9c6507
SHA512 7684a4083887d4b3a3f9bba41a166ee7346148adfe48536b1940880fab32ba931f3644cbf36e672ecea9d4f15220a6db25a77f81f3c57e3549a9dac4915fb139
MD5 SHA1 SHA512

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__PSScriptPolicyTest_2dtosldz.yo1.ps1

Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_2dtosldz.yo1.ps1
Size 1B
SHA256 6b86b273ff34fce19d6b804eff5a3f5747ada4eaa22f1d49c01e52ddb7875b4b
MD5 c4ca4238a0b923820dcc509a6f75849b
SHA1 356a192b7913b04c54574d18c28d46e6395428ab
SHA512 4dff4ea340f0a823f15d3f4f01ab62eae0e5da579ccb851f8db9dfe84c58b2b37b89903a740e1ee172da793a6e79d560e5f7f9bd058a12a280433ed6fa46510a
MD5 SHA1 SHA512

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memory/636-10-0x000001B8D43D0000-0x000001B8D43F2000-memory.dmp

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memory/636-8-0x00007FF95A540000-0x00007FF95AF2C000-memory.dmp

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memory/636-9-0x00007FF95A540000-0x00007FF95AF2C000-memory.dmp

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memory/636-13-0x000001B8D46D0000-0x000001B8D4746000-memory.dmp

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memory/636-7-0x00007FF95A540000-0x00007FF95AF2C000-memory.dmp

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memory/636-51-0x00007FF95A540000-0x00007FF95AF2C000-memory.dmp

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memory/4384-0-0x0000000000C30000-0x0000000000C40000-memory.dmp

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memory/4384-2-0x00007FF95A540000-0x00007FF95AF2C000-memory.dmp

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memory/4384-1-0x00007FF95A543000-0x00007FF95A544000-memory.dmp

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memory/4384-96-0x00007FF95A543000-0x00007FF95A544000-memory.dmp

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memory/4384-97-0x00007FF95A540000-0x00007FF95AF2C000-memory.dmp

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