xworm | a8dd80f236a5b28dd7f4856ca32bb254832d4a66a0405cc32e61bd4762915714

Analysis

max time kernel
15s
max time network
16s
platform
windows7_x64
resource
win7-20241023-en
resource tags

arch:x64arch:x86image:win7-20241023-enlocale:en-usos:windows7-x64system
submitted
05/03/2025, 14:28

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General

Target

CulMasterBot.exe
Size

758KB
MD5

2417767a8d9740d0c304bb72ed185b67
SHA1

21bbd4db761968bc1fb0708767ef10814dd41868
SHA256

7f8878badd48f61c9af71d304ee2cc5d2e580a92816b721a206d2889063f4b81
SHA512

c0b947608909829271cefb797017933a02d55a378eb6f70ecba20c3d86658c46fb58a515e90d32419cfdeab63d7e166fc699cbf0bfba8b5135301b5d8b9f63ae
SSDEEP

12288:7fQqQuCmgRYeJIDdrd+pQkKVn6nY4u5fsR1b:7fQqQuiJIprdOQJn6nbuiF

Score

10^/10

xworm discovery rat trojan

Malware Config

Extracted

Family

xworm

Version

5.0

176.65.134.31:7000

Mutex

6H3f8cuSC1IGC8kj

Attributes

install_file
USB.exe

aes.plain

Signatures

Detect Xworm Payload 2 IoCs

resource	yara_rule
behavioral1/memory/2660-8-0x0000000000400000-0x000000000040E000-memory.dmp	family_xworm
behavioral1/memory/2660-9-0x0000000000400000-0x000000000040E000-memory.dmp	family_xworm

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

System Location Discovery: System Language Discovery 1 TTPs 1 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	CulMasterBot.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2396	CulMasterBot.exe
2396	CulMasterBot.exe
2396	CulMasterBot.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2396	CulMasterBot.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2396 wrote to memory of 2660	2396	CulMasterBot.exe	30
PID 2396 wrote to memory of 2660	2396	CulMasterBot.exe	30
PID 2396 wrote to memory of 2660	2396	CulMasterBot.exe	30
PID 2396 wrote to memory of 2660	2396	CulMasterBot.exe	30
PID 2396 wrote to memory of 2660	2396	CulMasterBot.exe	30
PID 2396 wrote to memory of 2660	2396	CulMasterBot.exe	30
PID 2396 wrote to memory of 2660	2396	CulMasterBot.exe	30
PID 2396 wrote to memory of 2660	2396	CulMasterBot.exe	30
PID 2396 wrote to memory of 2660	2396	CulMasterBot.exe	30
PID 2396 wrote to memory of 2660	2396	CulMasterBot.exe	30
PID 2396 wrote to memory of 2660	2396	CulMasterBot.exe	30
PID 2396 wrote to memory of 2660	2396	CulMasterBot.exe	30

C:\Users\Admin\AppData\Local\Temp\CulMasterBot.exe
"C:\Users\Admin\AppData\Local\Temp\CulMasterBot.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2396
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe"
  2⤵
  PID:2660

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/2396-12-0x000000007403E000-0x000000007403F000-memory.dmp

Filesize
4KB

Download
memory/2396-1-0x00000000000D0000-0x0000000000192000-memory.dmp

Filesize
776KB

Download
memory/2396-2-0x0000000000570000-0x0000000000596000-memory.dmp

Filesize
152KB

Download
memory/2396-3-0x0000000074030000-0x000000007471E000-memory.dmp

Filesize
6.9MB

Download
memory/2396-4-0x0000000000860000-0x000000000087A000-memory.dmp

Filesize
104KB

Download
memory/2396-5-0x00000000020B0000-0x00000000020B6000-memory.dmp

Filesize
24KB

Download
memory/2396-0-0x000000007403E000-0x000000007403F000-memory.dmp

Filesize
4KB

Download
memory/2396-13-0x0000000074030000-0x000000007471E000-memory.dmp

Filesize
6.9MB

Download
memory/2660-6-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/2660-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2660-9-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/2660-8-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/2660-7-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download