Malware Analysis Report

2025-06-16 01:06

Sample ID 231226-vn74paghf6
Target 7f3288ccbcf8a013ab271528d5592fd2
SHA256 52b4760df29374cf59babed736100e689a10ecf9a8ab651d28010f6489fb4e46
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: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

52b4760df29374cf59babed736100e689a10ecf9a8ab651d28010f6489fb4e46

Threat Level: Known bad

The file 7f3288ccbcf8a013ab271528d5592fd2 was found to be: Known bad.

Malicious Activity Summary

xtremerat persistence rat spyware upx

Detect XtremeRAT payload

XtremeRAT

Modifies Installed Components in the registry

UPX packed file

Adds Run key to start application

Drops file in System32 directory

Suspicious use of SetThreadContext

Unsigned PE

Enumerates physical storage devices

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2023-12-26 17:09

Signatures

Unsigned PE

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

Analysis: behavioral2

Detonation Overview

Submitted

2023-12-26 17:09

Reported

2024-01-06 21:51

Platform

win10v2004-20231215-en

Max time kernel

149s

Max time network

149s

Command Line

"C:\Users\Admin\AppData\Local\Temp\7f3288ccbcf8a013ab271528d5592fd2.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
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

Modifies Installed Components in the registry

persistence
Description Indicator Process Target
Key created \REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Active Setup\Installed Components\{5460C4DF-B266-909E-CB58-E32B79832EB2} C:\Users\Admin\AppData\Local\Temp\7f3288ccbcf8a013ab271528d5592fd2.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{5460C4DF-B266-909E-CB58-E32B79832EB2}\StubPath = "C:\\Windows\\system32\\InstallDir\\Server.exe restart" C:\Users\Admin\AppData\Local\Temp\7f3288ccbcf8a013ab271528d5592fd2.exe N/A
Key created \REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Active Setup\Installed Components\{5460C4DF-B266-909E-CB58-E32B79832EB2} C:\Windows\SysWOW64\svchost.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{5460C4DF-B266-909E-CB58-E32B79832EB2}\StubPath = "C:\\Windows\\system32\\InstallDir\\Server.exe restart" C:\Windows\SysWOW64\svchost.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

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-3791175113-1062217823-1177695025-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\HKCU = "C:\\Windows\\system32\\InstallDir\\Server.exe" C:\Users\Admin\AppData\Local\Temp\7f3288ccbcf8a013ab271528d5592fd2.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\HKLM = "C:\\Windows\\system32\\InstallDir\\Server.exe" C:\Windows\SysWOW64\svchost.exe N/A
Set value (str) \REGISTRY\USER\S-1-5-21-3791175113-1062217823-1177695025-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\HKCU = "C:\\Windows\\system32\\InstallDir\\Server.exe" C:\Windows\SysWOW64\svchost.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\HKLM = "C:\\Windows\\system32\\InstallDir\\Server.exe" C:\Users\Admin\AppData\Local\Temp\7f3288ccbcf8a013ab271528d5592fd2.exe N/A

Drops file in System32 directory

Description Indicator Process Target
File opened for modification C:\Windows\SysWOW64\InstallDir\Server.exe C:\Users\Admin\AppData\Local\Temp\7f3288ccbcf8a013ab271528d5592fd2.exe N/A
File created C:\Windows\SysWOW64\InstallDir\Server.exe C:\Users\Admin\AppData\Local\Temp\7f3288ccbcf8a013ab271528d5592fd2.exe N/A

Enumerates physical storage devices

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 3768 wrote to memory of 4352 N/A C:\Users\Admin\AppData\Local\Temp\7f3288ccbcf8a013ab271528d5592fd2.exe C:\Users\Admin\AppData\Local\Temp\7f3288ccbcf8a013ab271528d5592fd2.exe
PID 3768 wrote to memory of 4352 N/A C:\Users\Admin\AppData\Local\Temp\7f3288ccbcf8a013ab271528d5592fd2.exe C:\Users\Admin\AppData\Local\Temp\7f3288ccbcf8a013ab271528d5592fd2.exe
PID 3768 wrote to memory of 4352 N/A C:\Users\Admin\AppData\Local\Temp\7f3288ccbcf8a013ab271528d5592fd2.exe C:\Users\Admin\AppData\Local\Temp\7f3288ccbcf8a013ab271528d5592fd2.exe
PID 3768 wrote to memory of 4352 N/A C:\Users\Admin\AppData\Local\Temp\7f3288ccbcf8a013ab271528d5592fd2.exe C:\Users\Admin\AppData\Local\Temp\7f3288ccbcf8a013ab271528d5592fd2.exe
PID 3768 wrote to memory of 4352 N/A C:\Users\Admin\AppData\Local\Temp\7f3288ccbcf8a013ab271528d5592fd2.exe C:\Users\Admin\AppData\Local\Temp\7f3288ccbcf8a013ab271528d5592fd2.exe
PID 3768 wrote to memory of 4352 N/A C:\Users\Admin\AppData\Local\Temp\7f3288ccbcf8a013ab271528d5592fd2.exe C:\Users\Admin\AppData\Local\Temp\7f3288ccbcf8a013ab271528d5592fd2.exe
PID 3768 wrote to memory of 4352 N/A C:\Users\Admin\AppData\Local\Temp\7f3288ccbcf8a013ab271528d5592fd2.exe C:\Users\Admin\AppData\Local\Temp\7f3288ccbcf8a013ab271528d5592fd2.exe
PID 3768 wrote to memory of 4352 N/A C:\Users\Admin\AppData\Local\Temp\7f3288ccbcf8a013ab271528d5592fd2.exe C:\Users\Admin\AppData\Local\Temp\7f3288ccbcf8a013ab271528d5592fd2.exe
PID 4352 wrote to memory of 3076 N/A C:\Users\Admin\AppData\Local\Temp\7f3288ccbcf8a013ab271528d5592fd2.exe C:\Users\Admin\AppData\Local\Temp\7f3288ccbcf8a013ab271528d5592fd2.exe
PID 4352 wrote to memory of 3076 N/A C:\Users\Admin\AppData\Local\Temp\7f3288ccbcf8a013ab271528d5592fd2.exe C:\Users\Admin\AppData\Local\Temp\7f3288ccbcf8a013ab271528d5592fd2.exe
PID 4352 wrote to memory of 3076 N/A C:\Users\Admin\AppData\Local\Temp\7f3288ccbcf8a013ab271528d5592fd2.exe C:\Users\Admin\AppData\Local\Temp\7f3288ccbcf8a013ab271528d5592fd2.exe
PID 4352 wrote to memory of 3076 N/A C:\Users\Admin\AppData\Local\Temp\7f3288ccbcf8a013ab271528d5592fd2.exe C:\Users\Admin\AppData\Local\Temp\7f3288ccbcf8a013ab271528d5592fd2.exe
PID 4352 wrote to memory of 3076 N/A C:\Users\Admin\AppData\Local\Temp\7f3288ccbcf8a013ab271528d5592fd2.exe C:\Users\Admin\AppData\Local\Temp\7f3288ccbcf8a013ab271528d5592fd2.exe
PID 4352 wrote to memory of 3076 N/A C:\Users\Admin\AppData\Local\Temp\7f3288ccbcf8a013ab271528d5592fd2.exe C:\Users\Admin\AppData\Local\Temp\7f3288ccbcf8a013ab271528d5592fd2.exe
PID 4352 wrote to memory of 3076 N/A C:\Users\Admin\AppData\Local\Temp\7f3288ccbcf8a013ab271528d5592fd2.exe C:\Users\Admin\AppData\Local\Temp\7f3288ccbcf8a013ab271528d5592fd2.exe
PID 4352 wrote to memory of 3076 N/A C:\Users\Admin\AppData\Local\Temp\7f3288ccbcf8a013ab271528d5592fd2.exe C:\Users\Admin\AppData\Local\Temp\7f3288ccbcf8a013ab271528d5592fd2.exe
PID 3076 wrote to memory of 4136 N/A C:\Users\Admin\AppData\Local\Temp\7f3288ccbcf8a013ab271528d5592fd2.exe C:\Windows\SysWOW64\svchost.exe
PID 3076 wrote to memory of 4136 N/A C:\Users\Admin\AppData\Local\Temp\7f3288ccbcf8a013ab271528d5592fd2.exe C:\Windows\SysWOW64\svchost.exe
PID 3076 wrote to memory of 4136 N/A C:\Users\Admin\AppData\Local\Temp\7f3288ccbcf8a013ab271528d5592fd2.exe C:\Windows\SysWOW64\svchost.exe
PID 3076 wrote to memory of 4136 N/A C:\Users\Admin\AppData\Local\Temp\7f3288ccbcf8a013ab271528d5592fd2.exe C:\Windows\SysWOW64\svchost.exe
PID 3076 wrote to memory of 3892 N/A C:\Users\Admin\AppData\Local\Temp\7f3288ccbcf8a013ab271528d5592fd2.exe C:\Windows\SysWOW64\svchost.exe
PID 3076 wrote to memory of 3892 N/A C:\Users\Admin\AppData\Local\Temp\7f3288ccbcf8a013ab271528d5592fd2.exe C:\Windows\SysWOW64\svchost.exe
PID 3076 wrote to memory of 3892 N/A C:\Users\Admin\AppData\Local\Temp\7f3288ccbcf8a013ab271528d5592fd2.exe C:\Windows\SysWOW64\svchost.exe
PID 3076 wrote to memory of 3892 N/A C:\Users\Admin\AppData\Local\Temp\7f3288ccbcf8a013ab271528d5592fd2.exe C:\Windows\SysWOW64\svchost.exe

Processes

C:\Users\Admin\AppData\Local\Temp\7f3288ccbcf8a013ab271528d5592fd2.exe

"C:\Users\Admin\AppData\Local\Temp\7f3288ccbcf8a013ab271528d5592fd2.exe"

C:\Users\Admin\AppData\Local\Temp\7f3288ccbcf8a013ab271528d5592fd2.exe

C:\Windows\SysWOW64\svchost.exe

svchost.exe

C:\Windows\SysWOW64\svchost.exe

svchost.exe

C:\Users\Admin\AppData\Local\Temp\7f3288ccbcf8a013ab271528d5592fd2.exe

"C:\Users\Admin\AppData\Local\Temp\7f3288ccbcf8a013ab271528d5592fd2.exe"

Network

Country Destination Domain Proto
US 138.91.171.81:80 tcp
US 8.8.8.8:53 133.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 61.179.17.96.in-addr.arpa udp
US 8.8.8.8:53 g.bing.com udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 204.79.197.200:443 g.bing.com tcp
US 8.8.8.8:53 200.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 158.240.127.40.in-addr.arpa udp
US 8.8.8.8:53 www.webserver.com udp
US 8.8.8.8:53 205.47.74.20.in-addr.arpa udp
US 199.191.50.166:80 www.webserver.com tcp
US 8.8.8.8:53 exploreinquiry.com udp
US 208.91.196.46:443 exploreinquiry.com tcp
US 8.8.8.8:53 166.50.191.199.in-addr.arpa udp
US 8.8.8.8:53 46.196.91.208.in-addr.arpa udp
US 8.8.8.8:53 40.13.222.173.in-addr.arpa udp
US 8.8.8.8:53 241.154.82.20.in-addr.arpa udp
US 8.8.8.8:53 193.179.17.96.in-addr.arpa udp
US 8.8.8.8:53 www.afternic.com udp
GB 95.101.143.96:80 www.afternic.com tcp
GB 95.101.143.96:443 www.afternic.com tcp
US 8.8.8.8:53 96.143.101.95.in-addr.arpa udp
US 8.8.8.8:53 86.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 36.249.124.192.in-addr.arpa udp
US 8.8.8.8:53 2.136.104.51.in-addr.arpa udp
US 8.8.8.8:53 178.223.142.52.in-addr.arpa udp
US 8.8.8.8:53 41.110.16.96.in-addr.arpa udp
US 8.8.8.8:53 9.228.82.20.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 45.179.17.96.in-addr.arpa udp
US 8.8.8.8:53 183.1.37.23.in-addr.arpa udp
US 8.8.8.8:53 119.110.54.20.in-addr.arpa udp
US 8.8.8.8:53 43.229.111.52.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 8.8.8.8:53 42.134.221.88.in-addr.arpa udp
US 8.8.8.8:53 55.179.17.96.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 81.171.91.138.in-addr.arpa udp
US 8.8.8.8:53 214.80.50.20.in-addr.arpa udp
GB 96.17.179.55:80 tcp
GB 96.17.179.55:80 tcp

Files

memory/3768-0-0x0000000000400000-0x00000000004E7000-memory.dmp

memory/3768-1-0x00000000021C0000-0x0000000002220000-memory.dmp

memory/3768-2-0x0000000002180000-0x0000000002181000-memory.dmp

memory/3768-3-0x0000000002170000-0x0000000002171000-memory.dmp

memory/3768-4-0x0000000002230000-0x0000000002231000-memory.dmp

memory/3768-7-0x0000000002250000-0x0000000002251000-memory.dmp

memory/3768-5-0x0000000002160000-0x0000000002161000-memory.dmp

memory/3768-8-0x00000000021A0000-0x00000000021A1000-memory.dmp

memory/3768-9-0x0000000002240000-0x0000000002241000-memory.dmp

memory/3768-11-0x0000000002220000-0x0000000002221000-memory.dmp

memory/3768-10-0x0000000003A30000-0x0000000003A31000-memory.dmp

memory/3768-15-0x0000000002290000-0x0000000002291000-memory.dmp

memory/3768-17-0x00000000022C0000-0x00000000022C1000-memory.dmp

memory/3768-20-0x0000000002BA0000-0x0000000002BA1000-memory.dmp

memory/3768-22-0x0000000002B80000-0x0000000002B81000-memory.dmp

memory/3768-25-0x00000000022B0000-0x00000000022B1000-memory.dmp

memory/3768-27-0x00000000006D0000-0x00000000006D1000-memory.dmp

memory/3768-30-0x0000000003A40000-0x0000000003A41000-memory.dmp

memory/3768-29-0x0000000003A50000-0x0000000003A51000-memory.dmp

memory/3768-28-0x0000000003A60000-0x0000000003A61000-memory.dmp

memory/3768-26-0x0000000000540000-0x0000000000541000-memory.dmp

memory/3768-24-0x0000000002BE0000-0x0000000002BE1000-memory.dmp

memory/3768-23-0x0000000002BC0000-0x0000000002BC1000-memory.dmp

memory/3768-21-0x0000000002B90000-0x0000000002B91000-memory.dmp

memory/3768-19-0x0000000002300000-0x0000000002301000-memory.dmp

memory/3768-18-0x0000000002280000-0x0000000002281000-memory.dmp

memory/3768-16-0x00000000022F0000-0x00000000022F1000-memory.dmp

memory/3768-14-0x00000000022A0000-0x00000000022A1000-memory.dmp

memory/3768-12-0x0000000003A20000-0x0000000003A23000-memory.dmp

memory/3768-32-0x0000000003AE0000-0x0000000003AE1000-memory.dmp

memory/3768-34-0x0000000003AD0000-0x0000000003AD1000-memory.dmp

memory/3768-37-0x0000000003B10000-0x0000000003B11000-memory.dmp

memory/3768-41-0x0000000003B30000-0x0000000003B31000-memory.dmp

memory/3768-42-0x00000000021C0000-0x0000000002220000-memory.dmp

memory/3768-43-0x0000000003B60000-0x0000000003B61000-memory.dmp

memory/3768-39-0x0000000000400000-0x00000000004E7000-memory.dmp

memory/4352-45-0x0000000000400000-0x0000000000419000-memory.dmp

memory/3076-46-0x0000000000C80000-0x0000000000C96000-memory.dmp

memory/3076-52-0x0000000000C80000-0x0000000000C96000-memory.dmp

memory/3076-51-0x0000000000C80000-0x0000000000C96000-memory.dmp

memory/3076-49-0x0000000000C80000-0x0000000000C96000-memory.dmp

memory/4352-48-0x0000000000400000-0x0000000000419000-memory.dmp

memory/3768-40-0x0000000003B40000-0x0000000003B41000-memory.dmp

memory/4136-56-0x0000000000C80000-0x0000000000C96000-memory.dmp

C:\Windows\SysWOW64\InstallDir\Server.exe

MD5 d41d8cd98f00b204e9800998ecf8427e
SHA1 da39a3ee5e6b4b0d3255bfef95601890afd80709
SHA256 e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA512 cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

memory/3892-58-0x0000000000C80000-0x0000000000C96000-memory.dmp

memory/3768-36-0x0000000003B20000-0x0000000003B21000-memory.dmp

memory/4352-35-0x0000000000400000-0x0000000000419000-memory.dmp

memory/4352-31-0x0000000000400000-0x0000000000419000-memory.dmp

memory/3076-59-0x0000000000C80000-0x0000000000C96000-memory.dmp

memory/3892-61-0x0000000000C80000-0x0000000000C96000-memory.dmp

C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Gy7rQ.xtr

MD5 bf28f8fb31a4f40582f6101327d87699
SHA1 dba0a546428f6e8762e2b380ca610af2bcf2b652
SHA256 c3950ff601608fb705d1ec47860db16089e5869037be61563c5aad6540d27518
SHA512 c788e88f5f1cec1aa200de2f34e0fc1d1e7a4af8c3cce6406ded6b2bb1884b8ee5240cdfb621d3ebf453f13b07512df031f599d24c2eb02545fdf1dd6931220d

Analysis: behavioral1

Detonation Overview

Submitted

2023-12-26 17:09

Reported

2024-01-06 21:51

Platform

win7-20231129-en

Max time kernel

141s

Max time network

123s

Command Line

"C:\Users\Admin\AppData\Local\Temp\7f3288ccbcf8a013ab271528d5592fd2.exe"

Signatures

N/A

Processes

C:\Users\Admin\AppData\Local\Temp\7f3288ccbcf8a013ab271528d5592fd2.exe

"C:\Users\Admin\AppData\Local\Temp\7f3288ccbcf8a013ab271528d5592fd2.exe"

Network

N/A

Files

memory/2948-0-0x0000000000400000-0x00000000004E7000-memory.dmp

memory/2948-16-0x0000000002450000-0x0000000002451000-memory.dmp

memory/2948-19-0x0000000002490000-0x0000000002491000-memory.dmp

memory/2948-20-0x0000000002790000-0x0000000002791000-memory.dmp

memory/2948-21-0x0000000002480000-0x0000000002481000-memory.dmp

memory/2948-22-0x0000000002760000-0x0000000002761000-memory.dmp

memory/2948-23-0x0000000002780000-0x0000000002781000-memory.dmp

memory/2948-24-0x00000000005A0000-0x00000000005A1000-memory.dmp

memory/2948-25-0x0000000000280000-0x0000000000281000-memory.dmp

memory/2948-18-0x00000000024E0000-0x00000000024E1000-memory.dmp

memory/2948-15-0x0000000000570000-0x0000000000571000-memory.dmp

memory/2948-14-0x00000000005B0000-0x00000000005B1000-memory.dmp

memory/2948-13-0x0000000002440000-0x0000000002441000-memory.dmp

memory/2948-12-0x0000000000580000-0x0000000000581000-memory.dmp

memory/2948-11-0x0000000000590000-0x0000000000591000-memory.dmp

memory/2948-10-0x00000000035E0000-0x00000000035E3000-memory.dmp

memory/2948-9-0x00000000002C0000-0x00000000002C1000-memory.dmp

memory/2948-8-0x00000000035F0000-0x00000000035F1000-memory.dmp

memory/2948-7-0x00000000003E0000-0x00000000003E1000-memory.dmp

memory/2948-6-0x00000000002A0000-0x00000000002A1000-memory.dmp

memory/2948-5-0x00000000003F0000-0x00000000003F1000-memory.dmp

memory/2948-4-0x00000000001D0000-0x00000000001D1000-memory.dmp

memory/2948-3-0x00000000003D0000-0x00000000003D1000-memory.dmp

memory/2948-2-0x00000000001E0000-0x00000000001E1000-memory.dmp

memory/2948-1-0x00000000005C0000-0x0000000000620000-memory.dmp

memory/2948-26-0x0000000000400000-0x00000000004E7000-memory.dmp

memory/2948-27-0x00000000005C0000-0x0000000000620000-memory.dmp