xworm | 58f9f63d8670db392456194af508ecd14dc67e6cb6c12bb97e6dc3c6e6a235c8

General

Target

58f9f63d8670db392456194af508ecd14dc67e6cb6c12bb97e6dc3c6e6a235c8.exe
Size

168KB
MD5

aee93634e5040dc2a7ae6ebc7e06b952
SHA1

41f2ab5f784252217a5c1516cd76dbffd67bbeac
SHA256

58f9f63d8670db392456194af508ecd14dc67e6cb6c12bb97e6dc3c6e6a235c8
SHA512

673ed7d77a1b025c120f9e99bc81e857158420adc380094b620b62ce9c38daf8f7b11d9788d1861da0cff71285fba228f80f2c8a872589f47373eb126b65f06e
SSDEEP

3072:gwe+6Rkd+MisaP1JmK6Hw9hEgXEp1NDLfgAiKgD7fYtB2SOEQW40/mmo0ioiM:glbRFLsaPfmK6HwXDXsFglf7gya4tmB

Score

10^/10

xworm execution persistence rat trojan

Malware Config

Extracted

Family

xworm

Version

3.1

C2

activities-mustang.gl.at.ply.gg:54756

Attributes

Install_directory
%AppData%
install_file
USB.exe

Signatures

Detect Xworm Payload 2 IoCs

resource	yara_rule
behavioral2/files/0x0002000000022af2-7.dat	family_xworm
behavioral2/memory/3028-16-0x0000000000180000-0x0000000000196000-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

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

execution

PowerShell

T1059.001

pid	Process
4572	powershell.exe
4684	powershell.exe
1904	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-1-5-21-3442511616-637977696-3186306149-1000\Control Panel\International\Geo\Nation	58f9f63d8670db392456194af508ecd14dc67e6cb6c12bb97e6dc3c6e6a235c8.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\Control Panel\International\Geo\Nation	X.exe

Drops startup file 2 IoCs

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

Executes dropped EXE 1 IoCs

pid	Process
3028	X.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-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\X = "C:\\Users\\Admin\\AppData\\Roaming\\X.exe"	X.exe

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
4572	powershell.exe
4572	powershell.exe
4684	powershell.exe
4684	powershell.exe
1904	powershell.exe
1904	powershell.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

description	pid	Process
Token: SeDebugPrivilege	3028	X.exe
Token: SeDebugPrivilege	4572	powershell.exe
Token: SeDebugPrivilege	4684	powershell.exe
Token: SeDebugPrivilege	1904	powershell.exe
Token: SeDebugPrivilege	3028	X.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 3960 wrote to memory of 3028	3960	58f9f63d8670db392456194af508ecd14dc67e6cb6c12bb97e6dc3c6e6a235c8.exe	87
PID 3960 wrote to memory of 3028	3960	58f9f63d8670db392456194af508ecd14dc67e6cb6c12bb97e6dc3c6e6a235c8.exe	87
PID 3028 wrote to memory of 4572	3028	X.exe	92
PID 3028 wrote to memory of 4572	3028	X.exe	92
PID 3028 wrote to memory of 4684	3028	X.exe	94
PID 3028 wrote to memory of 4684	3028	X.exe	94
PID 3028 wrote to memory of 1904	3028	X.exe	96
PID 3028 wrote to memory of 1904	3028	X.exe	96

C:\Users\Admin\AppData\Local\Temp\58f9f63d8670db392456194af508ecd14dc67e6cb6c12bb97e6dc3c6e6a235c8.exe
"C:\Users\Admin\AppData\Local\Temp\58f9f63d8670db392456194af508ecd14dc67e6cb6c12bb97e6dc3c6e6a235c8.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3960
- C:\Users\Admin\AppData\Local\Temp\X.exe
  "C:\Users\Admin\AppData\Local\Temp\X.exe"
  2⤵
  - Checks computer location settings
  - Drops startup file
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3028
- - 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\X.exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:4572
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'X.exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:4684
- - 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\X.exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:1904

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

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\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
2e907f77659a6601fcc408274894da2e

SHA1
9f5b72abef1cd7145bf37547cdb1b9254b4efe9d

SHA256
385da35673330e21ac02545220552fe301fe54dedefbdafc097ac4342a295233

SHA512
34fa0fff24f6550f55f828541aaefe5d75c86f8f0842d54b50065e9746f9662bb7209c74c9a9571540b9855bb3851f01db613190024e89b198d485bb5dc07721

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

Filesize
944B

MD5
e58749a7a1826f6ea62df1e2ef63a32b

SHA1
c0bca21658b8be4f37b71eec9578bfefa44f862d

SHA256
0e1f0e684adb40a5d0668df5fed007c9046137d7ae16a1f2f343b139d5f9bc93

SHA512
4cf45b2b11ab31e7f67fff286b29d50ed28cd6043091144c5c0f1348b5f5916ed7479cf985595e6f096b586ab93b4b5dce612f688049b8366a2dd91863e98b70

Download Submit
C:\Users\Admin\AppData\Local\Temp\X.exe

Filesize
61KB

MD5
2c76b88a912c741f1404b400c1add578

SHA1
13d1b6d341d59aef6833a4123e22484ddb665183

SHA256
5178365164f71d22459d807a5ba61e8d50dd15a4adb4a00b08248c6f141f8074

SHA512
b8f8ae619f7cdf323c4f98e63bea5c3059886792b0c5a41df96a243811bf78df2fec45bf4b459e07c8c564ee2875852ac47eb3c3ad34cf70c8ba27c547163ebe

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_eaxsqxx2.s3k.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/3028-17-0x00007FFEF1220000-0x00007FFEF1CE1000-memory.dmp

Filesize
10.8MB

Download
memory/3028-16-0x0000000000180000-0x0000000000196000-memory.dmp

Filesize
88KB

Download
memory/3028-61-0x00007FFEF1220000-0x00007FFEF1CE1000-memory.dmp

Filesize
10.8MB

Download
memory/3028-62-0x00007FFEF1220000-0x00007FFEF1CE1000-memory.dmp

Filesize
10.8MB

Download
memory/3028-63-0x00007FFEF1220000-0x00007FFEF1CE1000-memory.dmp

Filesize
10.8MB

Download
memory/3960-19-0x00007FFEF1220000-0x00007FFEF1CE1000-memory.dmp

Filesize
10.8MB

Download
memory/3960-0-0x00007FFEF1223000-0x00007FFEF1225000-memory.dmp

Filesize
8KB

Download
memory/3960-3-0x00007FFEF1220000-0x00007FFEF1CE1000-memory.dmp

Filesize
10.8MB

Download
memory/3960-1-0x0000000000720000-0x0000000000750000-memory.dmp

Filesize
192KB

Download
memory/4572-25-0x0000016968310000-0x0000016968332000-memory.dmp

Filesize
136KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads