Malware Analysis Report

2024-12-06 03:02

Sample ID 241119-vtwb3sylb1
Target 27ab1252f52866eca728cdbaaf3dcf4ba9c6c0b14a1d8c8973eb13ab2850cb2b.exe
SHA256 27ab1252f52866eca728cdbaaf3dcf4ba9c6c0b14a1d8c8973eb13ab2850cb2b
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

27ab1252f52866eca728cdbaaf3dcf4ba9c6c0b14a1d8c8973eb13ab2850cb2b

Threat Level: Known bad

The file 27ab1252f52866eca728cdbaaf3dcf4ba9c6c0b14a1d8c8973eb13ab2850cb2b.exe was found to be: Known bad.

Malicious Activity Summary

azorult guloader discovery downloader infostealer trojan

Azorult family

Guloader,Cloudeye

Guloader family

Azorult

Loads dropped DLL

Suspicious use of NtCreateThreadExHideFromDebugger

Suspicious use of SetThreadContext

Suspicious use of NtSetInformationThreadHideFromDebugger

Drops file in Windows directory

Enumerates physical storage devices

System Location Discovery: System Language Discovery

Program crash

Unsigned PE

Suspicious use of WriteProcessMemory

Suspicious behavior: MapViewOfSection

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-11-19 17:17

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

2024-11-19 17:17

Reported

2024-11-19 17:20

Platform

win7-20241010-en

Max time kernel

53s

Max time network

59s

Command Line

"C:\Users\Admin\AppData\Local\Temp\27ab1252f52866eca728cdbaaf3dcf4ba9c6c0b14a1d8c8973eb13ab2850cb2b.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\27ab1252f52866eca728cdbaaf3dcf4ba9c6c0b14a1d8c8973eb13ab2850cb2b.exe N/A

Drops file in Windows directory

Description Indicator Process Target
File opened for modification C:\Windows\resources\0409\slnger\barometerstandenes.san C:\Users\Admin\AppData\Local\Temp\27ab1252f52866eca728cdbaaf3dcf4ba9c6c0b14a1d8c8973eb13ab2850cb2b.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\27ab1252f52866eca728cdbaaf3dcf4ba9c6c0b14a1d8c8973eb13ab2850cb2b.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\27ab1252f52866eca728cdbaaf3dcf4ba9c6c0b14a1d8c8973eb13ab2850cb2b.exe N/A

Suspicious behavior: MapViewOfSection

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\27ab1252f52866eca728cdbaaf3dcf4ba9c6c0b14a1d8c8973eb13ab2850cb2b.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2548 wrote to memory of 2964 N/A C:\Users\Admin\AppData\Local\Temp\27ab1252f52866eca728cdbaaf3dcf4ba9c6c0b14a1d8c8973eb13ab2850cb2b.exe C:\Users\Admin\AppData\Local\Temp\27ab1252f52866eca728cdbaaf3dcf4ba9c6c0b14a1d8c8973eb13ab2850cb2b.exe
PID 2548 wrote to memory of 2964 N/A C:\Users\Admin\AppData\Local\Temp\27ab1252f52866eca728cdbaaf3dcf4ba9c6c0b14a1d8c8973eb13ab2850cb2b.exe C:\Users\Admin\AppData\Local\Temp\27ab1252f52866eca728cdbaaf3dcf4ba9c6c0b14a1d8c8973eb13ab2850cb2b.exe
PID 2548 wrote to memory of 2964 N/A C:\Users\Admin\AppData\Local\Temp\27ab1252f52866eca728cdbaaf3dcf4ba9c6c0b14a1d8c8973eb13ab2850cb2b.exe C:\Users\Admin\AppData\Local\Temp\27ab1252f52866eca728cdbaaf3dcf4ba9c6c0b14a1d8c8973eb13ab2850cb2b.exe
PID 2548 wrote to memory of 2964 N/A C:\Users\Admin\AppData\Local\Temp\27ab1252f52866eca728cdbaaf3dcf4ba9c6c0b14a1d8c8973eb13ab2850cb2b.exe C:\Users\Admin\AppData\Local\Temp\27ab1252f52866eca728cdbaaf3dcf4ba9c6c0b14a1d8c8973eb13ab2850cb2b.exe
PID 2548 wrote to memory of 2964 N/A C:\Users\Admin\AppData\Local\Temp\27ab1252f52866eca728cdbaaf3dcf4ba9c6c0b14a1d8c8973eb13ab2850cb2b.exe C:\Users\Admin\AppData\Local\Temp\27ab1252f52866eca728cdbaaf3dcf4ba9c6c0b14a1d8c8973eb13ab2850cb2b.exe
PID 2548 wrote to memory of 2964 N/A C:\Users\Admin\AppData\Local\Temp\27ab1252f52866eca728cdbaaf3dcf4ba9c6c0b14a1d8c8973eb13ab2850cb2b.exe C:\Users\Admin\AppData\Local\Temp\27ab1252f52866eca728cdbaaf3dcf4ba9c6c0b14a1d8c8973eb13ab2850cb2b.exe

Processes

C:\Users\Admin\AppData\Local\Temp\27ab1252f52866eca728cdbaaf3dcf4ba9c6c0b14a1d8c8973eb13ab2850cb2b.exe

"C:\Users\Admin\AppData\Local\Temp\27ab1252f52866eca728cdbaaf3dcf4ba9c6c0b14a1d8c8973eb13ab2850cb2b.exe"

C:\Users\Admin\AppData\Local\Temp\27ab1252f52866eca728cdbaaf3dcf4ba9c6c0b14a1d8c8973eb13ab2850cb2b.exe

"C:\Users\Admin\AppData\Local\Temp\27ab1252f52866eca728cdbaaf3dcf4ba9c6c0b14a1d8c8973eb13ab2850cb2b.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 mertvinc.com.tr udp
TR 185.244.144.68:80 mertvinc.com.tr tcp
US 8.8.8.8:53 mhlc.shop udp
US 172.67.208.107:80 mhlc.shop tcp

Files

\Users\Admin\AppData\Local\Temp\nsj9EC0.tmp\System.dll

MD5 75ed96254fbf894e42058062b4b4f0d1
SHA1 996503f1383b49021eb3427bc28d13b5bbd11977
SHA256 a632d74332b3f08f834c732a103dafeb09a540823a2217ca7f49159755e8f1d7
SHA512 58174896db81d481947b8745dafe3a02c150f3938bb4543256e8cce1145154e016d481df9fe68dac6d48407c62cbe20753320ebd5fe5e84806d07ce78e0eb0c4

memory/2548-9-0x0000000002C60000-0x0000000005312000-memory.dmp

memory/2548-10-0x0000000002C60000-0x0000000005312000-memory.dmp

memory/2548-11-0x0000000077911000-0x0000000077A12000-memory.dmp

memory/2548-12-0x0000000077910000-0x0000000077AB9000-memory.dmp

memory/2964-13-0x0000000077910000-0x0000000077AB9000-memory.dmp

memory/2548-14-0x0000000002C60000-0x0000000005312000-memory.dmp

memory/2964-15-0x00000000007E0000-0x0000000001842000-memory.dmp

memory/2964-16-0x00000000007E0000-0x0000000001842000-memory.dmp

memory/2964-17-0x00000000007E0000-0x0000000001842000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-11-19 17:17

Reported

2024-11-19 17:20

Platform

win10v2004-20241007-en

Max time kernel

149s

Max time network

155s

Command Line

"C:\Users\Admin\AppData\Local\Temp\27ab1252f52866eca728cdbaaf3dcf4ba9c6c0b14a1d8c8973eb13ab2850cb2b.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\27ab1252f52866eca728cdbaaf3dcf4ba9c6c0b14a1d8c8973eb13ab2850cb2b.exe N/A

Drops file in Windows directory

Description Indicator Process Target
File opened for modification C:\Windows\resources\0409\slnger\barometerstandenes.san C:\Users\Admin\AppData\Local\Temp\27ab1252f52866eca728cdbaaf3dcf4ba9c6c0b14a1d8c8973eb13ab2850cb2b.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\27ab1252f52866eca728cdbaaf3dcf4ba9c6c0b14a1d8c8973eb13ab2850cb2b.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\27ab1252f52866eca728cdbaaf3dcf4ba9c6c0b14a1d8c8973eb13ab2850cb2b.exe N/A

Suspicious behavior: MapViewOfSection

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\27ab1252f52866eca728cdbaaf3dcf4ba9c6c0b14a1d8c8973eb13ab2850cb2b.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\27ab1252f52866eca728cdbaaf3dcf4ba9c6c0b14a1d8c8973eb13ab2850cb2b.exe

"C:\Users\Admin\AppData\Local\Temp\27ab1252f52866eca728cdbaaf3dcf4ba9c6c0b14a1d8c8973eb13ab2850cb2b.exe"

C:\Users\Admin\AppData\Local\Temp\27ab1252f52866eca728cdbaaf3dcf4ba9c6c0b14a1d8c8973eb13ab2850cb2b.exe

"C:\Users\Admin\AppData\Local\Temp\27ab1252f52866eca728cdbaaf3dcf4ba9c6c0b14a1d8c8973eb13ab2850cb2b.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 217.106.137.52.in-addr.arpa udp
US 8.8.8.8:53 83.210.23.2.in-addr.arpa udp
US 8.8.8.8:53 71.31.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 mertvinc.com.tr udp
TR 185.244.144.68:80 mertvinc.com.tr tcp
US 8.8.8.8:53 mhlc.shop udp
US 104.21.23.20:80 mhlc.shop tcp
US 8.8.8.8:53 68.144.244.185.in-addr.arpa udp
US 8.8.8.8:53 20.23.21.104.in-addr.arpa udp
US 8.8.8.8:53 200.163.202.172.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 134.130.81.91.in-addr.arpa udp
US 8.8.8.8:53 88.210.23.2.in-addr.arpa udp
US 8.8.8.8:53 11.227.111.52.in-addr.arpa udp
US 8.8.8.8:53 9.173.189.20.in-addr.arpa udp

Files

C:\Users\Admin\AppData\Local\Temp\nsp2A7A.tmp\System.dll

MD5 75ed96254fbf894e42058062b4b4f0d1
SHA1 996503f1383b49021eb3427bc28d13b5bbd11977
SHA256 a632d74332b3f08f834c732a103dafeb09a540823a2217ca7f49159755e8f1d7
SHA512 58174896db81d481947b8745dafe3a02c150f3938bb4543256e8cce1145154e016d481df9fe68dac6d48407c62cbe20753320ebd5fe5e84806d07ce78e0eb0c4

memory/1708-8-0x0000000002DF0000-0x00000000054A2000-memory.dmp

memory/1708-9-0x0000000077461000-0x0000000077581000-memory.dmp

memory/1708-11-0x0000000074154000-0x0000000074155000-memory.dmp

memory/1708-10-0x0000000002DF0000-0x00000000054A2000-memory.dmp

memory/1708-12-0x0000000002DF0000-0x00000000054A2000-memory.dmp

memory/1072-13-0x0000000001A40000-0x00000000040F2000-memory.dmp

memory/1072-15-0x0000000000060000-0x0000000000087000-memory.dmp

memory/1072-14-0x00000000007E0000-0x0000000001A34000-memory.dmp

memory/1072-16-0x00000000007E0000-0x0000000001A34000-memory.dmp

memory/1072-17-0x0000000001A40000-0x00000000040F2000-memory.dmp

Analysis: behavioral3

Detonation Overview

Submitted

2024-11-19 17:17

Reported

2024-11-19 17:20

Platform

win7-20241010-en

Max time kernel

12s

Max time network

18s

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 2448 -s 224

Network

N/A

Files

N/A

Analysis: behavioral4

Detonation Overview

Submitted

2024-11-19 17:17

Reported

2024-11-19 17:19

Platform

win10v2004-20241007-en

Max time kernel

148s

Max time network

151s

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 1036 wrote to memory of 2964 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 1036 wrote to memory of 2964 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 1036 wrote to memory of 2964 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 2964 -ip 2964

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2964 -s 612

Network

Country Destination Domain Proto
US 8.8.8.8:53 133.211.185.52.in-addr.arpa udp
US 8.8.8.8:53 64.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 217.106.137.52.in-addr.arpa udp
US 8.8.8.8:53 200.163.202.172.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 56.163.245.4.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

Files

N/A