xworm | 571cfccf544e14d1f2c142869bbfa626efdb3bdc51f14218340ade7ec4dc7e7f

Analysis

max time kernel
276s
max time network
275s
platform
windows10-2004_x64
resource
win10v2004-20240709-en
resource tags

arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
submitted
15/07/2024, 14:18

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General

Target

New folder/XClient - Copy (23).exe
Size

63KB
MD5

2ec6a81606494f96a98e62ea7bbf370a
SHA1

c11efe9e36f56b9187547b83a82aec7d53ca8a0f
SHA256

d9ae6b8d1057175b7fec23351b5731f54286bda4c7990b4d05a4790a22054f1f
SHA512

147020aa1336583b66d265de731643ba463323716936a836ae0c0b8322bf389b5effa56701e636d547def03f0e83ca00a6acf73cc3320b1eefce0d2756f785f4
SSDEEP

1536:5NQxMwbdqmz+cwBOjjkbXJO6Yq9xMO23WxD:rQSiomz+cw8jjkbXAWuO23AD

Score

10^/10

xworm rat trojan

Malware Config

Extracted

Family

xworm

father-status.gl.at.ply.gg:64204

Attributes

Install_directory
%AppData%
install_file
$77-penisware-cumedition.exe

Signatures

Detect Xworm Payload 2 IoCs

resource	yara_rule
behavioral15/memory/4752-1-0x00000000007A0000-0x00000000007B6000-memory.dmp	family_xworm
behavioral15/files/0x000b0000000233b3-6.dat	family_xworm

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

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-1705699165-553239100-4129523827-1000\Control Panel\International\Geo\Nation	XClient - Copy (23).exe

Executes dropped EXE 4 IoCs

pid	Process
1620	$77-penisware-cumedition.exe
532	$77-penisware-cumedition.exe
768	$77-penisware-cumedition.exe
1868	$77-penisware-cumedition.exe

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

System Information Discovery
T1082

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
1536	timeout.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
2536	schtasks.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeDebugPrivilege	4752	XClient - Copy (23).exe
Token: SeDebugPrivilege	4752	XClient - Copy (23).exe
Token: SeDebugPrivilege	1620	$77-penisware-cumedition.exe
Token: SeDebugPrivilege	532	$77-penisware-cumedition.exe
Token: SeDebugPrivilege	768	$77-penisware-cumedition.exe
Token: SeDebugPrivilege	1868	$77-penisware-cumedition.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 4752 wrote to memory of 2536	4752	XClient - Copy (23).exe	86
PID 4752 wrote to memory of 2536	4752	XClient - Copy (23).exe	86
PID 4752 wrote to memory of 4436	4752	XClient - Copy (23).exe	95
PID 4752 wrote to memory of 4436	4752	XClient - Copy (23).exe	95
PID 4752 wrote to memory of 1044	4752	XClient - Copy (23).exe	97
PID 4752 wrote to memory of 1044	4752	XClient - Copy (23).exe	97
PID 1044 wrote to memory of 1536	1044	cmd.exe	99
PID 1044 wrote to memory of 1536	1044	cmd.exe	99

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\New folder\XClient - Copy (23).exe
"C:\Users\Admin\AppData\Local\Temp\New folder\XClient - Copy (23).exe"
1⤵
- Checks computer location settings
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4752
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "$77-penisware-cumedition" /tr "C:\Users\Admin\AppData\Roaming\$77-penisware-cumedition.exe"
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:2536
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /delete /f /tn "$77-penisware-cumedition"
  2⤵
  PID:4436
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmpDA9D.tmp.bat""
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1044
- - C:\Windows\system32\timeout.exe
    timeout 3
    3⤵
    - Delays execution with timeout.exe
    PID:1536

C:\Users\Admin\AppData\Roaming\$77-penisware-cumedition.exe
C:\Users\Admin\AppData\Roaming\$77-penisware-cumedition.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:1620

C:\Users\Admin\AppData\Roaming\$77-penisware-cumedition.exe
C:\Users\Admin\AppData\Roaming\$77-penisware-cumedition.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:532

C:\Users\Admin\AppData\Roaming\$77-penisware-cumedition.exe
C:\Users\Admin\AppData\Roaming\$77-penisware-cumedition.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:768

C:\Users\Admin\AppData\Roaming\$77-penisware-cumedition.exe
C:\Users\Admin\AppData\Roaming\$77-penisware-cumedition.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:1868

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\$77-penisware-cumedition.exe.log

Filesize
654B

MD5
2ff39f6c7249774be85fd60a8f9a245e

SHA1
684ff36b31aedc1e587c8496c02722c6698c1c4e

SHA256
e1b91642d85d98124a6a31f710e137ab7fd90dec30e74a05ab7fcf3b7887dced

SHA512
1d7e8b92ef4afd463d62cfa7e8b9d1799db5bf2a263d3cd7840df2e0a1323d24eb595b5f8eb615c6cb15f9e3a7b4fc99f8dd6a3d34479222e966ec708998aed1

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpDA9D.tmp.bat

Filesize
182B

MD5
095ed2e39c6a896122cf501fd93d10e9

SHA1
9fcabbbb045fb0891b48074d87296aae4b4dca61

SHA256
71a0a32360c775bfc16c15f5a9c45128e6602de8915f153d23e4886fbcd45136

SHA512
9af855c3c18bbd102d86744c4fa1734f84c1875bb6f6a921931a4582ae50f0c5853c7f360ea5b5ddc09b2d44985c04900d71e99b91fb26c1e932bf340a34cf85

Download Submit
C:\Users\Admin\AppData\Roaming\$77-penisware-cumedition.exe

Filesize
63KB

MD5
2ec6a81606494f96a98e62ea7bbf370a

SHA1
c11efe9e36f56b9187547b83a82aec7d53ca8a0f

SHA256
d9ae6b8d1057175b7fec23351b5731f54286bda4c7990b4d05a4790a22054f1f

SHA512
147020aa1336583b66d265de731643ba463323716936a836ae0c0b8322bf389b5effa56701e636d547def03f0e83ca00a6acf73cc3320b1eefce0d2756f785f4

Download Submit
memory/1620-7-0x00007FF8B5580000-0x00007FF8B6041000-memory.dmp

Filesize
10.8MB

Download
memory/1620-9-0x00007FF8B5580000-0x00007FF8B6041000-memory.dmp

Filesize
10.8MB

Download
memory/4752-0-0x00007FF8B5583000-0x00007FF8B5585000-memory.dmp

Filesize
8KB

Download
memory/4752-1-0x00000000007A0000-0x00000000007B6000-memory.dmp

Filesize
88KB

Download
memory/4752-3-0x00007FF8B5580000-0x00007FF8B6041000-memory.dmp

Filesize
10.8MB

Download
memory/4752-4-0x00007FF8B5580000-0x00007FF8B6041000-memory.dmp

Filesize
10.8MB

Download
memory/4752-18-0x00007FF8B5580000-0x00007FF8B6041000-memory.dmp

Filesize
10.8MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads