xworm | c346655d32844eda0a9ec3d3d9b16c1c27248bda424fc8b91804d26cd8986454

General

Target

c346655d32844eda0a9ec3d3d9b16c1c27248bda424fc8b91804d26cd8986454.exe
Size

77KB
MD5

a307d64f791cb555d029c214364162d8
SHA1

04f134fd1a0b71e0b4b745a97e9a08ed1ee45c74
SHA256

c346655d32844eda0a9ec3d3d9b16c1c27248bda424fc8b91804d26cd8986454
SHA512

d432bcf7874ea3f74ec7e4fc51b400f7c3492b06479fd12949b7cde698e513bbabd08afae8d0ffc2efbe3d7d0cb44e08c5b2bba3f116b9fd6120713e2cd5f96e
SSDEEP

1536:x5sFO8g/9VM5dQ+aomobhr3KXg6wzOB1SmOnU7Ua+G:x5sU9Vv4bbhr6SOB1S5nU7MG

Score

10^/10

xworm execution persistence rat trojan

Malware Config

Extracted

Family

xworm

C2

left-noon.gl.at.ply.gg:60705

Attributes

Install_directory
%AppData%
install_file
US11B.exe

Signatures

Detect Xworm Payload 4 IoCs

resource	yara_rule
behavioral1/memory/2508-1-0x0000000000CD0000-0x0000000000CEA000-memory.dmp	family_xworm
behavioral1/files/0x000e000000016df8-30.dat	family_xworm
behavioral1/memory/1716-35-0x0000000000320000-0x000000000033A000-memory.dmp	family_xworm
behavioral1/memory/2576-38-0x0000000000390000-0x00000000003AA000-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 3 IoCs

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

execution

PowerShell

T1059.001

pid	Process
2704	powershell.exe
2604	powershell.exe
2764	powershell.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\c346655d32844eda0a9ec3d3d9b16c1c27248bda424fc8b91804d26cd8986454.lnk	c346655d32844eda0a9ec3d3d9b16c1c27248bda424fc8b91804d26cd8986454.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\c346655d32844eda0a9ec3d3d9b16c1c27248bda424fc8b91804d26cd8986454.lnk	c346655d32844eda0a9ec3d3d9b16c1c27248bda424fc8b91804d26cd8986454.exe

Executes dropped EXE 2 IoCs

pid	Process
1716	c346655d32844eda0a9ec3d3d9b16c1c27248bda424fc8b91804d26cd8986454.exe
2576	c346655d32844eda0a9ec3d3d9b16c1c27248bda424fc8b91804d26cd8986454.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-1-5-21-3063565911-2056067323-3330884624-1000\Software\Microsoft\Windows\CurrentVersion\Run\c346655d32844eda0a9ec3d3d9b16c1c27248bda424fc8b91804d26cd8986454 = "C:\\Users\\Admin\\AppData\\Roaming\\c346655d32844eda0a9ec3d3d9b16c1c27248bda424fc8b91804d26cd8986454.exe"	c346655d32844eda0a9ec3d3d9b16c1c27248bda424fc8b91804d26cd8986454.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
4	ip-api.com

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

System Information Discovery
T1082

Modifies system certificate store 2 TTPs 2 IoCs

evasion spyware trojan

Install Root Certificate

T1553.004

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\ROOT\Certificates\CABD2A79A1076A31F21D253635CB039D4329A5E8	c346655d32844eda0a9ec3d3d9b16c1c27248bda424fc8b91804d26cd8986454.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\ROOT\Certificates\CABD2A79A1076A31F21D253635CB039D4329A5E8\Blob = 0400000001000000100000000cd2f9e0da1773e9ed864da5e370e74e14000000010000001400000079b459e67bb6e5e40173800888c81a58f6e99b6e030000000100000014000000cabd2a79a1076a31f21d253635cb039d4329a5e80f00000001000000200000003f0411ede9c4477057d57e57883b1f205b20cdc0f3263129b1ee0269a2678f631900000001000000100000002fe1f70bb05d7c92335bc5e05b984da620000000010000006f0500003082056b30820353a0030201020211008210cfb0d240e3594463e0bb63828b00300d06092a864886f70d01010b0500304f310b300906035504061302555331293027060355040a1320496e7465726e65742053656375726974792052657365617263682047726f7570311530130603550403130c4953524720526f6f74205831301e170d3135303630343131303433385a170d3335303630343131303433385a304f310b300906035504061302555331293027060355040a1320496e7465726e65742053656375726974792052657365617263682047726f7570311530130603550403130c4953524720526f6f7420583130820222300d06092a864886f70d01010105000382020f003082020a0282020100ade82473f41437f39b9e2b57281c87bedcb7df38908c6e3ce657a078f775c2a2fef56a6ef6004f28dbde68866c4493b6b163fd14126bbf1fd2ea319b217ed1333cba48f5dd79dfb3b8ff12f1219a4bc18a8671694a66666c8f7e3c70bfad292206f3e4c0e680aee24b8fb7997e94039fd347977c99482353e838ae4f0a6f832ed149578c8074b6da2fd0388d7b0370211b75f2303cfa8faeddda63abeb164fc28e114b7ecf0be8ffb5772ef4b27b4ae04c12250c708d0329a0e15324ec13d9ee19bf10b34a8c3f89a36151deac870794f46371ec2ee26f5b9881e1895c34796c76ef3b906279e6dba49a2f26c5d010e10eded9108e16fbb7f7a8f7c7e50207988f360895e7e237960d36759efb0e72b11d9bbc03f94905d881dd05b42ad641e9ac0176950a0fd8dfd5bd121f352f28176cd298c1a80964776e4737baceac595e689d7f72d689c50641293e593edd26f524c911a75aa34c401f46a199b5a73a516e863b9e7d72a712057859ed3e5178150b038f8dd02f05b23e7b4a1c4b730512fcc6eae050137c439374b3ca74e78e1f0108d030d45b7136b407bac130305c48b7823b98a67d608aa2a32982ccbabd83041ba2830341a1d605f11bc2b6f0a87c863b46a8482a88dc769a76bf1f6aa53d198feb38f364dec82b0d0a28fff7dbe21542d422d0275de179fe18e77088ad4ee6d98b3ac6dd27516effbc64f533434f0203010001a3423040300e0603551d0f0101ff040403020106300f0603551d130101ff040530030101ff301d0603551d0e0416041479b459e67bb6e5e40173800888c81a58f6e99b6e300d06092a864886f70d01010b05000382020100551f58a9bcb2a850d00cb1d81a6920272908ac61755c8a6ef882e5692fd5f6564bb9b8731059d321977ee74c71fbb2d260ad39a80bea17215685f1500e59ebcee059e9bac915ef869d8f8480f6e4e99190dc179b621b45f06695d27c6fc2ea3bef1fcfcbd6ae27f1a9b0c8aefd7d7e9afa2204ebffd97fea912b22b1170e8ff28a345b58d8fc01c954b9b826cc8a8833894c2d843c82dfee965705ba2cbbf7c4b7c74e3b82be31c822737392d1c280a43939103323824c3c9f86b255981dbe29868c229b9ee26b3b573a82704ddc09c789cb0a074d6ce85d8ec9efceabc7bbb52b4e45d64ad026cce572ca086aa595e315a1f7a4edc92c5fa5fbffac28022ebed77bbbe3717b9016d3075e46537c3707428cd3c4969cd599b52ae0951a8048ae4c3907cecc47a452952bbab8fbadd233537de51d4d6dd5a1b1c7426fe64027355ca328b7078de78d3390e7239ffb509c796c46d5b415b3966e7e9b0c963ab8522d3fd65be1fb08c284fe24a8a389daac6ae1182ab1a843615bd31fdc3b8d76f22de88d75df17336c3d53fb7bcb415fffdca2d06138e196b8ac5d8b37d775d533c09911ae9d41c1727584be0241425f67244894d19b27be073fb9b84f817451e17ab7ed9d23e2bee0d52804133c31039edd7a6c8fc60718c67fde478e3f289e0406cfa5543477bdec899be91743df5bdb5ffe8e1e57a2cd409d7e6222dade1827	c346655d32844eda0a9ec3d3d9b16c1c27248bda424fc8b91804d26cd8986454.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
1936	schtasks.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2704	powershell.exe
2604	powershell.exe
2764	powershell.exe
2508	c346655d32844eda0a9ec3d3d9b16c1c27248bda424fc8b91804d26cd8986454.exe

Suspicious use of AdjustPrivilegeToken 7 IoCs

description	pid	Process
Token: SeDebugPrivilege	2508	c346655d32844eda0a9ec3d3d9b16c1c27248bda424fc8b91804d26cd8986454.exe
Token: SeDebugPrivilege	2704	powershell.exe
Token: SeDebugPrivilege	2604	powershell.exe
Token: SeDebugPrivilege	2764	powershell.exe
Token: SeDebugPrivilege	2508	c346655d32844eda0a9ec3d3d9b16c1c27248bda424fc8b91804d26cd8986454.exe
Token: SeDebugPrivilege	1716	c346655d32844eda0a9ec3d3d9b16c1c27248bda424fc8b91804d26cd8986454.exe
Token: SeDebugPrivilege	2576	c346655d32844eda0a9ec3d3d9b16c1c27248bda424fc8b91804d26cd8986454.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2508	c346655d32844eda0a9ec3d3d9b16c1c27248bda424fc8b91804d26cd8986454.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 2508 wrote to memory of 2704	2508	c346655d32844eda0a9ec3d3d9b16c1c27248bda424fc8b91804d26cd8986454.exe	31
PID 2508 wrote to memory of 2704	2508	c346655d32844eda0a9ec3d3d9b16c1c27248bda424fc8b91804d26cd8986454.exe	31
PID 2508 wrote to memory of 2704	2508	c346655d32844eda0a9ec3d3d9b16c1c27248bda424fc8b91804d26cd8986454.exe	31
PID 2508 wrote to memory of 2604	2508	c346655d32844eda0a9ec3d3d9b16c1c27248bda424fc8b91804d26cd8986454.exe	33
PID 2508 wrote to memory of 2604	2508	c346655d32844eda0a9ec3d3d9b16c1c27248bda424fc8b91804d26cd8986454.exe	33
PID 2508 wrote to memory of 2604	2508	c346655d32844eda0a9ec3d3d9b16c1c27248bda424fc8b91804d26cd8986454.exe	33
PID 2508 wrote to memory of 2764	2508	c346655d32844eda0a9ec3d3d9b16c1c27248bda424fc8b91804d26cd8986454.exe	35
PID 2508 wrote to memory of 2764	2508	c346655d32844eda0a9ec3d3d9b16c1c27248bda424fc8b91804d26cd8986454.exe	35
PID 2508 wrote to memory of 2764	2508	c346655d32844eda0a9ec3d3d9b16c1c27248bda424fc8b91804d26cd8986454.exe	35
PID 2508 wrote to memory of 1936	2508	c346655d32844eda0a9ec3d3d9b16c1c27248bda424fc8b91804d26cd8986454.exe	38
PID 2508 wrote to memory of 1936	2508	c346655d32844eda0a9ec3d3d9b16c1c27248bda424fc8b91804d26cd8986454.exe	38
PID 2508 wrote to memory of 1936	2508	c346655d32844eda0a9ec3d3d9b16c1c27248bda424fc8b91804d26cd8986454.exe	38
PID 1956 wrote to memory of 1716	1956	taskeng.exe	41
PID 1956 wrote to memory of 1716	1956	taskeng.exe	41
PID 1956 wrote to memory of 1716	1956	taskeng.exe	41
PID 1956 wrote to memory of 2576	1956	taskeng.exe	42
PID 1956 wrote to memory of 2576	1956	taskeng.exe	42
PID 1956 wrote to memory of 2576	1956	taskeng.exe	42

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012

C:\Users\Admin\AppData\Local\Temp\c346655d32844eda0a9ec3d3d9b16c1c27248bda424fc8b91804d26cd8986454.exe
"C:\Users\Admin\AppData\Local\Temp\c346655d32844eda0a9ec3d3d9b16c1c27248bda424fc8b91804d26cd8986454.exe"
1⤵
- Drops startup file
- Adds Run key to start application
- Modifies system certificate store
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2508
- 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\c346655d32844eda0a9ec3d3d9b16c1c27248bda424fc8b91804d26cd8986454.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2704
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'c346655d32844eda0a9ec3d3d9b16c1c27248bda424fc8b91804d26cd8986454.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2604
- 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\c346655d32844eda0a9ec3d3d9b16c1c27248bda424fc8b91804d26cd8986454.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2764
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "c346655d32844eda0a9ec3d3d9b16c1c27248bda424fc8b91804d26cd8986454" /tr "C:\Users\Admin\AppData\Roaming\c346655d32844eda0a9ec3d3d9b16c1c27248bda424fc8b91804d26cd8986454.exe"
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:1936

C:\Windows\system32\taskeng.exe
taskeng.exe {35D295CC-1D01-475C-9A88-20BB19C34C41} S-1-5-21-3063565911-2056067323-3330884624-1000:KHBTHJFA\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:1956
- C:\Users\Admin\AppData\Roaming\c346655d32844eda0a9ec3d3d9b16c1c27248bda424fc8b91804d26cd8986454.exe
  C:\Users\Admin\AppData\Roaming\c346655d32844eda0a9ec3d3d9b16c1c27248bda424fc8b91804d26cd8986454.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:1716
- C:\Users\Admin\AppData\Roaming\c346655d32844eda0a9ec3d3d9b16c1c27248bda424fc8b91804d26cd8986454.exe
  C:\Users\Admin\AppData\Roaming\c346655d32844eda0a9ec3d3d9b16c1c27248bda424fc8b91804d26cd8986454.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:2576

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

Modify Registry

2

T1112

Subvert Trust Controls

1

T1553

Install Root Certificate

1

T1553.004

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\590aee7bdd69b59b.customDestinations-ms

Filesize
7KB

MD5
88a850627135b7461ac7e363326eabcb

SHA1
4bb810f843fbd27c4e382fdcdb3f1aec98e1e30e

SHA256
9e2437a0b1a1b6ad8493b6bb1c77b016ede21baeab1b7f619a237ff71f3fc5c4

SHA512
ba418d557d4298e7307e19c67bbe3bf51d1380ca33a8c3fef894d9b6a5cc00ae76be8d8edadaac322cd2acff465c825193764a86ce22893322708cfc59b24c44

Download Submit
C:\Users\Admin\AppData\Roaming\c346655d32844eda0a9ec3d3d9b16c1c27248bda424fc8b91804d26cd8986454.exe

Filesize
77KB

MD5
a307d64f791cb555d029c214364162d8

SHA1
04f134fd1a0b71e0b4b745a97e9a08ed1ee45c74

SHA256
c346655d32844eda0a9ec3d3d9b16c1c27248bda424fc8b91804d26cd8986454

SHA512
d432bcf7874ea3f74ec7e4fc51b400f7c3492b06479fd12949b7cde698e513bbabd08afae8d0ffc2efbe3d7d0cb44e08c5b2bba3f116b9fd6120713e2cd5f96e

Download Submit
memory/1716-35-0x0000000000320000-0x000000000033A000-memory.dmp

Filesize
104KB

Download
memory/2508-27-0x000007FEF53E0000-0x000007FEF5DCC000-memory.dmp

Filesize
9.9MB

Download
memory/2508-0-0x000007FEF53E3000-0x000007FEF53E4000-memory.dmp

Filesize
4KB

Download
memory/2508-2-0x000007FEF53E0000-0x000007FEF5DCC000-memory.dmp

Filesize
9.9MB

Download
memory/2508-1-0x0000000000CD0000-0x0000000000CEA000-memory.dmp

Filesize
104KB

Download
memory/2576-38-0x0000000000390000-0x00000000003AA000-memory.dmp

Filesize
104KB

Download
memory/2604-15-0x000000001B700000-0x000000001B9E2000-memory.dmp

Filesize
2.9MB

Download
memory/2604-16-0x0000000001F80000-0x0000000001F88000-memory.dmp

Filesize
32KB

Download
memory/2704-9-0x0000000001DE0000-0x0000000001DE8000-memory.dmp

Filesize
32KB

Download
memory/2704-8-0x000000001B520000-0x000000001B802000-memory.dmp

Filesize
2.9MB

Download
memory/2704-7-0x00000000029D0000-0x0000000002A50000-memory.dmp

Filesize
512KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads