xworm | 0240fc167d3e9cabeb5a9e707ce52d7842e332e084bef5e22b72fc3ecd3488c0

General

Target

0240fc167d3e9cabeb5a9e707ce52d7842e332e084bef5e22b72fc3ecd3488c0.exe
Size

78KB
MD5

959ac550de9dc34474a8d8b16a050cfd
SHA1

d6ad271189c5ea66b6ac3268b18c05fa26b5f0f0
SHA256

0240fc167d3e9cabeb5a9e707ce52d7842e332e084bef5e22b72fc3ecd3488c0
SHA512

2c2d837164824fc1503a022a43793e5586c08d6b6b633e7fe828289489fad4c90a7c0a9fb3f2b6de093e901e9b957670063107b06b1e1ea474335806955ab735
SSDEEP

1536:HBx2Kk3000uEZf4Tl+XbctEjt8Y50vuzsB1nKzvpmvqmUte4xRZ4T:H+LE00bZ2leMEZlmBIvh/XZ4

Score

10^/10

xworm defense_evasion discovery rat trojan

Malware Config

Extracted

Family

xworm

C2

againzamel.zapto.org:1188

damoni.zapto.org:1188

Attributes

Install_directory
%AppData%
install_file
Update.exe

Signatures

Detect Xworm Payload 2 IoCs

resource	yara_rule
behavioral1/files/0x0008000000012102-5.dat	family_xworm
behavioral1/memory/2316-8-0x00000000001A0000-0x00000000001B8000-memory.dmp	family_xworm

Xworm
Xworm is a remote access trojan written in C#.
trojan rat xworm
Xworm family
xworm

Executes dropped EXE 1 IoCs

pid	Process
2316	Update.exe

Loads dropped DLL 1 IoCs

pid	Process
2508	0240fc167d3e9cabeb5a9e707ce52d7842e332e084bef5e22b72fc3ecd3488c0.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

Obfuscated Files or Information: Command Obfuscation 1 TTPs
Adversaries may obfuscate content during command execution to impede detection.
defense_evasion

Command Obfuscation
T1027.010
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	0240fc167d3e9cabeb5a9e707ce52d7842e332e084bef5e22b72fc3ecd3488c0.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2008	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2008	powershell.exe
Token: SeDebugPrivilege	2316	Update.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2508 wrote to memory of 2008	2508	0240fc167d3e9cabeb5a9e707ce52d7842e332e084bef5e22b72fc3ecd3488c0.exe	30
PID 2508 wrote to memory of 2008	2508	0240fc167d3e9cabeb5a9e707ce52d7842e332e084bef5e22b72fc3ecd3488c0.exe	30
PID 2508 wrote to memory of 2008	2508	0240fc167d3e9cabeb5a9e707ce52d7842e332e084bef5e22b72fc3ecd3488c0.exe	30
PID 2508 wrote to memory of 2008	2508	0240fc167d3e9cabeb5a9e707ce52d7842e332e084bef5e22b72fc3ecd3488c0.exe	30
PID 2508 wrote to memory of 2316	2508	0240fc167d3e9cabeb5a9e707ce52d7842e332e084bef5e22b72fc3ecd3488c0.exe	32
PID 2508 wrote to memory of 2316	2508	0240fc167d3e9cabeb5a9e707ce52d7842e332e084bef5e22b72fc3ecd3488c0.exe	32
PID 2508 wrote to memory of 2316	2508	0240fc167d3e9cabeb5a9e707ce52d7842e332e084bef5e22b72fc3ecd3488c0.exe	32
PID 2508 wrote to memory of 2316	2508	0240fc167d3e9cabeb5a9e707ce52d7842e332e084bef5e22b72fc3ecd3488c0.exe	32

C:\Users\Admin\AppData\Local\Temp\0240fc167d3e9cabeb5a9e707ce52d7842e332e084bef5e22b72fc3ecd3488c0.exe
"C:\Users\Admin\AppData\Local\Temp\0240fc167d3e9cabeb5a9e707ce52d7842e332e084bef5e22b72fc3ecd3488c0.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2508
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -EncodedCommand "PAAjAHgAcQBqACMAPgBBAGQAZAAtAE0AcABQAHIAZQBmAGUAcgBlAG4AYwBlACAAPAAjAHcAagB3ACMAPgAgAC0ARQB4AGMAbAB1AHMAaQBvAG4AUABhAHQAaAAgAEAAKAAkAGUAbgB2ADoAVQBzAGUAcgBQAHIAbwBmAGkAbABlACwAJABlAG4AdgA6AFMAeQBzAHQAZQBtAEQAcgBpAHYAZQApACAAPAAjAG0AagBlACMAPgAgAC0ARgBvAHIAYwBlACAAPAAjAGMAaQBqACMAPgA="
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2008
- C:\Users\Admin\AppData\Local\Temp\Update.exe
  "C:\Users\Admin\AppData\Local\Temp\Update.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:2316

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Obfuscated Files or Information

1

T1027

Command Obfuscation

1

T1027.010

Credential Access

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\Update.exe

Filesize
73KB

MD5
d7cec6a9ad4510455738ee60758739d7

SHA1
9f935bff03c71d297d2ce3ca9c0ad1675bcf354d

SHA256
f6f746d7b5a8bd106b2b3fddb8839c51f45bf34b58f37ed6ba3b3e4ddc215fb4

SHA512
369b97be0d0793fc53936961e16c71cf016c801bf201dd3420bc87f1b4a9b9383359b22ce075e2d9452cbbcf329887ab62a05dab4854f9afcf61b22b0c4e9ae8

Download Submit
memory/2316-8-0x00000000001A0000-0x00000000001B8000-memory.dmp

Filesize
96KB

Download

Analysis

Sharing