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 3 IoCs

resource	yara_rule
behavioral1/files/0x000c000000012262-7.dat	family_xworm
behavioral1/memory/2136-10-0x0000000000040000-0x0000000000058000-memory.dmp	family_xworm
behavioral1/memory/1616-23-0x0000000001200000-0x0000000001218000-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 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
2136	.keepme
1616	svchost.exe
3044	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-1-5-21-3692679935-4019334568-335155002-1000\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
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
2512	schtasks.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2136	.keepme

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	2136	.keepme
Token: SeDebugPrivilege	2136	.keepme
Token: SeDebugPrivilege	1616	svchost.exe
Token: SeDebugPrivilege	3044	svchost.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2136	.keepme

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 2368 wrote to memory of 2464	2368	d247cef9a16acfbe133b01295412093b56ef0d26d8a10f6e9b72cb31d6e8db10.exe	32
PID 2368 wrote to memory of 2464	2368	d247cef9a16acfbe133b01295412093b56ef0d26d8a10f6e9b72cb31d6e8db10.exe	32
PID 2368 wrote to memory of 2464	2368	d247cef9a16acfbe133b01295412093b56ef0d26d8a10f6e9b72cb31d6e8db10.exe	32
PID 2464 wrote to memory of 2136	2464	cmd.exe	33
PID 2464 wrote to memory of 2136	2464	cmd.exe	33
PID 2464 wrote to memory of 2136	2464	cmd.exe	33
PID 2136 wrote to memory of 2512	2136	.keepme	35
PID 2136 wrote to memory of 2512	2136	.keepme	35
PID 2136 wrote to memory of 2512	2136	.keepme	35
PID 2616 wrote to memory of 1616	2616	taskeng.exe	38
PID 2616 wrote to memory of 1616	2616	taskeng.exe	38
PID 2616 wrote to memory of 1616	2616	taskeng.exe	38
PID 2616 wrote to memory of 3044	2616	taskeng.exe	39
PID 2616 wrote to memory of 3044	2616	taskeng.exe	39
PID 2616 wrote to memory of 3044	2616	taskeng.exe	39

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:2368
- C:\Windows\system32\cmd.exe
  "cmd.exe" /c "C:\Users\Admin\AppData\Local\Temp\.shhh.bat" && exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2464
- - C:\Users\Admin\AppData\Local\Temp\.keepme
    "C:\Users\Admin\AppData\Local\Temp\.keepme"
    3⤵
    - 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:2136
  - - 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:2512

C:\Windows\system32\taskeng.exe
taskeng.exe {BB60EE66-C804-419B-9249-D099D429AAB1} S-1-5-21-3692679935-4019334568-335155002-1000:BCXRJFKE\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:2616
- C:\Users\Public\svchost.exe
  C:\Users\Public\svchost.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:1616
- C:\Users\Public\svchost.exe
  C:\Users\Public\svchost.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:3044

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

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Downloads

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/1616-23-0x0000000001200000-0x0000000001218000-memory.dmp

Filesize
96KB

Download
memory/2136-10-0x0000000000040000-0x0000000000058000-memory.dmp

Filesize
96KB

Download
memory/2136-11-0x000007FEF5650000-0x000007FEF603C000-memory.dmp

Filesize
9.9MB

Download
memory/2136-12-0x000007FEF5650000-0x000007FEF603C000-memory.dmp

Filesize
9.9MB

Download
memory/2136-18-0x000007FEF5650000-0x000007FEF603C000-memory.dmp

Filesize
9.9MB

Download
memory/2136-19-0x000007FEF5650000-0x000007FEF603C000-memory.dmp

Filesize
9.9MB

Download
memory/2368-0-0x000007FEF5653000-0x000007FEF5654000-memory.dmp

Filesize
4KB

Download
memory/2368-1-0x0000000000070000-0x00000000000C0000-memory.dmp

Filesize
320KB

Download
memory/2368-17-0x000007FEF5653000-0x000007FEF5654000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads