xworm | ee77fd66103b412195daff2514cd1fb550e61e618c2fa98bfd5ab998e5cd7b6b

General

Target

explorers.exe
Size

99KB
MD5

70481cef66610d13de32339230ddcfd1
SHA1

39d19ccc6c1d77fe62d39b7eda95559bd2969f16
SHA256

ee77fd66103b412195daff2514cd1fb550e61e618c2fa98bfd5ab998e5cd7b6b
SHA512

75e0f65e0a2957a20796c93654ccde195f9c53d821c25a260c4203a2170aa821dbfc9c1ce3b165a41a23d44ef7c033076f1da9fe2691b2087c60b89dce8a63a7
SSDEEP

1536:gCg7wHl8aTciGekb5jPHyZ6xnOEiXChiH0hLP+VVVVVVVVVVVVVVVVVVVVVVVVVm:Gi8ScRekb5DnOEiXbH0hLND

Score

10^/10

xworm execution rat trojan

Malware Config

Extracted

Family

xworm

C2

127.0.0.1:44495

death-manor.gl.at.ply.gg:44495

Attributes

install_file
USB.exe

Signatures

Detect Xworm Payload 1 IoCs

resource	yara_rule
behavioral2/memory/1216-1-0x0000000000CC0000-0x0000000000CDE000-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
1704	powershell.exe
4680	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-1-5-21-1045960512-3948844814-3059691613-1000\Control Panel\International\Geo\Nation	explorers.exe

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1704	powershell.exe
1704	powershell.exe
4680	powershell.exe
4680	powershell.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	1216	explorers.exe
Token: SeDebugPrivilege	1704	powershell.exe
Token: SeDebugPrivilege	4680	powershell.exe
Token: SeDebugPrivilege	1216	explorers.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1216 wrote to memory of 1704	1216	explorers.exe	90
PID 1216 wrote to memory of 1704	1216	explorers.exe	90
PID 1216 wrote to memory of 4680	1216	explorers.exe	92
PID 1216 wrote to memory of 4680	1216	explorers.exe	92

C:\Users\Admin\AppData\Local\Temp\explorers.exe
"C:\Users\Admin\AppData\Local\Temp\explorers.exe"
1⤵
- Checks computer location settings
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1216
- 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\explorers.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1704
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'explorers.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4680

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

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

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\Temp\__PSScriptPolicyTest_em3ui5sr.gw5.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/1216-0-0x00007FFA10643000-0x00007FFA10645000-memory.dmp

Filesize
8KB

Download
memory/1216-1-0x0000000000CC0000-0x0000000000CDE000-memory.dmp

Filesize
120KB

Download
memory/1216-30-0x00007FFA10640000-0x00007FFA11101000-memory.dmp

Filesize
10.8MB

Download
memory/1216-31-0x00007FFA10643000-0x00007FFA10645000-memory.dmp

Filesize
8KB

Download
memory/1216-32-0x00007FFA10640000-0x00007FFA11101000-memory.dmp

Filesize
10.8MB

Download
memory/1704-12-0x00007FFA10640000-0x00007FFA11101000-memory.dmp

Filesize
10.8MB

Download
memory/1704-13-0x00007FFA10640000-0x00007FFA11101000-memory.dmp

Filesize
10.8MB

Download
memory/1704-14-0x00007FFA10640000-0x00007FFA11101000-memory.dmp

Filesize
10.8MB

Download
memory/1704-17-0x00007FFA10640000-0x00007FFA11101000-memory.dmp

Filesize
10.8MB

Download
memory/1704-2-0x0000019EECDD0000-0x0000019EECDF2000-memory.dmp

Filesize
136KB

Download

Analysis

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