xworm | b6a0c0000264b84cffcf9fd20e7a6321a6ca97be8babf2092805fbb5ae577809

Analysis

max time kernel
147s
max time network
156s
platform
windows10-1703_x64
resource
win10-20240404-en
resource tags

arch:x64arch:x86image:win10-20240404-enlocale:en-usos:windows10-1703-x64system
submitted
06-07-2024 23:05

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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
behavioral2/memory/3176-1-0x00000000004D0000-0x00000000004E2000-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
960	powershell.exe
4612	powershell.exe
4772	powershell.exe
4124	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-1-5-21-4106386276-4127174233-3637007343-1000\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 44 IoCs

Web Service

T1102

flow	ioc
29	pastebin.com
41	pastebin.com
18	pastebin.com
35	pastebin.com
3	pastebin.com
11	pastebin.com
12	pastebin.com
30	pastebin.com
34	pastebin.com
38	pastebin.com
52	pastebin.com
6	pastebin.com
7	pastebin.com
26	pastebin.com
19	pastebin.com
25	pastebin.com
36	pastebin.com
42	pastebin.com
48	pastebin.com
2	pastebin.com
13	pastebin.com
17	pastebin.com
37	pastebin.com
49	pastebin.com
15	pastebin.com
31	pastebin.com
33	pastebin.com
40	pastebin.com
10	pastebin.com
16	pastebin.com
20	pastebin.com
22	pastebin.com
28	pastebin.com
39	pastebin.com
54	pastebin.com
8	pastebin.com
14	pastebin.com
21	pastebin.com
32	pastebin.com
50	pastebin.com
53	pastebin.com
5	pastebin.com
9	pastebin.com
27	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
960	powershell.exe
960	powershell.exe
960	powershell.exe
4612	powershell.exe
4612	powershell.exe
4612	powershell.exe
4772	powershell.exe
4772	powershell.exe
4772	powershell.exe
4124	powershell.exe
4124	powershell.exe
4124	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	3176	injector.exe
Token: SeDebugPrivilege	960	powershell.exe
Token: SeIncreaseQuotaPrivilege	960	powershell.exe
Token: SeSecurityPrivilege	960	powershell.exe
Token: SeTakeOwnershipPrivilege	960	powershell.exe
Token: SeLoadDriverPrivilege	960	powershell.exe
Token: SeSystemProfilePrivilege	960	powershell.exe
Token: SeSystemtimePrivilege	960	powershell.exe
Token: SeProfSingleProcessPrivilege	960	powershell.exe
Token: SeIncBasePriorityPrivilege	960	powershell.exe
Token: SeCreatePagefilePrivilege	960	powershell.exe
Token: SeBackupPrivilege	960	powershell.exe
Token: SeRestorePrivilege	960	powershell.exe
Token: SeShutdownPrivilege	960	powershell.exe
Token: SeDebugPrivilege	960	powershell.exe
Token: SeSystemEnvironmentPrivilege	960	powershell.exe
Token: SeRemoteShutdownPrivilege	960	powershell.exe
Token: SeUndockPrivilege	960	powershell.exe
Token: SeManageVolumePrivilege	960	powershell.exe
Token: 33	960	powershell.exe
Token: 34	960	powershell.exe
Token: 35	960	powershell.exe
Token: 36	960	powershell.exe
Token: SeDebugPrivilege	4612	powershell.exe
Token: SeIncreaseQuotaPrivilege	4612	powershell.exe
Token: SeSecurityPrivilege	4612	powershell.exe
Token: SeTakeOwnershipPrivilege	4612	powershell.exe
Token: SeLoadDriverPrivilege	4612	powershell.exe
Token: SeSystemProfilePrivilege	4612	powershell.exe
Token: SeSystemtimePrivilege	4612	powershell.exe
Token: SeProfSingleProcessPrivilege	4612	powershell.exe
Token: SeIncBasePriorityPrivilege	4612	powershell.exe
Token: SeCreatePagefilePrivilege	4612	powershell.exe
Token: SeBackupPrivilege	4612	powershell.exe
Token: SeRestorePrivilege	4612	powershell.exe
Token: SeShutdownPrivilege	4612	powershell.exe
Token: SeDebugPrivilege	4612	powershell.exe
Token: SeSystemEnvironmentPrivilege	4612	powershell.exe
Token: SeRemoteShutdownPrivilege	4612	powershell.exe
Token: SeUndockPrivilege	4612	powershell.exe
Token: SeManageVolumePrivilege	4612	powershell.exe
Token: 33	4612	powershell.exe
Token: 34	4612	powershell.exe
Token: 35	4612	powershell.exe
Token: 36	4612	powershell.exe
Token: SeDebugPrivilege	4772	powershell.exe
Token: SeIncreaseQuotaPrivilege	4772	powershell.exe
Token: SeSecurityPrivilege	4772	powershell.exe
Token: SeTakeOwnershipPrivilege	4772	powershell.exe
Token: SeLoadDriverPrivilege	4772	powershell.exe
Token: SeSystemProfilePrivilege	4772	powershell.exe
Token: SeSystemtimePrivilege	4772	powershell.exe
Token: SeProfSingleProcessPrivilege	4772	powershell.exe
Token: SeIncBasePriorityPrivilege	4772	powershell.exe
Token: SeCreatePagefilePrivilege	4772	powershell.exe
Token: SeBackupPrivilege	4772	powershell.exe
Token: SeRestorePrivilege	4772	powershell.exe
Token: SeShutdownPrivilege	4772	powershell.exe
Token: SeDebugPrivilege	4772	powershell.exe
Token: SeSystemEnvironmentPrivilege	4772	powershell.exe
Token: SeRemoteShutdownPrivilege	4772	powershell.exe
Token: SeUndockPrivilege	4772	powershell.exe
Token: SeManageVolumePrivilege	4772	powershell.exe
Token: 33	4772	powershell.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 3176 wrote to memory of 960	3176	injector.exe	74
PID 3176 wrote to memory of 960	3176	injector.exe	74
PID 3176 wrote to memory of 4612	3176	injector.exe	77
PID 3176 wrote to memory of 4612	3176	injector.exe	77
PID 3176 wrote to memory of 4772	3176	injector.exe	79
PID 3176 wrote to memory of 4772	3176	injector.exe	79
PID 3176 wrote to memory of 4124	3176	injector.exe	81
PID 3176 wrote to memory of 4124	3176	injector.exe	81

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: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\injector.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:960
- 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:4612
- 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:4772
- 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:4124

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
e78b824398c937548e20629471a34f2c

SHA1
9fb3bac9c45f8ead7b112045cdf6bcfe173ec254

SHA256
dd3a782f1f5d7f9df275432644ec9ee8cec960f1ddf68afed50739bf114e6b9b

SHA512
96cbae0fad5aa2e949caae5b970659fa419a275207654ffb29fa4b6323ca7d8b4626d38307e11e9b806a1a9290f30476169d7b912d8c7a09bc6dc2829428a94c

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

Filesize
1KB

MD5
8a9e9b01f8ebcd12bdb11aed0e0fc32d

SHA1
2a9961b20dd1bf90a7f666f799395f8441530992

SHA256
37c24a6fc3df8d40eec370e7919da51210f57bf3dc098aa5d7e7b915c126208b

SHA512
3b4dbea2f6e52d4147364259a538922749937194322e34f93b0ffc94d415043b7e2a805b578fbd6bb96ebb19e0b4cbb5e74b89bc22b4aa1d64206b926cd47ec9

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

Filesize
1KB

MD5
e7cb5d6ce7b008273ff00c9c975a3afd

SHA1
1c62f14fd2f1414fe4c1369c3f1cec520cc1fa77

SHA256
034204483f1f833f4707c6d5d1e8100e810db0d3733ea4a04a41ba79ecf999a4

SHA512
75010c9f9779c5c4223d5d64653936ef86e1524fc611fefad6ea0e3884d8565505a546cbd304340540d2f5699ba7c144c8cb7eb987327d2d128a4ce9d5efc4ac

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_yxzc0sep.rrx.ps1

Filesize
1B

MD5
c4ca4238a0b923820dcc509a6f75849b

SHA1
356a192b7913b04c54574d18c28d46e6395428ab

SHA256
6b86b273ff34fce19d6b804eff5a3f5747ada4eaa22f1d49c01e52ddb7875b4b

SHA512
4dff4ea340f0a823f15d3f4f01ab62eae0e5da579ccb851f8db9dfe84c58b2b37b89903a740e1ee172da793a6e79d560e5f7f9bd058a12a280433ed6fa46510a

Download Submit
memory/960-10-0x00007FFFABA40000-0x00007FFFAC42C000-memory.dmp

Filesize
9.9MB

Download
memory/960-21-0x00007FFFABA40000-0x00007FFFAC42C000-memory.dmp

Filesize
9.9MB

Download
memory/960-24-0x00007FFFABA40000-0x00007FFFAC42C000-memory.dmp

Filesize
9.9MB

Download
memory/960-25-0x00007FFFABA40000-0x00007FFFAC42C000-memory.dmp

Filesize
9.9MB

Download
memory/960-51-0x00007FFFABA40000-0x00007FFFAC42C000-memory.dmp

Filesize
9.9MB

Download
memory/960-9-0x000002BFD7510000-0x000002BFD7586000-memory.dmp

Filesize
472KB

Download
memory/960-6-0x000002BFD73E0000-0x000002BFD7402000-memory.dmp

Filesize
136KB

Download
memory/3176-0-0x00007FFFABA43000-0x00007FFFABA44000-memory.dmp

Filesize
4KB

Download
memory/3176-1-0x00000000004D0000-0x00000000004E2000-memory.dmp

Filesize
72KB

Download
memory/3176-186-0x00007FFFABA40000-0x00007FFFAC42C000-memory.dmp

Filesize
9.9MB

Download
memory/3176-187-0x00007FFFABA40000-0x00007FFFAC42C000-memory.dmp

Filesize
9.9MB

Download