Malware Analysis Report

2024-12-06 03:25

Sample ID 241022-pazmhawekj
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: behavioral3

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral4

Detonation Overview

Command Line

Signatures

Processes

Network

Files

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

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 NtSetInformationThreadHideFromDebugger

Suspicious use of NtCreateThreadExHideFromDebugger

Suspicious use of SetThreadContext

Drops file in Windows directory

Unsigned PE

System Location Discovery: System Language Discovery

Program crash

Enumerates physical storage devices

NSIS installer

Suspicious use of WriteProcessMemory

Suspicious behavior: EnumeratesProcesses

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: behavioral3

Detonation Overview

Submitted

2024-10-22 12:08

Reported

2024-10-22 12:10

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 2260 -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

133s

Max time network

102s

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 1124 wrote to memory of 1824 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 1124 wrote to memory of 1824 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 1124 wrote to memory of 1824 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 456 -p 1824 -ip 1824

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 1824 -s 612

Network

Country Destination Domain Proto
US 8.8.8.8:53 104.219.191.52.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 2.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 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 13.86.106.20.in-addr.arpa udp
US 8.8.8.8:53 197.87.175.4.in-addr.arpa udp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 88.210.23.2.in-addr.arpa udp
US 8.8.8.8:53 83.210.23.2.in-addr.arpa udp
US 8.8.8.8:53 30.243.111.52.in-addr.arpa udp
US 8.8.8.8:53 88.156.103.20.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
US 8.8.8.8:53 10.28.171.150.in-addr.arpa udp

Files

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-10-22 12:08

Reported

2024-10-22 12:10

Platform

win7-20240729-en

Max time kernel

71s

Max time network

71s

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 2604 set thread context of 1896 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 www.microsoft.com udp
GB 2.17.5.133:80 www.microsoft.com tcp
US 8.8.8.8:53 crl.microsoft.com udp
GB 2.19.117.22:80 crl.microsoft.com tcp

Files

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

MD5 6d3dfffc93832b074e3a06c2657f256c
SHA1 f640770f547e54efed7e4df56ec27d848a131c66
SHA256 53cf4eff5ae0e2c211fb1f0680a344d2ed66e538ad44cb88a8cfe7d95a55d8a8
SHA512 9bc16c4aa49a4abb74281930e3188b264f5fbfb93b5fef215c253a266af14e7a34367aa0ecfd7a4106915553e1cf1012d91e1fc1eec0a37dc01341452f5197eb

\Users\Admin\AppData\Local\Temp\nsu253.tmp\System.dll

MD5 cf85183b87314359488b850f9e97a698
SHA1 6b6c790037eec7ebea4d05590359cb4473f19aea
SHA256 3b6a5cb2a3c091814fce297c04fb677f72732fb21615102c62a195fdc2e7dfac
SHA512 fe484b3fc89aeed3a6b71b90b90ea11a787697e56be3077154b6ddc2646850f6c38589ed422ff792e391638a80a778d33f22e891e76b5d65896c6fb4696a2c3b

memory/2604-429-0x0000000003A00000-0x0000000006707000-memory.dmp

memory/2604-430-0x0000000003A00000-0x0000000006707000-memory.dmp

memory/2604-432-0x0000000076EE1000-0x0000000076FE2000-memory.dmp

memory/2604-431-0x00000000770D0000-0x00000000771A6000-memory.dmp

memory/1896-433-0x0000000000400000-0x0000000001462000-memory.dmp

memory/1896-434-0x0000000001470000-0x0000000004177000-memory.dmp

memory/1896-456-0x0000000000400000-0x0000000001462000-memory.dmp

memory/1896-457-0x0000000000400000-0x0000000001462000-memory.dmp

memory/1896-458-0x0000000000400000-0x0000000001462000-memory.dmp

memory/1896-459-0x0000000001470000-0x0000000004177000-memory.dmp

memory/1896-460-0x0000000000400000-0x0000000001462000-memory.dmp

memory/1896-461-0x0000000000400000-0x0000000001462000-memory.dmp

memory/1896-462-0x0000000000400000-0x0000000001462000-memory.dmp

memory/1896-469-0x0000000000400000-0x0000000001462000-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

149s

Max time network

150s

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 3920 set thread context of 2300 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 8.8.8.8:53 232.168.11.51.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp
US 8.8.8.8:53 28.118.140.52.in-addr.arpa udp
US 8.8.8.8:53 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 8.8.8.8:53 238.16.217.172.in-addr.arpa udp
US 8.8.8.8:53 3.178.250.142.in-addr.arpa udp
US 8.8.8.8:53 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 97.201.58.216.in-addr.arpa udp
US 8.8.8.8:53 200.163.202.172.in-addr.arpa udp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
US 8.8.8.8:53 75.117.19.2.in-addr.arpa udp
US 8.8.8.8:53 73.208.201.84.in-addr.arpa udp
US 8.8.8.8:53 88.156.103.20.in-addr.arpa udp
US 8.8.8.8:53 83.210.23.2.in-addr.arpa udp
US 8.8.8.8:53 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 150.171.27.10:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 10.27.171.150.in-addr.arpa udp
US 8.8.8.8:53 88.65.42.20.in-addr.arpa udp

Files

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

MD5 f1ef074df35d1cc56ee90c6c361be29c
SHA1 61646d4da4770ab0a6bc5133d66eb81e3407d7ad
SHA256 2daafe15fcbc8001dea5b6438b0c764ca2fb3040bcc3e64a0228af28e98a44d8
SHA512 e599ca5230e725d20869c7d13d5846743926ba3b56fbac774e4d9e3f99e787b4848239f852bcd73a017c840fac9867e0affc7ffcc87cc59ae69d3da51bd213a9

C:\Users\Admin\AppData\Local\Temp\nsy8FCD.tmp\System.dll

MD5 cf85183b87314359488b850f9e97a698
SHA1 6b6c790037eec7ebea4d05590359cb4473f19aea
SHA256 3b6a5cb2a3c091814fce297c04fb677f72732fb21615102c62a195fdc2e7dfac
SHA512 fe484b3fc89aeed3a6b71b90b90ea11a787697e56be3077154b6ddc2646850f6c38589ed422ff792e391638a80a778d33f22e891e76b5d65896c6fb4696a2c3b

memory/3920-429-0x00000000037B0000-0x00000000064B7000-memory.dmp

memory/3920-430-0x0000000077B21000-0x0000000077C41000-memory.dmp

memory/3920-431-0x00000000037B0000-0x00000000064B7000-memory.dmp

memory/2300-432-0x0000000000400000-0x0000000001654000-memory.dmp

memory/2300-433-0x0000000001660000-0x0000000004367000-memory.dmp

memory/2300-446-0x0000000000400000-0x0000000001654000-memory.dmp

memory/2300-447-0x0000000000400000-0x0000000001654000-memory.dmp

memory/2300-448-0x0000000001660000-0x0000000004367000-memory.dmp

memory/2300-449-0x0000000000400000-0x0000000001654000-memory.dmp

memory/2300-450-0x0000000000400000-0x0000000001654000-memory.dmp

memory/2300-453-0x0000000000400000-0x0000000001654000-memory.dmp