xworm | 499c7636df097d93645acbdb4fae234ae8d0a676bb9167d63535169124b08600

General

Target

ashbeel.exe
Size

82KB
MD5

b6a12c8b32df34c2aa3fbafcab492aba
SHA1

02d49759282d72e2c55277c802ea531394d6c602
SHA256

499c7636df097d93645acbdb4fae234ae8d0a676bb9167d63535169124b08600
SHA512

ed1ed912774b2822848f0d67f06483816023eac524d1e4cf30e57de35436ba6eed8ef16df2533f3440f7fab78661a22627a71c8096ecbf1da7554e56f5246693
SSDEEP

1536:vJvMimNV6OlhxifG9TzWRqZnGX0dPQXL+b1A31U7ey5EaXABOnWqHN7bF1:vNSlhAfgToqZq+b1AC5EaXABOWgN7bf

Score

10^/10

xworm rat trojan

Malware Config

Extracted

Family

xworm

C2

127.0.0.1:7000

Attributes

Install_directory
%AppData%
install_file
RealtekUService86.exe

Signatures

Detect Xworm Payload 4 IoCs

resource	yara_rule
behavioral1/memory/352-1-0x0000000000ED0000-0x0000000000EEA000-memory.dmp	family_xworm
behavioral1/files/0x000d000000012276-6.dat	family_xworm
behavioral1/memory/2732-8-0x00000000008E0000-0x00000000008FA000-memory.dmp	family_xworm
behavioral1/memory/2152-11-0x0000000001360000-0x000000000137A000-memory.dmp	family_xworm

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

Executes dropped EXE 3 IoCs

pid	Process
2732	RealtekUService86.exe
2152	RealtekUService86.exe
1940	RealtekUService86.exe

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

System Information Discovery
T1082

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
1672	schtasks.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
352	ashbeel.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

description	pid	Process
Token: SeDebugPrivilege	352	ashbeel.exe
Token: SeDebugPrivilege	352	ashbeel.exe
Token: SeDebugPrivilege	2732	RealtekUService86.exe
Token: SeDebugPrivilege	2152	RealtekUService86.exe
Token: SeDebugPrivilege	1940	RealtekUService86.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
352	ashbeel.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 352 wrote to memory of 1672	352	ashbeel.exe	30
PID 352 wrote to memory of 1672	352	ashbeel.exe	30
PID 352 wrote to memory of 1672	352	ashbeel.exe	30
PID 2868 wrote to memory of 2732	2868	taskeng.exe	34
PID 2868 wrote to memory of 2732	2868	taskeng.exe	34
PID 2868 wrote to memory of 2732	2868	taskeng.exe	34
PID 2868 wrote to memory of 2152	2868	taskeng.exe	35
PID 2868 wrote to memory of 2152	2868	taskeng.exe	35
PID 2868 wrote to memory of 2152	2868	taskeng.exe	35
PID 2868 wrote to memory of 1940	2868	taskeng.exe	36
PID 2868 wrote to memory of 1940	2868	taskeng.exe	36
PID 2868 wrote to memory of 1940	2868	taskeng.exe	36

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\ashbeel.exe
"C:\Users\Admin\AppData\Local\Temp\ashbeel.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:352
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "RealtekUService86" /tr "C:\Users\Admin\AppData\Roaming\RealtekUService86.exe"
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:1672

C:\Windows\system32\taskeng.exe
taskeng.exe {9A1AADAD-A128-4135-ACC3-BF767174E6FD} S-1-5-21-4177215427-74451935-3209572229-1000:JSMURNPT\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:2868
- C:\Users\Admin\AppData\Roaming\RealtekUService86.exe
  C:\Users\Admin\AppData\Roaming\RealtekUService86.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:2732
- C:\Users\Admin\AppData\Roaming\RealtekUService86.exe
  C:\Users\Admin\AppData\Roaming\RealtekUService86.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:2152
- C:\Users\Admin\AppData\Roaming\RealtekUService86.exe
  C:\Users\Admin\AppData\Roaming\RealtekUService86.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:1940

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

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\RealtekUService86.exe

Filesize
82KB

MD5
b6a12c8b32df34c2aa3fbafcab492aba

SHA1
02d49759282d72e2c55277c802ea531394d6c602

SHA256
499c7636df097d93645acbdb4fae234ae8d0a676bb9167d63535169124b08600

SHA512
ed1ed912774b2822848f0d67f06483816023eac524d1e4cf30e57de35436ba6eed8ef16df2533f3440f7fab78661a22627a71c8096ecbf1da7554e56f5246693

Download Submit
memory/352-0-0x000007FEF6083000-0x000007FEF6084000-memory.dmp

Filesize
4KB

Download
memory/352-1-0x0000000000ED0000-0x0000000000EEA000-memory.dmp

Filesize
104KB

Download
memory/352-3-0x000007FEF6080000-0x000007FEF6A6C000-memory.dmp

Filesize
9.9MB

Download
memory/352-4-0x000007FEF6083000-0x000007FEF6084000-memory.dmp

Filesize
4KB

Download
memory/352-9-0x000007FEF6080000-0x000007FEF6A6C000-memory.dmp

Filesize
9.9MB

Download
memory/2152-11-0x0000000001360000-0x000000000137A000-memory.dmp

Filesize
104KB

Download
memory/2732-8-0x00000000008E0000-0x00000000008FA000-memory.dmp

Filesize
104KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads