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 2 IoCs

resource	yara_rule
behavioral2/memory/1940-1-0x0000000000CE0000-0x0000000000CF2000-memory.dmp	family_xworm
behavioral2/files/0x000e000000023b4e-8.dat	family_xworm

Xworm
Xworm is a remote access trojan written in C#.
trojan rat xworm
Xworm family
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-1-5-21-1045960512-3948844814-3059691613-1000\Control Panel\International\Geo\Nation	3793ec0ce7377024a044bfb4db49b2ca9c89726e39c05dfcc7bd30dd05812646.exe

Drops startup file 2 IoCs

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

Executes dropped EXE 2 IoCs

pid	Process
3168	3793ec0ce7377024a044bfb4db49b2ca9c89726e39c05dfcc7bd30dd05812646.exe
5028	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-1-5-21-1045960512-3948844814-3059691613-1000\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
6	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
1872	schtasks.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	1940	3793ec0ce7377024a044bfb4db49b2ca9c89726e39c05dfcc7bd30dd05812646.exe
Token: SeDebugPrivilege	3168	3793ec0ce7377024a044bfb4db49b2ca9c89726e39c05dfcc7bd30dd05812646.exe
Token: SeDebugPrivilege	5028	3793ec0ce7377024a044bfb4db49b2ca9c89726e39c05dfcc7bd30dd05812646.exe

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 1940 wrote to memory of 1872	1940	3793ec0ce7377024a044bfb4db49b2ca9c89726e39c05dfcc7bd30dd05812646.exe	94
PID 1940 wrote to memory of 1872	1940	3793ec0ce7377024a044bfb4db49b2ca9c89726e39c05dfcc7bd30dd05812646.exe	94

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⤵
- Checks computer location settings
- Drops startup file
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1940
- 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:1872

C:\Users\Admin\AppData\Roaming\3793ec0ce7377024a044bfb4db49b2ca9c89726e39c05dfcc7bd30dd05812646.exe
C:\Users\Admin\AppData\Roaming\3793ec0ce7377024a044bfb4db49b2ca9c89726e39c05dfcc7bd30dd05812646.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:3168

C:\Users\Admin\AppData\Roaming\3793ec0ce7377024a044bfb4db49b2ca9c89726e39c05dfcc7bd30dd05812646.exe
C:\Users\Admin\AppData\Roaming\3793ec0ce7377024a044bfb4db49b2ca9c89726e39c05dfcc7bd30dd05812646.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:5028

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

2

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\3793ec0ce7377024a044bfb4db49b2ca9c89726e39c05dfcc7bd30dd05812646.exe.log

Filesize
654B

MD5
2ff39f6c7249774be85fd60a8f9a245e

SHA1
684ff36b31aedc1e587c8496c02722c6698c1c4e

SHA256
e1b91642d85d98124a6a31f710e137ab7fd90dec30e74a05ab7fcf3b7887dced

SHA512
1d7e8b92ef4afd463d62cfa7e8b9d1799db5bf2a263d3cd7840df2e0a1323d24eb595b5f8eb615c6cb15f9e3a7b4fc99f8dd6a3d34479222e966ec708998aed1

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

Filesize
47KB

MD5
a56eb91e02fa5d139def4bf6f952ca7c

SHA1
9232c055aba6eb4cae8d85e5eef78582857cb012

SHA256
3793ec0ce7377024a044bfb4db49b2ca9c89726e39c05dfcc7bd30dd05812646

SHA512
3ef2f95369a52208ca6690fab9966d41165189f401ef57118f9cf661a530126a76d4cf1e5773528204d2979e44a94f6f8bdb137ba0157648da2f243d3ef7e8bc

Download Submit
memory/1940-0-0x00007FF8E8383000-0x00007FF8E8385000-memory.dmp

Filesize
8KB

Download
memory/1940-1-0x0000000000CE0000-0x0000000000CF2000-memory.dmp

Filesize
72KB

Download
memory/1940-3-0x00007FF8E8380000-0x00007FF8E8E41000-memory.dmp

Filesize
10.8MB

Download
memory/1940-7-0x00007FF8E8380000-0x00007FF8E8E41000-memory.dmp

Filesize
10.8MB

Download
memory/3168-10-0x00007FF8E8380000-0x00007FF8E8E41000-memory.dmp

Filesize
10.8MB

Download
memory/3168-12-0x00007FF8E8380000-0x00007FF8E8E41000-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