xworm | 3c2bfb840a89298362078051b0b0090acb291298cfa3189572ecdc954baaed0f

Resubmissions

22-01-2025 15:48

250122-s86egsvkhk 10

22-01-2025 14:37

250122-ry8w7a1kds 10

Analysis

max time kernel
90s
max time network
137s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
22-01-2025 14:37

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General

Target

real shit/SamsungCommisionExternal.exe
Size

63KB
MD5

6f30a565049364df3068b5bc88fd36d6
SHA1

2ca485eb96156bfc561acd69649cf3339da6c610
SHA256

e65d7f5beb1f383e07917e867fb3b18a59a597319d152ad148b37a8924b8780d
SHA512

c01edc2fe4e5ad26b9511cc0bc114221878cf961b436a091a79611ce27da69ce7cf58afdcc71d295ad25f08701b1eb16c0c298fd22fbcb69004f760ea2b89ffe
SSDEEP

1536:9VbfG3pj8mIfpubPOggHEyj26+6POhjV5yD/9:/fGZrIf0bPDgkyjnPOhp5U9

Score

10^/10

xworm execution persistence rat trojan

Malware Config

Extracted

Family

xworm

127.0.0.1:24707

modified-begun.gl.at.ply.gg:24707

Attributes

Install_directory
%AppData%
install_file
USB.exe

Signatures

Detect Xworm Payload 1 IoCs

resource	yara_rule
behavioral4/memory/4112-1-0x0000000000560000-0x0000000000576000-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 4 IoCs

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

execution

PowerShell

T1059.001

pid	Process
5060	powershell.exe
1256	powershell.exe
4156	powershell.exe
1920	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-1-5-21-4050598569-1597076380-177084960-1000\Control Panel\International\Geo\Nation	SamsungCommisionExternal.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Smasmug.lnk	SamsungCommisionExternal.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Smasmug.lnk	SamsungCommisionExternal.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-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Smasmug = "C:\\Users\\Admin\\AppData\\Roaming\\Smasmug"	SamsungCommisionExternal.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
13	ip-api.com

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

System Information Discovery
T1082

Delays execution with timeout.exe 1 IoCs

defense_evasion

pid	Process
3248	timeout.exe

Suspicious behavior: EnumeratesProcesses 9 IoCs

pid	Process
4156	powershell.exe
4156	powershell.exe
1920	powershell.exe
1920	powershell.exe
5060	powershell.exe
5060	powershell.exe
1256	powershell.exe
1256	powershell.exe
4112	SamsungCommisionExternal.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeDebugPrivilege	4112	SamsungCommisionExternal.exe
Token: SeDebugPrivilege	4156	powershell.exe
Token: SeDebugPrivilege	1920	powershell.exe
Token: SeDebugPrivilege	5060	powershell.exe
Token: SeDebugPrivilege	1256	powershell.exe
Token: SeDebugPrivilege	4112	SamsungCommisionExternal.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4112	SamsungCommisionExternal.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 4112 wrote to memory of 4156	4112	SamsungCommisionExternal.exe	85
PID 4112 wrote to memory of 4156	4112	SamsungCommisionExternal.exe	85
PID 4112 wrote to memory of 1920	4112	SamsungCommisionExternal.exe	87
PID 4112 wrote to memory of 1920	4112	SamsungCommisionExternal.exe	87
PID 4112 wrote to memory of 5060	4112	SamsungCommisionExternal.exe	89
PID 4112 wrote to memory of 5060	4112	SamsungCommisionExternal.exe	89
PID 4112 wrote to memory of 1256	4112	SamsungCommisionExternal.exe	91
PID 4112 wrote to memory of 1256	4112	SamsungCommisionExternal.exe	91
PID 4112 wrote to memory of 4360	4112	SamsungCommisionExternal.exe	101
PID 4112 wrote to memory of 4360	4112	SamsungCommisionExternal.exe	101
PID 4360 wrote to memory of 3248	4360	cmd.exe	103
PID 4360 wrote to memory of 3248	4360	cmd.exe	103

C:\Users\Admin\AppData\Local\Temp\real shit\SamsungCommisionExternal.exe
"C:\Users\Admin\AppData\Local\Temp\real shit\SamsungCommisionExternal.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:4112
- 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\real shit\SamsungCommisionExternal.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4156
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'SamsungCommisionExternal.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1920
- 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\Smasmug'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:5060
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'Smasmug'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1256
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmpA8BE.tmp.bat""
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4360
- - C:\Windows\system32\timeout.exe
    timeout 3
    3⤵
    - Delays execution with timeout.exe
    PID:3248

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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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
d28a889fd956d5cb3accfbaf1143eb6f

SHA1
157ba54b365341f8ff06707d996b3635da8446f7

SHA256
21e5d7ccf80a293e6ba30ed728846ca19c929c52b96e2c8d34e27cd2234f1d45

SHA512
0b6d88deb9be85722e6a78d5886d49f2caf407a59e128d2b4ed74c1356f9928c40048a62731959f2460e9ff9d9feee311043d2a37abe3bb92c2b76a44281478c

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

Filesize
944B

MD5
60945d1a2e48da37d4ce8d9c56b6845a

SHA1
83e80a6acbeb44b68b0da00b139471f428a9d6c1

SHA256
314b91c00997034d6e015f40230d90ebbf57de5dc938b62c1a214d591793dbe3

SHA512
5d068f1d6443e26ae3cad1c80f969e50e5860967b314153c4d3b6efd1cfa39f0907c6427bec7fa43db079f258b6357e4e9a1b0b1a36b1481d2049ea0e67909ed

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

Filesize
944B

MD5
6d14ccefeb263594e60b1765e131f7a3

SHA1
4a9ebdc0dff58645406c40b7b140e1b174756721

SHA256
57cd435c8b2bf10a2c77698301789c032e1b6b623ff1420c72e8bca0b10f1e5c

SHA512
2013a26123f72a4106524fd9d7389ac4654f97033d22707efc084fb2a3ad01c298eb64f01bb64861ab603615022dbe7cfc97475346edb16b3ba72e905127f101

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_aojqt5fw.uyx.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpA8BE.tmp.bat

Filesize
186B

MD5
8b7a3eedd88e7d8c998054c799863431

SHA1
ac47657b35d3120433b2c5640d43e2654275ba4b

SHA256
db7b05cb474376480e9f61ef78c20f6fff567d53cfd161b9016e0109c3e751cb

SHA512
293446199b465825b4cccb6b31b9301362710580c90f911b6aa328c19dc6f1bc6facd80d1e02a62b3d2ec5ccff893861db6abdb3cdea53de35fcb69a4e040bf4

Download Submit
memory/4112-1-0x0000000000560000-0x0000000000576000-memory.dmp

Filesize
88KB

Download
memory/4112-2-0x00007FF80F380000-0x00007FF80FE41000-memory.dmp

Filesize
10.8MB

Download
memory/4112-0-0x00007FF80F383000-0x00007FF80F385000-memory.dmp

Filesize
8KB

Download
memory/4112-65-0x00007FF80F380000-0x00007FF80FE41000-memory.dmp

Filesize
10.8MB

Download
memory/4112-57-0x00007FF80F380000-0x00007FF80FE41000-memory.dmp

Filesize
10.8MB

Download
memory/4112-53-0x00007FF80F383000-0x00007FF80F385000-memory.dmp

Filesize
8KB

Download
memory/4156-8-0x0000027F62D80000-0x0000027F62DA2000-memory.dmp

Filesize
136KB

Download
memory/4156-18-0x00007FF80F380000-0x00007FF80FE41000-memory.dmp

Filesize
10.8MB

Download
memory/4156-15-0x00007FF80F380000-0x00007FF80FE41000-memory.dmp

Filesize
10.8MB

Download
memory/4156-14-0x00007FF80F380000-0x00007FF80FE41000-memory.dmp

Filesize
10.8MB

Download
memory/4156-13-0x00007FF80F380000-0x00007FF80FE41000-memory.dmp

Filesize
10.8MB

Download