xworm | d2c8b31ed90c86ec267b673178ce22b36096ff8d705cbf9b5fa8ed4bac87550b

General

Target

17112024_0044_twBkX.js
Size

199KB
MD5

4ceb1057e744898bc02ffe2a9daa061a
SHA1

ccc89e9d665bc204347fbc7346957ed65ef983ba
SHA256

d2c8b31ed90c86ec267b673178ce22b36096ff8d705cbf9b5fa8ed4bac87550b
SHA512

3a71dba04527b03bb0ee1384f92b33eaa3de7bb3f1521997fd3151ef9ce553bfb5608054919b37c35f0f6f611acf59805949e586e52e3ca2cfc85e57f246c87a
SSDEEP

6144:PsnbkwFgwHtYdNCI8UpzdKxJzyU+JnkdTm6YDwDB:jNCzxpDB

Score

10^/10

xworm discovery execution rat trojan

Malware Config

Extracted

Family

xworm

Version

5.0

C2

185.162.75.19:7000

Mutex

AyJZQz7cchpO5oie

Attributes

install_file
USB.exe
telegram
https://api.telegram.org/bot6460930418:AAGMLktYHOrDqJ5cDoT5GtLWliQfxKax0DI/sendMessage?chat_id=6746471576

aes.plain

Signatures

Detect Xworm Payload 2 IoCs

resource	yara_rule
behavioral2/memory/3184-17-0x00000000557D0000-0x00000000557E6000-memory.dmp	family_xworm
behavioral2/memory/3184-20-0x00000000557D0000-0x00000000557E2000-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 3 IoCs

Using powershell.exe command.

execution

PowerShell

T1059.001

pid	Process
1668	powershell.exe
3680	powershell.exe
3540	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-1-5-21-2437139445-1151884604-3026847218-1000\Control Panel\International\Geo\Nation	wscript.exe

Drops startup file 1 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\myscript.lnk	wscript.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1668 set thread context of 3184	1668	powershell.exe	86

Command and Scripting Interpreter: JavaScript 1 TTPs
execution

JavaScript
T1059.007
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	aspnet_regbrowsers.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
3184	aspnet_regbrowsers.exe

Suspicious behavior: EnumeratesProcesses 7 IoCs

pid	Process
1668	powershell.exe
1668	powershell.exe
3680	powershell.exe
3680	powershell.exe
3540	powershell.exe
3540	powershell.exe
3184	aspnet_regbrowsers.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

description	pid	Process
Token: SeDebugPrivilege	1668	powershell.exe
Token: SeDebugPrivilege	3184	aspnet_regbrowsers.exe
Token: SeDebugPrivilege	3680	powershell.exe
Token: SeDebugPrivilege	3540	powershell.exe
Token: SeDebugPrivilege	3184	aspnet_regbrowsers.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3184	aspnet_regbrowsers.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 1020 wrote to memory of 3948	1020	wscript.exe	83
PID 1020 wrote to memory of 3948	1020	wscript.exe	83
PID 3948 wrote to memory of 1668	3948	cmd.exe	85
PID 3948 wrote to memory of 1668	3948	cmd.exe	85
PID 1668 wrote to memory of 3184	1668	powershell.exe	86
PID 1668 wrote to memory of 3184	1668	powershell.exe	86
PID 1668 wrote to memory of 3184	1668	powershell.exe	86
PID 1668 wrote to memory of 3184	1668	powershell.exe	86
PID 1668 wrote to memory of 3184	1668	powershell.exe	86
PID 1668 wrote to memory of 3184	1668	powershell.exe	86
PID 1668 wrote to memory of 3184	1668	powershell.exe	86
PID 1668 wrote to memory of 3184	1668	powershell.exe	86
PID 3184 wrote to memory of 3680	3184	aspnet_regbrowsers.exe	94
PID 3184 wrote to memory of 3680	3184	aspnet_regbrowsers.exe	94
PID 3184 wrote to memory of 3680	3184	aspnet_regbrowsers.exe	94
PID 3184 wrote to memory of 3540	3184	aspnet_regbrowsers.exe	99
PID 3184 wrote to memory of 3540	3184	aspnet_regbrowsers.exe	99
PID 3184 wrote to memory of 3540	3184	aspnet_regbrowsers.exe	99

C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\17112024_0044_twBkX.js
1⤵
- Checks computer location settings
- Drops startup file
- Suspicious use of WriteProcessMemory
PID:1020
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /c "powershell.exe -ExecutionPolicy Bypass -File "C:\Users\Admin\AppData\Roaming\UPDATE.ps1""
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3948
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    powershell.exe -ExecutionPolicy Bypass -File "C:\Users\Admin\AppData\Roaming\UPDATE.ps1"
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:1668
  - - C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_regbrowsers.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_regbrowsers.exe"
      4⤵
      System Location Discovery: System Language Discovery
      Suspicious behavior: AddClipboardFormatListener
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of SetWindowsHookEx
      Suspicious use of WriteProcessMemory
      PID:3184
    - - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_regbrowsers.exe'
        5⤵
        Command and Scripting Interpreter: PowerShell
        System Location Discovery: System Language Discovery
        Suspicious behavior: EnumeratesProcesses
        Suspicious use of AdjustPrivilegeToken
        
        PID:3680
    - - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'aspnet_regbrowsers.exe'
        5⤵
        Command and Scripting Interpreter: PowerShell
        System Location Discovery: System Language Discovery
        Suspicious behavior: EnumeratesProcesses
        Suspicious use of AdjustPrivilegeToken
        
        PID:3540

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

2

T1059

JavaScript

1

T1059.007

PowerShell

1

T1059.001

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log

Filesize
2KB

MD5
968cb9309758126772781b83adb8a28f

SHA1
8da30e71accf186b2ba11da1797cf67f8f78b47c

SHA256
92099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a

SHA512
4bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3

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

Filesize
1KB

MD5
a2b24af1492f112d2e53cb7415fda39f

SHA1
dbfcee57242a14b60997bd03379cc60198976d85

SHA256
fa05674c1db3386cf01ba1db5a3e9aeb97e15d1720d82988f573bf9743adc073

SHA512
9919077b8e5c7a955682e9a83f6d7ab34ac6a10a3d65af172734d753a48f7604a95739933b8680289c94b4e271b27c775d015b8d9678db277f498d8450b8aff0

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

Filesize
18KB

MD5
d5bde926e657169ec7fbad21220dc925

SHA1
61e46a45f0f4ff7e433285baf6678de9d3c8a328

SHA256
d583eb2f50d82e416e57e1c0998f1974eaa4747fcf5644ca852a8c0913b0a6b5

SHA512
3b853dc9f8d717ffa6036dcaa3f416b3aaffd34aff36b64673d993ea19c189c2a5ccdb055e9a374353ecec3b5fca57a4dd29a2b85fd42ea959d9026ba0bdc35e

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_uzwzkftb.gyr.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Roaming\UPDATE.ps1

Filesize
196KB

MD5
67ea1d562d1ed27916829a569dbc7fb5

SHA1
7d083620f91219c67b7e0a2925a3cb8c987d00ee

SHA256
61b54b21f003b1133e63b76fe99a0750303e17a7cc93ea4535c5533b028b1781

SHA512
5d03188a7e5e3fd5f9702b9ac2255cc8d5f23dc0d101f5ffb84d411d0c89021af704383f8f2ee88af3a696a7576b8a338fa4140d9396ff6a6e299f1b511d39b4

Download Submit
memory/1668-21-0x00007FF909130000-0x00007FF909BF1000-memory.dmp

Filesize
10.8MB

Download
memory/1668-16-0x00007FF909130000-0x00007FF909BF1000-memory.dmp

Filesize
10.8MB

Download
memory/1668-3-0x00000259499C0000-0x00000259499E2000-memory.dmp

Filesize
136KB

Download
memory/1668-2-0x00007FF909133000-0x00007FF909135000-memory.dmp

Filesize
8KB

Download
memory/1668-15-0x0000025949B60000-0x0000025949B8A000-memory.dmp

Filesize
168KB

Download
memory/1668-13-0x00007FF909130000-0x00007FF909BF1000-memory.dmp

Filesize
10.8MB

Download
memory/3184-20-0x00000000557D0000-0x00000000557E2000-memory.dmp

Filesize
72KB

Download
memory/3184-89-0x0000000006060000-0x00000000060F2000-memory.dmp

Filesize
584KB

Download
memory/3184-88-0x0000000006580000-0x0000000006B24000-memory.dmp

Filesize
5.6MB

Download
memory/3184-90-0x0000000006050000-0x000000000605A000-memory.dmp

Filesize
40KB

Download
memory/3184-22-0x0000000005670000-0x000000000570C000-memory.dmp

Filesize
624KB

Download
memory/3184-17-0x00000000557D0000-0x00000000557E6000-memory.dmp

Filesize
88KB

Download
memory/3540-77-0x000000006FBB0000-0x000000006FBFC000-memory.dmp

Filesize
304KB

Download
memory/3540-71-0x00000000062D0000-0x0000000006624000-memory.dmp

Filesize
3.3MB

Download
memory/3680-41-0x0000000006050000-0x0000000006082000-memory.dmp

Filesize
200KB

Download
memory/3680-60-0x0000000006FF0000-0x0000000007004000-memory.dmp

Filesize
80KB

Download
memory/3680-42-0x000000006FBB0000-0x000000006FBFC000-memory.dmp

Filesize
304KB

Download
memory/3680-52-0x0000000006C50000-0x0000000006C6E000-memory.dmp

Filesize
120KB

Download
memory/3680-53-0x0000000006C70000-0x0000000006D13000-memory.dmp

Filesize
652KB

Download
memory/3680-54-0x00000000073F0000-0x0000000007A6A000-memory.dmp

Filesize
6.5MB

Download
memory/3680-55-0x0000000006DB0000-0x0000000006DCA000-memory.dmp

Filesize
104KB

Download
memory/3680-56-0x0000000006E20000-0x0000000006E2A000-memory.dmp

Filesize
40KB

Download
memory/3680-57-0x0000000007030000-0x00000000070C6000-memory.dmp

Filesize
600KB

Download
memory/3680-58-0x0000000006FB0000-0x0000000006FC1000-memory.dmp

Filesize
68KB

Download
memory/3680-59-0x0000000006FE0000-0x0000000006FEE000-memory.dmp

Filesize
56KB

Download
memory/3680-40-0x0000000005AC0000-0x0000000005B0C000-memory.dmp

Filesize
304KB

Download
memory/3680-61-0x00000000070F0000-0x000000000710A000-memory.dmp

Filesize
104KB

Download
memory/3680-62-0x00000000070D0000-0x00000000070D8000-memory.dmp

Filesize
32KB

Download
memory/3680-39-0x0000000005A80000-0x0000000005A9E000-memory.dmp

Filesize
120KB

Download
memory/3680-37-0x00000000056E0000-0x0000000005A34000-memory.dmp

Filesize
3.3MB

Download
memory/3680-27-0x0000000005460000-0x00000000054C6000-memory.dmp

Filesize
408KB

Download
memory/3680-26-0x0000000004C70000-0x0000000004CD6000-memory.dmp

Filesize
408KB

Download
memory/3680-25-0x0000000004AD0000-0x0000000004AF2000-memory.dmp

Filesize
136KB

Download
memory/3680-24-0x0000000004E30000-0x0000000005458000-memory.dmp

Filesize
6.2MB

Download
memory/3680-23-0x0000000000CE0000-0x0000000000D16000-memory.dmp

Filesize
216KB

Download

Analysis

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