xworm | 27c5259e178974a6fbc4c478d8c30b85262754ae2ce620e2c7295dab9d9df462

General

Target

27c5259e178974a6fbc4c478d8c30b85262754ae2ce620e2c7295dab9d9df462N.exe
Size

41KB
MD5

55e5b9b534e7bffe1f43517db9506ae0
SHA1

d55f7b182592307d8bd60a397b5b9b1f93fa9978
SHA256

27c5259e178974a6fbc4c478d8c30b85262754ae2ce620e2c7295dab9d9df462
SHA512

cce1f9cf7f10500c04ac9e71b0b07fe04ffe77de6955a93795dafb9fa0559e58eeba54b2f2d8b17d0bff537cbe9ffee6f1a3464dd5b716cb7c1f25f4acdaef2f
SSDEEP

768:cGFDV1EkGq5VuKlP0Rl0hQvvdF3q9iev6TO+h2IkAC:tFDRL5MKx07wQvFF69iu6TO+IsC

Score

10^/10

xworm execution rat trojan

Malware Config

Extracted

Family

xworm

Version

5.0

C2

193.161.193.99:57817

Mutex

jw11mUPspuncXMvt

Attributes

install_file
USB.exe

aes.plain

Signatures

Detect Xworm Payload 1 IoCs

resource	yara_rule
behavioral2/memory/3176-1-0x0000000000620000-0x0000000000630000-memory.dmp	family_xworm

Xworm
Xworm is a remote access trojan written in C#.
trojan rat xworm
Xworm family
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
3080	powershell.exe
1560	powershell.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\Control Panel\International\Geo\Nation	27c5259e178974a6fbc4c478d8c30b85262754ae2ce620e2c7295dab9d9df462N.exe

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

System Information Discovery
T1082

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
3176	27c5259e178974a6fbc4c478d8c30b85262754ae2ce620e2c7295dab9d9df462N.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
3080	powershell.exe
3080	powershell.exe
1560	powershell.exe
1560	powershell.exe
3176	27c5259e178974a6fbc4c478d8c30b85262754ae2ce620e2c7295dab9d9df462N.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	3176	27c5259e178974a6fbc4c478d8c30b85262754ae2ce620e2c7295dab9d9df462N.exe
Token: SeDebugPrivilege	3080	powershell.exe
Token: SeDebugPrivilege	1560	powershell.exe
Token: SeDebugPrivilege	3176	27c5259e178974a6fbc4c478d8c30b85262754ae2ce620e2c7295dab9d9df462N.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3176	27c5259e178974a6fbc4c478d8c30b85262754ae2ce620e2c7295dab9d9df462N.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 3176 wrote to memory of 3080	3176	27c5259e178974a6fbc4c478d8c30b85262754ae2ce620e2c7295dab9d9df462N.exe	83
PID 3176 wrote to memory of 3080	3176	27c5259e178974a6fbc4c478d8c30b85262754ae2ce620e2c7295dab9d9df462N.exe	83
PID 3176 wrote to memory of 1560	3176	27c5259e178974a6fbc4c478d8c30b85262754ae2ce620e2c7295dab9d9df462N.exe	87
PID 3176 wrote to memory of 1560	3176	27c5259e178974a6fbc4c478d8c30b85262754ae2ce620e2c7295dab9d9df462N.exe	87

C:\Users\Admin\AppData\Local\Temp\27c5259e178974a6fbc4c478d8c30b85262754ae2ce620e2c7295dab9d9df462N.exe
"C:\Users\Admin\AppData\Local\Temp\27c5259e178974a6fbc4c478d8c30b85262754ae2ce620e2c7295dab9d9df462N.exe"
1⤵
- Checks computer location settings
- Suspicious behavior: AddClipboardFormatListener
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3176
- 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\27c5259e178974a6fbc4c478d8c30b85262754ae2ce620e2c7295dab9d9df462N.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3080
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess '27c5259e178974a6fbc4c478d8c30b85262754ae2ce620e2c7295dab9d9df462N.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1560

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log

Filesize
2KB

MD5
d85ba6ff808d9e5444a4b369f5bc2730

SHA1
31aa9d96590fff6981b315e0b391b575e4c0804a

SHA256
84739c608a73509419748e4e20e6cc4e1846056c3fe1929a8300d5a1a488202f

SHA512
8c414eb55b45212af385accc16d9d562adba2123583ce70d22b91161fe878683845512a78f04dedd4ea98ed9b174dbfa98cf696370598ad8e6fbd1e714f1f249

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
944B

MD5
bd5940f08d0be56e65e5f2aaf47c538e

SHA1
d7e31b87866e5e383ab5499da64aba50f03e8443

SHA256
2d2f364c75bd2897504249f42cdf1d19374f5230aad68fa9154ea3d03e3031a6

SHA512
c34d10c7e07da44a180fae9889b61f08903aa84e8ddfa80c31c272b1ef9d491b8cec6b8a4c836c3cb1583fe8f4955c6a8db872515de3a9e10eae09610c959406

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_sm1mhnng.cpl.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/3080-12-0x00007FFB5E6D0000-0x00007FFB5F191000-memory.dmp

Filesize
10.8MB

Download
memory/3080-13-0x00007FFB5E6D0000-0x00007FFB5F191000-memory.dmp

Filesize
10.8MB

Download
memory/3080-14-0x00007FFB5E6D0000-0x00007FFB5F191000-memory.dmp

Filesize
10.8MB

Download
memory/3080-17-0x00007FFB5E6D0000-0x00007FFB5F191000-memory.dmp

Filesize
10.8MB

Download
memory/3080-2-0x000001D934E40000-0x000001D934E62000-memory.dmp

Filesize
136KB

Download
memory/3176-0-0x00007FFB5E6D3000-0x00007FFB5E6D5000-memory.dmp

Filesize
8KB

Download
memory/3176-1-0x0000000000620000-0x0000000000630000-memory.dmp

Filesize
64KB

Download
memory/3176-30-0x00007FFB5E6D0000-0x00007FFB5F191000-memory.dmp

Filesize
10.8MB

Download
memory/3176-31-0x00007FFB5E6D3000-0x00007FFB5E6D5000-memory.dmp

Filesize
8KB

Download
memory/3176-32-0x00007FFB5E6D0000-0x00007FFB5F191000-memory.dmp

Filesize
10.8MB

Download

Analysis

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