xworm | 97050c3d3a76780973410f615d77a64e2f2683a20328bc880a89300aa8110521

General

Target

wilde.exe.bin.exe
Size

6KB
MD5

45580bbbbad94be86fb0e2062af79fb8
SHA1

0599518ee61f4ac8453f8ff147110686fc0afc02
SHA256

97050c3d3a76780973410f615d77a64e2f2683a20328bc880a89300aa8110521
SHA512

2d6f7500d789b59c4bede099243150b6460f232de12f67f33b290f399b147f47fe645e491d5a0f031aced8ac5a268c202db9673b1dd322c6e2196022690e17b2
SSDEEP

48:6MP5kBZOKrnlVCsYRUY9BjP0GbulgwIHhIBo71jNM4+1GbVgZs2rXVjbyxCtDDl:tKrlVCsY9BTalCH7CHNrXVjBq0zNt

Score

10^/10

xworm discovery 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 2 IoCs

resource	yara_rule
behavioral2/files/0x0008000000023ca8-7.dat	family_xworm
behavioral2/memory/4868-17-0x0000000000B20000-0x0000000000B3E000-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
464	powershell.exe
4320	powershell.exe

Downloads MZ/PE file

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	wilde.exe.bin.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\Control Panel\International\Geo\Nation	explorers.exe

Executes dropped EXE 1 IoCs

pid	Process
4868	explorers.exe

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	wilde.exe.bin.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.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
4972	schtasks.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
464	powershell.exe
464	powershell.exe
4320	powershell.exe
4320	powershell.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

description	pid	Process
Token: SeDebugPrivilege	3440	wilde.exe.bin.exe
Token: SeDebugPrivilege	4868	explorers.exe
Token: SeDebugPrivilege	464	powershell.exe
Token: SeDebugPrivilege	4320	powershell.exe
Token: SeDebugPrivilege	4868	explorers.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 3440 wrote to memory of 4868	3440	wilde.exe.bin.exe	87
PID 3440 wrote to memory of 4868	3440	wilde.exe.bin.exe	87
PID 3440 wrote to memory of 3468	3440	wilde.exe.bin.exe	88
PID 3440 wrote to memory of 3468	3440	wilde.exe.bin.exe	88
PID 3440 wrote to memory of 3468	3440	wilde.exe.bin.exe	88
PID 3468 wrote to memory of 4972	3468	cmd.exe	90
PID 3468 wrote to memory of 4972	3468	cmd.exe	90
PID 3468 wrote to memory of 4972	3468	cmd.exe	90
PID 4868 wrote to memory of 464	4868	explorers.exe	95
PID 4868 wrote to memory of 464	4868	explorers.exe	95
PID 4868 wrote to memory of 4320	4868	explorers.exe	97
PID 4868 wrote to memory of 4320	4868	explorers.exe	97

C:\Users\Admin\AppData\Local\Temp\wilde.exe.bin.exe
"C:\Users\Admin\AppData\Local\Temp\wilde.exe.bin.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3440
- C:\Users\Admin\AppData\Local\Temp\explorers.exe
  "C:\Users\Admin\AppData\Local\Temp\explorers.exe"
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4868
- - 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'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:464
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'explorers.exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:4320
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /tn "MyCustomTask" /tr "C:\Users\Admin\AppData\Local\Temp\wilde.exe.bin.exe" /sc onlogon /rl highest /f
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3468
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /tn "MyCustomTask" /tr "C:\Users\Admin\AppData\Local\Temp\wilde.exe.bin.exe" /sc onlogon /rl highest /f
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:4972

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

1

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

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
62623d22bd9e037191765d5083ce16a3

SHA1
4a07da6872672f715a4780513d95ed8ddeefd259

SHA256
95d79fd575bbd21540e378fcbc1cd00d16f51af62ce15bae7080bb72c24e2010

SHA512
9a448b7a0d867466c2ea04ab84d2a9485d5fd20ab53b2b854f491831ee3f1d781b94d2635f7b0b35cb9f2d373cd52c67570879a56a42ed66bc9db06962ed4992

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_1zuchwwo.iug.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

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

Filesize
99KB

MD5
70481cef66610d13de32339230ddcfd1

SHA1
39d19ccc6c1d77fe62d39b7eda95559bd2969f16

SHA256
ee77fd66103b412195daff2514cd1fb550e61e618c2fa98bfd5ab998e5cd7b6b

SHA512
75e0f65e0a2957a20796c93654ccde195f9c53d821c25a260c4203a2170aa821dbfc9c1ce3b165a41a23d44ef7c033076f1da9fe2691b2087c60b89dce8a63a7

Download Submit
memory/464-22-0x000001A3D1C20000-0x000001A3D1C42000-memory.dmp

Filesize
136KB

Download
memory/3440-19-0x0000000074680000-0x0000000074E30000-memory.dmp

Filesize
7.7MB

Download
memory/3440-0-0x000000007468E000-0x000000007468F000-memory.dmp

Filesize
4KB

Download
memory/3440-2-0x0000000074680000-0x0000000074E30000-memory.dmp

Filesize
7.7MB

Download
memory/3440-1-0x0000000000D60000-0x0000000000D68000-memory.dmp

Filesize
32KB

Download
memory/4868-16-0x00007FFDEE213000-0x00007FFDEE215000-memory.dmp

Filesize
8KB

Download
memory/4868-17-0x0000000000B20000-0x0000000000B3E000-memory.dmp

Filesize
120KB

Download
memory/4868-44-0x00007FFDEE210000-0x00007FFDEECD1000-memory.dmp

Filesize
10.8MB

Download
memory/4868-45-0x00007FFDEE210000-0x00007FFDEECD1000-memory.dmp

Filesize
10.8MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads