xworm | d35f477971442252b444638b427427ad2bca84f4991b1e1f6285cc00152b7701

General

Target

dwdadwawa.exe
Size

63KB
MD5

7bb9d6edfd29f0b72b7c628b9fab2a3e
SHA1

f603ce6c91c1314c4af009792cfa725ce953e906
SHA256

d35f477971442252b444638b427427ad2bca84f4991b1e1f6285cc00152b7701
SHA512

38403a5e83716f3a98ff48653535a3599faa221c9dbfe9cf858b776975d4a8e73632e212e128fb6c6f73eb99f31a1f4e83696705df2fac72e2bbb179f701725d
SSDEEP

1536:ZYWnc4BSrIN5GMAFg6iu80+wcGr6bg9+UEPPArfh96GBo4AOnr5z:Z4aZAFg6FC5E6bg9+ZI/oOnr5z

Score

10^/10

xworm execution rat trojan

Malware Config

Extracted

Family

xworm

C2

main-although.gl.at.ply.gg:30970

Attributes

Install_directory
%AppData%
install_file
XClient.exe

Signatures

Detect Xworm Payload 1 IoCs

resource	yara_rule
behavioral2/memory/3496-1-0x00000000006F0000-0x0000000000706000-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
3748	powershell.exe
1948	powershell.exe
2000	powershell.exe
436	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-1-5-21-2636447293-1148739154-93880854-1000\Control Panel\International\Geo\Nation	dwdadwawa.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\XClient.lnk	dwdadwawa.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\XClient.lnk	dwdadwawa.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
17	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 8 IoCs

pid	Process
3748	powershell.exe
3748	powershell.exe
1948	powershell.exe
1948	powershell.exe
2000	powershell.exe
2000	powershell.exe
436	powershell.exe
436	powershell.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeDebugPrivilege	3496	dwdadwawa.exe
Token: SeDebugPrivilege	3748	powershell.exe
Token: SeDebugPrivilege	1948	powershell.exe
Token: SeDebugPrivilege	2000	powershell.exe
Token: SeDebugPrivilege	436	powershell.exe
Token: SeDebugPrivilege	3496	dwdadwawa.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 3496 wrote to memory of 3748	3496	dwdadwawa.exe	88
PID 3496 wrote to memory of 3748	3496	dwdadwawa.exe	88
PID 3496 wrote to memory of 1948	3496	dwdadwawa.exe	90
PID 3496 wrote to memory of 1948	3496	dwdadwawa.exe	90
PID 3496 wrote to memory of 2000	3496	dwdadwawa.exe	92
PID 3496 wrote to memory of 2000	3496	dwdadwawa.exe	92
PID 3496 wrote to memory of 436	3496	dwdadwawa.exe	94
PID 3496 wrote to memory of 436	3496	dwdadwawa.exe	94

C:\Users\Admin\AppData\Local\Temp\dwdadwawa.exe
"C:\Users\Admin\AppData\Local\Temp\dwdadwawa.exe"
1⤵
- Checks computer location settings
- Drops startup file
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3496
- 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\dwdadwawa.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3748
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'dwdadwawa.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1948
- 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\XClient.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2000
- 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:436

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
cadef9abd087803c630df65264a6c81c

SHA1
babbf3636c347c8727c35f3eef2ee643dbcc4bd2

SHA256
cce65b73cdfe9304bcd5207913e8b60fb69faa20cd3b684f2b0343b755b99438

SHA512
7278aa87124abb382d9024a645e881e7b7cf1b84e8894943b36e018dbf0399e6858392f77980b599fa5488e2e21bf757a0702fe6419417edac93b68e0c2ec085

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

Filesize
944B

MD5
65a68df1062af34622552c4f644a5708

SHA1
6f6ecf7b4b635abb0b132d95dac2759dc14b50af

SHA256
718dc2f5f4a6dbb7fab7f3db05bd7f602fb16526caae7084ab46c3ab4e7bad35

SHA512
4e460eb566032942547b58411222dd26ae300a95f83cf5ae6df58ebd28594341123611b348bd4031a33bc7f38307d5cb8fb677bba8c896919e3eee677a104d4d

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

Filesize
944B

MD5
e60eb305a7b2d9907488068b7065abd3

SHA1
1643dd7f915ac50c75bc01c53d68c5dafb9ce28d

SHA256
ad07460e061642c0dd4e7dfa7b821aacce873e290389e72f708e9f3504f9d135

SHA512
95c45afec6fa4e0b2a21edd10a6b2dc30568810c67bc9bc34d98ab111c48261f377a370583adb27e08616b0108026c119493b1b093b52ce931117e646b46cb7b

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_w2odticv.wyq.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/3496-0-0x00007FFF0A923000-0x00007FFF0A925000-memory.dmp

Filesize
8KB

Download
memory/3496-2-0x00007FFF0A920000-0x00007FFF0B3E1000-memory.dmp

Filesize
10.8MB

Download
memory/3496-1-0x00000000006F0000-0x0000000000706000-memory.dmp

Filesize
88KB

Download
memory/3496-57-0x00007FFF0A923000-0x00007FFF0A925000-memory.dmp

Filesize
8KB

Download
memory/3496-58-0x00007FFF0A920000-0x00007FFF0B3E1000-memory.dmp

Filesize
10.8MB

Download
memory/3748-12-0x000001C8668C0000-0x000001C8668E2000-memory.dmp

Filesize
136KB

Download
memory/3748-14-0x00007FFF0A920000-0x00007FFF0B3E1000-memory.dmp

Filesize
10.8MB

Download
memory/3748-15-0x00007FFF0A920000-0x00007FFF0B3E1000-memory.dmp

Filesize
10.8MB

Download
memory/3748-18-0x00007FFF0A920000-0x00007FFF0B3E1000-memory.dmp

Filesize
10.8MB

Download
memory/3748-13-0x00007FFF0A920000-0x00007FFF0B3E1000-memory.dmp

Filesize
10.8MB

Download

Analysis

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