xworm | 6af699d5b423e9a27be4422622b30d0d3e8ebdd259e192ed535c89183f266315

General

Target

Loader.exe
Size

60KB
MD5

5aa0bf1d5dc1e0b454a0db99b6f5f854
SHA1

e0e693a23154ba031c06ddaa6927277d303ab6fc
SHA256

6af699d5b423e9a27be4422622b30d0d3e8ebdd259e192ed535c89183f266315
SHA512

5d82a3606dcc7a03e92c9948333249b082a4e341342918db93113a13565bc08a447f943ceb60b1a2782ff026d784358bf5f2648ff09cfe41be4a5210747b2880
SSDEEP

1536:PQXTdHRSiY4TLufp7NkbTNr9QSxu6rOLlIKgy:PedHEiY8SRNkbTQSFOLlIKgy

Score

10^/10

xworm execution rat trojan

Malware Config

Extracted

Family

xworm

C2

parents-roy.gl.at.ply.gg:13511

Attributes

Install_directory
%Temp%
install_file
Update.exe

Signatures

Detect Xworm Payload 1 IoCs

Processes:

resource	yara_rule
behavioral1/memory/4728-1-0x0000000000B60000-0x0000000000B76000-memory.dmp	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

Processes:

powershell.exepowershell.exepowershell.exepowershell.exe

pid process

2212 powershell.exe
772 powershell.exe
3048 powershell.exe
3740 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

Processes:

Loader.exe

description ioc process

Key value queried \REGISTRY\USER\S-1-5-21-1162180587-977231257-2194346871-1000\Control Panel\International\Geo\Nation Loader.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1162180587-977231257-2194346871-1000\Control Panel\International\Geo\Nation	Loader.exe

Drops startup file 2 IoCs

Processes:

Loader.exe

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

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 8 IoCs

Processes:

powershell.exepowershell.exepowershell.exepowershell.exe

pid	process
2212	powershell.exe
2212	powershell.exe
772	powershell.exe
772	powershell.exe
3048	powershell.exe
3048	powershell.exe
3740	powershell.exe
3740	powershell.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

Processes:

Loader.exepowershell.exepowershell.exepowershell.exepowershell.exe

description	pid	process
Token: SeDebugPrivilege	4728	Loader.exe
Token: SeDebugPrivilege	2212	powershell.exe
Token: SeDebugPrivilege	772	powershell.exe
Token: SeDebugPrivilege	3048	powershell.exe
Token: SeDebugPrivilege	3740	powershell.exe
Token: SeDebugPrivilege	4728	Loader.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

Loader.exe

description	pid	process	target process
PID 4728 wrote to memory of 2212	4728	Loader.exe	powershell.exe
PID 4728 wrote to memory of 2212	4728	Loader.exe	powershell.exe
PID 4728 wrote to memory of 772	4728	Loader.exe	powershell.exe
PID 4728 wrote to memory of 772	4728	Loader.exe	powershell.exe
PID 4728 wrote to memory of 3048	4728	Loader.exe	powershell.exe
PID 4728 wrote to memory of 3048	4728	Loader.exe	powershell.exe
PID 4728 wrote to memory of 3740	4728	Loader.exe	powershell.exe
PID 4728 wrote to memory of 3740	4728	Loader.exe	powershell.exe

C:\Users\Admin\AppData\Local\Temp\Loader.exe
"C:\Users\Admin\AppData\Local\Temp\Loader.exe"
1⤵
- Checks computer location settings
- Drops startup file
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4728

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\Loader.exe'
2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2212

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'Loader.exe'
2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:772

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\Update.exe'
2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3048

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'Update.exe'
2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3740

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

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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
d28a889fd956d5cb3accfbaf1143eb6f

SHA1
157ba54b365341f8ff06707d996b3635da8446f7

SHA256
21e5d7ccf80a293e6ba30ed728846ca19c929c52b96e2c8d34e27cd2234f1d45

SHA512
0b6d88deb9be85722e6a78d5886d49f2caf407a59e128d2b4ed74c1356f9928c40048a62731959f2460e9ff9d9feee311043d2a37abe3bb92c2b76a44281478c

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
Filesize
944B

MD5
a7cc007980e419d553568a106210549a

SHA1
c03099706b75071f36c3962fcc60a22f197711e0

SHA256
a5735921fc72189c8bf577f3911486cf031708dc8d6bc764fe3e593c0a053165

SHA512
b9aaf29403c467daef80a1ae87478afc33b78f4e1ca16189557011bb83cf9b3e29a0f85c69fa209c45201fb28baca47d31756eee07b79c6312c506e8370f7666

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_tq1kcva3.mop.ps1
Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/2212-7-0x0000021A57310000-0x0000021A57332000-memory.dmp

Filesize
136KB

Download
memory/2212-12-0x00007FFE24C40000-0x00007FFE25701000-memory.dmp

Filesize
10.8MB

Download
memory/2212-14-0x00007FFE24C40000-0x00007FFE25701000-memory.dmp

Filesize
10.8MB

Download
memory/2212-13-0x00007FFE24C40000-0x00007FFE25701000-memory.dmp

Filesize
10.8MB

Download
memory/2212-17-0x00007FFE24C40000-0x00007FFE25701000-memory.dmp

Filesize
10.8MB

Download
memory/4728-0-0x00007FFE24C43000-0x00007FFE24C45000-memory.dmp

Filesize
8KB

Download
memory/4728-1-0x0000000000B60000-0x0000000000B76000-memory.dmp

Filesize
88KB

Download
memory/4728-56-0x00007FFE24C40000-0x00007FFE25701000-memory.dmp

Filesize
10.8MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads