xworm | 5a3ab5f3b0d3588e3e3e83402f1676334c6a37b951f8ef78a212044682ddcc76

General

Target

5a3ab5f3b0d3588e3e3e83402f1676334c6a37b951f8ef78a212044682ddcc76.exe
Size

67KB
MD5

dca3c51239ffcd016b774d7155d18c5a
SHA1

ce2be9c645d7cf5b506e7cc4051ae6af1f443f57
SHA256

5a3ab5f3b0d3588e3e3e83402f1676334c6a37b951f8ef78a212044682ddcc76
SHA512

2e8c1735233701dc6cebd207054224c49f2e745c6004f5656a97b567e66505c8cd1eef7b376fa5667df586586ad5ddc4000af01cab79ab2d36584f044f0c5bfa
SSDEEP

1536:Gye+8rrczLw512bjrW/b5DQY6zOiIQqJ0:0GLrb3W1uOiI30

Score

10^/10

xworm execution persistence rat trojan

Malware Config

Extracted

Family

xworm

Version

3.1

C2

girl-tries.gl.at.ply.gg:7131

Attributes

Install_directory
%AppData%
install_file
USB.exe

Signatures

Detect Xworm Payload 2 IoCs

resource	yara_rule
behavioral2/memory/1216-1-0x0000000000150000-0x0000000000168000-memory.dmp	family_xworm
behavioral2/files/0x00100000000233c8-48.dat	family_xworm

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

Command and Scripting Interpreter: PowerShell 1 TTPs 3 IoCs

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

execution

PowerShell

T1059.001

pid	Process
3708	powershell.exe
408	powershell.exe
2732	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-1-5-21-1750093773-264148664-1320403265-1000\Control Panel\International\Geo\Nation	5a3ab5f3b0d3588e3e3e83402f1676334c6a37b951f8ef78a212044682ddcc76.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\5a3ab5f3b0d3588e3e3e83402f1676334c6a37b951f8ef78a212044682ddcc76.lnk	5a3ab5f3b0d3588e3e3e83402f1676334c6a37b951f8ef78a212044682ddcc76.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\5a3ab5f3b0d3588e3e3e83402f1676334c6a37b951f8ef78a212044682ddcc76.lnk	5a3ab5f3b0d3588e3e3e83402f1676334c6a37b951f8ef78a212044682ddcc76.exe

Executes dropped EXE 3 IoCs

pid	Process
2476	5a3ab5f3b0d3588e3e3e83402f1676334c6a37b951f8ef78a212044682ddcc76.exe
4988	5a3ab5f3b0d3588e3e3e83402f1676334c6a37b951f8ef78a212044682ddcc76.exe
4400	5a3ab5f3b0d3588e3e3e83402f1676334c6a37b951f8ef78a212044682ddcc76.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1750093773-264148664-1320403265-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\5a3ab5f3b0d3588e3e3e83402f1676334c6a37b951f8ef78a212044682ddcc76 = "C:\\Users\\Admin\\AppData\\Roaming\\5a3ab5f3b0d3588e3e3e83402f1676334c6a37b951f8ef78a212044682ddcc76.exe"	5a3ab5f3b0d3588e3e3e83402f1676334c6a37b951f8ef78a212044682ddcc76.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
14	ip-api.com

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

System Information Discovery
T1082

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

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

persistence execution

Scheduled Task

T1053.005

pid	Process
4672	schtasks.exe

Suspicious behavior: EnumeratesProcesses 7 IoCs

pid	Process
3708	powershell.exe
3708	powershell.exe
408	powershell.exe
408	powershell.exe
2732	powershell.exe
2732	powershell.exe
1216	5a3ab5f3b0d3588e3e3e83402f1676334c6a37b951f8ef78a212044682ddcc76.exe

Suspicious use of AdjustPrivilegeToken 8 IoCs

description	pid	Process
Token: SeDebugPrivilege	1216	5a3ab5f3b0d3588e3e3e83402f1676334c6a37b951f8ef78a212044682ddcc76.exe
Token: SeDebugPrivilege	3708	powershell.exe
Token: SeDebugPrivilege	408	powershell.exe
Token: SeDebugPrivilege	2732	powershell.exe
Token: SeDebugPrivilege	1216	5a3ab5f3b0d3588e3e3e83402f1676334c6a37b951f8ef78a212044682ddcc76.exe
Token: SeDebugPrivilege	2476	5a3ab5f3b0d3588e3e3e83402f1676334c6a37b951f8ef78a212044682ddcc76.exe
Token: SeDebugPrivilege	4988	5a3ab5f3b0d3588e3e3e83402f1676334c6a37b951f8ef78a212044682ddcc76.exe
Token: SeDebugPrivilege	4400	5a3ab5f3b0d3588e3e3e83402f1676334c6a37b951f8ef78a212044682ddcc76.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1216	5a3ab5f3b0d3588e3e3e83402f1676334c6a37b951f8ef78a212044682ddcc76.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1216 wrote to memory of 3708	1216	5a3ab5f3b0d3588e3e3e83402f1676334c6a37b951f8ef78a212044682ddcc76.exe	87
PID 1216 wrote to memory of 3708	1216	5a3ab5f3b0d3588e3e3e83402f1676334c6a37b951f8ef78a212044682ddcc76.exe	87
PID 1216 wrote to memory of 408	1216	5a3ab5f3b0d3588e3e3e83402f1676334c6a37b951f8ef78a212044682ddcc76.exe	89
PID 1216 wrote to memory of 408	1216	5a3ab5f3b0d3588e3e3e83402f1676334c6a37b951f8ef78a212044682ddcc76.exe	89
PID 1216 wrote to memory of 2732	1216	5a3ab5f3b0d3588e3e3e83402f1676334c6a37b951f8ef78a212044682ddcc76.exe	91
PID 1216 wrote to memory of 2732	1216	5a3ab5f3b0d3588e3e3e83402f1676334c6a37b951f8ef78a212044682ddcc76.exe	91
PID 1216 wrote to memory of 4672	1216	5a3ab5f3b0d3588e3e3e83402f1676334c6a37b951f8ef78a212044682ddcc76.exe	93
PID 1216 wrote to memory of 4672	1216	5a3ab5f3b0d3588e3e3e83402f1676334c6a37b951f8ef78a212044682ddcc76.exe	93

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012

C:\Users\Admin\AppData\Local\Temp\5a3ab5f3b0d3588e3e3e83402f1676334c6a37b951f8ef78a212044682ddcc76.exe
"C:\Users\Admin\AppData\Local\Temp\5a3ab5f3b0d3588e3e3e83402f1676334c6a37b951f8ef78a212044682ddcc76.exe"
1⤵
- Checks computer location settings
- Drops startup file
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1216
- 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\5a3ab5f3b0d3588e3e3e83402f1676334c6a37b951f8ef78a212044682ddcc76.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3708
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess '5a3ab5f3b0d3588e3e3e83402f1676334c6a37b951f8ef78a212044682ddcc76.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:408
- 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\Roaming\5a3ab5f3b0d3588e3e3e83402f1676334c6a37b951f8ef78a212044682ddcc76.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2732
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "5a3ab5f3b0d3588e3e3e83402f1676334c6a37b951f8ef78a212044682ddcc76" /tr "C:\Users\Admin\AppData\Roaming\5a3ab5f3b0d3588e3e3e83402f1676334c6a37b951f8ef78a212044682ddcc76.exe"
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:4672

C:\Users\Admin\AppData\Roaming\5a3ab5f3b0d3588e3e3e83402f1676334c6a37b951f8ef78a212044682ddcc76.exe
C:\Users\Admin\AppData\Roaming\5a3ab5f3b0d3588e3e3e83402f1676334c6a37b951f8ef78a212044682ddcc76.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:2476

C:\Users\Admin\AppData\Roaming\5a3ab5f3b0d3588e3e3e83402f1676334c6a37b951f8ef78a212044682ddcc76.exe
C:\Users\Admin\AppData\Roaming\5a3ab5f3b0d3588e3e3e83402f1676334c6a37b951f8ef78a212044682ddcc76.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:4988

C:\Users\Admin\AppData\Roaming\5a3ab5f3b0d3588e3e3e83402f1676334c6a37b951f8ef78a212044682ddcc76.exe
C:\Users\Admin\AppData\Roaming\5a3ab5f3b0d3588e3e3e83402f1676334c6a37b951f8ef78a212044682ddcc76.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:4400

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\5a3ab5f3b0d3588e3e3e83402f1676334c6a37b951f8ef78a212044682ddcc76.exe.log

Filesize
654B

MD5
2ff39f6c7249774be85fd60a8f9a245e

SHA1
684ff36b31aedc1e587c8496c02722c6698c1c4e

SHA256
e1b91642d85d98124a6a31f710e137ab7fd90dec30e74a05ab7fcf3b7887dced

SHA512
1d7e8b92ef4afd463d62cfa7e8b9d1799db5bf2a263d3cd7840df2e0a1323d24eb595b5f8eb615c6cb15f9e3a7b4fc99f8dd6a3d34479222e966ec708998aed1

Download Submit
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
2e907f77659a6601fcc408274894da2e

SHA1
9f5b72abef1cd7145bf37547cdb1b9254b4efe9d

SHA256
385da35673330e21ac02545220552fe301fe54dedefbdafc097ac4342a295233

SHA512
34fa0fff24f6550f55f828541aaefe5d75c86f8f0842d54b50065e9746f9662bb7209c74c9a9571540b9855bb3851f01db613190024e89b198d485bb5dc07721

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

Filesize
944B

MD5
b51dc9e5ec3c97f72b4ca9488bbb4462

SHA1
5c1e8c0b728cd124edcacefb399bbd5e25b21bd3

SHA256
976f9534aa2976c85c2455bdde786a3f55d63aefdd40942eba1223c4c93590db

SHA512
0e5aa6cf64c535aefb833e5757b68e1094c87424abe2615a7d7d26b1b31eff358d12e36e75ca57fd690a9919b776600bf4c5c0e5a5df55366ba62238bdf3f280

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_zmslrerm.4tl.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Roaming\5a3ab5f3b0d3588e3e3e83402f1676334c6a37b951f8ef78a212044682ddcc76.exe

Filesize
67KB

MD5
dca3c51239ffcd016b774d7155d18c5a

SHA1
ce2be9c645d7cf5b506e7cc4051ae6af1f443f57

SHA256
5a3ab5f3b0d3588e3e3e83402f1676334c6a37b951f8ef78a212044682ddcc76

SHA512
2e8c1735233701dc6cebd207054224c49f2e745c6004f5656a97b567e66505c8cd1eef7b376fa5667df586586ad5ddc4000af01cab79ab2d36584f044f0c5bfa

Download Submit
memory/1216-2-0x00007FF943C60000-0x00007FF944721000-memory.dmp

Filesize
10.8MB

Download
memory/1216-0-0x00007FF943C63000-0x00007FF943C65000-memory.dmp

Filesize
8KB

Download
memory/1216-50-0x00007FF943C63000-0x00007FF943C65000-memory.dmp

Filesize
8KB

Download
memory/1216-51-0x00007FF943C60000-0x00007FF944721000-memory.dmp

Filesize
10.8MB

Download
memory/1216-1-0x0000000000150000-0x0000000000168000-memory.dmp

Filesize
96KB

Download
memory/3708-13-0x0000023228C50000-0x0000023228C72000-memory.dmp

Filesize
136KB

Download
memory/3708-15-0x00007FF943C60000-0x00007FF944721000-memory.dmp

Filesize
10.8MB

Download
memory/3708-18-0x00007FF943C60000-0x00007FF944721000-memory.dmp

Filesize
10.8MB

Download
memory/3708-14-0x00007FF943C60000-0x00007FF944721000-memory.dmp

Filesize
10.8MB

Download
memory/3708-12-0x00007FF943C60000-0x00007FF944721000-memory.dmp

Filesize
10.8MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads