xworm | 5c1346a2797c9c8b47972115bf2b91dd440737b9cf9e6b0a25fe3193b23ab440

General

Target

5c1346a2797c9c8b47972115bf2b91dd440737b9cf9e6b0a25fe3193b23ab440.exe
Size

35KB
MD5

0d5ea6652d99bf3f17218c031f012e01
SHA1

cfff73f3aaf1660f3149a6321b26cf9a28f82580
SHA256

5c1346a2797c9c8b47972115bf2b91dd440737b9cf9e6b0a25fe3193b23ab440
SHA512

07568853181443a2c0ea128131bdd2b38946fa6b41322395fd929933d14677b10e2583547e4ee7a9e8a20331e817d88098cebdaf213ec57b586c3e8dad19d869
SSDEEP

768:5Me7htYzhvffz3j0qoo9Fk942hO/hC/q+E:j7htYzhL3AkFk942hO/MC+E

Score

10^/10

xworm persistence rat trojan

Malware Config

Extracted

Family

xworm

Version

5.0

C2

156.225.129.218:7005

Mutex

a7qqxStX2Uo02aeJ

Attributes

Install_directory
%Userprofile%
install_file
svchosts.exe

aes.plain

Signatures

Detect Xworm Payload 2 IoCs

Processes:

resource	yara_rule
behavioral2/memory/3452-0-0x0000000000A20000-0x0000000000A30000-memory.dmp	family_xworm
C:\Users\Admin\svchosts.exe	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

Processes:

5c1346a2797c9c8b47972115bf2b91dd440737b9cf9e6b0a25fe3193b23ab440.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-3906287020-2915474608-1755617787-1000\Control Panel\International\Geo\Nation	5c1346a2797c9c8b47972115bf2b91dd440737b9cf9e6b0a25fe3193b23ab440.exe

Drops startup file 2 IoCs

Processes:

5c1346a2797c9c8b47972115bf2b91dd440737b9cf9e6b0a25fe3193b23ab440.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\svchosts.lnk	5c1346a2797c9c8b47972115bf2b91dd440737b9cf9e6b0a25fe3193b23ab440.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\svchosts.lnk	5c1346a2797c9c8b47972115bf2b91dd440737b9cf9e6b0a25fe3193b23ab440.exe

Executes dropped EXE 2 IoCs

Processes:

svchosts.exesvchosts.exe

pid process

988 svchosts.exe
5060 svchosts.exe

pid	process
988	svchosts.exe
5060	svchosts.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

5c1346a2797c9c8b47972115bf2b91dd440737b9cf9e6b0a25fe3193b23ab440.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3906287020-2915474608-1755617787-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\svchosts = "C:\\Users\\Admin\\svchosts.exe"	5c1346a2797c9c8b47972115bf2b91dd440737b9cf9e6b0a25fe3193b23ab440.exe

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

Processes:

schtasks.exe

pid process

4920 schtasks.exe

pid	process
4920	schtasks.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

5c1346a2797c9c8b47972115bf2b91dd440737b9cf9e6b0a25fe3193b23ab440.exesvchosts.exesvchosts.exe

description	pid	process
Token: SeDebugPrivilege	3452	5c1346a2797c9c8b47972115bf2b91dd440737b9cf9e6b0a25fe3193b23ab440.exe
Token: SeDebugPrivilege	988	svchosts.exe
Token: SeDebugPrivilege	5060	svchosts.exe

Suspicious use of WriteProcessMemory 2 IoCs

Processes:

5c1346a2797c9c8b47972115bf2b91dd440737b9cf9e6b0a25fe3193b23ab440.exe

description	pid	process	target process
PID 3452 wrote to memory of 4920	3452	5c1346a2797c9c8b47972115bf2b91dd440737b9cf9e6b0a25fe3193b23ab440.exe	schtasks.exe
PID 3452 wrote to memory of 4920	3452	5c1346a2797c9c8b47972115bf2b91dd440737b9cf9e6b0a25fe3193b23ab440.exe	schtasks.exe

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\5c1346a2797c9c8b47972115bf2b91dd440737b9cf9e6b0a25fe3193b23ab440.exe
"C:\Users\Admin\AppData\Local\Temp\5c1346a2797c9c8b47972115bf2b91dd440737b9cf9e6b0a25fe3193b23ab440.exe"
1⤵
- Checks computer location settings
- Drops startup file
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3452

C:\Windows\System32\schtasks.exe
"C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "svchosts" /tr "C:\Users\Admin\svchosts.exe"
2⤵
- Creates scheduled task(s)
PID:4920

C:\Users\Admin\svchosts.exe
C:\Users\Admin\svchosts.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:988

C:\Users\Admin\svchosts.exe
C:\Users\Admin\svchosts.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:5060

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Scheduled Task/Job

1

T1053

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

2

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\svchosts.exe.log
Filesize
654B

MD5
2ff39f6c7249774be85fd60a8f9a245e

SHA1
684ff36b31aedc1e587c8496c02722c6698c1c4e

SHA256
e1b91642d85d98124a6a31f710e137ab7fd90dec30e74a05ab7fcf3b7887dced

SHA512
1d7e8b92ef4afd463d62cfa7e8b9d1799db5bf2a263d3cd7840df2e0a1323d24eb595b5f8eb615c6cb15f9e3a7b4fc99f8dd6a3d34479222e966ec708998aed1

Download Submit
C:\Users\Admin\svchosts.exe
Filesize
35KB

MD5
0d5ea6652d99bf3f17218c031f012e01

SHA1
cfff73f3aaf1660f3149a6321b26cf9a28f82580

SHA256
5c1346a2797c9c8b47972115bf2b91dd440737b9cf9e6b0a25fe3193b23ab440

SHA512
07568853181443a2c0ea128131bdd2b38946fa6b41322395fd929933d14677b10e2583547e4ee7a9e8a20331e817d88098cebdaf213ec57b586c3e8dad19d869

Download Submit
memory/988-10-0x00007FFFD5830000-0x00007FFFD62F1000-memory.dmp

Filesize
10.8MB

Download
memory/988-12-0x00007FFFD5830000-0x00007FFFD62F1000-memory.dmp

Filesize
10.8MB

Download
memory/3452-1-0x00007FFFD5833000-0x00007FFFD5835000-memory.dmp

Filesize
8KB

Download
memory/3452-0-0x0000000000A20000-0x0000000000A30000-memory.dmp

Filesize
64KB

Download
memory/3452-6-0x00007FFFD5830000-0x00007FFFD62F1000-memory.dmp

Filesize
10.8MB

Download
memory/3452-7-0x00007FFFD5830000-0x00007FFFD62F1000-memory.dmp

Filesize
10.8MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads