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
behavioral2/memory/3008-40-0x00000000012A0000-0x00000000012AE000-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
3612	powershell.exe
376	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-1-5-21-2278412438-3475196406-3686434223-1000\Control Panel\International\Geo\Nation	ExodusInject.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2278412438-3475196406-3686434223-1000\Control Panel\International\Geo\Nation	AggregatorHost.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
3008	AggregatorHost.exe
3376	System.exe
1800	System.exe
804	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
4784	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
4340	schtasks.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
376	powershell.exe
376	powershell.exe
3612	powershell.exe
3612	powershell.exe

Suspicious use of AdjustPrivilegeToken 11 IoCs

description	pid	Process
Token: SeDebugPrivilege	4936	ExodusInject.exe
Token: SeBackupPrivilege	2528	vssvc.exe
Token: SeRestorePrivilege	2528	vssvc.exe
Token: SeAuditPrivilege	2528	vssvc.exe
Token: SeDebugPrivilege	376	powershell.exe
Token: SeDebugPrivilege	3612	powershell.exe
Token: SeDebugPrivilege	3008	AggregatorHost.exe
Token: SeDebugPrivilege	3008	AggregatorHost.exe
Token: SeDebugPrivilege	3376	System.exe
Token: SeDebugPrivilege	1800	System.exe
Token: SeDebugPrivilege	804	System.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 4936 wrote to memory of 376	4936	ExodusInject.exe	93
PID 4936 wrote to memory of 376	4936	ExodusInject.exe	93
PID 4936 wrote to memory of 3612	4936	ExodusInject.exe	95
PID 4936 wrote to memory of 3612	4936	ExodusInject.exe	95
PID 4936 wrote to memory of 5052	4936	ExodusInject.exe	101
PID 4936 wrote to memory of 5052	4936	ExodusInject.exe	101
PID 5052 wrote to memory of 4784	5052	cmd.exe	103
PID 5052 wrote to memory of 4784	5052	cmd.exe	103
PID 3008 wrote to memory of 4340	3008	AggregatorHost.exe	107
PID 3008 wrote to memory of 4340	3008	AggregatorHost.exe	107

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⤵
- Checks computer location settings
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4936
- 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:376
- 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:3612
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp62AD.tmp.bat""
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:5052
- - C:\Windows\system32\timeout.exe
    timeout 3
    3⤵
    - Delays execution with timeout.exe
    PID:4784

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2528

C:\Users\Admin\AppData\Roaming\AggregatorHost.exe
C:\Users\Admin\AppData\Roaming\AggregatorHost.exe
1⤵
- Checks computer location settings
- Drops startup file
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3008
- 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"
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:4340

C:\ProgramData\System.exe
C:\ProgramData\System.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:3376

C:\ProgramData\System.exe
C:\ProgramData\System.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:1800

C:\ProgramData\System.exe
C:\ProgramData\System.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:804

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

2

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\System.exe.log

Filesize
1KB

MD5
c952c967a6c1013f7155cc3efed8cd03

SHA1
dc5bbab6c51387ee4d9863415a196e297457d045

SHA256
f825024aeb196af7aa49d77dccfae841aa55f9fef1c1f6f8f1e0c61032f8be12

SHA512
8126ef222f9ed0f332f56b8754ed24845fc03fadcbe61bf6d82e07da81b143e120ce82be14e59dc98b460e399563e8461bf0925089a71008af58b3acd6d6afef

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

Filesize
2KB

MD5
440cb38dbee06645cc8b74d51f6e5f71

SHA1
d7e61da91dc4502e9ae83281b88c1e48584edb7c

SHA256
8ef7a682dfd99ff5b7e9de0e1be43f0016d68695a43c33c028af2635cc15ecfe

SHA512
3aab19578535e6ba0f6beb5690c87d970292100704209d2dcebddcdd46c6bead27588ef5d98729bfd50606a54cc1edf608b3d15bef42c13b9982aaaf15de7fd6

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

Filesize
944B

MD5
4a154efa7af25bb8b94d0d9c7b4f15cd

SHA1
5e0e04103e4eef1bc7ef242b730aed1958f98e1f

SHA256
c216eda372556eb78e680bde247c2fd2085642ee33031905a213c6bec502ccce

SHA512
fc4678133318fe1952947be74e244246336c7faacc9b9ae32336d57b106ec8f044e5db41dd98e8f3a54270ddacab2fc84a66d5d67deeadc3056ea5213bcbbba4

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_gayqbaxr.epe.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp62AD.tmp.bat

Filesize
164B

MD5
af732cf0919785e5694dbb2e9298153e

SHA1
2beee38117daf06e163e1ddb49a40b92c83f1d21

SHA256
d535b8ef558b9499dd10dd4596194d05e83acf62315e6445e118a680d9920e48

SHA512
3bd7529ac93aca77bbfdbf8e256c56e84812e86a4308183c9bc38042ac5ecc825f00d9bef0e2f415c29742252450cea70303e1f53404c97be435404e518c0987

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

Filesize
227KB

MD5
38b7704d2b199559ada166401f1d51c1

SHA1
3376eec35cd4616ba8127b976a8667e7a0aac87d

SHA256
153825af8babb75361f4af359bfdd5e95cbdc7f263db5c4e70ac1da8f36bc564

SHA512
07b828073c8f80c5498501c8f64decb5effa702c8bc3d60a2f7d5de36d493b469cbbf413fb0c92c0aadd6ee139bfb75f3b9e936230212d42e57d2ec5671e9b27

Download Submit
memory/376-12-0x00007FFBF4250000-0x00007FFBF4D11000-memory.dmp

Filesize
10.8MB

Download
memory/376-17-0x00007FFBF4250000-0x00007FFBF4D11000-memory.dmp

Filesize
10.8MB

Download
memory/376-14-0x00007FFBF4250000-0x00007FFBF4D11000-memory.dmp

Filesize
10.8MB

Download
memory/376-13-0x00007FFBF4250000-0x00007FFBF4D11000-memory.dmp

Filesize
10.8MB

Download
memory/376-11-0x000002BA6AA00000-0x000002BA6AA22000-memory.dmp

Filesize
136KB

Download
memory/3008-40-0x00000000012A0000-0x00000000012AE000-memory.dmp

Filesize
56KB

Download
memory/4936-32-0x00007FFBF4250000-0x00007FFBF4D11000-memory.dmp

Filesize
10.8MB

Download
memory/4936-0-0x00007FFBF4253000-0x00007FFBF4255000-memory.dmp

Filesize
8KB

Download
memory/4936-38-0x00007FFBF4250000-0x00007FFBF4D11000-memory.dmp

Filesize
10.8MB

Download
memory/4936-1-0x00000000008B0000-0x00000000008F0000-memory.dmp

Filesize
256KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads