xworm | 92e5063aeac11be9c8373cb009dbbe950c8c1ee8dc6caecc5d980dc2b4685635

General

Target

bb57a345bfddb2a779d447fb1f34b36bf08d70793be2705d95244254e264e1e2.exe
Size

619KB
MD5

458f7cbc40f24ca3257cb3803f1a817c
SHA1

419fdb34bacf7fcc9b955bdbca7e4cf9d03e6877
SHA256

bb57a345bfddb2a779d447fb1f34b36bf08d70793be2705d95244254e264e1e2
SHA512

4f4da09b4a42440b0bb8e0e17b313c2b9450456f8ef4469e6f060554ee70fe6f7cef8de30dd72147702e1ec76190276c9d162a2c1492918f600142575f83cff9
SSDEEP

12288:6WET/mr9K+22BEEzFatnd/WeHK4KMSMOV4Tu4Cbpb3W/KuBvnqMUpeNW/:6Wtb3BE/Zq4KJLGT/6bG

Score

10^/10

xworm execution persistence rat trojan

Malware Config

Extracted

Family

xworm

Version

3.1

C2

baldur1.duckdns.org:3360

Mutex

99lkUMNvqj7gQA4z

Attributes

Install_directory
%AppData%
install_file
USB.exe

aes.plain

Signatures

Detect Xworm Payload 5 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2428-30-0x0000000000400000-0x0000000000410000-memory.dmp	family_xworm
behavioral1/memory/2428-29-0x0000000000400000-0x0000000000410000-memory.dmp	family_xworm
behavioral1/memory/2428-28-0x0000000000400000-0x0000000000410000-memory.dmp	family_xworm
behavioral1/memory/2428-25-0x0000000000400000-0x0000000000410000-memory.dmp	family_xworm
behavioral1/memory/2428-23-0x0000000000400000-0x0000000000410000-memory.dmp	family_xworm

Xworm
Xworm is a remote access trojan written in C#.
trojan rat 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

Processes:

powershell.exepowershell.exe

pid process

2580 powershell.exe
2628 powershell.exe

pid	process
2580	powershell.exe
2628	powershell.exe

Drops startup file 2 IoCs

Processes:

bb57a345bfddb2a779d447fb1f34b36bf08d70793be2705d95244254e264e1e2.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\bb57a345bfddb2a779d447fb1f34b36bf08d70793be2705d95244254e264e1e2.lnk	bb57a345bfddb2a779d447fb1f34b36bf08d70793be2705d95244254e264e1e2.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\bb57a345bfddb2a779d447fb1f34b36bf08d70793be2705d95244254e264e1e2.lnk	bb57a345bfddb2a779d447fb1f34b36bf08d70793be2705d95244254e264e1e2.exe

Loads dropped DLL 1 IoCs

Processes:

bb57a345bfddb2a779d447fb1f34b36bf08d70793be2705d95244254e264e1e2.exe

pid process

2428 bb57a345bfddb2a779d447fb1f34b36bf08d70793be2705d95244254e264e1e2.exe

pid	process
2428	bb57a345bfddb2a779d447fb1f34b36bf08d70793be2705d95244254e264e1e2.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

bb57a345bfddb2a779d447fb1f34b36bf08d70793be2705d95244254e264e1e2.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000\Software\Microsoft\Windows\CurrentVersion\Run\bb57a345bfddb2a779d447fb1f34b36bf08d70793be2705d95244254e264e1e2 = "C:\\Users\\Admin\\AppData\\Roaming\\bb57a345bfddb2a779d447fb1f34b36bf08d70793be2705d95244254e264e1e2.exe"	bb57a345bfddb2a779d447fb1f34b36bf08d70793be2705d95244254e264e1e2.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

bb57a345bfddb2a779d447fb1f34b36bf08d70793be2705d95244254e264e1e2.exe

description	pid	process	target process
PID 1732 set thread context of 2428	1732	bb57a345bfddb2a779d447fb1f34b36bf08d70793be2705d95244254e264e1e2.exe	bb57a345bfddb2a779d447fb1f34b36bf08d70793be2705d95244254e264e1e2.exe

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

System Information Discovery
T1082
Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task/Job
T1053

Processes:

schtasks.exe

pid process

2588 schtasks.exe

pid	process
2588	schtasks.exe

Suspicious behavior: EnumeratesProcesses 10 IoCs

Processes:

bb57a345bfddb2a779d447fb1f34b36bf08d70793be2705d95244254e264e1e2.exepowershell.exepowershell.exebb57a345bfddb2a779d447fb1f34b36bf08d70793be2705d95244254e264e1e2.exe

pid	process
1732	bb57a345bfddb2a779d447fb1f34b36bf08d70793be2705d95244254e264e1e2.exe
1732	bb57a345bfddb2a779d447fb1f34b36bf08d70793be2705d95244254e264e1e2.exe
1732	bb57a345bfddb2a779d447fb1f34b36bf08d70793be2705d95244254e264e1e2.exe
1732	bb57a345bfddb2a779d447fb1f34b36bf08d70793be2705d95244254e264e1e2.exe
1732	bb57a345bfddb2a779d447fb1f34b36bf08d70793be2705d95244254e264e1e2.exe
1732	bb57a345bfddb2a779d447fb1f34b36bf08d70793be2705d95244254e264e1e2.exe
1732	bb57a345bfddb2a779d447fb1f34b36bf08d70793be2705d95244254e264e1e2.exe
2628	powershell.exe
2580	powershell.exe
2428	bb57a345bfddb2a779d447fb1f34b36bf08d70793be2705d95244254e264e1e2.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

Processes:

bb57a345bfddb2a779d447fb1f34b36bf08d70793be2705d95244254e264e1e2.exebb57a345bfddb2a779d447fb1f34b36bf08d70793be2705d95244254e264e1e2.exepowershell.exepowershell.exe

description	pid	process
Token: SeDebugPrivilege	1732	bb57a345bfddb2a779d447fb1f34b36bf08d70793be2705d95244254e264e1e2.exe
Token: SeDebugPrivilege	2428	bb57a345bfddb2a779d447fb1f34b36bf08d70793be2705d95244254e264e1e2.exe
Token: SeDebugPrivilege	2628	powershell.exe
Token: SeDebugPrivilege	2580	powershell.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

bb57a345bfddb2a779d447fb1f34b36bf08d70793be2705d95244254e264e1e2.exe

pid process

2428 bb57a345bfddb2a779d447fb1f34b36bf08d70793be2705d95244254e264e1e2.exe

pid	process
2428	bb57a345bfddb2a779d447fb1f34b36bf08d70793be2705d95244254e264e1e2.exe

Suspicious use of WriteProcessMemory 21 IoCs

Processes:

bb57a345bfddb2a779d447fb1f34b36bf08d70793be2705d95244254e264e1e2.exe

description	pid	process	target process
PID 1732 wrote to memory of 2580	1732	bb57a345bfddb2a779d447fb1f34b36bf08d70793be2705d95244254e264e1e2.exe	powershell.exe
PID 1732 wrote to memory of 2580	1732	bb57a345bfddb2a779d447fb1f34b36bf08d70793be2705d95244254e264e1e2.exe	powershell.exe
PID 1732 wrote to memory of 2580	1732	bb57a345bfddb2a779d447fb1f34b36bf08d70793be2705d95244254e264e1e2.exe	powershell.exe
PID 1732 wrote to memory of 2580	1732	bb57a345bfddb2a779d447fb1f34b36bf08d70793be2705d95244254e264e1e2.exe	powershell.exe
PID 1732 wrote to memory of 2628	1732	bb57a345bfddb2a779d447fb1f34b36bf08d70793be2705d95244254e264e1e2.exe	powershell.exe
PID 1732 wrote to memory of 2628	1732	bb57a345bfddb2a779d447fb1f34b36bf08d70793be2705d95244254e264e1e2.exe	powershell.exe
PID 1732 wrote to memory of 2628	1732	bb57a345bfddb2a779d447fb1f34b36bf08d70793be2705d95244254e264e1e2.exe	powershell.exe
PID 1732 wrote to memory of 2628	1732	bb57a345bfddb2a779d447fb1f34b36bf08d70793be2705d95244254e264e1e2.exe	powershell.exe
PID 1732 wrote to memory of 2588	1732	bb57a345bfddb2a779d447fb1f34b36bf08d70793be2705d95244254e264e1e2.exe	schtasks.exe
PID 1732 wrote to memory of 2588	1732	bb57a345bfddb2a779d447fb1f34b36bf08d70793be2705d95244254e264e1e2.exe	schtasks.exe
PID 1732 wrote to memory of 2588	1732	bb57a345bfddb2a779d447fb1f34b36bf08d70793be2705d95244254e264e1e2.exe	schtasks.exe
PID 1732 wrote to memory of 2588	1732	bb57a345bfddb2a779d447fb1f34b36bf08d70793be2705d95244254e264e1e2.exe	schtasks.exe
PID 1732 wrote to memory of 2428	1732	bb57a345bfddb2a779d447fb1f34b36bf08d70793be2705d95244254e264e1e2.exe	bb57a345bfddb2a779d447fb1f34b36bf08d70793be2705d95244254e264e1e2.exe
PID 1732 wrote to memory of 2428	1732	bb57a345bfddb2a779d447fb1f34b36bf08d70793be2705d95244254e264e1e2.exe	bb57a345bfddb2a779d447fb1f34b36bf08d70793be2705d95244254e264e1e2.exe
PID 1732 wrote to memory of 2428	1732	bb57a345bfddb2a779d447fb1f34b36bf08d70793be2705d95244254e264e1e2.exe	bb57a345bfddb2a779d447fb1f34b36bf08d70793be2705d95244254e264e1e2.exe
PID 1732 wrote to memory of 2428	1732	bb57a345bfddb2a779d447fb1f34b36bf08d70793be2705d95244254e264e1e2.exe	bb57a345bfddb2a779d447fb1f34b36bf08d70793be2705d95244254e264e1e2.exe
PID 1732 wrote to memory of 2428	1732	bb57a345bfddb2a779d447fb1f34b36bf08d70793be2705d95244254e264e1e2.exe	bb57a345bfddb2a779d447fb1f34b36bf08d70793be2705d95244254e264e1e2.exe
PID 1732 wrote to memory of 2428	1732	bb57a345bfddb2a779d447fb1f34b36bf08d70793be2705d95244254e264e1e2.exe	bb57a345bfddb2a779d447fb1f34b36bf08d70793be2705d95244254e264e1e2.exe
PID 1732 wrote to memory of 2428	1732	bb57a345bfddb2a779d447fb1f34b36bf08d70793be2705d95244254e264e1e2.exe	bb57a345bfddb2a779d447fb1f34b36bf08d70793be2705d95244254e264e1e2.exe
PID 1732 wrote to memory of 2428	1732	bb57a345bfddb2a779d447fb1f34b36bf08d70793be2705d95244254e264e1e2.exe	bb57a345bfddb2a779d447fb1f34b36bf08d70793be2705d95244254e264e1e2.exe
PID 1732 wrote to memory of 2428	1732	bb57a345bfddb2a779d447fb1f34b36bf08d70793be2705d95244254e264e1e2.exe	bb57a345bfddb2a779d447fb1f34b36bf08d70793be2705d95244254e264e1e2.exe

C:\Users\Admin\AppData\Local\Temp\bb57a345bfddb2a779d447fb1f34b36bf08d70793be2705d95244254e264e1e2.exe
"C:\Users\Admin\AppData\Local\Temp\bb57a345bfddb2a779d447fb1f34b36bf08d70793be2705d95244254e264e1e2.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1732

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\bb57a345bfddb2a779d447fb1f34b36bf08d70793be2705d95244254e264e1e2.exe"
2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2580

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\AkyTYQmExJ.exe"
2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2628

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\AkyTYQmExJ" /XML "C:\Users\Admin\AppData\Local\Temp\tmp731D.tmp"
2⤵
- Creates scheduled task(s)
PID:2588

C:\Users\Admin\AppData\Local\Temp\bb57a345bfddb2a779d447fb1f34b36bf08d70793be2705d95244254e264e1e2.exe
"C:\Users\Admin\AppData\Local\Temp\bb57a345bfddb2a779d447fb1f34b36bf08d70793be2705d95244254e264e1e2.exe"
2⤵
- Drops startup file
- Loads dropped DLL
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:2428

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

Scheduled Task/Job

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

Scheduled Task/Job

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

Scheduled Task/Job

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp731D.tmp

Filesize
1KB

MD5
d50fa9c26e5014c6e067501457cb10d7

SHA1
ce2f9c966121655363b7f5ea9d5f77e4a0f4fd3b

SHA256
1894c688da94e79d56d4f2ecd770f37913f5164901d39dbcceedead3387b177f

SHA512
3775baabf72e147aa041bd0bd883a53b3cf13ef3e58625665417d61249da590fe31701db9473cc19304766d039035bb05506da6a34dfa45093111a6ed8684e38

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\PTUZBAR6EVJQAUXF9APS.temp

Filesize
7KB

MD5
8bd0daae7e63255556d5d0cdc8d32933

SHA1
2b1d196e58d6ec4cfe1ae10c986ca90f586afa39

SHA256
6b752725fa981b3d3785c82e36658eb983e0ea50a5e0a00b0ba1fa3227578a25

SHA512
935790a630387788876d64d9d88214080c9876b55e77ed1354049d014371606c997ce933699caab4a55715fa12b3441e8b8ac4e176de5025add825b4faa6cd1b

Download Submit
C:\Users\Admin\AppData\Roaming\bb57a345bfddb2a779d447fb1f34b36bf08d70793be2705d95244254e264e1e2.exe

Filesize
619KB

MD5
458f7cbc40f24ca3257cb3803f1a817c

SHA1
419fdb34bacf7fcc9b955bdbca7e4cf9d03e6877

SHA256
bb57a345bfddb2a779d447fb1f34b36bf08d70793be2705d95244254e264e1e2

SHA512
4f4da09b4a42440b0bb8e0e17b313c2b9450456f8ef4469e6f060554ee70fe6f7cef8de30dd72147702e1ec76190276c9d162a2c1492918f600142575f83cff9

Download Submit
memory/1732-1-0x00000000001A0000-0x0000000000242000-memory.dmp

Filesize
648KB

Download
memory/1732-2-0x0000000074230000-0x000000007491E000-memory.dmp

Filesize
6.9MB

Download
memory/1732-3-0x0000000001E60000-0x0000000001E82000-memory.dmp

Filesize
136KB

Download
memory/1732-4-0x0000000000670000-0x000000000067C000-memory.dmp

Filesize
48KB

Download
memory/1732-5-0x0000000000720000-0x0000000000730000-memory.dmp

Filesize
64KB

Download
memory/1732-6-0x00000000021B0000-0x0000000002200000-memory.dmp

Filesize
320KB

Download
memory/1732-0-0x000000007423E000-0x000000007423F000-memory.dmp

Filesize
4KB

Download
memory/1732-31-0x0000000074230000-0x000000007491E000-memory.dmp

Filesize
6.9MB

Download
memory/2428-30-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download
memory/2428-27-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2428-25-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download
memory/2428-23-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download
memory/2428-21-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download
memory/2428-19-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download
memory/2428-28-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download
memory/2428-29-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads