xworm | 238bd89de11cbe6b00e7bf57f13863394bed494b73d09570011f27b87270b51a

General

Target

238bd89de11cbe6b00e7bf57f13863394bed494b73d09570011f27b87270b51a.exe
Size

7.7MB
MD5

027ad6a104d074597068c1781cc0c90d
SHA1

b489c6f4d29db588ecfc65df7ea92d6c23de4a20
SHA256

238bd89de11cbe6b00e7bf57f13863394bed494b73d09570011f27b87270b51a
SHA512

0e3beecff23c8d426d859758b5c9aa4490e5d47ea69e4301c73fe499bd6535ec8dfe22dae552c8e14203d78768cd2ccfb70f78e876de2ba4b2532cf502b40e4f
SSDEEP

196608:xKLCFU/jHq/puROyhxeyOC7+oiRkbtejBe5:xmq/pkOYxehohbt

Score

10^/10

xworm execution persistence rat trojan

Malware Config

Extracted

Family

xworm

Version

5.0

C2

127.0.0.1:18194

soon-logical.gl.at.ply.gg:18194

Mutex

APoxCrOmNOvTLB4L

Attributes

Install_directory
%Userprofile%
install_file
chrome.exe

aes.plain

Signatures

Detect Xworm Payload 2 IoCs

resource	yara_rule
behavioral2/files/0x000a000000023b98-18.dat	family_xworm
behavioral2/memory/4420-28-0x00000000006F0000-0x0000000000700000-memory.dmp	family_xworm

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

Command and Scripting Interpreter: PowerShell 1 TTPs 4 IoCs

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

pid	Process
4244	powershell.exe
4972	powershell.exe
4072	powershell.exe
4148	powershell.exe

Checks computer location settings 2 TTPs 2 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-1-5-21-3442511616-637977696-3186306149-1000\Control Panel\International\Geo\Nation	238bd89de11cbe6b00e7bf57f13863394bed494b73d09570011f27b87270b51a.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\Control Panel\International\Geo\Nation	start.exe

Drops startup file 2 IoCs

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

Executes dropped EXE 2 IoCs

pid	Process
4120	Xworm V5.6.exe
4420	start.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-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\chrome = "C:\\Users\\Admin\\chrome.exe"	start.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 9 IoCs

pid	Process
4244	powershell.exe
4244	powershell.exe
4972	powershell.exe
4972	powershell.exe
4072	powershell.exe
4072	powershell.exe
4148	powershell.exe
4148	powershell.exe
4420	start.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeDebugPrivilege	4420	start.exe
Token: SeDebugPrivilege	4244	powershell.exe
Token: SeDebugPrivilege	4972	powershell.exe
Token: SeDebugPrivilege	4072	powershell.exe
Token: SeDebugPrivilege	4148	powershell.exe
Token: SeDebugPrivilege	4420	start.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4420	start.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 620 wrote to memory of 4120	620	238bd89de11cbe6b00e7bf57f13863394bed494b73d09570011f27b87270b51a.exe	82
PID 620 wrote to memory of 4120	620	238bd89de11cbe6b00e7bf57f13863394bed494b73d09570011f27b87270b51a.exe	82
PID 620 wrote to memory of 4420	620	238bd89de11cbe6b00e7bf57f13863394bed494b73d09570011f27b87270b51a.exe	83
PID 620 wrote to memory of 4420	620	238bd89de11cbe6b00e7bf57f13863394bed494b73d09570011f27b87270b51a.exe	83
PID 4420 wrote to memory of 4244	4420	start.exe	84
PID 4420 wrote to memory of 4244	4420	start.exe	84
PID 4420 wrote to memory of 4972	4420	start.exe	86
PID 4420 wrote to memory of 4972	4420	start.exe	86
PID 4420 wrote to memory of 4072	4420	start.exe	88
PID 4420 wrote to memory of 4072	4420	start.exe	88
PID 4420 wrote to memory of 4148	4420	start.exe	90
PID 4420 wrote to memory of 4148	4420	start.exe	90

C:\Users\Admin\AppData\Local\Temp\238bd89de11cbe6b00e7bf57f13863394bed494b73d09570011f27b87270b51a.exe
"C:\Users\Admin\AppData\Local\Temp\238bd89de11cbe6b00e7bf57f13863394bed494b73d09570011f27b87270b51a.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:620
- C:\Users\Admin\AppData\Local\Temp\Xworm V5.6.exe
  "C:\Users\Admin\AppData\Local\Temp\Xworm V5.6.exe"
  2⤵
  - Executes dropped EXE
  PID:4120
- C:\Users\Admin\AppData\Local\Temp\start.exe
  "C:\Users\Admin\AppData\Local\Temp\start.exe"
  2⤵
  - 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:4420
- - 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\start.exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:4244
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'start.exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:4972
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Admin\chrome.exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:4072
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'chrome.exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:4148

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

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\powershell.exe.log

Filesize
2KB

MD5
d85ba6ff808d9e5444a4b369f5bc2730

SHA1
31aa9d96590fff6981b315e0b391b575e4c0804a

SHA256
84739c608a73509419748e4e20e6cc4e1846056c3fe1929a8300d5a1a488202f

SHA512
8c414eb55b45212af385accc16d9d562adba2123583ce70d22b91161fe878683845512a78f04dedd4ea98ed9b174dbfa98cf696370598ad8e6fbd1e714f1f249

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

Filesize
944B

MD5
2979eabc783eaca50de7be23dd4eafcf

SHA1
d709ce5f3a06b7958a67e20870bfd95b83cad2ea

SHA256
006cca90e78fbb571532a83082ac6712721a34ea4b21f490058ffb3f521f4903

SHA512
92bc433990572d9427d0c93eef9bd1cc23fa00ed60dd0c9c983d87d3421e02ce3f156c6f88fe916ef6782dbf185cbce083bc0094f8c527f302be6a37d1c53aba

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

Filesize
944B

MD5
da5c82b0e070047f7377042d08093ff4

SHA1
89d05987cd60828cca516c5c40c18935c35e8bd3

SHA256
77a94ef8c4258445d538a6006ffadb05afdf888f6f044e1e5466b981a07f16c5

SHA512
7360311a3c97b73dd3f6d7179cd979e0e20d69f380d38292447e17e369087d9dd5acb66cd0cbdd95ac4bfb16e5a1b86825f835a8d45b14ea9812102cff59704b

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

Filesize
944B

MD5
fd98baf5a9c30d41317663898985593b

SHA1
ea300b99f723d2429d75a6c40e0838bf60f17aad

SHA256
9d97a5bbc88fdcceac25f293383f7e5ce242675460ffbfb2ee9090870c034e96

SHA512
bf4dbbd671b5d7afb326622a7c781f150860294d3dba7160330046c258c84a15981c70e50d84dc7faaa7cc8b8c90bf8df818b3f2d3806a8a3671dfe5e38fe7b0

Download Submit
C:\Users\Admin\AppData\Local\Temp\Xworm V5.6.exe

Filesize
14.9MB

MD5
56ccb739926a725e78a7acf9af52c4bb

SHA1
5b01b90137871c3c8f0d04f510c4d56b23932cbc

SHA256
90f58865f265722ab007abb25074b3fc4916e927402552c6be17ef9afac96405

SHA512
2fee662bc4a1a36ce7328b23f991fa4a383b628839e403d6eb6a9533084b17699a6c939509867a86e803aafef2f9def98fa9305b576dad754aa7f599920c19a1

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_4vstorfh.3xk.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\start.exe

Filesize
39KB

MD5
51e4348a35c9b40b0136fa204442f9c2

SHA1
aea47a3a717ca9cce49966093def7d8f5a53709a

SHA256
a8047efe920772b13508683a7d80de379b0cf2dc40b39a9cd37f949de6a90479

SHA512
f15353f1b29ead57efe865935ef0cbd9efa2f0e81e47a92993279a59ea4174fde1e9bb2546c35deda6cfa641cfa0ecd58f8a2f6006f0589ce95553d7debfa3bd

Download Submit
memory/620-27-0x00007FFEE8970000-0x00007FFEE9431000-memory.dmp

Filesize
10.8MB

Download
memory/620-0-0x00007FFEE8973000-0x00007FFEE8975000-memory.dmp

Filesize
8KB

Download
memory/620-2-0x00007FFEE8970000-0x00007FFEE9431000-memory.dmp

Filesize
10.8MB

Download
memory/620-1-0x0000000000510000-0x0000000000CC6000-memory.dmp

Filesize
7.7MB

Download
memory/4120-30-0x0000017CB8170000-0x0000017CB9058000-memory.dmp

Filesize
14.9MB

Download
memory/4120-22-0x00007FFEE8970000-0x00007FFEE9431000-memory.dmp

Filesize
10.8MB

Download
memory/4120-82-0x00007FFEE8970000-0x00007FFEE9431000-memory.dmp

Filesize
10.8MB

Download
memory/4244-36-0x000001BB66480000-0x000001BB664A2000-memory.dmp

Filesize
136KB

Download
memory/4420-29-0x00007FFEE8970000-0x00007FFEE9431000-memory.dmp

Filesize
10.8MB

Download
memory/4420-28-0x00000000006F0000-0x0000000000700000-memory.dmp

Filesize
64KB

Download
memory/4420-81-0x00007FFEE8970000-0x00007FFEE9431000-memory.dmp

Filesize
10.8MB

Download
memory/4420-83-0x00007FFEE8970000-0x00007FFEE9431000-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