Malware Analysis Report

2024-12-06 03:25

Sample ID 241022-pawkvawejn
Target Fignen234.exe
SHA256 feaabdf9165e508294f7006308b85802672ee6d7fac58ce4b3c92f6cb63334cc
Tags
discovery guloader 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

discovery guloader 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

Program crash

Enumerates physical storage devices

Unsigned PE

System Location Discovery: System Language Discovery

NSIS installer

Suspicious behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

Suspicious behavior: MapViewOfSection

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-10-22 12:08

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 12:08

Reported

2024-10-22 12:10

Platform

win7-20240708-en

Max time kernel

69s

Max time network

70s

Command Line

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

Signatures

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 2300 set thread context of 2448 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 142.250.178.14:443 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 crl.microsoft.com udp
GB 2.19.117.22:80 crl.microsoft.com tcp
US 8.8.8.8:53 www.microsoft.com udp
GB 2.17.5.133:80 www.microsoft.com tcp

Files

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

MD5 47674f72384fda8e1c1bb43c145131ef
SHA1 78203849143cb267becafb5e4f1306297536a87e
SHA256 9bf1aafb541d22dff36de2b2ff73241f395c77b59e77c3cffc141e17293a3540
SHA512 0e0935f8e695e48a16f79b34d9af2fdea3a5e6958e16f034c55f61a71982735c54c770dafefac0b666a26665eec25fbcf38e468d6cc243995a37d1b1a90d894d

\Users\Admin\AppData\Local\Temp\nsuAC57.tmp\System.dll

MD5 cf85183b87314359488b850f9e97a698
SHA1 6b6c790037eec7ebea4d05590359cb4473f19aea
SHA256 3b6a5cb2a3c091814fce297c04fb677f72732fb21615102c62a195fdc2e7dfac
SHA512 fe484b3fc89aeed3a6b71b90b90ea11a787697e56be3077154b6ddc2646850f6c38589ed422ff792e391638a80a778d33f22e891e76b5d65896c6fb4696a2c3b

memory/2300-429-0x00000000037A0000-0x00000000064A7000-memory.dmp

memory/2300-431-0x0000000077721000-0x0000000077822000-memory.dmp

memory/2300-430-0x0000000077910000-0x00000000779E6000-memory.dmp

memory/2300-432-0x00000000037A0000-0x00000000064A7000-memory.dmp

memory/2448-433-0x0000000000400000-0x0000000001462000-memory.dmp

memory/2448-434-0x0000000001470000-0x0000000004177000-memory.dmp

memory/2448-456-0x0000000000400000-0x0000000001462000-memory.dmp

memory/2448-457-0x0000000000400000-0x0000000001462000-memory.dmp

memory/2448-459-0x0000000001470000-0x0000000004177000-memory.dmp

memory/2448-458-0x0000000000400000-0x0000000001462000-memory.dmp

memory/2448-461-0x0000000000400000-0x0000000001462000-memory.dmp

memory/2448-460-0x0000000000400000-0x0000000001462000-memory.dmp

memory/2448-462-0x0000000000400000-0x0000000001462000-memory.dmp

memory/2448-468-0x0000000000400000-0x0000000001462000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-10-22 12:08

Reported

2024-10-22 12:10

Platform

win10v2004-20241007-en

Max time kernel

133s

Max time network

148s

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 4900 set thread context of 2404 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 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 g.bing.com udp
US 150.171.30.10:443 g.bing.com tcp
US 8.8.8.8:53 228.249.119.40.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 10.30.171.150.in-addr.arpa udp
US 8.8.8.8:53 88.156.103.20.in-addr.arpa udp
US 8.8.8.8:53 74.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 217.106.137.52.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 142.250.187.227:80 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 8.8.8.8:53 227.187.250.142.in-addr.arpa udp
US 8.8.8.8:53 97.201.58.216.in-addr.arpa udp
US 8.8.8.8:53 197.87.175.4.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 99.208.201.84.in-addr.arpa udp
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp
US 8.8.8.8:53 83.210.23.2.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 150.171.28.10:443 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

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

MD5 be396b926084f578845e5a623813560d
SHA1 98708dd27ef478c368aae42c7be1c95e74c5c202
SHA256 1747ab242df6450a799394828b45f91d27f4d48f3a02e161a2413895885ed115
SHA512 9cc7b1920fc6d21338e8f3d5f29908aa0e305f7397943873b8450150c302a86d6ee38832247cda6f732a3fa0f72455ad8ea233d4f3d8416d1c730fe72a71a1fb

C:\Users\Admin\AppData\Local\Temp\nswE1F5.tmp\System.dll

MD5 cf85183b87314359488b850f9e97a698
SHA1 6b6c790037eec7ebea4d05590359cb4473f19aea
SHA256 3b6a5cb2a3c091814fce297c04fb677f72732fb21615102c62a195fdc2e7dfac
SHA512 fe484b3fc89aeed3a6b71b90b90ea11a787697e56be3077154b6ddc2646850f6c38589ed422ff792e391638a80a778d33f22e891e76b5d65896c6fb4696a2c3b

memory/4900-429-0x0000000003990000-0x0000000006697000-memory.dmp

memory/4900-430-0x0000000003990000-0x0000000006697000-memory.dmp

memory/4900-431-0x0000000077741000-0x0000000077861000-memory.dmp

memory/4900-432-0x0000000010004000-0x0000000010005000-memory.dmp

memory/2404-433-0x0000000000400000-0x0000000001654000-memory.dmp

memory/4900-434-0x0000000003990000-0x0000000006697000-memory.dmp

memory/2404-435-0x0000000001660000-0x0000000004367000-memory.dmp

memory/2404-448-0x0000000000400000-0x0000000001654000-memory.dmp

memory/2404-449-0x0000000000400000-0x0000000001654000-memory.dmp

memory/2404-450-0x0000000001660000-0x0000000004367000-memory.dmp

memory/2404-451-0x0000000000400000-0x0000000001654000-memory.dmp

memory/2404-452-0x0000000000400000-0x0000000001654000-memory.dmp

memory/2404-453-0x0000000000400000-0x0000000001654000-memory.dmp

memory/2404-456-0x0000000000400000-0x0000000001654000-memory.dmp

Analysis: behavioral3

Detonation Overview

Submitted

2024-10-22 12:08

Reported

2024-10-22 12:10

Platform

win7-20240903-en

Max time kernel

121s

Max time network

122s

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 2120 -s 224

Network

N/A

Files

N/A

Analysis: behavioral4

Detonation Overview

Submitted

2024-10-22 12:08

Reported

2024-10-22 12:10

Platform

win10v2004-20241007-en

Max time kernel

132s

Max time network

143s

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 460 wrote to memory of 1992 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 460 wrote to memory of 1992 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 460 wrote to memory of 1992 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 448 -p 1992 -ip 1992

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 1992 -s 612

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 g.bing.com udp
US 150.171.30.10:443 g.bing.com tcp
US 8.8.8.8:53 228.249.119.40.in-addr.arpa udp
US 8.8.8.8:53 10.30.171.150.in-addr.arpa udp
US 8.8.8.8:53 83.210.23.2.in-addr.arpa udp
US 8.8.8.8:53 4.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 205.47.74.20.in-addr.arpa udp
US 8.8.8.8:53 28.118.140.52.in-addr.arpa udp
US 8.8.8.8:53 200.163.202.172.in-addr.arpa udp
US 8.8.8.8:53 241.42.69.40.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 88.210.23.2.in-addr.arpa udp
US 8.8.8.8:53 29.243.111.52.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 8.8.8.8:53 10.27.171.150.in-addr.arpa udp

Files

N/A