xworm | 82f0fb933a96858aabe6b741c889611583a0a11132ee6ecd70909fc0aa6cf534

General

Target

XClient.exe
Size

65KB
MD5

f89900bee0847f4f1e23b1bfda0e7f24
SHA1

24dd536801cff4b3b92276a52a9280069290149a
SHA256

82f0fb933a96858aabe6b741c889611583a0a11132ee6ecd70909fc0aa6cf534
SHA512

bba995bfb14d6d79b8f4feb0934888d2e5d39d7c945cce2046e842a0c0240cc14a9998c3d18093c29ca36c840f580058518df341e0dca3f5452fdc7fcacdcc3a
SSDEEP

1536:/JPMoSzJ4aZfY0by1DLub8ldJJIrlXOF3+v/:BZcJm0WxSb8elXOhW/

Score

10^/10

xworm persistence rat trojan

Malware Config

Extracted

Family

xworm

C2

127.0.0.1:33920

original-taught.gl.at.ply.gg:33920

Attributes

Install_directory
%AppData%
install_file
FreePornHubPremium.exe

Signatures

Detect Xworm Payload 4 IoCs

resource	yara_rule
behavioral1/memory/2952-0-0x0000000000B00000-0x0000000000B16000-memory.dmp	family_xworm
behavioral1/files/0x000c000000012339-9.dat	family_xworm
behavioral1/memory/2480-16-0x0000000000D50000-0x0000000000D66000-memory.dmp	family_xworm
behavioral1/memory/320-20-0x00000000010E0000-0x00000000010F6000-memory.dmp	family_xworm

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

Drops startup file 2 IoCs

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

Executes dropped EXE 3 IoCs

pid	Process
2560	FreePornHubPremium.exe
2480	FreePornHubPremium.exe
320	FreePornHubPremium.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-1-5-21-2297530677-1229052932-2803917579-1000\Software\Microsoft\Windows\CurrentVersion\Run\FreePornHubPremium = "C:\\Users\\Admin\\AppData\\Roaming\\FreePornHubPremium.exe"	XClient.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

pid	Process
2980	schtasks.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2952	XClient.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

description	pid	Process
Token: SeDebugPrivilege	2952	XClient.exe
Token: SeDebugPrivilege	2952	XClient.exe
Token: SeDebugPrivilege	2560	FreePornHubPremium.exe
Token: SeDebugPrivilege	2480	FreePornHubPremium.exe
Token: SeDebugPrivilege	320	FreePornHubPremium.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2952	XClient.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2952 wrote to memory of 2980	2952	XClient.exe	28
PID 2952 wrote to memory of 2980	2952	XClient.exe	28
PID 2952 wrote to memory of 2980	2952	XClient.exe	28
PID 2744 wrote to memory of 2560	2744	taskeng.exe	32
PID 2744 wrote to memory of 2560	2744	taskeng.exe	32
PID 2744 wrote to memory of 2560	2744	taskeng.exe	32
PID 2744 wrote to memory of 2480	2744	taskeng.exe	35
PID 2744 wrote to memory of 2480	2744	taskeng.exe	35
PID 2744 wrote to memory of 2480	2744	taskeng.exe	35
PID 2744 wrote to memory of 320	2744	taskeng.exe	36
PID 2744 wrote to memory of 320	2744	taskeng.exe	36
PID 2744 wrote to memory of 320	2744	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\XClient.exe
"C:\Users\Admin\AppData\Local\Temp\XClient.exe"
1⤵
- Drops startup file
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2952
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "FreePornHubPremium" /tr "C:\Users\Admin\AppData\Roaming\FreePornHubPremium.exe"
  2⤵
  - Creates scheduled task(s)
  PID:2980

C:\Windows\system32\taskeng.exe
taskeng.exe {5D159933-903C-4A1E-9DF2-D4769763D44D} S-1-5-21-2297530677-1229052932-2803917579-1000:HKULBIBU\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:2744
- C:\Users\Admin\AppData\Roaming\FreePornHubPremium.exe
  C:\Users\Admin\AppData\Roaming\FreePornHubPremium.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:2560
- C:\Users\Admin\AppData\Roaming\FreePornHubPremium.exe
  C:\Users\Admin\AppData\Roaming\FreePornHubPremium.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:2480
- C:\Users\Admin\AppData\Roaming\FreePornHubPremium.exe
  C:\Users\Admin\AppData\Roaming\FreePornHubPremium.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:320

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

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

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\FreePornHubPremium.exe

Filesize
65KB

MD5
f89900bee0847f4f1e23b1bfda0e7f24

SHA1
24dd536801cff4b3b92276a52a9280069290149a

SHA256
82f0fb933a96858aabe6b741c889611583a0a11132ee6ecd70909fc0aa6cf534

SHA512
bba995bfb14d6d79b8f4feb0934888d2e5d39d7c945cce2046e842a0c0240cc14a9998c3d18093c29ca36c840f580058518df341e0dca3f5452fdc7fcacdcc3a

Download Submit
memory/320-22-0x000007FEF58E0000-0x000007FEF62CC000-memory.dmp

Filesize
9.9MB

Download
memory/320-21-0x000007FEF58E0000-0x000007FEF62CC000-memory.dmp

Filesize
9.9MB

Download
memory/320-20-0x00000000010E0000-0x00000000010F6000-memory.dmp

Filesize
88KB

Download
memory/2480-17-0x000007FEF58E0000-0x000007FEF62CC000-memory.dmp

Filesize
9.9MB

Download
memory/2480-18-0x000007FEF58E0000-0x000007FEF62CC000-memory.dmp

Filesize
9.9MB

Download
memory/2480-16-0x0000000000D50000-0x0000000000D66000-memory.dmp

Filesize
88KB

Download
memory/2560-11-0x000007FEF58E0000-0x000007FEF62CC000-memory.dmp

Filesize
9.9MB

Download
memory/2560-13-0x000007FEF58E0000-0x000007FEF62CC000-memory.dmp

Filesize
9.9MB

Download
memory/2952-7-0x000007FEF58E0000-0x000007FEF62CC000-memory.dmp

Filesize
9.9MB

Download
memory/2952-12-0x0000000000520000-0x00000000005A0000-memory.dmp

Filesize
512KB

Download
memory/2952-0-0x0000000000B00000-0x0000000000B16000-memory.dmp

Filesize
88KB

Download
memory/2952-6-0x0000000000520000-0x00000000005A0000-memory.dmp

Filesize
512KB

Download
memory/2952-1-0x000007FEF58E0000-0x000007FEF62CC000-memory.dmp

Filesize
9.9MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads