Malware Analysis Report

2025-01-02 09:46

Sample ID 240901-p5tdza1djn
Target 7fb4cd6127f2690e8e27f9e696ed38856ca97386550852e647714f8ed9e65b37
SHA256 7fb4cd6127f2690e8e27f9e696ed38856ca97386550852e647714f8ed9e65b37
Tags
gcleaner discovery loader
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

7fb4cd6127f2690e8e27f9e696ed38856ca97386550852e647714f8ed9e65b37

Threat Level: Known bad

The file 7fb4cd6127f2690e8e27f9e696ed38856ca97386550852e647714f8ed9e65b37 was found to be: Known bad.

Malicious Activity Summary

gcleaner discovery loader

GCleaner

Deletes itself

Checks computer location settings

Enumerates physical storage devices

System Location Discovery: System Language Discovery

Program crash

Unsigned PE

Suspicious use of WriteProcessMemory

Kills process with taskkill

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-09-01 12:55

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-09-01 12:55

Reported

2024-09-01 12:57

Platform

win7-20240704-en

Max time kernel

118s

Max time network

119s

Command Line

"C:\Users\Admin\AppData\Local\Temp\7fb4cd6127f2690e8e27f9e696ed38856ca97386550852e647714f8ed9e65b37.exe"

Signatures

GCleaner

loader gcleaner

Deletes itself

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\cmd.exe N/A

Enumerates physical storage devices

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\7fb4cd6127f2690e8e27f9e696ed38856ca97386550852e647714f8ed9e65b37.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\cmd.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\taskkill.exe N/A

Kills process with taskkill

evasion
Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\taskkill.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Windows\SysWOW64\taskkill.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\7fb4cd6127f2690e8e27f9e696ed38856ca97386550852e647714f8ed9e65b37.exe

"C:\Users\Admin\AppData\Local\Temp\7fb4cd6127f2690e8e27f9e696ed38856ca97386550852e647714f8ed9e65b37.exe"

C:\Windows\SysWOW64\cmd.exe

"C:\Windows\System32\cmd.exe" /c taskkill /im "7fb4cd6127f2690e8e27f9e696ed38856ca97386550852e647714f8ed9e65b37.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\7fb4cd6127f2690e8e27f9e696ed38856ca97386550852e647714f8ed9e65b37.exe" & exit

C:\Windows\SysWOW64\taskkill.exe

taskkill /im "7fb4cd6127f2690e8e27f9e696ed38856ca97386550852e647714f8ed9e65b37.exe" /f

Network

Country Destination Domain Proto
RU 80.66.75.114:80 80.66.75.114 tcp

Files

memory/2224-1-0x00000000006E0000-0x00000000007E0000-memory.dmp

memory/2224-2-0x0000000000400000-0x000000000042F000-memory.dmp

memory/2224-3-0x0000000000400000-0x00000000005F7000-memory.dmp

memory/2224-8-0x00000000006E0000-0x00000000007E0000-memory.dmp

memory/2224-9-0x0000000000400000-0x000000000042F000-memory.dmp

C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\M7H6XY0V\download[1].htm

MD5 cfcd208495d565ef66e7dff9f98764da
SHA1 b6589fc6ab0dc82cf12099d1c2d40ab994e8410c
SHA256 5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9
SHA512 31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

memory/2224-11-0x0000000000400000-0x00000000005F7000-memory.dmp

memory/2224-23-0x00000000006E0000-0x00000000007E0000-memory.dmp

memory/2224-22-0x0000000000400000-0x000000000042F000-memory.dmp

memory/2224-21-0x0000000000400000-0x00000000005F7000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-09-01 12:55

Reported

2024-09-01 12:57

Platform

win10v2004-20240802-en

Max time kernel

134s

Max time network

102s

Command Line

"C:\Users\Admin\AppData\Local\Temp\7fb4cd6127f2690e8e27f9e696ed38856ca97386550852e647714f8ed9e65b37.exe"

Signatures

GCleaner

loader gcleaner

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-786284298-625481688-3210388970-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\7fb4cd6127f2690e8e27f9e696ed38856ca97386550852e647714f8ed9e65b37.exe N/A

Enumerates physical storage devices

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\7fb4cd6127f2690e8e27f9e696ed38856ca97386550852e647714f8ed9e65b37.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\cmd.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\taskkill.exe N/A

Kills process with taskkill

evasion
Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\taskkill.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Windows\SysWOW64\taskkill.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\7fb4cd6127f2690e8e27f9e696ed38856ca97386550852e647714f8ed9e65b37.exe

"C:\Users\Admin\AppData\Local\Temp\7fb4cd6127f2690e8e27f9e696ed38856ca97386550852e647714f8ed9e65b37.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4544 -ip 4544

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4544 -s 740

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 4544 -ip 4544

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4544 -s 752

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 4544 -ip 4544

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4544 -s 796

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 464 -p 4544 -ip 4544

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4544 -s 816

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 508 -p 4544 -ip 4544

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4544 -s 904

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 464 -p 4544 -ip 4544

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4544 -s 1008

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 544 -p 4544 -ip 4544

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4544 -s 1340

C:\Windows\SysWOW64\cmd.exe

"C:\Windows\System32\cmd.exe" /c taskkill /im "7fb4cd6127f2690e8e27f9e696ed38856ca97386550852e647714f8ed9e65b37.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\7fb4cd6127f2690e8e27f9e696ed38856ca97386550852e647714f8ed9e65b37.exe" & exit

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 568 -p 4544 -ip 4544

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4544 -s 1464

C:\Windows\SysWOW64\taskkill.exe

taskkill /im "7fb4cd6127f2690e8e27f9e696ed38856ca97386550852e647714f8ed9e65b37.exe" /f

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 13.86.106.20.in-addr.arpa udp
US 8.8.8.8:53 81.144.22.2.in-addr.arpa udp
US 8.8.8.8:53 2.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 241.150.49.20.in-addr.arpa udp
RU 80.66.75.114:80 80.66.75.114 tcp
US 8.8.8.8:53 114.75.66.80.in-addr.arpa udp
US 8.8.8.8:53 28.118.140.52.in-addr.arpa udp
US 8.8.8.8:53 103.169.127.40.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 205.47.74.20.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp

Files

memory/4544-1-0x0000000000950000-0x0000000000A50000-memory.dmp

memory/4544-2-0x00000000008A0000-0x00000000008CD000-memory.dmp

memory/4544-3-0x0000000000400000-0x000000000042F000-memory.dmp

memory/4544-8-0x0000000000950000-0x0000000000A50000-memory.dmp

C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\THHXO5RX\download[1].htm

MD5 cfcd208495d565ef66e7dff9f98764da
SHA1 b6589fc6ab0dc82cf12099d1c2d40ab994e8410c
SHA256 5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9
SHA512 31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

memory/4544-11-0x00000000008A0000-0x00000000008CD000-memory.dmp

memory/4544-10-0x0000000000400000-0x00000000005F7000-memory.dmp

memory/4544-12-0x0000000000400000-0x000000000042F000-memory.dmp

memory/4544-21-0x0000000000400000-0x00000000005F7000-memory.dmp

memory/4544-22-0x0000000000400000-0x000000000042F000-memory.dmp