xworm | b6a0c0000264b84cffcf9fd20e7a6321a6ca97be8babf2092805fbb5ae577809

Analysis

max time kernel
134s
max time network
151s
platform
windows10-1703_x64
resource
win10-20240404-en
resource tags

arch:x64arch:x86image:win10-20240404-enlocale:en-usos:windows10-1703-x64system
submitted
05/07/2024, 13:46

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General

Target

injector.exe
Size

49KB
MD5

37fbd83271e9f0a2dbe4372ec015c23f
SHA1

7deaca82f648bc67b5cc86e20696fff3a6a957a9
SHA256

b6a0c0000264b84cffcf9fd20e7a6321a6ca97be8babf2092805fbb5ae577809
SHA512

a3eff87bf8f4d8265706aa366060b661628a8621441762078356e029ea23f6369bf3d807e33b4ca8ff0adb84f8ab17cd46fd7a5387237c2be81ba57d83c7d300
SSDEEP

768:ZWO7VMyjFxpyKlSFyx9DKx6YOjhNOKEkzbwonH8wSpO1bNX:ggVMy/sBFU9DU6YOjq1EwoH865F

Score

10^/10

xworm execution persistence rat trojan

Malware Config

Extracted

Family

xworm

Version

5.0

https://pastebin.com/raw/r8P3Ngmc:324

Mutex

LrtSM6IVyhGy1fuw

Attributes

Install_directory
%AppData%
install_file
injector.exe
pastebin_url
https://pastebin.com/raw/r8P3Ngmc

aes.plain

Signatures

Detect Xworm Payload 1 IoCs

resource	yara_rule
behavioral1/memory/4196-0-0x0000000000230000-0x0000000000242000-memory.dmp	family_xworm

Xworm
Xworm is a remote access trojan written in C#.
trojan rat 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
3912	powershell.exe
4696	powershell.exe
1428	powershell.exe
344	powershell.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\injector.lnk	injector.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\injector.lnk	injector.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-1-5-21-3968772205-1713802336-1776639840-1000\Software\Microsoft\Windows\CurrentVersion\Run\injector = "C:\\Users\\Admin\\AppData\\Roaming\\injector.exe"	injector.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs

Web Service

T1102

flow	ioc
1	pastebin.com
2	pastebin.com

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 12 IoCs

pid	Process
344	powershell.exe
344	powershell.exe
344	powershell.exe
3912	powershell.exe
3912	powershell.exe
3912	powershell.exe
4696	powershell.exe
4696	powershell.exe
4696	powershell.exe
1428	powershell.exe
1428	powershell.exe
1428	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	4196	injector.exe
Token: SeDebugPrivilege	344	powershell.exe
Token: SeIncreaseQuotaPrivilege	344	powershell.exe
Token: SeSecurityPrivilege	344	powershell.exe
Token: SeTakeOwnershipPrivilege	344	powershell.exe
Token: SeLoadDriverPrivilege	344	powershell.exe
Token: SeSystemProfilePrivilege	344	powershell.exe
Token: SeSystemtimePrivilege	344	powershell.exe
Token: SeProfSingleProcessPrivilege	344	powershell.exe
Token: SeIncBasePriorityPrivilege	344	powershell.exe
Token: SeCreatePagefilePrivilege	344	powershell.exe
Token: SeBackupPrivilege	344	powershell.exe
Token: SeRestorePrivilege	344	powershell.exe
Token: SeShutdownPrivilege	344	powershell.exe
Token: SeDebugPrivilege	344	powershell.exe
Token: SeSystemEnvironmentPrivilege	344	powershell.exe
Token: SeRemoteShutdownPrivilege	344	powershell.exe
Token: SeUndockPrivilege	344	powershell.exe
Token: SeManageVolumePrivilege	344	powershell.exe
Token: 33	344	powershell.exe
Token: 34	344	powershell.exe
Token: 35	344	powershell.exe
Token: 36	344	powershell.exe
Token: SeDebugPrivilege	3912	powershell.exe
Token: SeIncreaseQuotaPrivilege	3912	powershell.exe
Token: SeSecurityPrivilege	3912	powershell.exe
Token: SeTakeOwnershipPrivilege	3912	powershell.exe
Token: SeLoadDriverPrivilege	3912	powershell.exe
Token: SeSystemProfilePrivilege	3912	powershell.exe
Token: SeSystemtimePrivilege	3912	powershell.exe
Token: SeProfSingleProcessPrivilege	3912	powershell.exe
Token: SeIncBasePriorityPrivilege	3912	powershell.exe
Token: SeCreatePagefilePrivilege	3912	powershell.exe
Token: SeBackupPrivilege	3912	powershell.exe
Token: SeRestorePrivilege	3912	powershell.exe
Token: SeShutdownPrivilege	3912	powershell.exe
Token: SeDebugPrivilege	3912	powershell.exe
Token: SeSystemEnvironmentPrivilege	3912	powershell.exe
Token: SeRemoteShutdownPrivilege	3912	powershell.exe
Token: SeUndockPrivilege	3912	powershell.exe
Token: SeManageVolumePrivilege	3912	powershell.exe
Token: 33	3912	powershell.exe
Token: 34	3912	powershell.exe
Token: 35	3912	powershell.exe
Token: 36	3912	powershell.exe
Token: SeDebugPrivilege	4696	powershell.exe
Token: SeIncreaseQuotaPrivilege	4696	powershell.exe
Token: SeSecurityPrivilege	4696	powershell.exe
Token: SeTakeOwnershipPrivilege	4696	powershell.exe
Token: SeLoadDriverPrivilege	4696	powershell.exe
Token: SeSystemProfilePrivilege	4696	powershell.exe
Token: SeSystemtimePrivilege	4696	powershell.exe
Token: SeProfSingleProcessPrivilege	4696	powershell.exe
Token: SeIncBasePriorityPrivilege	4696	powershell.exe
Token: SeCreatePagefilePrivilege	4696	powershell.exe
Token: SeBackupPrivilege	4696	powershell.exe
Token: SeRestorePrivilege	4696	powershell.exe
Token: SeShutdownPrivilege	4696	powershell.exe
Token: SeDebugPrivilege	4696	powershell.exe
Token: SeSystemEnvironmentPrivilege	4696	powershell.exe
Token: SeRemoteShutdownPrivilege	4696	powershell.exe
Token: SeUndockPrivilege	4696	powershell.exe
Token: SeManageVolumePrivilege	4696	powershell.exe
Token: 33	4696	powershell.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 4196 wrote to memory of 344	4196	injector.exe	72
PID 4196 wrote to memory of 344	4196	injector.exe	72
PID 4196 wrote to memory of 3912	4196	injector.exe	75
PID 4196 wrote to memory of 3912	4196	injector.exe	75
PID 4196 wrote to memory of 4696	4196	injector.exe	77
PID 4196 wrote to memory of 4696	4196	injector.exe	77
PID 4196 wrote to memory of 1428	4196	injector.exe	79
PID 4196 wrote to memory of 1428	4196	injector.exe	79

C:\Users\Admin\AppData\Local\Temp\injector.exe
"C:\Users\Admin\AppData\Local\Temp\injector.exe"
1⤵
- Drops startup file
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4196
- 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\injector.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:344
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'injector.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3912
- 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\injector.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4696
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'injector.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  PID:1428

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

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Web Service

T1102

Exfiltration

Impact

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Downloads

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

Filesize
3KB

MD5
ad5cd538ca58cb28ede39c108acb5785

SHA1
1ae910026f3dbe90ed025e9e96ead2b5399be877

SHA256
c9e6cb04d6c893458d5a7e12eb575cf97c3172f5e312b1f63a667cbbc5f0c033

SHA512
c066c5d9b276a68fa636647bb29aea05bfa2292217bc77f5324d9c1d93117772ee8277e1f7cff91ec8d6b7c05ca078f929cecfdbb09582522a9067f54740af13

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

Filesize
1KB

MD5
bd9bfe59c84af0dced17f67e984a1430

SHA1
503d51c8788e0684f8165796d3203b6870b379ea

SHA256
9d6c7951473c1161a9631f889a99f4e57d2a8624e3771f5acb8a71495d37b297

SHA512
31b2dc549282eda83b764f933197ec74b800acd329fdfd8c37823ccb44cb362ace0942f0a26a511fd575cda6f7b5d2778f5c9fcd4ad001b1b57aba707dcf748c

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

Filesize
1KB

MD5
ebb64532c2e2099c56c56ee661fa60a3

SHA1
08881cbe36a96e85a19a337294fee7f7b76de2bb

SHA256
0dc435bff0b223bdac3d0cb717d5addc2cd6c043f2e4b0bc049f28abd6a3ecca

SHA512
e2349ea621b87327841909790f62f03b100e1f8d5c88bf8fff10cbe0690327c8229ee2978e7e71df21135f05ccd8245fa4fd56e168b350d2e887b39a844057d1

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

Filesize
1KB

MD5
3fe20f5f8dcd6e42a7d1116d8b283364

SHA1
28c0d5beb83f9b168fb3ea54e5b7c2c2e9f2197f

SHA256
653457bfd3826191c6ffc6ad2bb413ac265effec16b33b7d07d381880da1b497

SHA512
de33af9e4166ac2cb9674eba4e2a182375d17717114a7fc44828ddf920b26036a77f710f2785a7496e75532d54b5ec221b5822eafda4a80ec2d9e10360938968

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_qoncaisz.wh4.ps1

Filesize
1B

MD5
c4ca4238a0b923820dcc509a6f75849b

SHA1
356a192b7913b04c54574d18c28d46e6395428ab

SHA256
6b86b273ff34fce19d6b804eff5a3f5747ada4eaa22f1d49c01e52ddb7875b4b

SHA512
4dff4ea340f0a823f15d3f4f01ab62eae0e5da579ccb851f8db9dfe84c58b2b37b89903a740e1ee172da793a6e79d560e5f7f9bd058a12a280433ed6fa46510a

Download Submit
memory/344-10-0x00007FFF9ADA0000-0x00007FFF9B78C000-memory.dmp

Filesize
9.9MB

Download
memory/344-20-0x00007FFF9ADA0000-0x00007FFF9B78C000-memory.dmp

Filesize
9.9MB

Download
memory/344-19-0x00007FFF9ADA0000-0x00007FFF9B78C000-memory.dmp

Filesize
9.9MB

Download
memory/344-25-0x00007FFF9ADA0000-0x00007FFF9B78C000-memory.dmp

Filesize
9.9MB

Download
memory/344-48-0x00007FFF9ADA0000-0x00007FFF9B78C000-memory.dmp

Filesize
9.9MB

Download
memory/344-52-0x00007FFF9ADA0000-0x00007FFF9B78C000-memory.dmp

Filesize
9.9MB

Download
memory/344-9-0x0000024BF0330000-0x0000024BF03A6000-memory.dmp

Filesize
472KB

Download
memory/344-6-0x0000024BF0180000-0x0000024BF01A2000-memory.dmp

Filesize
136KB

Download
memory/4196-0-0x0000000000230000-0x0000000000242000-memory.dmp

Filesize
72KB

Download
memory/4196-1-0x00007FFF9ADA3000-0x00007FFF9ADA4000-memory.dmp

Filesize
4KB

Download
memory/4196-186-0x00007FFF9ADA0000-0x00007FFF9B78C000-memory.dmp

Filesize
9.9MB

Download
memory/4196-187-0x00007FFF9ADA0000-0x00007FFF9B78C000-memory.dmp

Filesize
9.9MB

Download