xworm | 4589073aab658c11af8490bc2d39d8b7c6d16e313320a9c67a6cbb7408f8af4a

General

Target

ExReporterFIX.exe
Size

65KB
MD5

5d36dc879659d7eecf5a0867bbd05165
SHA1

d23b8a98691b5a0379f761ea1669869690e3fd9f
SHA256

4589073aab658c11af8490bc2d39d8b7c6d16e313320a9c67a6cbb7408f8af4a
SHA512

854bc8b9406bcc57cc56ff4d19bae4cc8a18a4fa4f4543c6064413e004a34386dec35dfd617c181d163d5038e068fd442a4eb4a45caa9905c78c29ee210864f4
SSDEEP

1536:kxJhEM7T/hC+xaaGbb05/Txd4j6txHO56197:YJ+MnheaMb0NHO56f7

Score

10^/10

xworm execution persistence rat trojan

Malware Config

Extracted

Family

xworm

C2

21.ip.gl.ply.gg:21222

Attributes

Install_directory
%LocalAppData%
install_file
ExReporters.exe
telegram
https://api.telegram.org/bot7307556336:AAFxy7gvsomu0v1K0jbYvC1K7DBoqhWv9ek/sendMessage?chat_id=1748805076

Signatures

Detect Xworm Payload 2 IoCs

resource	yara_rule
behavioral1/memory/3384-1-0x0000000000BC0000-0x0000000000BD6000-memory.dmp	family_xworm
behavioral1/files/0x0003000000016857-58.dat	family_xworm

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

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
4240	powershell.exe
3068	powershell.exe
2864	powershell.exe
1444	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-1-5-21-2170637797-568393320-3232933035-1000\Control Panel\International\Geo\Nation	ExReporterFIX.exe

Drops startup file 2 IoCs

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

Executes dropped EXE 1 IoCs

pid	Process
2100	ExReporters.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-1-5-21-2170637797-568393320-3232933035-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ExReporters = "C:\\Users\\Admin\\AppData\\Local\\ExReporters.exe"	ExReporterFIX.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
22	ip-api.com

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

System Information Discovery
T1082

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
2076	schtasks.exe

Suspicious behavior: EnumeratesProcesses 14 IoCs

pid	Process
4240	powershell.exe
4240	powershell.exe
4240	powershell.exe
3068	powershell.exe
3068	powershell.exe
3068	powershell.exe
2864	powershell.exe
2864	powershell.exe
2864	powershell.exe
1444	powershell.exe
1444	powershell.exe
1444	powershell.exe
3384	ExReporterFIX.exe
3384	ExReporterFIX.exe

Suspicious use of AdjustPrivilegeToken 7 IoCs

description	pid	Process
Token: SeDebugPrivilege	3384	ExReporterFIX.exe
Token: SeDebugPrivilege	4240	powershell.exe
Token: SeDebugPrivilege	3068	powershell.exe
Token: SeDebugPrivilege	2864	powershell.exe
Token: SeDebugPrivilege	1444	powershell.exe
Token: SeDebugPrivilege	3384	ExReporterFIX.exe
Token: SeDebugPrivilege	2100	ExReporters.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3384	ExReporterFIX.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 3384 wrote to memory of 4240	3384	ExReporterFIX.exe	98
PID 3384 wrote to memory of 4240	3384	ExReporterFIX.exe	98
PID 3384 wrote to memory of 3068	3384	ExReporterFIX.exe	102
PID 3384 wrote to memory of 3068	3384	ExReporterFIX.exe	102
PID 3384 wrote to memory of 2864	3384	ExReporterFIX.exe	105
PID 3384 wrote to memory of 2864	3384	ExReporterFIX.exe	105
PID 3384 wrote to memory of 1444	3384	ExReporterFIX.exe	107
PID 3384 wrote to memory of 1444	3384	ExReporterFIX.exe	107
PID 3384 wrote to memory of 2076	3384	ExReporterFIX.exe	109
PID 3384 wrote to memory of 2076	3384	ExReporterFIX.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\ExReporterFIX.exe
"C:\Users\Admin\AppData\Local\Temp\ExReporterFIX.exe"
1⤵
- Checks computer location settings
- Drops startup file
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3384
- 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\ExReporterFIX.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4240
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'ExReporterFIX.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3068
- 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\ExReporters.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2864
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'ExReporters.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1444
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "ExReporters" /tr "C:\Users\Admin\AppData\Local\ExReporters.exe"
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:2076

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=4344,i,11391966286255097843,10588851088187498028,262144 --variations-seed-version --mojo-platform-channel-handle=3836 /prefetch:8
1⤵
PID:1696

C:\Users\Admin\AppData\Local\ExReporters.exe
C:\Users\Admin\AppData\Local\ExReporters.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:2100

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

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\ExReporters.exe

Filesize
65KB

MD5
5d36dc879659d7eecf5a0867bbd05165

SHA1
d23b8a98691b5a0379f761ea1669869690e3fd9f

SHA256
4589073aab658c11af8490bc2d39d8b7c6d16e313320a9c67a6cbb7408f8af4a

SHA512
854bc8b9406bcc57cc56ff4d19bae4cc8a18a4fa4f4543c6064413e004a34386dec35dfd617c181d163d5038e068fd442a4eb4a45caa9905c78c29ee210864f4

Download Submit
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
944B

MD5
e448fe0d240184c6597a31d3be2ced58

SHA1
372b8d8c19246d3e38cd3ba123cc0f56070f03cd

SHA256
c660f0db85a1e7f0f68db19868979bf50bd541531babf77a701e1b1ce5e6a391

SHA512
0b7f7eae7700d32b18eee3677cb7f89b46ace717fa7e6b501d6c47d54f15dff7e12b49f5a7d36a6ffe4c16165c7d55162db4f3621db545b6af638035752beab4

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

Filesize
944B

MD5
65a68df1062af34622552c4f644a5708

SHA1
6f6ecf7b4b635abb0b132d95dac2759dc14b50af

SHA256
718dc2f5f4a6dbb7fab7f3db05bd7f602fb16526caae7084ab46c3ab4e7bad35

SHA512
4e460eb566032942547b58411222dd26ae300a95f83cf5ae6df58ebd28594341123611b348bd4031a33bc7f38307d5cb8fb677bba8c896919e3eee677a104d4d

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

Filesize
944B

MD5
ea40386e93203f2f2712bd0bf029cfa4

SHA1
e3e27a3dbda20298f4f93fa14b6a07cee649bd61

SHA256
c031090ef773b0453a97ab7aaa94dfe4f2bb4a35cc369c41933c20bdd666c72c

SHA512
e7590d696a53c97b955092637a14c3b691ecf2dd15701d9ef05ba2973d0cbbbc7439f0e180c0244960be2db7160f97519783f6fa71b2503aa963b25dd39fa121

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_1mzjyir3.gax.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/3384-1-0x0000000000BC0000-0x0000000000BD6000-memory.dmp

Filesize
88KB

Download
memory/3384-2-0x00007FFEC0000000-0x00007FFEC0AC1000-memory.dmp

Filesize
10.8MB

Download
memory/3384-0-0x00007FFEC0003000-0x00007FFEC0005000-memory.dmp

Filesize
8KB

Download
memory/3384-57-0x00007FFEC0000000-0x00007FFEC0AC1000-memory.dmp

Filesize
10.8MB

Download
memory/4240-3-0x00007FFEC0000000-0x00007FFEC0AC1000-memory.dmp

Filesize
10.8MB

Download
memory/4240-18-0x00007FFEC0000000-0x00007FFEC0AC1000-memory.dmp

Filesize
10.8MB

Download
memory/4240-15-0x00007FFEC0000000-0x00007FFEC0AC1000-memory.dmp

Filesize
10.8MB

Download
memory/4240-13-0x0000020FC2470000-0x0000020FC2492000-memory.dmp

Filesize
136KB

Download
memory/4240-14-0x00007FFEC0000000-0x00007FFEC0AC1000-memory.dmp

Filesize
10.8MB

Download

Resubmissions

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads