Malware Analysis Report

2025-01-02 02:15

Sample ID 240128-ptcl3sceck
Target 7d25f10b8321bf59dc5dd65e23abacfc
SHA256 42a30e607fb699b5ee46ccb50113dd80dbaaae5a1bfe4877b8848a96c60e559d
Tags
xtremerat persistence rat spyware upx
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

42a30e607fb699b5ee46ccb50113dd80dbaaae5a1bfe4877b8848a96c60e559d

Threat Level: Known bad

The file 7d25f10b8321bf59dc5dd65e23abacfc was found to be: Known bad.

Malicious Activity Summary

xtremerat persistence rat spyware upx

Detect XtremeRAT payload

XtremeRAT

Executes dropped EXE

Loads dropped DLL

UPX packed file

Checks computer location settings

Adds Run key to start application

Suspicious use of SetThreadContext

Program crash

Enumerates physical storage devices

Unsigned PE

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-01-28 12:36

Signatures

Unsigned PE

Description Indicator Process Target
N/A N/A N/A N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-01-28 12:36

Reported

2024-01-28 12:39

Platform

win7-20231215-en

Max time kernel

149s

Max time network

123s

Command Line

"C:\Users\Admin\AppData\Local\Temp\7d25f10b8321bf59dc5dd65e23abacfc.exe"

Signatures

Detect XtremeRAT payload

Description Indicator Process Target
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A

XtremeRAT

persistence spyware rat xtremerat

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\systemk.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\server.exe N/A

UPX packed file

upx
Description Indicator Process Target
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-1603059206-2004189698-4139800220-1000\Software\Microsoft\Windows\CurrentVersion\Run\upda88 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\upda57.exe\"" C:\Users\Admin\AppData\Local\Temp\7d25f10b8321bf59dc5dd65e23abacfc.exe N/A

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 2980 set thread context of 3056 N/A C:\Users\Admin\AppData\Local\Temp\7d25f10b8321bf59dc5dd65e23abacfc.exe C:\Users\Admin\AppData\Local\Temp\systemk.exe

Enumerates physical storage devices

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2980 wrote to memory of 3056 N/A C:\Users\Admin\AppData\Local\Temp\7d25f10b8321bf59dc5dd65e23abacfc.exe C:\Users\Admin\AppData\Local\Temp\systemk.exe
PID 2980 wrote to memory of 3056 N/A C:\Users\Admin\AppData\Local\Temp\7d25f10b8321bf59dc5dd65e23abacfc.exe C:\Users\Admin\AppData\Local\Temp\systemk.exe
PID 2980 wrote to memory of 3056 N/A C:\Users\Admin\AppData\Local\Temp\7d25f10b8321bf59dc5dd65e23abacfc.exe C:\Users\Admin\AppData\Local\Temp\systemk.exe
PID 2980 wrote to memory of 3056 N/A C:\Users\Admin\AppData\Local\Temp\7d25f10b8321bf59dc5dd65e23abacfc.exe C:\Users\Admin\AppData\Local\Temp\systemk.exe
PID 2980 wrote to memory of 3056 N/A C:\Users\Admin\AppData\Local\Temp\7d25f10b8321bf59dc5dd65e23abacfc.exe C:\Users\Admin\AppData\Local\Temp\systemk.exe
PID 2980 wrote to memory of 3056 N/A C:\Users\Admin\AppData\Local\Temp\7d25f10b8321bf59dc5dd65e23abacfc.exe C:\Users\Admin\AppData\Local\Temp\systemk.exe
PID 2980 wrote to memory of 3056 N/A C:\Users\Admin\AppData\Local\Temp\7d25f10b8321bf59dc5dd65e23abacfc.exe C:\Users\Admin\AppData\Local\Temp\systemk.exe
PID 2980 wrote to memory of 3056 N/A C:\Users\Admin\AppData\Local\Temp\7d25f10b8321bf59dc5dd65e23abacfc.exe C:\Users\Admin\AppData\Local\Temp\systemk.exe
PID 2980 wrote to memory of 2896 N/A C:\Users\Admin\AppData\Local\Temp\7d25f10b8321bf59dc5dd65e23abacfc.exe C:\Users\Admin\AppData\Local\Temp\server.exe
PID 2980 wrote to memory of 2896 N/A C:\Users\Admin\AppData\Local\Temp\7d25f10b8321bf59dc5dd65e23abacfc.exe C:\Users\Admin\AppData\Local\Temp\server.exe
PID 2980 wrote to memory of 2896 N/A C:\Users\Admin\AppData\Local\Temp\7d25f10b8321bf59dc5dd65e23abacfc.exe C:\Users\Admin\AppData\Local\Temp\server.exe
PID 2980 wrote to memory of 2896 N/A C:\Users\Admin\AppData\Local\Temp\7d25f10b8321bf59dc5dd65e23abacfc.exe C:\Users\Admin\AppData\Local\Temp\server.exe
PID 2896 wrote to memory of 2720 N/A C:\Users\Admin\AppData\Local\Temp\server.exe C:\Windows\SysWOW64\svchost.exe
PID 2896 wrote to memory of 2720 N/A C:\Users\Admin\AppData\Local\Temp\server.exe C:\Windows\SysWOW64\svchost.exe
PID 2896 wrote to memory of 2720 N/A C:\Users\Admin\AppData\Local\Temp\server.exe C:\Windows\SysWOW64\svchost.exe
PID 2896 wrote to memory of 2720 N/A C:\Users\Admin\AppData\Local\Temp\server.exe C:\Windows\SysWOW64\svchost.exe
PID 2896 wrote to memory of 2720 N/A C:\Users\Admin\AppData\Local\Temp\server.exe C:\Windows\SysWOW64\svchost.exe
PID 2896 wrote to memory of 2876 N/A C:\Users\Admin\AppData\Local\Temp\server.exe C:\Program Files\Internet Explorer\iexplore.exe
PID 2896 wrote to memory of 2876 N/A C:\Users\Admin\AppData\Local\Temp\server.exe C:\Program Files\Internet Explorer\iexplore.exe
PID 2896 wrote to memory of 2876 N/A C:\Users\Admin\AppData\Local\Temp\server.exe C:\Program Files\Internet Explorer\iexplore.exe
PID 2896 wrote to memory of 2876 N/A C:\Users\Admin\AppData\Local\Temp\server.exe C:\Program Files\Internet Explorer\iexplore.exe
PID 2896 wrote to memory of 2876 N/A C:\Users\Admin\AppData\Local\Temp\server.exe C:\Program Files\Internet Explorer\iexplore.exe

Processes

C:\Users\Admin\AppData\Local\Temp\7d25f10b8321bf59dc5dd65e23abacfc.exe

"C:\Users\Admin\AppData\Local\Temp\7d25f10b8321bf59dc5dd65e23abacfc.exe"

C:\Users\Admin\AppData\Local\Temp\systemk.exe

C:\Users\Admin\AppData\Local\Temp\systemk.exe

C:\Users\Admin\AppData\Local\Temp\server.exe

"C:\Users\Admin\AppData\Local\Temp\server.exe"

C:\Windows\SysWOW64\svchost.exe

svchost.exe

C:\Program Files\Internet Explorer\iexplore.exe

"C:\Program Files\Internet Explorer\iexplore.exe"

Network

N/A

Files

memory/2980-0-0x0000000074EA0000-0x000000007544B000-memory.dmp

memory/2980-1-0x0000000074EA0000-0x000000007544B000-memory.dmp

memory/2980-2-0x0000000000590000-0x00000000005D0000-memory.dmp

\Users\Admin\AppData\Local\Temp\systemk.exe

MD5 d79efb472a22ad75d501317b21e66b5e
SHA1 24512f54884d3dda2d803457bbd3dcd513356196
SHA256 7255b1d1f001b9d9a5177e1f8063bcc824effe3570e6c19508babe12bb73c7d6
SHA512 7c5a2f516a727ddeb05f9a7c6565375debb05709ac9b95212fc748cba37a2ab81b7d727636141096e4511679ce140b07b37fdf36cfb47d8d1c8accdd24163ae5

memory/3056-10-0x0000000010000000-0x000000001004D000-memory.dmp

memory/3056-11-0x0000000010000000-0x000000001004D000-memory.dmp

memory/3056-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

memory/3056-12-0x0000000010000000-0x000000001004D000-memory.dmp

memory/3056-15-0x0000000010000000-0x000000001004D000-memory.dmp

memory/3056-17-0x0000000000400000-0x0000000000400000-memory.dmp

\Users\Admin\AppData\Local\Temp\server.exe

MD5 a00121c2f045a8f12c9a51a9b3872cb5
SHA1 5cdec4fc03894fbe452156543f2ec4fd72368ae8
SHA256 438d8db46e231e9bd86b469eaaa924924ed69362008a3fc7dd589f4fc105846c
SHA512 98b947e4cb98085b0fbfae69230b09ea6412773c72edd9e69cea0525d2a524c79965003779e1e7aa9150a5d861e4ac9b2e722de87f4c03a54be2bee898d8c780

memory/2980-23-0x0000000010000000-0x000000001004D000-memory.dmp

memory/2980-29-0x0000000010000000-0x000000001004D000-memory.dmp

memory/2896-30-0x0000000010000000-0x000000001004D000-memory.dmp

memory/2980-32-0x0000000074EA0000-0x000000007544B000-memory.dmp

memory/2720-34-0x0000000010000000-0x000000001004D000-memory.dmp

memory/2896-35-0x0000000010000000-0x000000001004D000-memory.dmp

memory/2720-36-0x0000000010000000-0x000000001004D000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-01-28 12:36

Reported

2024-01-28 12:39

Platform

win10v2004-20231215-en

Max time kernel

144s

Max time network

158s

Command Line

"C:\Users\Admin\AppData\Local\Temp\7d25f10b8321bf59dc5dd65e23abacfc.exe"

Signatures

Detect XtremeRAT payload

Description Indicator Process Target
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A

XtremeRAT

persistence spyware rat xtremerat

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-3336304223-2978740688-3645194410-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\7d25f10b8321bf59dc5dd65e23abacfc.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\systemk.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\server.exe N/A

UPX packed file

upx
Description Indicator Process Target
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-3336304223-2978740688-3645194410-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\upda88 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\upda57.exe\"" C:\Users\Admin\AppData\Local\Temp\7d25f10b8321bf59dc5dd65e23abacfc.exe N/A

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 2000 set thread context of 5116 N/A C:\Users\Admin\AppData\Local\Temp\7d25f10b8321bf59dc5dd65e23abacfc.exe C:\Users\Admin\AppData\Local\Temp\systemk.exe

Enumerates physical storage devices

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2000 wrote to memory of 5116 N/A C:\Users\Admin\AppData\Local\Temp\7d25f10b8321bf59dc5dd65e23abacfc.exe C:\Users\Admin\AppData\Local\Temp\systemk.exe
PID 2000 wrote to memory of 5116 N/A C:\Users\Admin\AppData\Local\Temp\7d25f10b8321bf59dc5dd65e23abacfc.exe C:\Users\Admin\AppData\Local\Temp\systemk.exe
PID 2000 wrote to memory of 5116 N/A C:\Users\Admin\AppData\Local\Temp\7d25f10b8321bf59dc5dd65e23abacfc.exe C:\Users\Admin\AppData\Local\Temp\systemk.exe
PID 2000 wrote to memory of 5116 N/A C:\Users\Admin\AppData\Local\Temp\7d25f10b8321bf59dc5dd65e23abacfc.exe C:\Users\Admin\AppData\Local\Temp\systemk.exe
PID 2000 wrote to memory of 5116 N/A C:\Users\Admin\AppData\Local\Temp\7d25f10b8321bf59dc5dd65e23abacfc.exe C:\Users\Admin\AppData\Local\Temp\systemk.exe
PID 2000 wrote to memory of 5116 N/A C:\Users\Admin\AppData\Local\Temp\7d25f10b8321bf59dc5dd65e23abacfc.exe C:\Users\Admin\AppData\Local\Temp\systemk.exe
PID 2000 wrote to memory of 5116 N/A C:\Users\Admin\AppData\Local\Temp\7d25f10b8321bf59dc5dd65e23abacfc.exe C:\Users\Admin\AppData\Local\Temp\systemk.exe
PID 2000 wrote to memory of 5116 N/A C:\Users\Admin\AppData\Local\Temp\7d25f10b8321bf59dc5dd65e23abacfc.exe C:\Users\Admin\AppData\Local\Temp\systemk.exe
PID 2000 wrote to memory of 4104 N/A C:\Users\Admin\AppData\Local\Temp\7d25f10b8321bf59dc5dd65e23abacfc.exe C:\Users\Admin\AppData\Local\Temp\server.exe
PID 2000 wrote to memory of 4104 N/A C:\Users\Admin\AppData\Local\Temp\7d25f10b8321bf59dc5dd65e23abacfc.exe C:\Users\Admin\AppData\Local\Temp\server.exe
PID 2000 wrote to memory of 4104 N/A C:\Users\Admin\AppData\Local\Temp\7d25f10b8321bf59dc5dd65e23abacfc.exe C:\Users\Admin\AppData\Local\Temp\server.exe
PID 4104 wrote to memory of 2996 N/A C:\Users\Admin\AppData\Local\Temp\server.exe C:\Windows\SysWOW64\svchost.exe
PID 4104 wrote to memory of 2996 N/A C:\Users\Admin\AppData\Local\Temp\server.exe C:\Windows\SysWOW64\svchost.exe
PID 4104 wrote to memory of 2996 N/A C:\Users\Admin\AppData\Local\Temp\server.exe C:\Windows\SysWOW64\svchost.exe
PID 4104 wrote to memory of 2996 N/A C:\Users\Admin\AppData\Local\Temp\server.exe C:\Windows\SysWOW64\svchost.exe
PID 4104 wrote to memory of 1516 N/A C:\Users\Admin\AppData\Local\Temp\server.exe C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
PID 4104 wrote to memory of 1516 N/A C:\Users\Admin\AppData\Local\Temp\server.exe C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
PID 4104 wrote to memory of 1516 N/A C:\Users\Admin\AppData\Local\Temp\server.exe C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe

Processes

C:\Users\Admin\AppData\Local\Temp\7d25f10b8321bf59dc5dd65e23abacfc.exe

"C:\Users\Admin\AppData\Local\Temp\7d25f10b8321bf59dc5dd65e23abacfc.exe"

C:\Users\Admin\AppData\Local\Temp\systemk.exe

C:\Users\Admin\AppData\Local\Temp\systemk.exe

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 5116 -ip 5116

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 5116 -s 12

C:\Users\Admin\AppData\Local\Temp\server.exe

"C:\Users\Admin\AppData\Local\Temp\server.exe"

C:\Windows\SysWOW64\svchost.exe

svchost.exe

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe

"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 2996 -ip 2996

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2996 -s 480

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 516 -p 2996 -ip 2996

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2996 -s 488

Network

Country Destination Domain Proto
NL 52.142.223.178:80 tcp
US 8.8.8.8:53 58.55.71.13.in-addr.arpa udp
US 8.8.8.8:53 194.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 134.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 133.211.185.52.in-addr.arpa udp
US 8.8.8.8:53 16.234.44.23.in-addr.arpa udp
US 8.8.8.8:53 183.59.114.20.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 18.134.221.88.in-addr.arpa udp
US 8.8.8.8:53 173.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 48.229.111.52.in-addr.arpa udp
US 8.8.8.8:53 3.173.189.20.in-addr.arpa udp

Files

memory/2000-0-0x0000000074640000-0x0000000074BF1000-memory.dmp

memory/2000-2-0x0000000000FB0000-0x0000000000FC0000-memory.dmp

memory/2000-1-0x0000000074640000-0x0000000074BF1000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\systemk.exe

MD5 d79efb472a22ad75d501317b21e66b5e
SHA1 24512f54884d3dda2d803457bbd3dcd513356196
SHA256 7255b1d1f001b9d9a5177e1f8063bcc824effe3570e6c19508babe12bb73c7d6
SHA512 7c5a2f516a727ddeb05f9a7c6565375debb05709ac9b95212fc748cba37a2ab81b7d727636141096e4511679ce140b07b37fdf36cfb47d8d1c8accdd24163ae5

memory/5116-5-0x0000000010000000-0x000000001004D000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\server.exe

MD5 a00121c2f045a8f12c9a51a9b3872cb5
SHA1 5cdec4fc03894fbe452156543f2ec4fd72368ae8
SHA256 438d8db46e231e9bd86b469eaaa924924ed69362008a3fc7dd589f4fc105846c
SHA512 98b947e4cb98085b0fbfae69230b09ea6412773c72edd9e69cea0525d2a524c79965003779e1e7aa9150a5d861e4ac9b2e722de87f4c03a54be2bee898d8c780

memory/4104-16-0x0000000010000000-0x000000001004D000-memory.dmp

memory/2000-18-0x0000000074640000-0x0000000074BF1000-memory.dmp

memory/2996-19-0x0000000010000000-0x000000001004D000-memory.dmp

memory/4104-20-0x0000000010000000-0x000000001004D000-memory.dmp

memory/2996-21-0x0000000010000000-0x000000001004D000-memory.dmp

memory/5116-22-0x0000000000400000-0x0000000000400000-memory.dmp