xworm | d247cef9a16acfbe133b01295412093b56ef0d26d8a10f6e9b72cb31d6e8db10

General

Target

d247cef9a16acfbe133b01295412093b56ef0d26d8a10f6e9b72cb31d6e8db10.exe
Size

292KB
MD5

a25ea5ab2a959e8fbefe0724f1bb5b5b
SHA1

49208ffd7c4a5a6df5336f1269f2fa7aeef5fe18
SHA256

d247cef9a16acfbe133b01295412093b56ef0d26d8a10f6e9b72cb31d6e8db10
SHA512

4870b56c286516bf97e4ca8cd232a5978f423c2d3a971218866ad8ce50e68fd382b7d97f5fe8fb443a99d5d99971f75a09524526536e292d258831abd12d88b4
SSDEEP

3072:MpkJuuEpKi6m/PJivSaAFOg7lkjcWVig058YbEASbod9btH:

Score

10^/10

xworm persistence rat trojan

Malware Config

Extracted

Family

xworm

C2

23.ip.gl.ply.gg:7000

Attributes

Install_directory
%Public%
install_file
svchost.exe

Signatures

Detect Xworm Payload 2 IoCs

resource	yara_rule
behavioral2/files/0x000d000000023b6e-8.dat	family_xworm
behavioral2/memory/3200-10-0x00000000002A0000-0x00000000002B8000-memory.dmp	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-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation	.keepme

Drops startup file 2 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\svchost.lnk	.keepme
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\svchost.lnk	.keepme

Executes dropped EXE 3 IoCs

pid	Process
3200	.keepme
4328	svchost.exe
788	svchost.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-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\svchost = "C:\\Users\\Public\\svchost.exe"	.keepme

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
9	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
1676	schtasks.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
3200	.keepme

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	3200	.keepme
Token: SeDebugPrivilege	3200	.keepme
Token: SeDebugPrivilege	4328	svchost.exe
Token: SeDebugPrivilege	788	svchost.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3200	.keepme

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1052 wrote to memory of 608	1052	d247cef9a16acfbe133b01295412093b56ef0d26d8a10f6e9b72cb31d6e8db10.exe	85
PID 1052 wrote to memory of 608	1052	d247cef9a16acfbe133b01295412093b56ef0d26d8a10f6e9b72cb31d6e8db10.exe	85
PID 608 wrote to memory of 3200	608	cmd.exe	86
PID 608 wrote to memory of 3200	608	cmd.exe	86
PID 3200 wrote to memory of 1676	3200	.keepme	95
PID 3200 wrote to memory of 1676	3200	.keepme	95

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\d247cef9a16acfbe133b01295412093b56ef0d26d8a10f6e9b72cb31d6e8db10.exe
"C:\Users\Admin\AppData\Local\Temp\d247cef9a16acfbe133b01295412093b56ef0d26d8a10f6e9b72cb31d6e8db10.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1052
- C:\Windows\SYSTEM32\cmd.exe
  "cmd.exe" /c "C:\Users\Admin\AppData\Local\Temp\.shhh.bat" && exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:608
- - C:\Users\Admin\AppData\Local\Temp\.keepme
    "C:\Users\Admin\AppData\Local\Temp\.keepme"
    3⤵
    - Checks computer location settings
    - Drops startup file
    - Executes dropped EXE
    - Adds Run key to start application
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:3200
  - - C:\Windows\System32\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "svchost" /tr "C:\Users\Public\svchost.exe"
      4⤵
      Scheduled Task/Job: Scheduled Task
      PID:1676

C:\Users\Public\svchost.exe
C:\Users\Public\svchost.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:4328

C:\Users\Public\svchost.exe
C:\Users\Public\svchost.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:788

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\svchost.exe.log

Filesize
654B

MD5
2ff39f6c7249774be85fd60a8f9a245e

SHA1
684ff36b31aedc1e587c8496c02722c6698c1c4e

SHA256
e1b91642d85d98124a6a31f710e137ab7fd90dec30e74a05ab7fcf3b7887dced

SHA512
1d7e8b92ef4afd463d62cfa7e8b9d1799db5bf2a263d3cd7840df2e0a1323d24eb595b5f8eb615c6cb15f9e3a7b4fc99f8dd6a3d34479222e966ec708998aed1

Download Submit
C:\Users\Admin\AppData\Local\Temp\.keepme

Filesize
71KB

MD5
5dcabac99e75c26966103e37d2d34fff

SHA1
ee5ff56baaa7c854034a1952df3aebcb9051e2d9

SHA256
889f0dbaf5641f17b2fff411473f75c62b551d11bedf4bb16b191f78f38a99e2

SHA512
ec38e9bee65d3ad6ff31c1381a7e7b646544c44c3c944f387e02b7d1825cadf4fe0dfd7d914fa7872f8ba8b2862c0861eae91fce129ef30299afda639681f127

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

Filesize
57B

MD5
cbade861cdb94418af59f05e2c2ba9d2

SHA1
b52c1e9152f513e1c5bfd0a7120d8eab5715c6fa

SHA256
690a862f8ba36d42573f9080aecd43eb6744b842cb382cee2bafdc493dae1ed4

SHA512
fbdea30ef08dfde692d7d55e6b847a49448f095ac0dc7f4cb2aa87d1a965f681397db9ff5f25beb9ad48bf61578ccefdf7191de12ea9e8faba376bca0fd89d70

Download Submit
memory/1052-0-0x00007FFC72ED3000-0x00007FFC72ED5000-memory.dmp

Filesize
8KB

Download
memory/1052-1-0x0000000000EA0000-0x0000000000EF0000-memory.dmp

Filesize
320KB

Download
memory/3200-10-0x00000000002A0000-0x00000000002B8000-memory.dmp

Filesize
96KB

Download
memory/3200-11-0x00007FFC72ED0000-0x00007FFC73991000-memory.dmp

Filesize
10.8MB

Download
memory/3200-12-0x00007FFC72ED0000-0x00007FFC73991000-memory.dmp

Filesize
10.8MB

Download
memory/3200-17-0x00007FFC72ED0000-0x00007FFC73991000-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