Malware Analysis Report

2024-12-06 03:26

Sample ID 241022-pe7tnsvaja
Target Fignen234.exe
SHA256 feaabdf9165e508294f7006308b85802672ee6d7fac58ce4b3c92f6cb63334cc
Tags
guloader discovery downloader
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: behavioral3

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral4

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

feaabdf9165e508294f7006308b85802672ee6d7fac58ce4b3c92f6cb63334cc

Threat Level: Known bad

The file Fignen234.exe was found to be: Known bad.

Malicious Activity Summary

guloader discovery downloader

Guloader,Cloudeye

Loads dropped DLL

Legitimate hosting services abused for malware hosting/C2

Suspicious use of SetThreadContext

Suspicious use of NtCreateThreadExHideFromDebugger

Suspicious use of NtSetInformationThreadHideFromDebugger

Drops file in Windows directory

Unsigned PE

Enumerates physical storage devices

Program crash

System Location Discovery: System Language Discovery

NSIS installer

Suspicious use of WriteProcessMemory

Suspicious behavior: MapViewOfSection

Suspicious behavior: EnumeratesProcesses

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-10-22 12:15

Signatures

Unsigned PE

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

NSIS installer

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-10-22 12:15

Reported

2024-10-22 12:18

Platform

win7-20241010-en

Max time kernel

118s

Max time network

119s

Command Line

"C:\Users\Admin\AppData\Local\Temp\Fignen234.exe"

Signatures

Guloader,Cloudeye

downloader guloader

Loads dropped DLL

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\Fignen234.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Fignen234.exe N/A

Legitimate hosting services abused for malware hosting/C2

Description Indicator Process Target
N/A drive.google.com N/A N/A
N/A drive.google.com N/A N/A

Suspicious use of NtCreateThreadExHideFromDebugger

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\Fignen234.exe N/A

Suspicious use of NtSetInformationThreadHideFromDebugger

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\Fignen234.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Fignen234.exe N/A

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 3052 set thread context of 980 N/A C:\Users\Admin\AppData\Local\Temp\Fignen234.exe C:\Users\Admin\AppData\Local\Temp\Fignen234.exe

Drops file in Windows directory

Description Indicator Process Target
File opened for modification C:\Windows\resources\Trnregimenternes\totalsanerende.Obs202 C:\Users\Admin\AppData\Local\Temp\Fignen234.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\Fignen234.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\Fignen234.exe N/A

Suspicious behavior: MapViewOfSection

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\Fignen234.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\Fignen234.exe

"C:\Users\Admin\AppData\Local\Temp\Fignen234.exe"

C:\Users\Admin\AppData\Local\Temp\Fignen234.exe

"C:\Users\Admin\AppData\Local\Temp\Fignen234.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 drive.google.com udp
GB 172.217.16.238:443 drive.google.com tcp
US 8.8.8.8:53 c.pki.goog udp
GB 142.250.178.3:80 c.pki.goog tcp
US 8.8.8.8:53 o.pki.goog udp
GB 142.250.178.3:80 o.pki.goog tcp
US 8.8.8.8:53 drive.usercontent.google.com udp
GB 216.58.201.97:443 drive.usercontent.google.com tcp

Files

C:\Users\Admin\Music\incinerations.lnk

MD5 13d7569fe419c9c755f95e9770b81650
SHA1 dc80601f3e21ebf4622e5a566faec3a9764b966f
SHA256 16c91a3d32b8ed39b852b172de8ee4f997ff2ab57eaa556947cacd648346e3f1
SHA512 c49471b4796367a32908c3dd837e975088f1d09a34922007610b97692d6410890f8974738bca375d926441edd771c068c9ecafe5101f75f7d67dd00884c55ee5

\Users\Admin\AppData\Local\Temp\nsyA767.tmp\System.dll

MD5 cf85183b87314359488b850f9e97a698
SHA1 6b6c790037eec7ebea4d05590359cb4473f19aea
SHA256 3b6a5cb2a3c091814fce297c04fb677f72732fb21615102c62a195fdc2e7dfac
SHA512 fe484b3fc89aeed3a6b71b90b90ea11a787697e56be3077154b6ddc2646850f6c38589ed422ff792e391638a80a778d33f22e891e76b5d65896c6fb4696a2c3b

memory/3052-429-0x0000000003820000-0x0000000006527000-memory.dmp

memory/3052-433-0x0000000077B81000-0x0000000077C82000-memory.dmp

memory/3052-432-0x0000000010004000-0x0000000010005000-memory.dmp

memory/3052-431-0x0000000077D70000-0x0000000077E46000-memory.dmp

memory/3052-430-0x0000000003820000-0x0000000006527000-memory.dmp

memory/3052-434-0x0000000003820000-0x0000000006527000-memory.dmp

memory/980-436-0x0000000001470000-0x0000000004177000-memory.dmp

memory/980-435-0x0000000000400000-0x0000000001462000-memory.dmp

memory/980-456-0x0000000000400000-0x0000000001462000-memory.dmp

memory/980-458-0x0000000000400000-0x0000000001462000-memory.dmp

memory/980-459-0x0000000001470000-0x0000000004177000-memory.dmp

memory/980-461-0x0000000000400000-0x0000000001462000-memory.dmp

memory/980-460-0x0000000000400000-0x0000000001462000-memory.dmp

memory/980-463-0x0000000000400000-0x0000000001462000-memory.dmp

memory/980-462-0x0000000000400000-0x0000000001462000-memory.dmp

memory/980-464-0x0000000000400000-0x0000000001462000-memory.dmp

memory/980-470-0x0000000000400000-0x0000000001462000-memory.dmp

memory/980-472-0x0000000001470000-0x0000000004177000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-10-22 12:15

Reported

2024-10-22 12:18

Platform

win10v2004-20241007-en

Max time kernel

138s

Max time network

147s

Command Line

"C:\Users\Admin\AppData\Local\Temp\Fignen234.exe"

Signatures

Guloader,Cloudeye

downloader guloader

Loads dropped DLL

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\Fignen234.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Fignen234.exe N/A

Legitimate hosting services abused for malware hosting/C2

Description Indicator Process Target
N/A drive.google.com N/A N/A
N/A drive.google.com N/A N/A

Suspicious use of NtCreateThreadExHideFromDebugger

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\Fignen234.exe N/A

Suspicious use of NtSetInformationThreadHideFromDebugger

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\Fignen234.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Fignen234.exe N/A

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 3128 set thread context of 1872 N/A C:\Users\Admin\AppData\Local\Temp\Fignen234.exe C:\Users\Admin\AppData\Local\Temp\Fignen234.exe

Drops file in Windows directory

Description Indicator Process Target
File opened for modification C:\Windows\resources\Trnregimenternes\totalsanerende.Obs202 C:\Users\Admin\AppData\Local\Temp\Fignen234.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\Fignen234.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\Fignen234.exe N/A

Suspicious behavior: MapViewOfSection

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\Fignen234.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\Fignen234.exe

"C:\Users\Admin\AppData\Local\Temp\Fignen234.exe"

C:\Users\Admin\AppData\Local\Temp\Fignen234.exe

"C:\Users\Admin\AppData\Local\Temp\Fignen234.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 97.17.167.52.in-addr.arpa udp
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 83.210.23.2.in-addr.arpa udp
US 8.8.8.8:53 76.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp
US 8.8.8.8:53 232.168.11.51.in-addr.arpa udp
US 8.8.8.8:53 drive.google.com udp
GB 172.217.16.238:443 drive.google.com tcp
US 8.8.8.8:53 c.pki.goog udp
GB 142.250.178.3:80 c.pki.goog tcp
US 8.8.8.8:53 o.pki.goog udp
GB 142.250.178.3:80 o.pki.goog tcp
US 8.8.8.8:53 drive.usercontent.google.com udp
GB 216.58.201.97:443 drive.usercontent.google.com tcp
US 8.8.8.8:53 238.16.217.172.in-addr.arpa udp
US 8.8.8.8:53 3.178.250.142.in-addr.arpa udp
US 8.8.8.8:53 97.201.58.216.in-addr.arpa udp
US 8.8.8.8:53 56.163.245.4.in-addr.arpa udp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 88.156.103.20.in-addr.arpa udp
US 8.8.8.8:53 21.236.111.52.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
US 8.8.8.8:53 10.28.171.150.in-addr.arpa udp

Files

C:\Users\Admin\Music\incinerations.lnk

MD5 bf6c6c1bb46e7e0a0e0729fcf89ebeb8
SHA1 391261875577bfdf6d603fb9cd010b01a28b2208
SHA256 67303c927f66a65f13186eb09b958d1cc29649d3d2701792ca53bd245a237058
SHA512 edd1e414939adcec8b304be7163e1a85ec2a969c8e19f5c71cfd6273896d15423696db55b996d4db986daa314e8ff8af6bee951266621482966b639ebdbaecb9

C:\Users\Admin\AppData\Local\Temp\nso8415.tmp\System.dll

MD5 cf85183b87314359488b850f9e97a698
SHA1 6b6c790037eec7ebea4d05590359cb4473f19aea
SHA256 3b6a5cb2a3c091814fce297c04fb677f72732fb21615102c62a195fdc2e7dfac
SHA512 fe484b3fc89aeed3a6b71b90b90ea11a787697e56be3077154b6ddc2646850f6c38589ed422ff792e391638a80a778d33f22e891e76b5d65896c6fb4696a2c3b

memory/3128-429-0x00000000037D0000-0x00000000064D7000-memory.dmp

memory/3128-430-0x00000000037D0000-0x00000000064D7000-memory.dmp

memory/3128-431-0x0000000077761000-0x0000000077881000-memory.dmp

memory/3128-432-0x00000000037D0000-0x00000000064D7000-memory.dmp

memory/1872-433-0x0000000000400000-0x0000000001654000-memory.dmp

memory/1872-434-0x0000000001660000-0x0000000004367000-memory.dmp

memory/1872-447-0x0000000000400000-0x0000000001654000-memory.dmp

memory/1872-448-0x0000000000400000-0x0000000001654000-memory.dmp

memory/1872-449-0x0000000001660000-0x0000000004367000-memory.dmp

memory/1872-450-0x0000000000400000-0x0000000001654000-memory.dmp

memory/1872-451-0x0000000000400000-0x0000000001654000-memory.dmp

memory/1872-454-0x0000000000400000-0x0000000001654000-memory.dmp

memory/1872-455-0x0000000001660000-0x0000000004367000-memory.dmp

Analysis: behavioral3

Detonation Overview

Submitted

2024-10-22 12:15

Reported

2024-10-22 12:18

Platform

win7-20240903-en

Max time kernel

117s

Max time network

118s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\System.dll,#1

Signatures

Program crash

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\WerFault.exe C:\Windows\SysWOW64\rundll32.exe

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\rundll32.exe N/A

Processes

C:\Windows\system32\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\System.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\System.dll,#1

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 1936 -s 224

Network

N/A

Files

N/A

Analysis: behavioral4

Detonation Overview

Submitted

2024-10-22 12:15

Reported

2024-10-22 12:18

Platform

win10v2004-20241007-en

Max time kernel

134s

Max time network

103s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\System.dll,#1

Signatures

Program crash

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\WerFault.exe C:\Windows\SysWOW64\rundll32.exe

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\rundll32.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2268 wrote to memory of 4976 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2268 wrote to memory of 4976 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2268 wrote to memory of 4976 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe

Processes

C:\Windows\system32\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\System.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\System.dll,#1

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4976 -ip 4976

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4976 -s 612

Network

Country Destination Domain Proto
US 8.8.8.8:53 154.239.44.20.in-addr.arpa udp
US 8.8.8.8:53 88.210.23.2.in-addr.arpa udp
US 8.8.8.8:53 g.bing.com udp
US 150.171.29.10:443 g.bing.com tcp
US 8.8.8.8:53 72.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 10.29.171.150.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 88.156.103.20.in-addr.arpa udp
US 8.8.8.8:53 13.86.106.20.in-addr.arpa udp
US 8.8.8.8:53 53.210.109.20.in-addr.arpa udp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 11.227.111.52.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 55.36.223.20.in-addr.arpa udp

Files

N/A