Malware Analysis Report

2025-01-23 13:22

Sample ID 241225-am2kas1qex
Target JaffaCakes118_4a2015231b4dfe16b32d48c49cf38fb098e01a2dd5016eb91304d2ba033d6901
SHA256 4a2015231b4dfe16b32d48c49cf38fb098e01a2dd5016eb91304d2ba033d6901
Tags
trickbot chil69 banker discovery packer 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

4a2015231b4dfe16b32d48c49cf38fb098e01a2dd5016eb91304d2ba033d6901

Threat Level: Known bad

The file JaffaCakes118_4a2015231b4dfe16b32d48c49cf38fb098e01a2dd5016eb91304d2ba033d6901 was found to be: Known bad.

Malicious Activity Summary

trickbot chil69 banker discovery packer trojan

Trickbot

Trickbot family

Templ.dll packer

Program crash

Unsigned PE

System Location Discovery: System Language Discovery

Suspicious use of WriteProcessMemory

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-12-25 00:20

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-12-25 00:20

Reported

2024-12-25 00:23

Platform

win7-20240903-en

Max time kernel

118s

Max time network

119s

Command Line

cmd /c "C:\Users\Admin\AppData\Local\Temp\trigger.bat"

Signatures

Trickbot

trojan banker trickbot

Trickbot family

trickbot

Templ.dll packer

packer
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

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 AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Windows\system32\wermgr.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\system32\wermgr.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\system32\wermgr.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2260 wrote to memory of 2752 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\rundll32.exe
PID 2260 wrote to memory of 2752 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\rundll32.exe
PID 2260 wrote to memory of 2752 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\rundll32.exe
PID 2752 wrote to memory of 2756 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2752 wrote to memory of 2756 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2752 wrote to memory of 2756 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2752 wrote to memory of 2756 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2752 wrote to memory of 2756 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2752 wrote to memory of 2756 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2752 wrote to memory of 2756 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 2756 wrote to memory of 2680 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\system32\wermgr.exe
PID 2756 wrote to memory of 2680 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\system32\wermgr.exe
PID 2756 wrote to memory of 2680 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\system32\wermgr.exe
PID 2756 wrote to memory of 2680 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\system32\wermgr.exe
PID 2756 wrote to memory of 2680 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\system32\wermgr.exe
PID 2756 wrote to memory of 2680 N/A C:\Windows\SysWOW64\rundll32.exe C:\Windows\system32\wermgr.exe

Processes

C:\Windows\system32\cmd.exe

cmd /c "C:\Users\Admin\AppData\Local\Temp\trigger.bat"

C:\Windows\system32\rundll32.exe

rundll32.exe update.dll,StartW

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe update.dll,StartW

C:\Windows\system32\wermgr.exe

C:\Windows\system32\wermgr.exe

Network

N/A

Files

memory/2756-4-0x0000000000200000-0x000000000022B000-memory.dmp

memory/2756-0-0x0000000000230000-0x000000000025E000-memory.dmp

memory/2756-5-0x00000000002E0000-0x000000000030D000-memory.dmp

memory/2756-8-0x00000000006E0000-0x0000000000718000-memory.dmp

memory/2756-10-0x00000000005D0000-0x00000000005D3000-memory.dmp

memory/2756-9-0x00000000005E0000-0x00000000005E1000-memory.dmp

memory/2680-11-0x0000000000060000-0x0000000000080000-memory.dmp

memory/2756-12-0x00000000006E0000-0x0000000000718000-memory.dmp

memory/2756-13-0x00000000005D0000-0x00000000005D3000-memory.dmp

memory/2680-14-0x0000000000060000-0x0000000000080000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-12-25 00:20

Reported

2024-12-25 00:23

Platform

win10v2004-20241007-en

Max time kernel

103s

Max time network

151s

Command Line

C:\Windows\system32\cmd.exe /c "C:\Users\Admin\AppData\Local\Temp\trigger.bat"

Signatures

Trickbot

trojan banker trickbot

Trickbot family

trickbot

Templ.dll packer

packer
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

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 AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Windows\system32\wermgr.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\system32\wermgr.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\system32\wermgr.exe N/A

Processes

C:\Windows\system32\cmd.exe

C:\Windows\system32\cmd.exe /c "C:\Users\Admin\AppData\Local\Temp\trigger.bat"

C:\Windows\system32\rundll32.exe

rundll32.exe update.dll,StartW

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe update.dll,StartW

C:\Windows\system32\wermgr.exe

C:\Windows\system32\wermgr.exe

Network

Country Destination Domain Proto
US 8.8.8.8:53 28.118.140.52.in-addr.arpa udp
US 8.8.8.8:53 138.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 58.55.71.13.in-addr.arpa udp
US 8.8.8.8:53 217.106.137.52.in-addr.arpa udp
US 8.8.8.8:53 53.210.109.20.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 73.144.22.2.in-addr.arpa udp

Files

memory/1008-0-0x0000000000C90000-0x0000000000CBE000-memory.dmp

memory/1008-5-0x0000000000C60000-0x0000000000C8B000-memory.dmp

memory/1008-4-0x0000000002570000-0x000000000259D000-memory.dmp

memory/1008-8-0x0000000002900000-0x0000000002938000-memory.dmp

memory/1008-9-0x0000000002970000-0x0000000002971000-memory.dmp

memory/1008-10-0x0000000002960000-0x0000000002963000-memory.dmp

memory/100-11-0x0000021958C40000-0x0000021958C60000-memory.dmp

memory/1008-12-0x0000000002900000-0x0000000002938000-memory.dmp

memory/1008-13-0x0000000002960000-0x0000000002963000-memory.dmp

memory/1008-14-0x0000000000C50000-0x0000000000C57000-memory.dmp

memory/100-15-0x0000021958C40000-0x0000021958C60000-memory.dmp

Analysis: behavioral3

Detonation Overview

Submitted

2024-12-25 00:20

Reported

2024-12-25 00:23

Platform

win7-20240903-en

Max time kernel

117s

Max time network

118s

Command Line

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

C:\Windows\SysWOW64\rundll32.exe

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

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 1344 -s 220

Network

N/A

Files

N/A

Analysis: behavioral4

Detonation Overview

Submitted

2024-12-25 00:20

Reported

2024-12-25 00:23

Platform

win10v2004-20241007-en

Max time kernel

93s

Max time network

100s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\update.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 3216 wrote to memory of 3872 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 3216 wrote to memory of 3872 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 3216 wrote to memory of 3872 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\update.dll,#1

C:\Windows\SysWOW64\rundll32.exe

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

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 3872 -ip 3872

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 3872 -s 612

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 228.249.119.40.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 140.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 53.210.109.20.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 181.129.81.91.in-addr.arpa udp

Files

N/A