xworm | 8a12e43e50b652c7b7c34210192fa128ed57bb18781c2b97fa650e4a00c6c151

Analysis

max time kernel
135s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
09/06/2024, 14:47

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General

Target
XClient.exe
Size 70KB
Sample240609-r57mpscc92
SHA256 8a12e43e50b652c7b7c34210192fa128ed57bb18781c2b97fa650e4a00c6c151
MD5 989689a7a0927e06da4a8ac0f84732c0
SHA1 4a8bf7162c816621f9979457aa10fd8d2fff754e
SHA512 8b38d0facdb92c280e965af8e2a4dbe8c227e7f5db14d51579613afb89840c53d806d25ad4d43f40bfa9326085a3e2e3dd9b134b9495190ea804d0fbaceb3621
SSDEEP 1536:DWjH031l6P7ANeX/pMu+bPVz5UOd674OCSzNS/SD:DMR8oRMu+bPXUOTOCSzGW
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

xworm execution persistence rat trojan

Malware Config

Extracted

Family

xworm

dance-acres.gl.at.ply.gg:60153

Attributes

Install_directory
%LocalAppData%
install_file
svhost.exe

Signatures

Detect Xworm Payload 1 IoCs

resource	yara_rule
behavioral2/memory/3372-1-0x00000000004A0000-0x00000000004B8000-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
1808	powershell.exe
1764	powershell.exe
1936	powershell.exe
4580	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-1-5-21-3808065738-1666277613-1125846146-1000\Control Panel\International\Geo\Nation	XClient.exe

Drops startup file 2 IoCs

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

Executes dropped EXE 1 IoCs

pid	Process
3580	vowqfl.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-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\svhost = "C:\\Users\\Admin\\AppData\\Local\\svhost.exe"	XClient.exe

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 11 IoCs

pid	Process
1808	powershell.exe
1808	powershell.exe
1764	powershell.exe
1764	powershell.exe
1936	powershell.exe
1936	powershell.exe
4580	powershell.exe
4580	powershell.exe
4580	powershell.exe
3372	XClient.exe
3372	XClient.exe

Suspicious use of AdjustPrivilegeToken 8 IoCs

description	pid	Process
Token: SeDebugPrivilege	3372	XClient.exe
Token: SeDebugPrivilege	1808	powershell.exe
Token: SeDebugPrivilege	1764	powershell.exe
Token: SeDebugPrivilege	1936	powershell.exe
Token: SeDebugPrivilege	4580	powershell.exe
Token: SeDebugPrivilege	3372	XClient.exe
Token: 33	2620	AUDIODG.EXE
Token: SeIncBasePriorityPrivilege	2620	AUDIODG.EXE

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3372	XClient.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 3372 wrote to memory of 1808	3372	XClient.exe	92
PID 3372 wrote to memory of 1808	3372	XClient.exe	92
PID 3372 wrote to memory of 1764	3372	XClient.exe	94
PID 3372 wrote to memory of 1764	3372	XClient.exe	94
PID 3372 wrote to memory of 1936	3372	XClient.exe	96
PID 3372 wrote to memory of 1936	3372	XClient.exe	96
PID 3372 wrote to memory of 4580	3372	XClient.exe	100
PID 3372 wrote to memory of 4580	3372	XClient.exe	100
PID 3372 wrote to memory of 3580	3372	XClient.exe	109
PID 3372 wrote to memory of 3580	3372	XClient.exe	109

C:\Users\Admin\AppData\Local\Temp\XClient.exe
"C:\Users\Admin\AppData\Local\Temp\XClient.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:3372
- 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\XClient.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1808
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'XClient.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1764
- 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\svhost.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1936
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'svhost.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4580
- C:\Users\Admin\AppData\Local\Temp\vowqfl.exe
  "C:\Users\Admin\AppData\Local\Temp\vowqfl.exe"
  2⤵
  - Executes dropped EXE
  PID:3580

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=3940 --field-trial-handle=2284,i,15722001240173834669,15048020084704567542,262144 --variations-seed-version /prefetch:8
1⤵
PID:1128

C:\Windows\system32\AUDIODG.EXE
C:\Windows\system32\AUDIODG.EXE 0x4e8 0x408
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2620

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

powershell.exe.log

Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log
Size 2KB
SHA256 84739c608a73509419748e4e20e6cc4e1846056c3fe1929a8300d5a1a488202f
MD5 d85ba6ff808d9e5444a4b369f5bc2730
SHA1 31aa9d96590fff6981b315e0b391b575e4c0804a
SHA512 8c414eb55b45212af385accc16d9d562adba2123583ce70d22b91161fe878683845512a78f04dedd4ea98ed9b174dbfa98cf696370598ad8e6fbd1e714f1f249
MD5 SHA1 SHA512

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StartupProfileData-NonInteractive

Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
Size 944B
SHA256 95d79fd575bbd21540e378fcbc1cd00d16f51af62ce15bae7080bb72c24e2010
MD5 62623d22bd9e037191765d5083ce16a3
SHA1 4a07da6872672f715a4780513d95ed8ddeefd259
SHA512 9a448b7a0d867466c2ea04ab84d2a9485d5fd20ab53b2b854f491831ee3f1d781b94d2635f7b0b35cb9f2d373cd52c67570879a56a42ed66bc9db06962ed4992
MD5 SHA1 SHA512

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StartupProfileData-NonInteractive

Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
Size 944B
SHA256 c88e4bbb64f7fa31429ebe82c1cf07785c44486f37576f783a26ac856e02a4eb
MD5 9bc110200117a3752313ca2acaf8a9e1
SHA1 fda6b7da2e7b0175b391475ca78d1b4cf2147cd3
SHA512 1f1af32aa18a8cbfcc65b0d4fb7e6ca2705f125eaa85789e981ee68b90c64522e954825abf460d4b4f97567715dfae8d9b0a25a4d54d10bc4c257c472f2e80fb
MD5 SHA1 SHA512

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StartupProfileData-NonInteractive

Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
Size 944B
SHA256 45dbf3cf4ab714e4e344e081e4c08a4930a6815f80ce1f1650a2d434a2e1c63d
MD5 eb1d189bf4c8d991692f8e911ddb0e22
SHA1 edf610592a788c266e63cff9b870005c9ac283a6
SHA512 d7150e51e5cb8faa0709c84614c2e29942308f198ebe2c4baba93cef0dc9edbeca8679aafe1b703d1cade30c4b47cafb7cdf3ecc59254293ae305e5f15be662a
MD5 SHA1 SHA512

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__PSScriptPolicyTest_bsllsvti.hkd.ps1

Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_bsllsvti.hkd.ps1
Size 60B
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
MD5 SHA1 SHA512

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vowqfl.exe

Path C:\Users\Admin\AppData\Local\Temp\vowqfl.exe
Size 9.1MB
SHA256 356d49abb58b6a65f341d438ead84bdd36151bd19545a5aac3e8e914e8c80f12
MD5 dc660e6a531fe34bb0693133f8643495
SHA1 bf5525f87d4c6e8b4f7901b970ffaac01b86e439
SHA512 8f249bb15798ec311543dff18edac26765e834c7931f0dd543076128270271f3d82da9052ef71bae939263fedc3fcb74405bcd196aa48a42daf6ed8c87cc0605
SSDEEP 196608:2+pelNMXq98NJb96V2YkR5IWBPOBJ4KaNzP2aX1HfNYRwBNk:bpeZ98bB6YYkR5DFCJwNzP2O5mRw/k
MD5 SHA1 SHA512 SSDEEP

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vowqfl.exe

Path C:\Users\Admin\AppData\Local\Temp\vowqfl.exe
Size 7.6MB
SHA256 b1cd5ea84ec864fc25a13df12bc2bf3bd92ac826583c0710f3201c81431f7794
MD5 c10801b6ce4f9f3f0282612ce562bc85
SHA1 cf8da8654dc71c7074ef552ddc1db82a5f477b3e
SHA512 abf640fdf276b92d6594c194a7f2e207b080dfcdcd7e08a5c451fc6a6a3f2b0b3e15791097c6cafd44897312d7e4f6149809009e0d294bec5d5766fcd768c186
SSDEEP 196608:2+pelNMXq98NJb96V2YkR5IWBPOBJ4KaNzP2aX1HI:bpeZ98bB6YYkR5DFCJwNzP2O5I
MD5 SHA1 SHA512 SSDEEP

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vowqfl.exe

Path C:\Users\Admin\AppData\Local\Temp\vowqfl.exe
Size 10.0MB
SHA256 cb6384b855d46fe5678bb3d5d1fc77c800884f8345cb490e1aa71646e872d3ae
MD5 be9b8e7c29977c01f3122f1e5082f45d
SHA1 c53a253ac33ab33e94f3ad5e5200645b6391b779
SHA512 91514128a7a488581372881a556b081ad920086fd43da84188033f0bd48f294199192b753ec691c2cb79072420b346f767d9cfb4ef2d119ca1e345d65df8dc34
SSDEEP 196608:2+pelNMXq98NJb96V2YkR5IWBPOBJ4KaNzP2aX1HfNYRwBNo8YhrqE:bpeZ98bB6YYkR5DFCJwNzP2O5mRw/o8a
MD5 SHA1 SHA512 SSDEEP

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memory/1808-13-0x00007FF984460000-0x00007FF984F21000-memory.dmp

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memory/1808-11-0x0000022C56420000-0x0000022C56442000-memory.dmp

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memory/1808-16-0x00007FF984460000-0x00007FF984F21000-memory.dmp

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memory/1808-15-0x00007FF984460000-0x00007FF984F21000-memory.dmp

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memory/1808-14-0x00007FF984460000-0x00007FF984F21000-memory.dmp

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memory/1808-19-0x00007FF984460000-0x00007FF984F21000-memory.dmp

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memory/1808-12-0x00007FF984460000-0x00007FF984F21000-memory.dmp

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memory/3372-59-0x00007FF984463000-0x00007FF984465000-memory.dmp

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memory/3372-60-0x00007FF984460000-0x00007FF984F21000-memory.dmp

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memory/3372-58-0x00007FF984460000-0x00007FF984F21000-memory.dmp

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memory/3372-0-0x00007FF984463000-0x00007FF984465000-memory.dmp

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memory/3372-1-0x00000000004A0000-0x00000000004B8000-memory.dmp

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memory/3372-74-0x000000001AA70000-0x000000001AA7C000-memory.dmp

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memory/3580-73-0x000001B168320000-0x000001B168D1C000-memory.dmp

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