xworm | 86ffe66472be6ff6bd7931001bf0bfcb5f88bd76bac7c5ae1b366c2d6234088f

General

Target

86ffe66472be6ff6bd7931001bf0bfcb5f88bd76bac7c5ae1b366c2d6234088f.exe
Size

551KB
MD5

5ed7cd000af88d1d45ab776014efc310
SHA1

90aafc2ab9d80ee249ec8ce2482156c2964e1231
SHA256

86ffe66472be6ff6bd7931001bf0bfcb5f88bd76bac7c5ae1b366c2d6234088f
SHA512

74a7ee091fd3d5e9ade00011874b8c7f216b06845925a174b44dc399ca8f435939c1607ea7ed75cc4329a8a0023a0fb5423dde05739bc78b19109c23a3dc95fd
SSDEEP

12288:0/Yp50g7ZeK50g72OVVyEqJUhkPbwoxC0WLU/1RQIXp0W:Jp5F7AK5F7PV8jJUhoC0WIdRZ

Score

10^/10

xworm discovery execution rat trojan

Malware Config

Extracted

Family

xworm

Version

3.1

C2

193.23.160.31:1760

Mutex

H1hx0NXdYm1SIVHw

Attributes

Install_directory
%AppData%
install_file
USB.exe

aes.plain

Signatures

Detect Xworm Payload 5 IoCs

resource	yara_rule
behavioral1/memory/1284-28-0x0000000000400000-0x0000000000412000-memory.dmp	family_xworm
behavioral1/memory/1284-31-0x0000000000400000-0x0000000000412000-memory.dmp	family_xworm
behavioral1/memory/1284-29-0x0000000000400000-0x0000000000412000-memory.dmp	family_xworm
behavioral1/memory/1284-25-0x0000000000400000-0x0000000000412000-memory.dmp	family_xworm
behavioral1/memory/1284-23-0x0000000000400000-0x0000000000412000-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
2740	powershell.exe
2864	powershell.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
4	ip-api.com

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1260 set thread context of 1284	1260	86ffe66472be6ff6bd7931001bf0bfcb5f88bd76bac7c5ae1b366c2d6234088f.exe	37

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 5 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	86ffe66472be6ff6bd7931001bf0bfcb5f88bd76bac7c5ae1b366c2d6234088f.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	86ffe66472be6ff6bd7931001bf0bfcb5f88bd76bac7c5ae1b366c2d6234088f.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
2780	schtasks.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1260	86ffe66472be6ff6bd7931001bf0bfcb5f88bd76bac7c5ae1b366c2d6234088f.exe
2740	powershell.exe
2864	powershell.exe
1260	86ffe66472be6ff6bd7931001bf0bfcb5f88bd76bac7c5ae1b366c2d6234088f.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	1260	86ffe66472be6ff6bd7931001bf0bfcb5f88bd76bac7c5ae1b366c2d6234088f.exe
Token: SeDebugPrivilege	2740	powershell.exe
Token: SeDebugPrivilege	2864	powershell.exe
Token: SeDebugPrivilege	1284	86ffe66472be6ff6bd7931001bf0bfcb5f88bd76bac7c5ae1b366c2d6234088f.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 1260 wrote to memory of 2740	1260	86ffe66472be6ff6bd7931001bf0bfcb5f88bd76bac7c5ae1b366c2d6234088f.exe	31
PID 1260 wrote to memory of 2740	1260	86ffe66472be6ff6bd7931001bf0bfcb5f88bd76bac7c5ae1b366c2d6234088f.exe	31
PID 1260 wrote to memory of 2740	1260	86ffe66472be6ff6bd7931001bf0bfcb5f88bd76bac7c5ae1b366c2d6234088f.exe	31
PID 1260 wrote to memory of 2740	1260	86ffe66472be6ff6bd7931001bf0bfcb5f88bd76bac7c5ae1b366c2d6234088f.exe	31
PID 1260 wrote to memory of 2864	1260	86ffe66472be6ff6bd7931001bf0bfcb5f88bd76bac7c5ae1b366c2d6234088f.exe	33
PID 1260 wrote to memory of 2864	1260	86ffe66472be6ff6bd7931001bf0bfcb5f88bd76bac7c5ae1b366c2d6234088f.exe	33
PID 1260 wrote to memory of 2864	1260	86ffe66472be6ff6bd7931001bf0bfcb5f88bd76bac7c5ae1b366c2d6234088f.exe	33
PID 1260 wrote to memory of 2864	1260	86ffe66472be6ff6bd7931001bf0bfcb5f88bd76bac7c5ae1b366c2d6234088f.exe	33
PID 1260 wrote to memory of 2780	1260	86ffe66472be6ff6bd7931001bf0bfcb5f88bd76bac7c5ae1b366c2d6234088f.exe	35
PID 1260 wrote to memory of 2780	1260	86ffe66472be6ff6bd7931001bf0bfcb5f88bd76bac7c5ae1b366c2d6234088f.exe	35
PID 1260 wrote to memory of 2780	1260	86ffe66472be6ff6bd7931001bf0bfcb5f88bd76bac7c5ae1b366c2d6234088f.exe	35
PID 1260 wrote to memory of 2780	1260	86ffe66472be6ff6bd7931001bf0bfcb5f88bd76bac7c5ae1b366c2d6234088f.exe	35
PID 1260 wrote to memory of 1284	1260	86ffe66472be6ff6bd7931001bf0bfcb5f88bd76bac7c5ae1b366c2d6234088f.exe	37
PID 1260 wrote to memory of 1284	1260	86ffe66472be6ff6bd7931001bf0bfcb5f88bd76bac7c5ae1b366c2d6234088f.exe	37
PID 1260 wrote to memory of 1284	1260	86ffe66472be6ff6bd7931001bf0bfcb5f88bd76bac7c5ae1b366c2d6234088f.exe	37
PID 1260 wrote to memory of 1284	1260	86ffe66472be6ff6bd7931001bf0bfcb5f88bd76bac7c5ae1b366c2d6234088f.exe	37
PID 1260 wrote to memory of 1284	1260	86ffe66472be6ff6bd7931001bf0bfcb5f88bd76bac7c5ae1b366c2d6234088f.exe	37
PID 1260 wrote to memory of 1284	1260	86ffe66472be6ff6bd7931001bf0bfcb5f88bd76bac7c5ae1b366c2d6234088f.exe	37
PID 1260 wrote to memory of 1284	1260	86ffe66472be6ff6bd7931001bf0bfcb5f88bd76bac7c5ae1b366c2d6234088f.exe	37
PID 1260 wrote to memory of 1284	1260	86ffe66472be6ff6bd7931001bf0bfcb5f88bd76bac7c5ae1b366c2d6234088f.exe	37
PID 1260 wrote to memory of 1284	1260	86ffe66472be6ff6bd7931001bf0bfcb5f88bd76bac7c5ae1b366c2d6234088f.exe	37

C:\Users\Admin\AppData\Local\Temp\86ffe66472be6ff6bd7931001bf0bfcb5f88bd76bac7c5ae1b366c2d6234088f.exe
"C:\Users\Admin\AppData\Local\Temp\86ffe66472be6ff6bd7931001bf0bfcb5f88bd76bac7c5ae1b366c2d6234088f.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1260
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\86ffe66472be6ff6bd7931001bf0bfcb5f88bd76bac7c5ae1b366c2d6234088f.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2740
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\nlqtEJTrYJYRHN.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2864
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\nlqtEJTrYJYRHN" /XML "C:\Users\Admin\AppData\Local\Temp\tmpDB80.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2780
- C:\Users\Admin\AppData\Local\Temp\86ffe66472be6ff6bd7931001bf0bfcb5f88bd76bac7c5ae1b366c2d6234088f.exe
  "C:\Users\Admin\AppData\Local\Temp\86ffe66472be6ff6bd7931001bf0bfcb5f88bd76bac7c5ae1b366c2d6234088f.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:1284

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

System Information Discovery

1

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\Temp\tmpDB80.tmp

Filesize
1KB

MD5
819ebd125417bd5d82a869e392ec1f7e

SHA1
2a01129bcc7c7513b4e28e334dd8c71c2b337c07

SHA256
8dbb0ed71d1d0bca79e72a42294a6c7d3cb04641442c89c33792cc9405face3c

SHA512
31aaebe1d6c7566b61fb0ae8348757d8e357c509b20cb2383064d656e14659c12fbdf8b73a3b8a3375555fb14ba3e58ce09a75dbfbb56ae7f2a9a6c796c0fcb1

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\OHOSPJPJL4OYCTPP0UKU.temp

Filesize
7KB

MD5
25f91c480d268a887dd38c60d004da34

SHA1
1f5a8bfc137d075e56e0b7e8042126dbe50c469e

SHA256
58b643196995be6e32f27d25e1e95bb6f608eadc9f7eceac4e74033a652d05a5

SHA512
6528beadb04ce3b99d1bfcb3af5bf35f62b019d4741491cfd2834c782f9615006041d0ea9ac65778267cb548180f2de620ba2bc498681de9fd5d6f891e814642

Download Submit
memory/1260-4-0x0000000074E8E000-0x0000000074E8F000-memory.dmp

Filesize
4KB

Download
memory/1260-32-0x0000000074E80000-0x000000007556E000-memory.dmp

Filesize
6.9MB

Download
memory/1260-0-0x0000000074E8E000-0x0000000074E8F000-memory.dmp

Filesize
4KB

Download
memory/1260-5-0x0000000074E80000-0x000000007556E000-memory.dmp

Filesize
6.9MB

Download
memory/1260-6-0x0000000004BE0000-0x0000000004C36000-memory.dmp

Filesize
344KB

Download
memory/1260-2-0x0000000074E80000-0x000000007556E000-memory.dmp

Filesize
6.9MB

Download
memory/1260-1-0x0000000000C20000-0x0000000000CB0000-memory.dmp

Filesize
576KB

Download
memory/1260-3-0x00000000009A0000-0x00000000009B8000-memory.dmp

Filesize
96KB

Download
memory/1284-28-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/1284-29-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/1284-27-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1284-25-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/1284-23-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/1284-21-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/1284-19-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/1284-31-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads