Malware Analysis Report

2024-11-15 10:22

Sample ID 241106-ssza8ssfna
Target f64a7307f5e75e2e73e93c5e2ed8009e8698e2c388a707afabbb756ecd0e1261
SHA256 f64a7307f5e75e2e73e93c5e2ed8009e8698e2c388a707afabbb756ecd0e1261
Tags
azorult guloader discovery downloader infostealer trojan
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

f64a7307f5e75e2e73e93c5e2ed8009e8698e2c388a707afabbb756ecd0e1261

Threat Level: Known bad

The file f64a7307f5e75e2e73e93c5e2ed8009e8698e2c388a707afabbb756ecd0e1261 was found to be: Known bad.

Malicious Activity Summary

azorult guloader discovery downloader infostealer trojan

Guloader family

Azorult family

Azorult

Guloader,Cloudeye

Loads dropped DLL

Suspicious use of NtCreateThreadExHideFromDebugger

Suspicious use of NtSetInformationThreadHideFromDebugger

Suspicious use of SetThreadContext

Drops file in Windows directory

Drops file in Program Files directory

Enumerates physical storage devices

System Location Discovery: System Language Discovery

Unsigned PE

Program crash

Suspicious behavior: MapViewOfSection

Suspicious use of WriteProcessMemory

Modifies system certificate store

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-11-06 15:23

Signatures

Unsigned PE

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

2024-11-06 15:23

Reported

2024-11-06 15:26

Platform

win7-20240903-en

Max time kernel

122s

Max time network

123s

Command Line

"C:\Users\Admin\AppData\Local\Temp\f64a7307f5e75e2e73e93c5e2ed8009e8698e2c388a707afabbb756ecd0e1261.exe"

Signatures

Azorult

trojan infostealer azorult

Azorult family

azorult

Guloader family

guloader

Guloader,Cloudeye

downloader guloader

Suspicious use of NtCreateThreadExHideFromDebugger

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\f64a7307f5e75e2e73e93c5e2ed8009e8698e2c388a707afabbb756ecd0e1261.exe N/A

Drops file in Program Files directory

Description Indicator Process Target
File opened for modification C:\Program Files (x86)\slutstrenge.tri C:\Users\Admin\AppData\Local\Temp\f64a7307f5e75e2e73e93c5e2ed8009e8698e2c388a707afabbb756ecd0e1261.exe N/A

Drops file in Windows directory

Description Indicator Process Target
File opened for modification C:\Windows\resources\0409\Semiprofessionalized248\evaluxir.pra C:\Users\Admin\AppData\Local\Temp\f64a7307f5e75e2e73e93c5e2ed8009e8698e2c388a707afabbb756ecd0e1261.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\f64a7307f5e75e2e73e93c5e2ed8009e8698e2c388a707afabbb756ecd0e1261.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\f64a7307f5e75e2e73e93c5e2ed8009e8698e2c388a707afabbb756ecd0e1261.exe N/A

Modifies system certificate store

evasion spyware trojan
Description Indicator Process Target
Set value (data) \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\ROOT\Certificates\CABD2A79A1076A31F21D253635CB039D4329A5E8\Blob = 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 C:\Users\Admin\AppData\Local\Temp\f64a7307f5e75e2e73e93c5e2ed8009e8698e2c388a707afabbb756ecd0e1261.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\ROOT\Certificates\CABD2A79A1076A31F21D253635CB039D4329A5E8 C:\Users\Admin\AppData\Local\Temp\f64a7307f5e75e2e73e93c5e2ed8009e8698e2c388a707afabbb756ecd0e1261.exe N/A

Suspicious behavior: MapViewOfSection

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\f64a7307f5e75e2e73e93c5e2ed8009e8698e2c388a707afabbb756ecd0e1261.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 3004 wrote to memory of 2900 N/A C:\Users\Admin\AppData\Local\Temp\f64a7307f5e75e2e73e93c5e2ed8009e8698e2c388a707afabbb756ecd0e1261.exe C:\Users\Admin\AppData\Local\Temp\f64a7307f5e75e2e73e93c5e2ed8009e8698e2c388a707afabbb756ecd0e1261.exe
PID 3004 wrote to memory of 2900 N/A C:\Users\Admin\AppData\Local\Temp\f64a7307f5e75e2e73e93c5e2ed8009e8698e2c388a707afabbb756ecd0e1261.exe C:\Users\Admin\AppData\Local\Temp\f64a7307f5e75e2e73e93c5e2ed8009e8698e2c388a707afabbb756ecd0e1261.exe
PID 3004 wrote to memory of 2900 N/A C:\Users\Admin\AppData\Local\Temp\f64a7307f5e75e2e73e93c5e2ed8009e8698e2c388a707afabbb756ecd0e1261.exe C:\Users\Admin\AppData\Local\Temp\f64a7307f5e75e2e73e93c5e2ed8009e8698e2c388a707afabbb756ecd0e1261.exe
PID 3004 wrote to memory of 2900 N/A C:\Users\Admin\AppData\Local\Temp\f64a7307f5e75e2e73e93c5e2ed8009e8698e2c388a707afabbb756ecd0e1261.exe C:\Users\Admin\AppData\Local\Temp\f64a7307f5e75e2e73e93c5e2ed8009e8698e2c388a707afabbb756ecd0e1261.exe
PID 3004 wrote to memory of 2900 N/A C:\Users\Admin\AppData\Local\Temp\f64a7307f5e75e2e73e93c5e2ed8009e8698e2c388a707afabbb756ecd0e1261.exe C:\Users\Admin\AppData\Local\Temp\f64a7307f5e75e2e73e93c5e2ed8009e8698e2c388a707afabbb756ecd0e1261.exe
PID 3004 wrote to memory of 2900 N/A C:\Users\Admin\AppData\Local\Temp\f64a7307f5e75e2e73e93c5e2ed8009e8698e2c388a707afabbb756ecd0e1261.exe C:\Users\Admin\AppData\Local\Temp\f64a7307f5e75e2e73e93c5e2ed8009e8698e2c388a707afabbb756ecd0e1261.exe

Processes

C:\Users\Admin\AppData\Local\Temp\f64a7307f5e75e2e73e93c5e2ed8009e8698e2c388a707afabbb756ecd0e1261.exe

"C:\Users\Admin\AppData\Local\Temp\f64a7307f5e75e2e73e93c5e2ed8009e8698e2c388a707afabbb756ecd0e1261.exe"

C:\Users\Admin\AppData\Local\Temp\f64a7307f5e75e2e73e93c5e2ed8009e8698e2c388a707afabbb756ecd0e1261.exe

"C:\Users\Admin\AppData\Local\Temp\f64a7307f5e75e2e73e93c5e2ed8009e8698e2c388a707afabbb756ecd0e1261.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 kenkyo.x24.eu udp
NL 5.255.110.9:443 kenkyo.x24.eu tcp
US 8.8.8.8:53 r11.o.lencr.org udp
GB 2.23.210.82:80 r11.o.lencr.org tcp
US 8.8.8.8:53 cq4cq.icu udp
US 8.8.8.8:53 cq4cq.icu udp
US 8.8.8.8:53 crl.microsoft.com udp
GB 2.19.117.18:80 crl.microsoft.com tcp

Files

\Users\Admin\AppData\Local\Temp\nseEB79.tmp\System.dll

MD5 564bb0373067e1785cba7e4c24aab4bf
SHA1 7c9416a01d821b10b2eef97b80899d24014d6fc1
SHA256 7a9ddee34562cd3703f1502b5c70e99cd5bba15de2b6845a3555033d7f6cb2a5
SHA512 22c61a323cb9293d7ec5c7e7e60674d0e2f7b29d55be25eb3c128ea2cd7440a1400cee17c43896b996278007c0d247f331a9b8964e3a40a0eb1404a9596c4472

memory/3004-10-0x0000000002DD0000-0x0000000004B9F000-memory.dmp

memory/3004-11-0x00000000776C1000-0x00000000777C2000-memory.dmp

memory/3004-12-0x00000000776C0000-0x0000000077869000-memory.dmp

memory/3004-13-0x0000000002DD0000-0x0000000004B9F000-memory.dmp

memory/3004-15-0x0000000002DD0000-0x0000000004B9F000-memory.dmp

memory/2900-14-0x00000000776C0000-0x0000000077869000-memory.dmp

memory/2900-31-0x00000000004B0000-0x0000000001512000-memory.dmp

memory/2900-32-0x00000000004B0000-0x0000000001512000-memory.dmp

memory/2900-33-0x00000000004B0000-0x0000000001512000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-11-06 15:23

Reported

2024-11-06 15:26

Platform

win10v2004-20241007-en

Max time kernel

148s

Max time network

151s

Command Line

"C:\Users\Admin\AppData\Local\Temp\f64a7307f5e75e2e73e93c5e2ed8009e8698e2c388a707afabbb756ecd0e1261.exe"

Signatures

Azorult

trojan infostealer azorult

Azorult family

azorult

Guloader family

guloader

Guloader,Cloudeye

downloader guloader

Suspicious use of NtCreateThreadExHideFromDebugger

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\f64a7307f5e75e2e73e93c5e2ed8009e8698e2c388a707afabbb756ecd0e1261.exe N/A

Drops file in Program Files directory

Description Indicator Process Target
File opened for modification C:\Program Files (x86)\slutstrenge.tri C:\Users\Admin\AppData\Local\Temp\f64a7307f5e75e2e73e93c5e2ed8009e8698e2c388a707afabbb756ecd0e1261.exe N/A

Drops file in Windows directory

Description Indicator Process Target
File opened for modification C:\Windows\resources\0409\Semiprofessionalized248\evaluxir.pra C:\Users\Admin\AppData\Local\Temp\f64a7307f5e75e2e73e93c5e2ed8009e8698e2c388a707afabbb756ecd0e1261.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\f64a7307f5e75e2e73e93c5e2ed8009e8698e2c388a707afabbb756ecd0e1261.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\f64a7307f5e75e2e73e93c5e2ed8009e8698e2c388a707afabbb756ecd0e1261.exe N/A

Suspicious behavior: MapViewOfSection

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\f64a7307f5e75e2e73e93c5e2ed8009e8698e2c388a707afabbb756ecd0e1261.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\f64a7307f5e75e2e73e93c5e2ed8009e8698e2c388a707afabbb756ecd0e1261.exe

"C:\Users\Admin\AppData\Local\Temp\f64a7307f5e75e2e73e93c5e2ed8009e8698e2c388a707afabbb756ecd0e1261.exe"

C:\Users\Admin\AppData\Local\Temp\f64a7307f5e75e2e73e93c5e2ed8009e8698e2c388a707afabbb756ecd0e1261.exe

"C:\Users\Admin\AppData\Local\Temp\f64a7307f5e75e2e73e93c5e2ed8009e8698e2c388a707afabbb756ecd0e1261.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 28.118.140.52.in-addr.arpa udp
US 8.8.8.8:53 88.210.23.2.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 217.106.137.52.in-addr.arpa udp
US 8.8.8.8:53 241.150.49.20.in-addr.arpa udp
US 8.8.8.8:53 kenkyo.x24.eu udp
NL 5.255.110.9:443 kenkyo.x24.eu tcp
US 8.8.8.8:53 r11.o.lencr.org udp
US 8.8.8.8:53 9.110.255.5.in-addr.arpa udp
US 8.8.8.8:53 32.169.19.2.in-addr.arpa udp
GB 2.23.210.82:80 r11.o.lencr.org tcp
US 8.8.8.8:53 cq4cq.icu udp
US 8.8.8.8:53 cq4cq.icu udp
US 8.8.8.8:53 82.210.23.2.in-addr.arpa udp
US 8.8.8.8:53 212.20.149.52.in-addr.arpa udp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
US 8.8.8.8:53 56.163.245.4.in-addr.arpa udp
US 8.8.8.8:53 75.117.19.2.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

Files

C:\Users\Admin\AppData\Local\Temp\nslAF3C.tmp\System.dll

MD5 564bb0373067e1785cba7e4c24aab4bf
SHA1 7c9416a01d821b10b2eef97b80899d24014d6fc1
SHA256 7a9ddee34562cd3703f1502b5c70e99cd5bba15de2b6845a3555033d7f6cb2a5
SHA512 22c61a323cb9293d7ec5c7e7e60674d0e2f7b29d55be25eb3c128ea2cd7440a1400cee17c43896b996278007c0d247f331a9b8964e3a40a0eb1404a9596c4472

memory/1020-9-0x0000000002AC0000-0x000000000488F000-memory.dmp

memory/1020-10-0x0000000077101000-0x0000000077221000-memory.dmp

memory/1020-11-0x0000000073DF5000-0x0000000073DF6000-memory.dmp

memory/1020-12-0x0000000002AC0000-0x000000000488F000-memory.dmp

memory/1020-13-0x0000000002AC0000-0x000000000488F000-memory.dmp

memory/2536-14-0x0000000001710000-0x00000000034DF000-memory.dmp

memory/2536-22-0x0000000000060000-0x0000000000087000-memory.dmp

memory/2536-21-0x00000000004B0000-0x0000000001704000-memory.dmp

memory/2536-23-0x00000000004B0000-0x0000000001704000-memory.dmp

memory/2536-24-0x0000000001710000-0x00000000034DF000-memory.dmp

Analysis: behavioral3

Detonation Overview

Submitted

2024-11-06 15:23

Reported

2024-11-06 15:26

Platform

win7-20241010-en

Max time kernel

119s

Max time network

120s

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 1740 -s 220

Network

N/A

Files

N/A

Analysis: behavioral4

Detonation Overview

Submitted

2024-11-06 15:23

Reported

2024-11-06 15:26

Platform

win10v2004-20241007-en

Max time kernel

91s

Max time network

149s

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 4268 wrote to memory of 4628 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 4268 wrote to memory of 4628 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 4268 wrote to memory of 4628 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 424 -p 4628 -ip 4628

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4628 -s 612

Network

Country Destination Domain Proto
US 8.8.8.8:53 241.150.49.20.in-addr.arpa udp
US 8.8.8.8:53 88.210.23.2.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 209.205.72.20.in-addr.arpa udp
US 8.8.8.8:53 53.210.109.20.in-addr.arpa udp
US 8.8.8.8:53 241.42.69.40.in-addr.arpa udp
US 8.8.8.8:53 98.117.19.2.in-addr.arpa udp
US 8.8.8.8:53 83.210.23.2.in-addr.arpa udp

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