xworm | 153825af8babb75361f4af359bfdd5e95cbdc7f263db5c4e70ac1da8f36bc564

General

Target

ExodusInject.exe
Size

227KB
MD5

38b7704d2b199559ada166401f1d51c1
SHA1

3376eec35cd4616ba8127b976a8667e7a0aac87d
SHA256

153825af8babb75361f4af359bfdd5e95cbdc7f263db5c4e70ac1da8f36bc564
SHA512

07b828073c8f80c5498501c8f64decb5effa702c8bc3d60a2f7d5de36d493b469cbbf413fb0c92c0aadd6ee139bfb75f3b9e936230212d42e57d2ec5671e9b27
SSDEEP

3072:iBIVzZQgudhV3mypQgbNjcEHBAnpK37nXY8q004Q78ePsi74tyJhbgKL/VoilIBS:Ur3mypQX8mOeP/9/VtLGH+8l

Score

10^/10

xworm execution rat trojan

Malware Config

Extracted

Family

xworm

Version

5.0

C2

137.184.74.73:5000

Mutex

Y2rnj2CSRObOXXLb

Attributes

Install_directory
%ProgramData%
install_file
System.exe

aes.plain

Signatures

Detect Xworm Payload 1 IoCs

resource	yara_rule
behavioral1/memory/320-30-0x00000000003C0000-0x00000000003CE000-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 2 IoCs

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

execution

PowerShell

T1059.001

pid	Process
2172	powershell.exe
2644	powershell.exe

Deletes itself 1 IoCs

pid	Process
2472	cmd.exe

Drops startup file 2 IoCs

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

Executes dropped EXE 4 IoCs

pid	Process
320	AggregatorHost.exe
1324	System.exe
2476	System.exe
1892	System.exe

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

System Information Discovery
T1082

Delays execution with timeout.exe 1 IoCs

defense_evasion

pid	Process
848	timeout.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
2368	schtasks.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2172	powershell.exe
2644	powershell.exe

Suspicious use of AdjustPrivilegeToken 11 IoCs

description	pid	Process
Token: SeDebugPrivilege	1012	ExodusInject.exe
Token: SeBackupPrivilege	2436	vssvc.exe
Token: SeRestorePrivilege	2436	vssvc.exe
Token: SeAuditPrivilege	2436	vssvc.exe
Token: SeDebugPrivilege	2172	powershell.exe
Token: SeDebugPrivilege	2644	powershell.exe
Token: SeDebugPrivilege	320	AggregatorHost.exe
Token: SeDebugPrivilege	320	AggregatorHost.exe
Token: SeDebugPrivilege	1324	System.exe
Token: SeDebugPrivilege	2476	System.exe
Token: SeDebugPrivilege	1892	System.exe

Suspicious use of WriteProcessMemory 27 IoCs

description	pid	Process	procid_target
PID 1012 wrote to memory of 2172	1012	ExodusInject.exe	34
PID 1012 wrote to memory of 2172	1012	ExodusInject.exe	34
PID 1012 wrote to memory of 2172	1012	ExodusInject.exe	34
PID 1012 wrote to memory of 2644	1012	ExodusInject.exe	36
PID 1012 wrote to memory of 2644	1012	ExodusInject.exe	36
PID 1012 wrote to memory of 2644	1012	ExodusInject.exe	36
PID 1012 wrote to memory of 2472	1012	ExodusInject.exe	39
PID 1012 wrote to memory of 2472	1012	ExodusInject.exe	39
PID 1012 wrote to memory of 2472	1012	ExodusInject.exe	39
PID 2472 wrote to memory of 848	2472	cmd.exe	41
PID 2472 wrote to memory of 848	2472	cmd.exe	41
PID 2472 wrote to memory of 848	2472	cmd.exe	41
PID 856 wrote to memory of 320	856	taskeng.exe	42
PID 856 wrote to memory of 320	856	taskeng.exe	42
PID 856 wrote to memory of 320	856	taskeng.exe	42
PID 320 wrote to memory of 2368	320	AggregatorHost.exe	43
PID 320 wrote to memory of 2368	320	AggregatorHost.exe	43
PID 320 wrote to memory of 2368	320	AggregatorHost.exe	43
PID 856 wrote to memory of 1324	856	taskeng.exe	45
PID 856 wrote to memory of 1324	856	taskeng.exe	45
PID 856 wrote to memory of 1324	856	taskeng.exe	45
PID 856 wrote to memory of 2476	856	taskeng.exe	46
PID 856 wrote to memory of 2476	856	taskeng.exe	46
PID 856 wrote to memory of 2476	856	taskeng.exe	46
PID 856 wrote to memory of 1892	856	taskeng.exe	47
PID 856 wrote to memory of 1892	856	taskeng.exe	47
PID 856 wrote to memory of 1892	856	taskeng.exe	47

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
Uses Volume Shadow Copy service COM API
The Volume Shadow Copy service is used to manage backups/snapshots.
ransomware

C:\Users\Admin\AppData\Local\Temp\ExodusInject.exe
"C:\Users\Admin\AppData\Local\Temp\ExodusInject.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1012
- 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\AggregatorHost.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2172
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'AggregatorHost.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2644
- C:\Windows\system32\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmp3FCE.tmp.bat""
  2⤵
  - Deletes itself
  - Suspicious use of WriteProcessMemory
  PID:2472
- - C:\Windows\system32\timeout.exe
    timeout 3
    3⤵
    - Delays execution with timeout.exe
    PID:848

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2436

C:\Windows\system32\taskeng.exe
taskeng.exe {CA1CBD98-0458-40D4-A9CB-5FB83471E0CE} S-1-5-21-2703099537-420551529-3771253338-1000:XECUDNCD\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:856
- C:\Users\Admin\AppData\Roaming\AggregatorHost.exe
  C:\Users\Admin\AppData\Roaming\AggregatorHost.exe
  2⤵
  - Drops startup file
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:320
- - C:\Windows\System32\schtasks.exe
    "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "System" /tr "C:\ProgramData\System.exe"
    3⤵
    - Scheduled Task/Job: Scheduled Task
    PID:2368
- C:\ProgramData\System.exe
  C:\ProgramData\System.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:1324
- C:\ProgramData\System.exe
  C:\ProgramData\System.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:2476
- C:\ProgramData\System.exe
  C:\ProgramData\System.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:1892

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

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

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\Temp\tmp3FCE.tmp.bat

Filesize
164B

MD5
647fff08212bfff02008830e137d0414

SHA1
4e484746ce479d57bcb492216b232ce1213fe10e

SHA256
11334586d91211636d2eb4257fe0ebf67b08b625ae38057f24d1cb2a5553213a

SHA512
e7b32253f6ef4f2f4bf049360c989da7e394c72c62e460cdd7f23682c06c920878d02bfa9728081626344fc7c95a78076b1967575a170f41752759e514aa28ee

Download Submit
C:\Users\Admin\AppData\Roaming\AggregatorHost.exe

Filesize
227KB

MD5
38b7704d2b199559ada166401f1d51c1

SHA1
3376eec35cd4616ba8127b976a8667e7a0aac87d

SHA256
153825af8babb75361f4af359bfdd5e95cbdc7f263db5c4e70ac1da8f36bc564

SHA512
07b828073c8f80c5498501c8f64decb5effa702c8bc3d60a2f7d5de36d493b469cbbf413fb0c92c0aadd6ee139bfb75f3b9e936230212d42e57d2ec5671e9b27

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\590aee7bdd69b59b.customDestinations-ms

Filesize
7KB

MD5
f54d1eeb70629c149ac041f8bfb3785a

SHA1
4019f4af701d418bf24f201ee160776210e7e20f

SHA256
c528cd945b1664de4e4165079bdf5351b44bddd6276b9b7f3167d9140ffb944a

SHA512
d377ce00fb634149943d47d9b91214e86377e446ba0ef2bec013bdc1e85a5cb2f426d7b29a428356d74036348a0174eb44de52cdf865d4faaba192f6fe9f7cc9

Download Submit
memory/320-30-0x00000000003C0000-0x00000000003CE000-memory.dmp

Filesize
56KB

Download
memory/320-29-0x00000000012E0000-0x0000000001320000-memory.dmp

Filesize
256KB

Download
memory/1012-25-0x000007FEF6BF0000-0x000007FEF75DC000-memory.dmp

Filesize
9.9MB

Download
memory/1012-0-0x000007FEF6BF3000-0x000007FEF6BF4000-memory.dmp

Filesize
4KB

Download
memory/1012-1-0x00000000003D0000-0x0000000000410000-memory.dmp

Filesize
256KB

Download
memory/1012-39-0x000007FEF6BF0000-0x000007FEF75DC000-memory.dmp

Filesize
9.9MB

Download
memory/1324-38-0x0000000000EE0000-0x0000000000F20000-memory.dmp

Filesize
256KB

Download
memory/1892-45-0x0000000001150000-0x0000000001190000-memory.dmp

Filesize
256KB

Download
memory/2172-7-0x00000000020C0000-0x00000000020C8000-memory.dmp

Filesize
32KB

Download
memory/2172-6-0x000000001B510000-0x000000001B7F2000-memory.dmp

Filesize
2.9MB

Download
memory/2476-43-0x0000000001010000-0x0000000001050000-memory.dmp

Filesize
256KB

Download
memory/2644-14-0x0000000002240000-0x0000000002248000-memory.dmp

Filesize
32KB

Download
memory/2644-13-0x000000001B6F0000-0x000000001B9D2000-memory.dmp

Filesize
2.9MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads