Malware Analysis Report

2025-01-22 16:31

Sample ID 241005-gsbpdszann
Target 16741407e3bcfe0af5086d9a1b10d861_JaffaCakes118
SHA256 0af028f93b1dcb1caa4a4c5aa41e74e5ec71c52c939a93f21f3db68add043fcb
Tags
gozi banker discovery isfb 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: behavioral5

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral6

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

0af028f93b1dcb1caa4a4c5aa41e74e5ec71c52c939a93f21f3db68add043fcb

Threat Level: Known bad

The file 16741407e3bcfe0af5086d9a1b10d861_JaffaCakes118 was found to be: Known bad.

Malicious Activity Summary

gozi banker discovery isfb trojan

Gozi

Loads dropped DLL

Suspicious use of SetThreadContext

Enumerates physical storage devices

Program crash

Unsigned PE

System Location Discovery: System Language Discovery

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-10-05 06:03

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-10-05 06:03

Reported

2024-10-05 06:06

Platform

win7-20240903-en

Max time kernel

140s

Max time network

122s

Command Line

"C:\Users\Admin\AppData\Local\Temp\16741407e3bcfe0af5086d9a1b10d861_JaffaCakes118.exe"

Signatures

Gozi

banker trojan gozi

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\16741407e3bcfe0af5086d9a1b10d861_JaffaCakes118.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\16741407e3bcfe0af5086d9a1b10d861_JaffaCakes118.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2392 wrote to memory of 2544 N/A C:\Users\Admin\AppData\Local\Temp\16741407e3bcfe0af5086d9a1b10d861_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\16741407e3bcfe0af5086d9a1b10d861_JaffaCakes118.exe
PID 2392 wrote to memory of 2544 N/A C:\Users\Admin\AppData\Local\Temp\16741407e3bcfe0af5086d9a1b10d861_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\16741407e3bcfe0af5086d9a1b10d861_JaffaCakes118.exe
PID 2392 wrote to memory of 2544 N/A C:\Users\Admin\AppData\Local\Temp\16741407e3bcfe0af5086d9a1b10d861_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\16741407e3bcfe0af5086d9a1b10d861_JaffaCakes118.exe
PID 2392 wrote to memory of 2544 N/A C:\Users\Admin\AppData\Local\Temp\16741407e3bcfe0af5086d9a1b10d861_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\16741407e3bcfe0af5086d9a1b10d861_JaffaCakes118.exe
PID 2392 wrote to memory of 2544 N/A C:\Users\Admin\AppData\Local\Temp\16741407e3bcfe0af5086d9a1b10d861_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\16741407e3bcfe0af5086d9a1b10d861_JaffaCakes118.exe
PID 2392 wrote to memory of 2544 N/A C:\Users\Admin\AppData\Local\Temp\16741407e3bcfe0af5086d9a1b10d861_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\16741407e3bcfe0af5086d9a1b10d861_JaffaCakes118.exe
PID 2392 wrote to memory of 2544 N/A C:\Users\Admin\AppData\Local\Temp\16741407e3bcfe0af5086d9a1b10d861_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\16741407e3bcfe0af5086d9a1b10d861_JaffaCakes118.exe
PID 2392 wrote to memory of 2544 N/A C:\Users\Admin\AppData\Local\Temp\16741407e3bcfe0af5086d9a1b10d861_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\16741407e3bcfe0af5086d9a1b10d861_JaffaCakes118.exe
PID 2392 wrote to memory of 2544 N/A C:\Users\Admin\AppData\Local\Temp\16741407e3bcfe0af5086d9a1b10d861_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\16741407e3bcfe0af5086d9a1b10d861_JaffaCakes118.exe
PID 2392 wrote to memory of 2544 N/A C:\Users\Admin\AppData\Local\Temp\16741407e3bcfe0af5086d9a1b10d861_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\16741407e3bcfe0af5086d9a1b10d861_JaffaCakes118.exe
PID 2392 wrote to memory of 2544 N/A C:\Users\Admin\AppData\Local\Temp\16741407e3bcfe0af5086d9a1b10d861_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\16741407e3bcfe0af5086d9a1b10d861_JaffaCakes118.exe

Processes

C:\Users\Admin\AppData\Local\Temp\16741407e3bcfe0af5086d9a1b10d861_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\16741407e3bcfe0af5086d9a1b10d861_JaffaCakes118.exe"

C:\Users\Admin\AppData\Local\Temp\16741407e3bcfe0af5086d9a1b10d861_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\16741407e3bcfe0af5086d9a1b10d861_JaffaCakes118.exe"

Network

N/A

Files

\Users\Admin\AppData\Local\Temp\nsdC0D0.tmp\System.dll

MD5 3e6bf00b3ac976122f982ae2aadb1c51
SHA1 caab188f7fdc84d3fdcb2922edeeb5ed576bd31d
SHA256 4ff9b2678d698677c5d9732678f9cf53f17290e09d053691aac4cc6e6f595cbe
SHA512 1286f05e6a7e6b691f6e479638e7179897598e171b52eb3a3dc0e830415251069d29416b6d1ffc6d7dce8da5625e1479be06db9b7179e7776659c5c1ad6aa706

memory/2392-11-0x0000000000640000-0x000000000067A000-memory.dmp

\Users\Admin\AppData\Local\Temp\ulex.dll

MD5 640a9f1588d0bff5ce50626760d1498d
SHA1 3845b23b73391bb9040c6139d257b9fd861999a5
SHA256 8783caabdcfacdfaaf43cf5924395006ad14e4c8852a3addf624bdced568c697
SHA512 be48053ca3a542e01831aa4ed65d248082debbb34cae0fb58f49f562cf429fa25c44b7a5de82f004bb2ee856887c5f6d6d91283fea4179d3055db3b7cde17d74

memory/2544-14-0x0000000000400000-0x0000000000449000-memory.dmp

memory/2544-28-0x0000000000400000-0x0000000000449000-memory.dmp

memory/2544-30-0x0000000000400000-0x0000000000449000-memory.dmp

memory/2544-26-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

memory/2544-24-0x0000000000400000-0x0000000000449000-memory.dmp

memory/2544-22-0x0000000000400000-0x0000000000449000-memory.dmp

memory/2544-20-0x0000000000400000-0x0000000000449000-memory.dmp

memory/2544-18-0x0000000000400000-0x0000000000449000-memory.dmp

memory/2544-16-0x0000000000400000-0x0000000000449000-memory.dmp

memory/2544-32-0x0000000000400000-0x0000000000449000-memory.dmp

memory/2544-33-0x0000000000400000-0x0000000000449000-memory.dmp

memory/2544-34-0x0000000000400000-0x0000000000449000-memory.dmp

memory/2544-35-0x0000000000400000-0x0000000000449000-memory.dmp

memory/2544-36-0x0000000000400000-0x0000000000449000-memory.dmp

memory/2544-37-0x0000000000400000-0x0000000000449000-memory.dmp

memory/2544-38-0x0000000000400000-0x0000000000449000-memory.dmp

memory/2544-39-0x0000000000400000-0x0000000000449000-memory.dmp

memory/2544-40-0x0000000000400000-0x0000000000449000-memory.dmp

memory/2544-41-0x0000000000400000-0x0000000000449000-memory.dmp

memory/2544-42-0x0000000000400000-0x0000000000449000-memory.dmp

memory/2544-43-0x0000000000400000-0x0000000000449000-memory.dmp

memory/2544-44-0x0000000000400000-0x0000000000449000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-10-05 06:03

Reported

2024-10-05 06:06

Platform

win10v2004-20240802-en

Max time kernel

141s

Max time network

95s

Command Line

"C:\Users\Admin\AppData\Local\Temp\16741407e3bcfe0af5086d9a1b10d861_JaffaCakes118.exe"

Signatures

Gozi

banker trojan gozi

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\16741407e3bcfe0af5086d9a1b10d861_JaffaCakes118.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4296 wrote to memory of 4216 N/A C:\Users\Admin\AppData\Local\Temp\16741407e3bcfe0af5086d9a1b10d861_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\16741407e3bcfe0af5086d9a1b10d861_JaffaCakes118.exe
PID 4296 wrote to memory of 4216 N/A C:\Users\Admin\AppData\Local\Temp\16741407e3bcfe0af5086d9a1b10d861_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\16741407e3bcfe0af5086d9a1b10d861_JaffaCakes118.exe
PID 4296 wrote to memory of 4216 N/A C:\Users\Admin\AppData\Local\Temp\16741407e3bcfe0af5086d9a1b10d861_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\16741407e3bcfe0af5086d9a1b10d861_JaffaCakes118.exe
PID 4296 wrote to memory of 4216 N/A C:\Users\Admin\AppData\Local\Temp\16741407e3bcfe0af5086d9a1b10d861_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\16741407e3bcfe0af5086d9a1b10d861_JaffaCakes118.exe
PID 4296 wrote to memory of 4216 N/A C:\Users\Admin\AppData\Local\Temp\16741407e3bcfe0af5086d9a1b10d861_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\16741407e3bcfe0af5086d9a1b10d861_JaffaCakes118.exe
PID 4296 wrote to memory of 4216 N/A C:\Users\Admin\AppData\Local\Temp\16741407e3bcfe0af5086d9a1b10d861_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\16741407e3bcfe0af5086d9a1b10d861_JaffaCakes118.exe
PID 4296 wrote to memory of 4216 N/A C:\Users\Admin\AppData\Local\Temp\16741407e3bcfe0af5086d9a1b10d861_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\16741407e3bcfe0af5086d9a1b10d861_JaffaCakes118.exe
PID 4296 wrote to memory of 4216 N/A C:\Users\Admin\AppData\Local\Temp\16741407e3bcfe0af5086d9a1b10d861_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\16741407e3bcfe0af5086d9a1b10d861_JaffaCakes118.exe
PID 4296 wrote to memory of 4216 N/A C:\Users\Admin\AppData\Local\Temp\16741407e3bcfe0af5086d9a1b10d861_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\16741407e3bcfe0af5086d9a1b10d861_JaffaCakes118.exe
PID 4296 wrote to memory of 4216 N/A C:\Users\Admin\AppData\Local\Temp\16741407e3bcfe0af5086d9a1b10d861_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\16741407e3bcfe0af5086d9a1b10d861_JaffaCakes118.exe
PID 4296 wrote to memory of 4216 N/A C:\Users\Admin\AppData\Local\Temp\16741407e3bcfe0af5086d9a1b10d861_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\16741407e3bcfe0af5086d9a1b10d861_JaffaCakes118.exe

Processes

C:\Users\Admin\AppData\Local\Temp\16741407e3bcfe0af5086d9a1b10d861_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\16741407e3bcfe0af5086d9a1b10d861_JaffaCakes118.exe"

C:\Users\Admin\AppData\Local\Temp\16741407e3bcfe0af5086d9a1b10d861_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\16741407e3bcfe0af5086d9a1b10d861_JaffaCakes118.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 196.249.167.52.in-addr.arpa udp
US 8.8.8.8:53 4.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 154.239.44.20.in-addr.arpa udp
US 8.8.8.8:53 50.23.12.20.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.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 48.229.111.52.in-addr.arpa udp

Files

C:\Users\Admin\AppData\Local\Temp\nsl888A.tmp\System.dll

MD5 3e6bf00b3ac976122f982ae2aadb1c51
SHA1 caab188f7fdc84d3fdcb2922edeeb5ed576bd31d
SHA256 4ff9b2678d698677c5d9732678f9cf53f17290e09d053691aac4cc6e6f595cbe
SHA512 1286f05e6a7e6b691f6e479638e7179897598e171b52eb3a3dc0e830415251069d29416b6d1ffc6d7dce8da5625e1479be06db9b7179e7776659c5c1ad6aa706

C:\Users\Admin\AppData\Local\Temp\ulex.dll

MD5 640a9f1588d0bff5ce50626760d1498d
SHA1 3845b23b73391bb9040c6139d257b9fd861999a5
SHA256 8783caabdcfacdfaaf43cf5924395006ad14e4c8852a3addf624bdced568c697
SHA512 be48053ca3a542e01831aa4ed65d248082debbb34cae0fb58f49f562cf429fa25c44b7a5de82f004bb2ee856887c5f6d6d91283fea4179d3055db3b7cde17d74

memory/4296-13-0x0000000002290000-0x00000000022CA000-memory.dmp

memory/4216-17-0x0000000000400000-0x0000000000449000-memory.dmp

memory/4216-19-0x0000000000400000-0x0000000000449000-memory.dmp

memory/4216-21-0x0000000000400000-0x0000000000449000-memory.dmp

memory/4216-22-0x0000000000400000-0x0000000000449000-memory.dmp

Analysis: behavioral3

Detonation Overview

Submitted

2024-10-05 06:03

Reported

2024-10-05 06:06

Platform

win7-20240903-en

Max time kernel

14s

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 2180 -s 228

Network

N/A

Files

N/A

Analysis: behavioral4

Detonation Overview

Submitted

2024-10-05 06:03

Reported

2024-10-05 06:06

Platform

win10v2004-20240802-en

Max time kernel

149s

Max time network

150s

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 3276 wrote to memory of 2004 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 3276 wrote to memory of 2004 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 3276 wrote to memory of 2004 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 432 -p 2004 -ip 2004

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2004 -s 612

Network

Country Destination Domain Proto
US 8.8.8.8:53 28.118.140.52.in-addr.arpa udp
US 8.8.8.8:53 83.210.23.2.in-addr.arpa udp
US 8.8.8.8:53 136.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 154.239.44.20.in-addr.arpa udp
US 8.8.8.8:53 212.20.149.52.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 21.236.111.52.in-addr.arpa udp

Files

N/A

Analysis: behavioral5

Detonation Overview

Submitted

2024-10-05 06:03

Reported

2024-10-05 06:06

Platform

win7-20240903-en

Max time kernel

119s

Max time network

120s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\ulex.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\ulex.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\ulex.dll,#1

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2344 -s 260

Network

N/A

Files

N/A

Analysis: behavioral6

Detonation Overview

Submitted

2024-10-05 06:03

Reported

2024-10-05 06:06

Platform

win10v2004-20240802-en

Max time kernel

90s

Max time network

136s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\ulex.dll,#1

Signatures

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 4668 wrote to memory of 1732 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 4668 wrote to memory of 1732 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 4668 wrote to memory of 1732 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\ulex.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\ulex.dll,#1

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1732 -ip 1732

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 1732 -s 568

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 184 -p 1732 -ip 1732

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 1732 -s 800

Network

Country Destination Domain Proto
US 8.8.8.8:53 241.150.49.20.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 138.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 13.86.106.20.in-addr.arpa udp
US 8.8.8.8:53 56.163.245.4.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 83.210.23.2.in-addr.arpa udp
US 8.8.8.8:53 21.236.111.52.in-addr.arpa udp

Files

N/A