Malware Analysis Report

2025-08-10 22:43

Sample ID 250127-znl9fawjcj
Target JaffaCakes118_4392a267463ca34065f7d7a946ce6361
SHA256 d3a7b7b8400ecf781dcfccd1160783d198cc906e4b96906b9624d950b506b1fc
Tags
discovery
score
7/10

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 Overview

score
7/10

SHA256

d3a7b7b8400ecf781dcfccd1160783d198cc906e4b96906b9624d950b506b1fc

Threat Level: Shows suspicious behavior

The file JaffaCakes118_4392a267463ca34065f7d7a946ce6361 was found to be: Shows suspicious behavior.

Malicious Activity Summary

discovery

Deletes itself

Executes dropped EXE

Drops file in Windows directory

Unsigned PE

System Location Discovery: System Language Discovery

Program crash

Modifies data under HKEY_USERS

Suspicious use of FindShellTrayWindow

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2025-01-27 20:51

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2025-01-27 20:51

Reported

2025-01-27 20:54

Platform

win7-20240708-en

Max time kernel

147s

Max time network

120s

Command Line

"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_4392a267463ca34065f7d7a946ce6361.exe"

Signatures

Deletes itself

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\cmd.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Windows\Utility Mang.exe N/A

Drops file in Windows directory

Description Indicator Process Target
File created C:\Windows\Utility Mang.exe C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_4392a267463ca34065f7d7a946ce6361.exe N/A
File opened for modification C:\Windows\Utility Mang.exe C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_4392a267463ca34065f7d7a946ce6361.exe N/A
File created C:\Windows\Uer.bat C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_4392a267463ca34065f7d7a946ce6361.exe N/A

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\Utility Mang.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\cmd.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_4392a267463ca34065f7d7a946ce6361.exe N/A

Modifies data under HKEY_USERS

Description Indicator Process Target
Set value (int) \REGISTRY\USER\.DEFAULT\SYSTEM\CurrentControlSet\Control\MediaProperties\PrivateProperties\Joystick\Winmm\wheel = "1" C:\Windows\Utility Mang.exe N/A
Key created \REGISTRY\USER\.DEFAULT\System\CurrentControlSet\Control\MediaProperties\PrivateProperties\Joystick\Winmm C:\Windows\Utility Mang.exe N/A
Key created \REGISTRY\USER\.DEFAULT\SYSTEM\CurrentControlSet C:\Windows\Utility Mang.exe N/A
Key created \REGISTRY\USER\.DEFAULT\SYSTEM\CurrentControlSet\Control C:\Windows\Utility Mang.exe N/A
Key created \REGISTRY\USER\.DEFAULT\SYSTEM\CurrentControlSet\Control\MediaProperties C:\Windows\Utility Mang.exe N/A
Key created \REGISTRY\USER\.DEFAULT\SYSTEM\CurrentControlSet\Control\MediaProperties\PrivateProperties C:\Windows\Utility Mang.exe N/A
Key created \REGISTRY\USER\.DEFAULT\SYSTEM\CurrentControlSet\Control\MediaProperties\PrivateProperties\Joystick\Winmm C:\Windows\Utility Mang.exe N/A
Key created \REGISTRY\USER\.DEFAULT\System C:\Windows\Utility Mang.exe N/A
Key created \REGISTRY\USER\.DEFAULT\SYSTEM\CurrentControlSet\Control\MediaProperties\PrivateProperties\Joystick C:\Windows\Utility Mang.exe N/A

Suspicious use of FindShellTrayWindow

Description Indicator Process Target
N/A N/A C:\Windows\Utility Mang.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_4392a267463ca34065f7d7a946ce6361.exe

"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_4392a267463ca34065f7d7a946ce6361.exe"

C:\Windows\Utility Mang.exe

"C:\Windows\Utility Mang.exe"

C:\Program Files\Internet Explorer\IEXPLORE.EXE

"C:\Program Files\Internet Explorer\IEXPLORE.EXE"

C:\Windows\SysWOW64\cmd.exe

cmd /c C:\Windows\Uer.bat

Network

Country Destination Domain Proto
US 8.8.8.8:53 l625985028.gicp.net udp

Files

memory/2404-0-0x0000000000400000-0x00000000004E3000-memory.dmp

memory/2404-1-0x0000000000260000-0x0000000000261000-memory.dmp

memory/2404-2-0x0000000000260000-0x0000000000261000-memory.dmp

C:\Windows\Utility Mang.exe

MD5 4392a267463ca34065f7d7a946ce6361
SHA1 f0f35c157dba389858ec3fe3bf71769dc22f81c9
SHA256 d3a7b7b8400ecf781dcfccd1160783d198cc906e4b96906b9624d950b506b1fc
SHA512 863300a9cb3c05d0903fe461fed248168450b9c1c363d42a3d806bac42c776287d9f17d3dc5692dcfefdf476d7a66f2c4bc365ab59df190dec6d844f533e69a9

memory/2408-6-0x0000000000260000-0x0000000000261000-memory.dmp

C:\Windows\Uer.bat

MD5 b1cbe41d15542f7b30c4cd501f6d3f2c
SHA1 bc9932c60d777fb68795433444f716494fc3e3dd
SHA256 44abe5a681992bbc1a09c2a674df09cbed77e0493fef5db06d83731ba34f7341
SHA512 08eab59b01b6bcb4417dfe77b4d54c617e9d7d6c12d27def70dc41659c6f20f7fed3f779cfeb130bb924515c4b2418568e7e1834ba34506f52e4bdff0fa73999

memory/2404-15-0x0000000000400000-0x00000000004E3000-memory.dmp

memory/2408-17-0x0000000000400000-0x00000000004E3000-memory.dmp

memory/2408-18-0x0000000000260000-0x0000000000261000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2025-01-27 20:51

Reported

2025-01-28 09:22

Platform

win10v2004-20241007-en

Max time kernel

150s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_4392a267463ca34065f7d7a946ce6361.exe"

Signatures

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Windows\Utility Mang.exe N/A

Drops file in Windows directory

Description Indicator Process Target
File created C:\Windows\Utility Mang.exe C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_4392a267463ca34065f7d7a946ce6361.exe N/A
File opened for modification C:\Windows\Utility Mang.exe C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_4392a267463ca34065f7d7a946ce6361.exe N/A
File created C:\Windows\Uer.bat C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_4392a267463ca34065f7d7a946ce6361.exe N/A

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\JaffaCakes118_4392a267463ca34065f7d7a946ce6361.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\Utility Mang.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\cmd.exe N/A

Suspicious use of FindShellTrayWindow

Description Indicator Process Target
N/A N/A C:\Windows\Utility Mang.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_4392a267463ca34065f7d7a946ce6361.exe

"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_4392a267463ca34065f7d7a946ce6361.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 2340 -ip 2340

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2340 -s 568

C:\Windows\Utility Mang.exe

"C:\Windows\Utility Mang.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 512 -p 3148 -ip 3148

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 3148 -s 544

C:\Program Files\Internet Explorer\IEXPLORE.EXE

"C:\Program Files\Internet Explorer\IEXPLORE.EXE"

C:\Windows\SysWOW64\cmd.exe

C:\Windows\system32\cmd.exe /c C:\Windows\Uer.bat

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 81.144.22.2.in-addr.arpa udp
US 8.8.8.8:53 76.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 184.115.23.2.in-addr.arpa udp
US 8.8.8.8:53 l625985028.gicp.net udp
US 8.8.8.8:53 97.17.167.52.in-addr.arpa udp
US 8.8.8.8:53 56.163.245.4.in-addr.arpa udp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
US 8.8.8.8:53 70.252.19.2.in-addr.arpa udp
US 8.8.8.8:53 73.144.22.2.in-addr.arpa udp
US 8.8.8.8:53 l625985028.gicp.net udp
US 8.8.8.8:53 19.229.111.52.in-addr.arpa udp
US 8.8.8.8:53 l625985028.gicp.net udp
US 8.8.8.8:53 84.65.42.20.in-addr.arpa udp
US 8.8.8.8:53 udp

Files

memory/2340-0-0x0000000000400000-0x00000000004E3000-memory.dmp

memory/2340-1-0x0000000002250000-0x0000000002251000-memory.dmp

memory/2340-2-0x00000000023B0000-0x00000000023B1000-memory.dmp

C:\Windows\Utility Mang.exe

MD5 4392a267463ca34065f7d7a946ce6361
SHA1 f0f35c157dba389858ec3fe3bf71769dc22f81c9
SHA256 d3a7b7b8400ecf781dcfccd1160783d198cc906e4b96906b9624d950b506b1fc
SHA512 863300a9cb3c05d0903fe461fed248168450b9c1c363d42a3d806bac42c776287d9f17d3dc5692dcfefdf476d7a66f2c4bc365ab59df190dec6d844f533e69a9

memory/3148-7-0x0000000000DF0000-0x0000000000DF1000-memory.dmp

memory/2340-10-0x0000000000400000-0x00000000004E3000-memory.dmp

C:\Windows\Uer.bat

MD5 b1cbe41d15542f7b30c4cd501f6d3f2c
SHA1 bc9932c60d777fb68795433444f716494fc3e3dd
SHA256 44abe5a681992bbc1a09c2a674df09cbed77e0493fef5db06d83731ba34f7341
SHA512 08eab59b01b6bcb4417dfe77b4d54c617e9d7d6c12d27def70dc41659c6f20f7fed3f779cfeb130bb924515c4b2418568e7e1834ba34506f52e4bdff0fa73999

memory/3148-12-0x0000000000400000-0x00000000004E3000-memory.dmp

memory/3148-13-0x0000000000DD0000-0x0000000000DD1000-memory.dmp

memory/3148-14-0x0000000000DF0000-0x0000000000DF1000-memory.dmp