xworm | 401c04370ccefbc9fc186f227d7dcb029c2dfa23c8a77011abe51305471247ad

General

Target

401c04370ccefbc9fc186f227d7dcb029c2dfa23c8a77011abe51305471247ad.exe
Size

79KB
MD5

f1e41321cd4394089842e5121d5cb649
SHA1

96e3aff8a0eecda81e8d0b10323a1680b1136387
SHA256

401c04370ccefbc9fc186f227d7dcb029c2dfa23c8a77011abe51305471247ad
SHA512

243adaeca82d89fa982c839c0b730b26e32a228d8e493edb04508f416b262334263c435fead1bffa3ad54a2b574e99cae2fa82d13d2d0c3dbca28c5184f4c9e3
SSDEEP

1536:IU8SlJ3N8bspa09DfVtHbRZuBDXcCK68u2yOeYdXGnE1B:cSlJrDHbRZMDXUmO9Wn6B

Score

10^/10

xworm execution persistence rat trojan

Malware Config

Extracted

Family

xworm

C2

listing-trackbacks.gl.at.ply.gg:8848

Attributes

Install_directory
%AppData%
install_file
USB.exe

Signatures

Detect Xworm Payload 5 IoCs

resource	yara_rule
behavioral1/memory/2084-1-0x0000000001360000-0x000000000137A000-memory.dmp	family_xworm
behavioral1/files/0x000d00000001430e-31.dat	family_xworm
behavioral1/memory/1432-33-0x0000000000330000-0x000000000034A000-memory.dmp	family_xworm
behavioral1/memory/1056-38-0x00000000002F0000-0x000000000030A000-memory.dmp	family_xworm
behavioral1/memory/772-40-0x00000000000F0000-0x000000000010A000-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
2076	powershell.exe
2448	powershell.exe
2960	powershell.exe
2496	powershell.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\TLauncher.lnk	401c04370ccefbc9fc186f227d7dcb029c2dfa23c8a77011abe51305471247ad.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\TLauncher.lnk	401c04370ccefbc9fc186f227d7dcb029c2dfa23c8a77011abe51305471247ad.exe

Executes dropped EXE 3 IoCs

pid	Process
1432	TLauncher
1056	TLauncher
772	TLauncher

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-1-5-21-2297530677-1229052932-2803917579-1000\Software\Microsoft\Windows\CurrentVersion\Run\TLauncher = "C:\\Users\\Admin\\AppData\\Roaming\\TLauncher"	401c04370ccefbc9fc186f227d7dcb029c2dfa23c8a77011abe51305471247ad.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

Creates scheduled task(s) 1 TTPs 1 IoCs

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

persistence

Scheduled Task/Job

T1053

pid	Process
2476	schtasks.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
2076	powershell.exe
2448	powershell.exe
2960	powershell.exe
2496	powershell.exe
2084	401c04370ccefbc9fc186f227d7dcb029c2dfa23c8a77011abe51305471247ad.exe

Suspicious use of AdjustPrivilegeToken 9 IoCs

description	pid	Process
Token: SeDebugPrivilege	2084	401c04370ccefbc9fc186f227d7dcb029c2dfa23c8a77011abe51305471247ad.exe
Token: SeDebugPrivilege	2076	powershell.exe
Token: SeDebugPrivilege	2448	powershell.exe
Token: SeDebugPrivilege	2960	powershell.exe
Token: SeDebugPrivilege	2496	powershell.exe
Token: SeDebugPrivilege	2084	401c04370ccefbc9fc186f227d7dcb029c2dfa23c8a77011abe51305471247ad.exe
Token: SeDebugPrivilege	1432	TLauncher
Token: SeDebugPrivilege	1056	TLauncher
Token: SeDebugPrivilege	772	TLauncher

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2084	401c04370ccefbc9fc186f227d7dcb029c2dfa23c8a77011abe51305471247ad.exe

Suspicious use of WriteProcessMemory 24 IoCs

description	pid	Process	procid_target
PID 2084 wrote to memory of 2076	2084	401c04370ccefbc9fc186f227d7dcb029c2dfa23c8a77011abe51305471247ad.exe	29
PID 2084 wrote to memory of 2076	2084	401c04370ccefbc9fc186f227d7dcb029c2dfa23c8a77011abe51305471247ad.exe	29
PID 2084 wrote to memory of 2076	2084	401c04370ccefbc9fc186f227d7dcb029c2dfa23c8a77011abe51305471247ad.exe	29
PID 2084 wrote to memory of 2448	2084	401c04370ccefbc9fc186f227d7dcb029c2dfa23c8a77011abe51305471247ad.exe	31
PID 2084 wrote to memory of 2448	2084	401c04370ccefbc9fc186f227d7dcb029c2dfa23c8a77011abe51305471247ad.exe	31
PID 2084 wrote to memory of 2448	2084	401c04370ccefbc9fc186f227d7dcb029c2dfa23c8a77011abe51305471247ad.exe	31
PID 2084 wrote to memory of 2960	2084	401c04370ccefbc9fc186f227d7dcb029c2dfa23c8a77011abe51305471247ad.exe	33
PID 2084 wrote to memory of 2960	2084	401c04370ccefbc9fc186f227d7dcb029c2dfa23c8a77011abe51305471247ad.exe	33
PID 2084 wrote to memory of 2960	2084	401c04370ccefbc9fc186f227d7dcb029c2dfa23c8a77011abe51305471247ad.exe	33
PID 2084 wrote to memory of 2496	2084	401c04370ccefbc9fc186f227d7dcb029c2dfa23c8a77011abe51305471247ad.exe	35
PID 2084 wrote to memory of 2496	2084	401c04370ccefbc9fc186f227d7dcb029c2dfa23c8a77011abe51305471247ad.exe	35
PID 2084 wrote to memory of 2496	2084	401c04370ccefbc9fc186f227d7dcb029c2dfa23c8a77011abe51305471247ad.exe	35
PID 2084 wrote to memory of 2476	2084	401c04370ccefbc9fc186f227d7dcb029c2dfa23c8a77011abe51305471247ad.exe	37
PID 2084 wrote to memory of 2476	2084	401c04370ccefbc9fc186f227d7dcb029c2dfa23c8a77011abe51305471247ad.exe	37
PID 2084 wrote to memory of 2476	2084	401c04370ccefbc9fc186f227d7dcb029c2dfa23c8a77011abe51305471247ad.exe	37
PID 276 wrote to memory of 1432	276	taskeng.exe	40
PID 276 wrote to memory of 1432	276	taskeng.exe	40
PID 276 wrote to memory of 1432	276	taskeng.exe	40
PID 276 wrote to memory of 1056	276	taskeng.exe	43
PID 276 wrote to memory of 1056	276	taskeng.exe	43
PID 276 wrote to memory of 1056	276	taskeng.exe	43
PID 276 wrote to memory of 772	276	taskeng.exe	44
PID 276 wrote to memory of 772	276	taskeng.exe	44
PID 276 wrote to memory of 772	276	taskeng.exe	44

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\401c04370ccefbc9fc186f227d7dcb029c2dfa23c8a77011abe51305471247ad.exe
"C:\Users\Admin\AppData\Local\Temp\401c04370ccefbc9fc186f227d7dcb029c2dfa23c8a77011abe51305471247ad.exe"
1⤵
- 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:2084
- 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\401c04370ccefbc9fc186f227d7dcb029c2dfa23c8a77011abe51305471247ad.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2076
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess '401c04370ccefbc9fc186f227d7dcb029c2dfa23c8a77011abe51305471247ad.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2448
- 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\TLauncher'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2960
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'TLauncher'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2496
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "TLauncher" /tr "C:\Users\Admin\AppData\Roaming\TLauncher"
  2⤵
  - Creates scheduled task(s)
  PID:2476

C:\Windows\system32\taskeng.exe
taskeng.exe {D1E76FF2-2E9C-478D-8442-1B36618C40EB} S-1-5-21-2297530677-1229052932-2803917579-1000:HKULBIBU\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:276
- C:\Users\Admin\AppData\Roaming\TLauncher
  C:\Users\Admin\AppData\Roaming\TLauncher
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:1432
- C:\Users\Admin\AppData\Roaming\TLauncher
  C:\Users\Admin\AppData\Roaming\TLauncher
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:1056
- C:\Users\Admin\AppData\Roaming\TLauncher
  C:\Users\Admin\AppData\Roaming\TLauncher
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:772

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

Scheduled Task/Job

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

Scheduled Task/Job

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

Scheduled Task/Job

Defense Evasion

Modify Registry

1

T1112

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
8ecddd26cad16d55045a731fd861f104

SHA1
0ac14606e024ac27873139fa5162220df07c2048

SHA256
5e8f255af7604d2076c91b24c70656cbe44611d3a9197f9a1c43e06fd8a8e785

SHA512
69abf384f8e035ea06cb3de33e428d30505f617b26cbed44665195848741052580fcae679aa2d0c0ebfc3c63dfe13c0754e2c8ad87b7ea7bb8222ff96997c5be

Download Submit
C:\Users\Admin\AppData\Roaming\TLauncher

Filesize
79KB

MD5
f1e41321cd4394089842e5121d5cb649

SHA1
96e3aff8a0eecda81e8d0b10323a1680b1136387

SHA256
401c04370ccefbc9fc186f227d7dcb029c2dfa23c8a77011abe51305471247ad

SHA512
243adaeca82d89fa982c839c0b730b26e32a228d8e493edb04508f416b262334263c435fead1bffa3ad54a2b574e99cae2fa82d13d2d0c3dbca28c5184f4c9e3

Download Submit
memory/772-40-0x00000000000F0000-0x000000000010A000-memory.dmp

Filesize
104KB

Download
memory/1056-38-0x00000000002F0000-0x000000000030A000-memory.dmp

Filesize
104KB

Download
memory/1432-33-0x0000000000330000-0x000000000034A000-memory.dmp

Filesize
104KB

Download
memory/2076-7-0x0000000002E90000-0x0000000002F10000-memory.dmp

Filesize
512KB

Download
memory/2076-8-0x000000001B680000-0x000000001B962000-memory.dmp

Filesize
2.9MB

Download
memory/2076-9-0x0000000001D90000-0x0000000001D98000-memory.dmp

Filesize
32KB

Download
memory/2084-34-0x000007FEF5F83000-0x000007FEF5F84000-memory.dmp

Filesize
4KB

Download
memory/2084-0-0x000007FEF5F83000-0x000007FEF5F84000-memory.dmp

Filesize
4KB

Download
memory/2084-2-0x000007FEF5F80000-0x000007FEF696C000-memory.dmp

Filesize
9.9MB

Download
memory/2084-35-0x000007FEF5F80000-0x000007FEF696C000-memory.dmp

Filesize
9.9MB

Download
memory/2084-1-0x0000000001360000-0x000000000137A000-memory.dmp

Filesize
104KB

Download
memory/2448-16-0x0000000001F40000-0x0000000001F48000-memory.dmp

Filesize
32KB

Download
memory/2448-15-0x000000001B620000-0x000000001B902000-memory.dmp

Filesize
2.9MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads