xworm | 72905a621da6ddc614abf5385b2279779b556792400406b6967ab36a8b6bd39e

General

Target

72905a621da6ddc614abf5385b2279779b556792400406b6967ab36a8b6bd39e.exe
Size

298KB
MD5

3e9007a477dd81264659889b9e245c8d
SHA1

7d784a4b63b95f2330217b88e8b1d53b54533ffd
SHA256

72905a621da6ddc614abf5385b2279779b556792400406b6967ab36a8b6bd39e
SHA512

2438eab27f992c71fa9379dcf012ad89db79e1c79f92fd32f384c27644891b77ef1be5bec96021a3a44dcbc75085bb8425cf25d8cd80d6dca1e04b361a44a411
SSDEEP

3072:InFK9onOjbJ2QAsSdADRq6ty71wtYM77ldY7AXTp2kA3:IFK9bJuwH77Ppj0kA

Score

10^/10

xworm execution rat trojan

Malware Config

Extracted

Family

xworm

Version

5.0

C2

dane1c-58098.portmap.host:58098

Mutex

NsX6nPqhojvO4ihe

Attributes

Install_directory
%LocalAppData%
install_file
USB.exe

aes.plain

Signatures

Detect Xworm Payload 1 IoCs

resource	yara_rule
behavioral2/memory/3540-1-0x00000000006A0000-0x00000000006F0000-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 4 IoCs

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

pid	Process
1768	powershell.exe
3428	powershell.exe
3040	powershell.exe
1788	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-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation	72905a621da6ddc614abf5385b2279779b556792400406b6967ab36a8b6bd39e.exe

Drops startup file 2 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\DisconnectCheats.lnk	72905a621da6ddc614abf5385b2279779b556792400406b6967ab36a8b6bd39e.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\DisconnectCheats.lnk	72905a621da6ddc614abf5385b2279779b556792400406b6967ab36a8b6bd39e.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

pid	Process
1768	powershell.exe
1768	powershell.exe
3428	powershell.exe
3428	powershell.exe
3040	powershell.exe
3040	powershell.exe
1788	powershell.exe
1788	powershell.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

description	pid	Process
Token: SeDebugPrivilege	3540	72905a621da6ddc614abf5385b2279779b556792400406b6967ab36a8b6bd39e.exe
Token: SeDebugPrivilege	1768	powershell.exe
Token: SeDebugPrivilege	3428	powershell.exe
Token: SeDebugPrivilege	3040	powershell.exe
Token: SeDebugPrivilege	1788	powershell.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 3540 wrote to memory of 1768	3540	72905a621da6ddc614abf5385b2279779b556792400406b6967ab36a8b6bd39e.exe	90
PID 3540 wrote to memory of 1768	3540	72905a621da6ddc614abf5385b2279779b556792400406b6967ab36a8b6bd39e.exe	90
PID 3540 wrote to memory of 3428	3540	72905a621da6ddc614abf5385b2279779b556792400406b6967ab36a8b6bd39e.exe	94
PID 3540 wrote to memory of 3428	3540	72905a621da6ddc614abf5385b2279779b556792400406b6967ab36a8b6bd39e.exe	94
PID 3540 wrote to memory of 3040	3540	72905a621da6ddc614abf5385b2279779b556792400406b6967ab36a8b6bd39e.exe	96
PID 3540 wrote to memory of 3040	3540	72905a621da6ddc614abf5385b2279779b556792400406b6967ab36a8b6bd39e.exe	96
PID 3540 wrote to memory of 1788	3540	72905a621da6ddc614abf5385b2279779b556792400406b6967ab36a8b6bd39e.exe	98
PID 3540 wrote to memory of 1788	3540	72905a621da6ddc614abf5385b2279779b556792400406b6967ab36a8b6bd39e.exe	98

C:\Users\Admin\AppData\Local\Temp\72905a621da6ddc614abf5385b2279779b556792400406b6967ab36a8b6bd39e.exe
"C:\Users\Admin\AppData\Local\Temp\72905a621da6ddc614abf5385b2279779b556792400406b6967ab36a8b6bd39e.exe"
1⤵
- Checks computer location settings
- Drops startup file
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3540
- 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\72905a621da6ddc614abf5385b2279779b556792400406b6967ab36a8b6bd39e.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1768
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess '72905a621da6ddc614abf5385b2279779b556792400406b6967ab36a8b6bd39e.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3428
- 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\DisconnectCheats'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3040
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'DisconnectCheats'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1788

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

Loading Replay Monitor...

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
bd5940f08d0be56e65e5f2aaf47c538e

SHA1
d7e31b87866e5e383ab5499da64aba50f03e8443

SHA256
2d2f364c75bd2897504249f42cdf1d19374f5230aad68fa9154ea3d03e3031a6

SHA512
c34d10c7e07da44a180fae9889b61f08903aa84e8ddfa80c31c272b1ef9d491b8cec6b8a4c836c3cb1583fe8f4955c6a8db872515de3a9e10eae09610c959406

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

Filesize
944B

MD5
34f595487e6bfd1d11c7de88ee50356a

SHA1
4caad088c15766cc0fa1f42009260e9a02f953bb

SHA256
0f9a4b52e01cb051052228a55d0515911b7ef5a8db3cf925528c746df511424d

SHA512
10976c5deaf9fac449e703e852c3b08d099f430de2d7c7b8e2525c35d63e28b890e5aab63feff9b20bca0aaf9f35a3ba411aee3fbeee9ea59f90ed25bd617a0b

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

Filesize
944B

MD5
4920f7bec7cdb8ac44637a6af9d2fc6f

SHA1
d4c5e3c9397926ec9bdaccdd955e89f5138b1816

SHA256
8cc607eab702c5690ee5d64f5d34add46b7093c23751506dad728853a434a277

SHA512
321e8178ebd08d680c6d1af467ab73e3055af8c8bb06ee81b1af46bd6718e5a060c339da5a281028c2557ab8d85172921e10363ccd8d411aa0e75f62119838d7

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_taawxtao.cwa.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/1768-13-0x00007FFF45D90000-0x00007FFF46851000-memory.dmp

Filesize
10.8MB

Download
memory/1768-14-0x00007FFF45D90000-0x00007FFF46851000-memory.dmp

Filesize
10.8MB

Download
memory/1768-17-0x00007FFF45D90000-0x00007FFF46851000-memory.dmp

Filesize
10.8MB

Download
memory/1768-12-0x00007FFF45D90000-0x00007FFF46851000-memory.dmp

Filesize
10.8MB

Download
memory/1768-2-0x00000271DB6D0000-0x00000271DB6F2000-memory.dmp

Filesize
136KB

Download
memory/3540-0-0x00007FFF45D93000-0x00007FFF45D95000-memory.dmp

Filesize
8KB

Download
memory/3540-1-0x00000000006A0000-0x00000000006F0000-memory.dmp

Filesize
320KB

Download
memory/3540-55-0x00007FFF45D90000-0x00007FFF46851000-memory.dmp

Filesize
10.8MB

Download
memory/3540-56-0x00007FFF45D93000-0x00007FFF45D95000-memory.dmp

Filesize
8KB

Download
memory/3540-57-0x00007FFF45D90000-0x00007FFF46851000-memory.dmp

Filesize
10.8MB

Download

Analysis

Sharing