xworm | 3793ec0ce7377024a044bfb4db49b2ca9c89726e39c05dfcc7bd30dd05812646

General

Target

3793ec0ce7377024a044bfb4db49b2ca9c89726e39c05dfcc7bd30dd05812646.exe
Size

47KB
MD5

a56eb91e02fa5d139def4bf6f952ca7c
SHA1

9232c055aba6eb4cae8d85e5eef78582857cb012
SHA256

3793ec0ce7377024a044bfb4db49b2ca9c89726e39c05dfcc7bd30dd05812646
SHA512

3ef2f95369a52208ca6690fab9966d41165189f401ef57118f9cf661a530126a76d4cf1e5773528204d2979e44a94f6f8bdb137ba0157648da2f243d3ef7e8bc
SSDEEP

768:VO9OA32gn5HkqwEAvDdndbTnJXHRrC6Lx9QTsiPmhLO91wXe:gOi2S1iEARdf1Px9Qy1OEXe

Score

10^/10

xworm persistence rat trojan

Malware Config

Extracted

Family

xworm

C2

found-fda.gl.at.ply.gg:49099

Mutex

vjoiUHY4pRhcpnSN

Attributes

install_file
USB.exe

aes.plain

Signatures

Detect Xworm Payload 4 IoCs

resource	yara_rule
behavioral1/memory/804-1-0x0000000000DB0000-0x0000000000DC2000-memory.dmp	family_xworm
behavioral1/files/0x000700000001867d-10.dat	family_xworm
behavioral1/memory/1424-12-0x0000000000CA0000-0x0000000000CB2000-memory.dmp	family_xworm
behavioral1/memory/2960-14-0x0000000000240000-0x0000000000252000-memory.dmp	family_xworm

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

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\3793ec0ce7377024a044bfb4db49b2ca9c89726e39c05dfcc7bd30dd05812646.exe	3793ec0ce7377024a044bfb4db49b2ca9c89726e39c05dfcc7bd30dd05812646.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\3793ec0ce7377024a044bfb4db49b2ca9c89726e39c05dfcc7bd30dd05812646.exe	3793ec0ce7377024a044bfb4db49b2ca9c89726e39c05dfcc7bd30dd05812646.exe

Executes dropped EXE 2 IoCs

pid	Process
1424	3793ec0ce7377024a044bfb4db49b2ca9c89726e39c05dfcc7bd30dd05812646.exe
2960	3793ec0ce7377024a044bfb4db49b2ca9c89726e39c05dfcc7bd30dd05812646.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-312935884-697965778-3955649944-1000\Software\Microsoft\Windows\CurrentVersion\Run\3793ec0ce7377024a044bfb4db49b2ca9c89726e39c05dfcc7bd30dd05812646 = "C:\\Users\\Admin\\AppData\\Roaming\\3793ec0ce7377024a044bfb4db49b2ca9c89726e39c05dfcc7bd30dd05812646.exe"	3793ec0ce7377024a044bfb4db49b2ca9c89726e39c05dfcc7bd30dd05812646.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

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
2848	schtasks.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	804	3793ec0ce7377024a044bfb4db49b2ca9c89726e39c05dfcc7bd30dd05812646.exe
Token: SeDebugPrivilege	1424	3793ec0ce7377024a044bfb4db49b2ca9c89726e39c05dfcc7bd30dd05812646.exe
Token: SeDebugPrivilege	2960	3793ec0ce7377024a044bfb4db49b2ca9c89726e39c05dfcc7bd30dd05812646.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 804 wrote to memory of 2848	804	3793ec0ce7377024a044bfb4db49b2ca9c89726e39c05dfcc7bd30dd05812646.exe	31
PID 804 wrote to memory of 2848	804	3793ec0ce7377024a044bfb4db49b2ca9c89726e39c05dfcc7bd30dd05812646.exe	31
PID 804 wrote to memory of 2848	804	3793ec0ce7377024a044bfb4db49b2ca9c89726e39c05dfcc7bd30dd05812646.exe	31
PID 2356 wrote to memory of 1424	2356	taskeng.exe	35
PID 2356 wrote to memory of 1424	2356	taskeng.exe	35
PID 2356 wrote to memory of 1424	2356	taskeng.exe	35
PID 2356 wrote to memory of 2960	2356	taskeng.exe	36
PID 2356 wrote to memory of 2960	2356	taskeng.exe	36
PID 2356 wrote to memory of 2960	2356	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\3793ec0ce7377024a044bfb4db49b2ca9c89726e39c05dfcc7bd30dd05812646.exe
"C:\Users\Admin\AppData\Local\Temp\3793ec0ce7377024a044bfb4db49b2ca9c89726e39c05dfcc7bd30dd05812646.exe"
1⤵
- Drops startup file
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:804
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /f /sc minute /mo 1 /tn "3793ec0ce7377024a044bfb4db49b2ca9c89726e39c05dfcc7bd30dd05812646" /tr "C:\Users\Admin\AppData\Roaming\3793ec0ce7377024a044bfb4db49b2ca9c89726e39c05dfcc7bd30dd05812646.exe"
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:2848

C:\Windows\system32\taskeng.exe
taskeng.exe {039348E6-7814-4AF1-9525-2C447B7D8617} S-1-5-21-312935884-697965778-3955649944-1000:MXQFNXLT\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:2356
- C:\Users\Admin\AppData\Roaming\3793ec0ce7377024a044bfb4db49b2ca9c89726e39c05dfcc7bd30dd05812646.exe
  C:\Users\Admin\AppData\Roaming\3793ec0ce7377024a044bfb4db49b2ca9c89726e39c05dfcc7bd30dd05812646.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:1424
- C:\Users\Admin\AppData\Roaming\3793ec0ce7377024a044bfb4db49b2ca9c89726e39c05dfcc7bd30dd05812646.exe
  C:\Users\Admin\AppData\Roaming\3793ec0ce7377024a044bfb4db49b2ca9c89726e39c05dfcc7bd30dd05812646.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:2960

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\3793ec0ce7377024a044bfb4db49b2ca9c89726e39c05dfcc7bd30dd05812646.exe

Filesize
47KB

MD5
a56eb91e02fa5d139def4bf6f952ca7c

SHA1
9232c055aba6eb4cae8d85e5eef78582857cb012

SHA256
3793ec0ce7377024a044bfb4db49b2ca9c89726e39c05dfcc7bd30dd05812646

SHA512
3ef2f95369a52208ca6690fab9966d41165189f401ef57118f9cf661a530126a76d4cf1e5773528204d2979e44a94f6f8bdb137ba0157648da2f243d3ef7e8bc

Download Submit
memory/804-0-0x000007FEF5193000-0x000007FEF5194000-memory.dmp

Filesize
4KB

Download
memory/804-1-0x0000000000DB0000-0x0000000000DC2000-memory.dmp

Filesize
72KB

Download
memory/804-3-0x000007FEF5190000-0x000007FEF5B7C000-memory.dmp

Filesize
9.9MB

Download
memory/804-7-0x000007FEF5193000-0x000007FEF5194000-memory.dmp

Filesize
4KB

Download
memory/804-8-0x000007FEF5190000-0x000007FEF5B7C000-memory.dmp

Filesize
9.9MB

Download
memory/1424-12-0x0000000000CA0000-0x0000000000CB2000-memory.dmp

Filesize
72KB

Download
memory/2960-14-0x0000000000240000-0x0000000000252000-memory.dmp

Filesize
72KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads