xworm | ff58fce3cca0cbcb18d3be37f8bbb6fd507d84723de229fb1522b84ff029170f

Analysis

max time kernel
123s
max time network
134s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
08/11/2024, 04:20

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General

Target

ff58fce3cca0cbcb18d3be37f8bbb6fd507d84723de229fb1522b84ff029170f.exe
Size

691KB
MD5

cd0e4ac274a929010fed125c319c3e69
SHA1

cc530ce42f9b3024cf491eef61dfbf4dcd905176
SHA256

ff58fce3cca0cbcb18d3be37f8bbb6fd507d84723de229fb1522b84ff029170f
SHA512

b5fd740e1ceff2a6d999f5e6fb0ac89fc74ce61aa58eae5526ede9ab0001eeecc26ef1ad80d6e501a4121b4e5a2cacd19d7e52488b895b283c26cd1d94ea4c18
SSDEEP

12288:qTfdqmnKE2pb57I+xdvCss0BW9T3PG6dWHb:qv2t5s+qj049DGAW7

Score

10^/10

xworm discovery execution rat trojan

Malware Config

Extracted

Family

xworm

Version

3.1

pkaraven.duckdns.org:9387

Mutex

AXupjNCu673XjSaT

Attributes

Install_directory
%AppData%
install_file
USB.exe

aes.plain

Signatures

Detect Xworm Payload 5 IoCs

resource	yara_rule
behavioral1/memory/2624-29-0x0000000000400000-0x0000000000410000-memory.dmp	family_xworm
behavioral1/memory/2624-30-0x0000000000400000-0x0000000000410000-memory.dmp	family_xworm
behavioral1/memory/2624-28-0x0000000000400000-0x0000000000410000-memory.dmp	family_xworm
behavioral1/memory/2624-25-0x0000000000400000-0x0000000000410000-memory.dmp	family_xworm
behavioral1/memory/2624-23-0x0000000000400000-0x0000000000410000-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 5 IoCs

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

execution

PowerShell

T1059.001

pid	Process
2836	powershell.exe
2768	powershell.exe
1088	powershell.exe
1740	powershell.exe
1596	powershell.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\ff58fce3cca0cbcb18d3be37f8bbb6fd507d84723de229fb1522b84ff029170f.lnk	ff58fce3cca0cbcb18d3be37f8bbb6fd507d84723de229fb1522b84ff029170f.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\ff58fce3cca0cbcb18d3be37f8bbb6fd507d84723de229fb1522b84ff029170f.lnk	ff58fce3cca0cbcb18d3be37f8bbb6fd507d84723de229fb1522b84ff029170f.exe

Loads dropped DLL 1 IoCs

pid	Process
2624	ff58fce3cca0cbcb18d3be37f8bbb6fd507d84723de229fb1522b84ff029170f.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2068 set thread context of 2624	2068	ff58fce3cca0cbcb18d3be37f8bbb6fd507d84723de229fb1522b84ff029170f.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 8 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	ff58fce3cca0cbcb18d3be37f8bbb6fd507d84723de229fb1522b84ff029170f.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	ff58fce3cca0cbcb18d3be37f8bbb6fd507d84723de229fb1522b84ff029170f.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	powershell.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
2952	schtasks.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
2068	ff58fce3cca0cbcb18d3be37f8bbb6fd507d84723de229fb1522b84ff029170f.exe
2068	ff58fce3cca0cbcb18d3be37f8bbb6fd507d84723de229fb1522b84ff029170f.exe
2836	powershell.exe
2768	powershell.exe
1088	powershell.exe
1740	powershell.exe
1596	powershell.exe
2624	ff58fce3cca0cbcb18d3be37f8bbb6fd507d84723de229fb1522b84ff029170f.exe

Suspicious use of AdjustPrivilegeToken 7 IoCs

description	pid	Process
Token: SeDebugPrivilege	2068	ff58fce3cca0cbcb18d3be37f8bbb6fd507d84723de229fb1522b84ff029170f.exe
Token: SeDebugPrivilege	2624	ff58fce3cca0cbcb18d3be37f8bbb6fd507d84723de229fb1522b84ff029170f.exe
Token: SeDebugPrivilege	2836	powershell.exe
Token: SeDebugPrivilege	2768	powershell.exe
Token: SeDebugPrivilege	1088	powershell.exe
Token: SeDebugPrivilege	1740	powershell.exe
Token: SeDebugPrivilege	1596	powershell.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2624	ff58fce3cca0cbcb18d3be37f8bbb6fd507d84723de229fb1522b84ff029170f.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 2068 wrote to memory of 2836	2068	ff58fce3cca0cbcb18d3be37f8bbb6fd507d84723de229fb1522b84ff029170f.exe	31
PID 2068 wrote to memory of 2836	2068	ff58fce3cca0cbcb18d3be37f8bbb6fd507d84723de229fb1522b84ff029170f.exe	31
PID 2068 wrote to memory of 2836	2068	ff58fce3cca0cbcb18d3be37f8bbb6fd507d84723de229fb1522b84ff029170f.exe	31
PID 2068 wrote to memory of 2836	2068	ff58fce3cca0cbcb18d3be37f8bbb6fd507d84723de229fb1522b84ff029170f.exe	31
PID 2068 wrote to memory of 2768	2068	ff58fce3cca0cbcb18d3be37f8bbb6fd507d84723de229fb1522b84ff029170f.exe	33
PID 2068 wrote to memory of 2768	2068	ff58fce3cca0cbcb18d3be37f8bbb6fd507d84723de229fb1522b84ff029170f.exe	33
PID 2068 wrote to memory of 2768	2068	ff58fce3cca0cbcb18d3be37f8bbb6fd507d84723de229fb1522b84ff029170f.exe	33
PID 2068 wrote to memory of 2768	2068	ff58fce3cca0cbcb18d3be37f8bbb6fd507d84723de229fb1522b84ff029170f.exe	33
PID 2068 wrote to memory of 2952	2068	ff58fce3cca0cbcb18d3be37f8bbb6fd507d84723de229fb1522b84ff029170f.exe	34
PID 2068 wrote to memory of 2952	2068	ff58fce3cca0cbcb18d3be37f8bbb6fd507d84723de229fb1522b84ff029170f.exe	34
PID 2068 wrote to memory of 2952	2068	ff58fce3cca0cbcb18d3be37f8bbb6fd507d84723de229fb1522b84ff029170f.exe	34
PID 2068 wrote to memory of 2952	2068	ff58fce3cca0cbcb18d3be37f8bbb6fd507d84723de229fb1522b84ff029170f.exe	34
PID 2068 wrote to memory of 2624	2068	ff58fce3cca0cbcb18d3be37f8bbb6fd507d84723de229fb1522b84ff029170f.exe	37
PID 2068 wrote to memory of 2624	2068	ff58fce3cca0cbcb18d3be37f8bbb6fd507d84723de229fb1522b84ff029170f.exe	37
PID 2068 wrote to memory of 2624	2068	ff58fce3cca0cbcb18d3be37f8bbb6fd507d84723de229fb1522b84ff029170f.exe	37
PID 2068 wrote to memory of 2624	2068	ff58fce3cca0cbcb18d3be37f8bbb6fd507d84723de229fb1522b84ff029170f.exe	37
PID 2068 wrote to memory of 2624	2068	ff58fce3cca0cbcb18d3be37f8bbb6fd507d84723de229fb1522b84ff029170f.exe	37
PID 2068 wrote to memory of 2624	2068	ff58fce3cca0cbcb18d3be37f8bbb6fd507d84723de229fb1522b84ff029170f.exe	37
PID 2068 wrote to memory of 2624	2068	ff58fce3cca0cbcb18d3be37f8bbb6fd507d84723de229fb1522b84ff029170f.exe	37
PID 2068 wrote to memory of 2624	2068	ff58fce3cca0cbcb18d3be37f8bbb6fd507d84723de229fb1522b84ff029170f.exe	37
PID 2068 wrote to memory of 2624	2068	ff58fce3cca0cbcb18d3be37f8bbb6fd507d84723de229fb1522b84ff029170f.exe	37
PID 2624 wrote to memory of 1088	2624	ff58fce3cca0cbcb18d3be37f8bbb6fd507d84723de229fb1522b84ff029170f.exe	38
PID 2624 wrote to memory of 1088	2624	ff58fce3cca0cbcb18d3be37f8bbb6fd507d84723de229fb1522b84ff029170f.exe	38
PID 2624 wrote to memory of 1088	2624	ff58fce3cca0cbcb18d3be37f8bbb6fd507d84723de229fb1522b84ff029170f.exe	38
PID 2624 wrote to memory of 1088	2624	ff58fce3cca0cbcb18d3be37f8bbb6fd507d84723de229fb1522b84ff029170f.exe	38
PID 2624 wrote to memory of 1740	2624	ff58fce3cca0cbcb18d3be37f8bbb6fd507d84723de229fb1522b84ff029170f.exe	40
PID 2624 wrote to memory of 1740	2624	ff58fce3cca0cbcb18d3be37f8bbb6fd507d84723de229fb1522b84ff029170f.exe	40
PID 2624 wrote to memory of 1740	2624	ff58fce3cca0cbcb18d3be37f8bbb6fd507d84723de229fb1522b84ff029170f.exe	40
PID 2624 wrote to memory of 1740	2624	ff58fce3cca0cbcb18d3be37f8bbb6fd507d84723de229fb1522b84ff029170f.exe	40
PID 2624 wrote to memory of 1596	2624	ff58fce3cca0cbcb18d3be37f8bbb6fd507d84723de229fb1522b84ff029170f.exe	42
PID 2624 wrote to memory of 1596	2624	ff58fce3cca0cbcb18d3be37f8bbb6fd507d84723de229fb1522b84ff029170f.exe	42
PID 2624 wrote to memory of 1596	2624	ff58fce3cca0cbcb18d3be37f8bbb6fd507d84723de229fb1522b84ff029170f.exe	42
PID 2624 wrote to memory of 1596	2624	ff58fce3cca0cbcb18d3be37f8bbb6fd507d84723de229fb1522b84ff029170f.exe	42

C:\Users\Admin\AppData\Local\Temp\ff58fce3cca0cbcb18d3be37f8bbb6fd507d84723de229fb1522b84ff029170f.exe
"C:\Users\Admin\AppData\Local\Temp\ff58fce3cca0cbcb18d3be37f8bbb6fd507d84723de229fb1522b84ff029170f.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2068
- 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\ff58fce3cca0cbcb18d3be37f8bbb6fd507d84723de229fb1522b84ff029170f.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2836
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\uuWsHcHRt.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2768
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\uuWsHcHRt" /XML "C:\Users\Admin\AppData\Local\Temp\tmpFB5F.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2952
- C:\Users\Admin\AppData\Local\Temp\ff58fce3cca0cbcb18d3be37f8bbb6fd507d84723de229fb1522b84ff029170f.exe
  "C:\Users\Admin\AppData\Local\Temp\ff58fce3cca0cbcb18d3be37f8bbb6fd507d84723de229fb1522b84ff029170f.exe"
  2⤵
  - Drops startup file
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2624
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\ff58fce3cca0cbcb18d3be37f8bbb6fd507d84723de229fb1522b84ff029170f.exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:1088
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'ff58fce3cca0cbcb18d3be37f8bbb6fd507d84723de229fb1522b84ff029170f.exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:1740
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Roaming\ff58fce3cca0cbcb18d3be37f8bbb6fd507d84723de229fb1522b84ff029170f.exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:1596

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmpFB5F.tmp

Filesize
1KB

MD5
bdf0de782f7fc87e2dfa7887b5f93177

SHA1
7c7e7e79a5dd812fd60907f235e8664e929d3b6e

SHA256
e048d29645673bb2a94a33c5c724cc4828d56680f34cf75dadb725bdb0a7b0c3

SHA512
c16595282d44976063b0d73c6d852bfd33f3bd59ca032e290bbfc47d284ba192eab6fe863d56858cf05a37cbcd13b85921d01a52c1ee46b36d9903cd18e8b75b

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\d93f411851d7c929.customDestinations-ms

Filesize
7KB

MD5
7848abdc2e1c15454ed9cc2053d1e046

SHA1
7a999ffc8f1f930d1b477443c1c6416314cb4217

SHA256
7e208a191a3db56314e251d4da76758a074aa1c860cf6b50a06dc2f211bd4d3b

SHA512
46ed9dc75fd4c89677ecc0b7b5dab76a08eadf3386e52f468a4f807cb2a5eaa0da8458f5cc0901d676bb8842405f65311ac90494b379fd46d3f059d724faad23

Download Submit
\Users\Admin\AppData\Roaming\ff58fce3cca0cbcb18d3be37f8bbb6fd507d84723de229fb1522b84ff029170f.exe

Filesize
691KB

MD5
cd0e4ac274a929010fed125c319c3e69

SHA1
cc530ce42f9b3024cf491eef61dfbf4dcd905176

SHA256
ff58fce3cca0cbcb18d3be37f8bbb6fd507d84723de229fb1522b84ff029170f

SHA512
b5fd740e1ceff2a6d999f5e6fb0ac89fc74ce61aa58eae5526ede9ab0001eeecc26ef1ad80d6e501a4121b4e5a2cacd19d7e52488b895b283c26cd1d94ea4c18

Download Submit
memory/2068-31-0x00000000740C0000-0x00000000747AE000-memory.dmp

Filesize
6.9MB

Download
memory/2068-1-0x0000000000E90000-0x0000000000F42000-memory.dmp

Filesize
712KB

Download
memory/2068-2-0x00000000740C0000-0x00000000747AE000-memory.dmp

Filesize
6.9MB

Download
memory/2068-3-0x00000000740CE000-0x00000000740CF000-memory.dmp

Filesize
4KB

Download
memory/2068-4-0x00000000740C0000-0x00000000747AE000-memory.dmp

Filesize
6.9MB

Download
memory/2068-5-0x0000000000850000-0x000000000086C000-memory.dmp

Filesize
112KB

Download
memory/2068-6-0x0000000000970000-0x00000000009C0000-memory.dmp

Filesize
320KB

Download
memory/2068-0-0x00000000740CE000-0x00000000740CF000-memory.dmp

Filesize
4KB

Download
memory/2624-29-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download
memory/2624-27-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2624-25-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download
memory/2624-23-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download
memory/2624-21-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download
memory/2624-28-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download
memory/2624-30-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download
memory/2624-19-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download