xworm | 3c2bfb840a89298362078051b0b0090acb291298cfa3189572ecdc954baaed0f

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

C2

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
behavioral2/memory/2804-1-0x0000000000490000-0x00000000004A6000-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
3612	powershell.exe
2656	powershell.exe
1176	powershell.exe
4392	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-1-5-21-3442511616-637977696-3186306149-1000\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-1-5-21-3442511616-637977696-3186306149-1000\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
14	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
3640	timeout.exe

Suspicious behavior: EnumeratesProcesses 9 IoCs

pid	Process
3612	powershell.exe
3612	powershell.exe
2656	powershell.exe
2656	powershell.exe
1176	powershell.exe
1176	powershell.exe
4392	powershell.exe
4392	powershell.exe
2804	SamsungCommisionExternal.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeDebugPrivilege	2804	SamsungCommisionExternal.exe
Token: SeDebugPrivilege	3612	powershell.exe
Token: SeDebugPrivilege	2656	powershell.exe
Token: SeDebugPrivilege	1176	powershell.exe
Token: SeDebugPrivilege	4392	powershell.exe
Token: SeDebugPrivilege	2804	SamsungCommisionExternal.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2804	SamsungCommisionExternal.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2804 wrote to memory of 3612	2804	SamsungCommisionExternal.exe	83
PID 2804 wrote to memory of 3612	2804	SamsungCommisionExternal.exe	83
PID 2804 wrote to memory of 2656	2804	SamsungCommisionExternal.exe	85
PID 2804 wrote to memory of 2656	2804	SamsungCommisionExternal.exe	85
PID 2804 wrote to memory of 1176	2804	SamsungCommisionExternal.exe	89
PID 2804 wrote to memory of 1176	2804	SamsungCommisionExternal.exe	89
PID 2804 wrote to memory of 4392	2804	SamsungCommisionExternal.exe	91
PID 2804 wrote to memory of 4392	2804	SamsungCommisionExternal.exe	91
PID 2804 wrote to memory of 2604	2804	SamsungCommisionExternal.exe	99
PID 2804 wrote to memory of 2604	2804	SamsungCommisionExternal.exe	99
PID 2604 wrote to memory of 3640	2604	cmd.exe	101
PID 2604 wrote to memory of 3640	2604	cmd.exe	101

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:2804
- 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:3612
- 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:2656
- 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:1176
- 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:4392
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp48CC.tmp.bat""
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2604
- - C:\Windows\system32\timeout.exe
    timeout 3
    3⤵
    - Delays execution with timeout.exe
    PID:3640

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

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
e243a38635ff9a06c87c2a61a2200656

SHA1
ecd95ed5bf1a9fbe96a8448fc2814a0210fa2afc

SHA256
af5782703f3f2d5a29fb313dae6680a64134db26064d4a321a3f23b75f6ca00f

SHA512
4418957a1b10eee44cf270c81816ae707352411c4f5ac14b6b61ab537c91480e24e0a0a2c276a6291081b4984c123cf673a45dcedb0ceeef682054ba0fc19cb4

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

Filesize
944B

MD5
0aa63dbb46d451e47a7a682c64af776d

SHA1
3b0026f2dae8e9c491ccaa40133755779de35aaa

SHA256
9158038718d41172c22a3c1a15852405e3e1c8e2c44fa066328eb1520e5d977b

SHA512
4d2564850c2ab1bc71089412f19147df4a1cd3075aa2039aa894271b333cd9c510b7ba4d70889f24d45d8b366d8b5167abdcf24314e4753420337c7d34e7c43f

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

Filesize
944B

MD5
15dde0683cd1ca19785d7262f554ba93

SHA1
d039c577e438546d10ac64837b05da480d06bf69

SHA256
d6fa39eab7ee36f44dc3f9f2839d098433db95c1eba924e4bcf4e5c0d268d961

SHA512
57c0e1b87bc1c136f0d39f3ce64bb8f8274a0491e4ca6e45e5c7f9070aa9d9370c6f590ce37cd600b252df2638d870205249a514c43245ca7ed49017024a4672

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_tnqh5y14.xsc.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp48CC.tmp.bat

Filesize
186B

MD5
e853addec43737eca5fdc74033ae16cb

SHA1
0a8adb87a4d65888b2665b539b6e99aa7ca384dd

SHA256
6098005d68a138f8e944525d9ba6a1e9564082120c100eb3548b6e466d58eb0b

SHA512
dd7277abdaed08126492496c14d1ae0e158ab9b0524e59ce7b42fc41b52149f1f797bfaef7f5cdb98efd4200e3b05886a64d2920b3e308585888b7ba53423991

Download Submit
memory/2804-66-0x00007FF9A05F0000-0x00007FF9A10B1000-memory.dmp

Filesize
10.8MB

Download
memory/2804-58-0x000000001D200000-0x000000001D20C000-memory.dmp

Filesize
48KB

Download
memory/2804-57-0x00007FF9A05F0000-0x00007FF9A10B1000-memory.dmp

Filesize
10.8MB

Download
memory/2804-0-0x00007FF9A05F3000-0x00007FF9A05F5000-memory.dmp

Filesize
8KB

Download
memory/2804-56-0x00007FF9A05F3000-0x00007FF9A05F5000-memory.dmp

Filesize
8KB

Download
memory/2804-2-0x00007FF9A05F0000-0x00007FF9A10B1000-memory.dmp

Filesize
10.8MB

Download
memory/2804-1-0x0000000000490000-0x00000000004A6000-memory.dmp

Filesize
88KB

Download
memory/3612-5-0x00007FF9A05F0000-0x00007FF9A10B1000-memory.dmp

Filesize
10.8MB

Download
memory/3612-18-0x00007FF9A05F0000-0x00007FF9A10B1000-memory.dmp

Filesize
10.8MB

Download
memory/3612-6-0x00007FF9A05F0000-0x00007FF9A10B1000-memory.dmp

Filesize
10.8MB

Download
memory/3612-4-0x0000027C6E180000-0x0000027C6E1A2000-memory.dmp

Filesize
136KB

Download
memory/3612-3-0x00007FF9A05F0000-0x00007FF9A10B1000-memory.dmp

Filesize
10.8MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads