xworm | 3e8a75f5d894529a3edc6cf3fb49033d818d798e62f1d2df245408c823099e2a

General

Target

XClient.exe
Size

92KB
MD5

5ef9980677f25e6cb352360b525d7d86
SHA1

0d804249da416689682838fb37a3aeffe0babbc4
SHA256

3e8a75f5d894529a3edc6cf3fb49033d818d798e62f1d2df245408c823099e2a
SHA512

07239f774630ed398f8c6ef4c130fef6af14f9f05ad31a2eea6f4825ee381024841be3f24a6a97cb689755a4fef92aeabbc5ffcd11a2880953350e010e7541c4
SSDEEP

1536:Rbk9Xr6g05Hhx5yAIj1vwlbeSFGnP0L3B6m5O0QQjPOXw6a1GdS1EAd8IIR:C4NDoIlbdFGIGQjPOXUSgEA6IIR

Score

10^/10

xworm persistence rat trojan

Malware Config

Extracted

Family

xworm

C2

127.0.0.1:30287

cooking.gl.at.ply.gg:30287

Attributes

Install_directory
%Userprofile%
install_file
discord.exe

Signatures

Detect Xworm Payload 2 IoCs

resource	yara_rule
behavioral1/memory/572-0-0x0000000000630000-0x000000000064C000-memory.dmp	family_xworm
behavioral1/files/0x000900000002a9ff-69.dat	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\discord.lnk	XClient.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\discord.lnk	XClient.exe

Executes dropped EXE 1 IoCs

pid	Process
2764	discord.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-1-5-21-801878912-692986033-442676226-1000\Software\Microsoft\Windows\CurrentVersion\Run\discord = "C:\\Users\\Admin\\discord.exe"	XClient.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
1	ip-api.com

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
5020	schtasks.exe

Suspicious behavior: EnumeratesProcesses 9 IoCs

pid	Process
2268	powershell.exe
2268	powershell.exe
4676	powershell.exe
4676	powershell.exe
4776	powershell.exe
4776	powershell.exe
3868	powershell.exe
3868	powershell.exe
572	XClient.exe

Suspicious use of AdjustPrivilegeToken 7 IoCs

description	pid	Process
Token: SeDebugPrivilege	572	XClient.exe
Token: SeDebugPrivilege	2268	powershell.exe
Token: SeDebugPrivilege	4676	powershell.exe
Token: SeDebugPrivilege	4776	powershell.exe
Token: SeDebugPrivilege	3868	powershell.exe
Token: SeDebugPrivilege	572	XClient.exe
Token: SeDebugPrivilege	2764	discord.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
572	XClient.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 572 wrote to memory of 2268	572	XClient.exe	82
PID 572 wrote to memory of 2268	572	XClient.exe	82
PID 572 wrote to memory of 4676	572	XClient.exe	84
PID 572 wrote to memory of 4676	572	XClient.exe	84
PID 572 wrote to memory of 4776	572	XClient.exe	86
PID 572 wrote to memory of 4776	572	XClient.exe	86
PID 572 wrote to memory of 3868	572	XClient.exe	89
PID 572 wrote to memory of 3868	572	XClient.exe	89
PID 572 wrote to memory of 5020	572	XClient.exe	91
PID 572 wrote to memory of 5020	572	XClient.exe	91

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:572
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\XClient.exe'
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2268
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'XClient.exe'
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4676
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Admin\discord.exe'
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4776
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'discord.exe'
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3868
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "discord" /tr "C:\Users\Admin\discord.exe"
  2⤵
  - Creates scheduled task(s)
  PID:5020

C:\Users\Admin\discord.exe
C:\Users\Admin\discord.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:2764

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\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log

Filesize
2KB

MD5
627073ee3ca9676911bee35548eff2b8

SHA1
4c4b68c65e2cab9864b51167d710aa29ebdcff2e

SHA256
85b280a39fc31ba1e15fb06102a05b8405ff3b82feb181d4170f04e466dd647c

SHA512
3c5f6c03e253b83c57e8d6f0334187dbdcdf4fa549eecd36cbc1322dca6d3ca891dc6a019c49ec2eafb88f82d0434299c31e4dfaab123acb42e0546218f311fb

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
944B

MD5
d0a4a3b9a52b8fe3b019f6cd0ef3dad6

SHA1
fed70ce7834c3b97edbd078eccda1e5effa527cd

SHA256
21942e513f223fdad778348fbb20617dd29f986bccd87824c0ae7f15649f3f31

SHA512
1a66f837b4e7fb6346d0500aeacb44902fb8a239bce23416271263eba46fddae58a17075e188ae43eb516c841e02c87e32ebd73256c7cc2c0713d00c35f1761b

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
944B

MD5
050567a067ffea4eb40fe2eefebdc1ee

SHA1
6e1fb2c7a7976e0724c532449e97722787a00fec

SHA256
3952d5b543e5cb0cb84014f4ad9f5f1b7166f592d28640cbc3d914d0e6f41d2e

SHA512
341ad71ef7e850b10e229666312e4bca87a0ed9fe25ba4b0ab65661d5a0efa855db0592153106da07134d8fc2c6c0e44709bf38183c9a574a1fa543189971259

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
944B

MD5
781da0576417bf414dc558e5a315e2be

SHA1
215451c1e370be595f1c389f587efeaa93108b4c

SHA256
41a5aef8b0bbeea2766f40a7bba2c78322379f167c610f7055ccb69e7db030fe

SHA512
24e283aa30a2903ebe154dad49b26067a45e46fec57549ad080d3b9ec3f272044efaaed3822d067837f5521262192f466c47195ffe7f75f8c7c5dcf3159ea737

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_wgv542vo.44x.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\discord.exe

Filesize
92KB

MD5
5ef9980677f25e6cb352360b525d7d86

SHA1
0d804249da416689682838fb37a3aeffe0babbc4

SHA256
3e8a75f5d894529a3edc6cf3fb49033d818d798e62f1d2df245408c823099e2a

SHA512
07239f774630ed398f8c6ef4c130fef6af14f9f05ad31a2eea6f4825ee381024841be3f24a6a97cb689755a4fef92aeabbc5ffcd11a2880953350e010e7541c4

Download Submit
memory/572-1-0x00007FF8EF370000-0x00007FF8EFE32000-memory.dmp

Filesize
10.8MB

Download
memory/572-2-0x000000001B1E0000-0x000000001B1F0000-memory.dmp

Filesize
64KB

Download
memory/572-0-0x0000000000630000-0x000000000064C000-memory.dmp

Filesize
112KB

Download
memory/572-60-0x000000001B1E0000-0x000000001B1F0000-memory.dmp

Filesize
64KB

Download
memory/572-47-0x00007FF8EF370000-0x00007FF8EFE32000-memory.dmp

Filesize
10.8MB

Download
memory/2268-15-0x000001EABC450000-0x000001EABC460000-memory.dmp

Filesize
64KB

Download
memory/2268-18-0x00007FF8EF370000-0x00007FF8EFE32000-memory.dmp

Filesize
10.8MB

Download
memory/2268-11-0x000001EAD4AC0000-0x000001EAD4AE2000-memory.dmp

Filesize
136KB

Download
memory/2268-5-0x000001EABC450000-0x000001EABC460000-memory.dmp

Filesize
64KB

Download
memory/2268-4-0x000001EABC450000-0x000001EABC460000-memory.dmp

Filesize
64KB

Download
memory/2268-3-0x00007FF8EF370000-0x00007FF8EFE32000-memory.dmp

Filesize
10.8MB

Download
memory/2764-73-0x00007FF8EF370000-0x00007FF8EFE32000-memory.dmp

Filesize
10.8MB

Download
memory/2764-71-0x00007FF8EF370000-0x00007FF8EFE32000-memory.dmp

Filesize
10.8MB

Download
memory/3868-51-0x00007FF8EF370000-0x00007FF8EFE32000-memory.dmp

Filesize
10.8MB

Download
memory/3868-61-0x0000021D76F20000-0x0000021D76F30000-memory.dmp

Filesize
64KB

Download
memory/3868-64-0x00007FF8EF370000-0x00007FF8EFE32000-memory.dmp

Filesize
10.8MB

Download
memory/4676-34-0x00007FF8EF370000-0x00007FF8EFE32000-memory.dmp

Filesize
10.8MB

Download
memory/4676-30-0x00000119589A0000-0x00000119589B0000-memory.dmp

Filesize
64KB

Download
memory/4676-32-0x00000119589A0000-0x00000119589B0000-memory.dmp

Filesize
64KB

Download
memory/4676-31-0x00000119589A0000-0x00000119589B0000-memory.dmp

Filesize
64KB

Download
memory/4676-29-0x00007FF8EF370000-0x00007FF8EFE32000-memory.dmp

Filesize
10.8MB

Download
memory/4776-46-0x0000028DFF8C0000-0x0000028DFF8D0000-memory.dmp

Filesize
64KB

Download
memory/4776-48-0x0000028DFF8C0000-0x0000028DFF8D0000-memory.dmp

Filesize
64KB

Download
memory/4776-45-0x0000028DFF8C0000-0x0000028DFF8D0000-memory.dmp

Filesize
64KB

Download
memory/4776-50-0x00007FF8EF370000-0x00007FF8EFE32000-memory.dmp

Filesize
10.8MB

Download
memory/4776-44-0x00007FF8EF370000-0x00007FF8EFE32000-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