xworm | 222f76224b428d25c8a16437f9d05309ea160816439f25dd5e5003b07ef294a6

General

Target

222f76224b428d25c8a16437f9d05309ea160816439f25dd5e5003b07ef294a6.exe
Size

205KB
MD5

f66d550297b5c67560fcdfef40b9bf5e
SHA1

9ea877d3063ed6f9f381b74e0fc71b9e72b52929
SHA256

222f76224b428d25c8a16437f9d05309ea160816439f25dd5e5003b07ef294a6
SHA512

8247e3a890163c6fddec7dc8bfb420c51cfa6aa5863203f733ad34b611f598c92d6e9405af64ade3fe8149dca55c1504071677b7dbd3c5b57f19a61f43f0ab0d
SSDEEP

3072:ff05a/CTR9hFc9UxOMh8SKfbzxcwg7es6/Vsb8VKTup49oJMfF/H9N3Ky9NzLnF:WR9Hc9wUhcX7elbKTuq9bfF/H9d9n

Score

10^/10

xworm execution rat trojan

Malware Config

Extracted

Family

xworm

Version

5.0

C2

147.50.240.203:7000

Mutex

X0ZQBFW2mJiaVxWi

Attributes

Install_directory
%ProgramData%
install_file
XClient.exe

aes.plain

Signatures

Detect Xworm Payload 1 IoCs

resource	yara_rule
behavioral2/memory/1656-1-0x0000000000CD0000-0x0000000000D08000-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

pid	Process
2200	powershell.exe
4152	powershell.exe
4940	powershell.exe
2668	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-1-5-21-786284298-625481688-3210388970-1000\Control Panel\International\Geo\Nation	222f76224b428d25c8a16437f9d05309ea160816439f25dd5e5003b07ef294a6.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\XClient.lnk	222f76224b428d25c8a16437f9d05309ea160816439f25dd5e5003b07ef294a6.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\XClient.lnk	222f76224b428d25c8a16437f9d05309ea160816439f25dd5e5003b07ef294a6.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
20	ip-api.com

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 9 IoCs

pid	Process
2200	powershell.exe
2200	powershell.exe
4152	powershell.exe
4152	powershell.exe
4940	powershell.exe
4940	powershell.exe
2668	powershell.exe
2668	powershell.exe
1656	222f76224b428d25c8a16437f9d05309ea160816439f25dd5e5003b07ef294a6.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeDebugPrivilege	1656	222f76224b428d25c8a16437f9d05309ea160816439f25dd5e5003b07ef294a6.exe
Token: SeDebugPrivilege	2200	powershell.exe
Token: SeDebugPrivilege	4152	powershell.exe
Token: SeDebugPrivilege	4940	powershell.exe
Token: SeDebugPrivilege	2668	powershell.exe
Token: SeDebugPrivilege	1656	222f76224b428d25c8a16437f9d05309ea160816439f25dd5e5003b07ef294a6.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1656	222f76224b428d25c8a16437f9d05309ea160816439f25dd5e5003b07ef294a6.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1656 wrote to memory of 2200	1656	222f76224b428d25c8a16437f9d05309ea160816439f25dd5e5003b07ef294a6.exe	93
PID 1656 wrote to memory of 2200	1656	222f76224b428d25c8a16437f9d05309ea160816439f25dd5e5003b07ef294a6.exe	93
PID 1656 wrote to memory of 4152	1656	222f76224b428d25c8a16437f9d05309ea160816439f25dd5e5003b07ef294a6.exe	96
PID 1656 wrote to memory of 4152	1656	222f76224b428d25c8a16437f9d05309ea160816439f25dd5e5003b07ef294a6.exe	96
PID 1656 wrote to memory of 4940	1656	222f76224b428d25c8a16437f9d05309ea160816439f25dd5e5003b07ef294a6.exe	98
PID 1656 wrote to memory of 4940	1656	222f76224b428d25c8a16437f9d05309ea160816439f25dd5e5003b07ef294a6.exe	98
PID 1656 wrote to memory of 2668	1656	222f76224b428d25c8a16437f9d05309ea160816439f25dd5e5003b07ef294a6.exe	100
PID 1656 wrote to memory of 2668	1656	222f76224b428d25c8a16437f9d05309ea160816439f25dd5e5003b07ef294a6.exe	100

C:\Users\Admin\AppData\Local\Temp\222f76224b428d25c8a16437f9d05309ea160816439f25dd5e5003b07ef294a6.exe
"C:\Users\Admin\AppData\Local\Temp\222f76224b428d25c8a16437f9d05309ea160816439f25dd5e5003b07ef294a6.exe"
1⤵
- Checks computer location settings
- Drops startup file
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1656
- 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\222f76224b428d25c8a16437f9d05309ea160816439f25dd5e5003b07ef294a6.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2200
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess '222f76224b428d25c8a16437f9d05309ea160816439f25dd5e5003b07ef294a6.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4152
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\ProgramData\XClient.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4940
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'XClient.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2668

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

Replay Monitor

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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\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
944B

MD5
b129154ef334e2655fc7290528be3877

SHA1
ca5992210ad0537d47a12cf4624e1e0e05feba88

SHA256
671d36cb188e89e11c4f79e55ad666eaa760f9a0a701721d6c463cf6fd55619b

SHA512
0cc4affa208a99112e76b5b8701408bfe204589d0f498df0e1f1827781881d2024eb421cf0013e99a69a2897a14cc5d32af5409a37b753cd3846948d518d8b4a

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

Filesize
944B

MD5
340b40d863485995ea7eaab9c386dc21

SHA1
47c7de08001050abece764110b8cc028e3c9cb8f

SHA256
5087735f420e1649e208017b143c45d25893b36fe32fd4fa7c97cebf5fe87f19

SHA512
1d007bfeca3aee0312cc64db448746db3153b4a7d77997d3d63b0bc7efe646dc6ebc1ba5fc1a0f62f48c18cdb07d8c0343d1433c13f7ecd62dc281d018d45eed

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_hehrzama.efg.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/1656-1-0x0000000000CD0000-0x0000000000D08000-memory.dmp

Filesize
224KB

Download
memory/1656-2-0x00007FF8739C0000-0x00007FF874481000-memory.dmp

Filesize
10.8MB

Download
memory/1656-59-0x00007FF8739C0000-0x00007FF874481000-memory.dmp

Filesize
10.8MB

Download
memory/1656-0-0x00007FF8739C3000-0x00007FF8739C5000-memory.dmp

Filesize
8KB

Download
memory/1656-58-0x000000001C870000-0x000000001C972000-memory.dmp

Filesize
1.0MB

Download
memory/1656-57-0x00007FF8739C3000-0x00007FF8739C5000-memory.dmp

Filesize
8KB

Download
memory/2200-13-0x0000018329300000-0x0000018329322000-memory.dmp

Filesize
136KB

Download
memory/2200-18-0x00007FF8739C0000-0x00007FF874481000-memory.dmp

Filesize
10.8MB

Download
memory/2200-15-0x00007FF8739C0000-0x00007FF874481000-memory.dmp

Filesize
10.8MB

Download
memory/2200-14-0x00007FF8739C0000-0x00007FF874481000-memory.dmp

Filesize
10.8MB

Download
memory/2200-3-0x00007FF8739C0000-0x00007FF874481000-memory.dmp

Filesize
10.8MB

Download

Analysis

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