Malware Analysis Report

2025-03-14 22:20

Sample ID 240407-26r9hshe63
Target e614285504a5b9553533a4e01fd36a09_JaffaCakes118
SHA256 ffebc5c5b7c5fc2a886c829df7dc6d4728879db4047b043358d773e69158662d
Tags
persistence
score
7/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
7/10

SHA256

ffebc5c5b7c5fc2a886c829df7dc6d4728879db4047b043358d773e69158662d

Threat Level: Shows suspicious behavior

The file e614285504a5b9553533a4e01fd36a09_JaffaCakes118 was found to be: Shows suspicious behavior.

Malicious Activity Summary

persistence

Loads dropped DLL

Executes dropped EXE

Adds Run key to start application

Drops file in Windows directory

Unsigned PE

Suspicious use of AdjustPrivilegeToken

Suspicious use of FindShellTrayWindow

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-04-07 23:12

Signatures

Unsigned PE

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

Analysis: behavioral2

Detonation Overview

Submitted

2024-04-07 23:11

Reported

2024-04-07 23:14

Platform

win10v2004-20240226-en

Max time kernel

134s

Max time network

145s

Command Line

"C:\Users\Admin\AppData\Local\Temp\e614285504a5b9553533a4e01fd36a09_JaffaCakes118.exe"

Signatures

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\a.exe N/A
N/A N/A C:\Windows\bbk.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\a.exe N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\RunOnce\wextract_cleanup0 = "rundll32.exe C:\\Windows\\system32\\advpack.dll,DelNodeRunDLL32 \"C:\\Users\\Admin\\AppData\\Local\\Temp\\IXP000.TMP\\\"" C:\Users\Admin\AppData\Local\Temp\e614285504a5b9553533a4e01fd36a09_JaffaCakes118.exe N/A

Drops file in Windows directory

Description Indicator Process Target
File created C:\Windows\bbk.exe C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\a.exe N/A
File opened for modification C:\Windows\bbk.exe C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\a.exe N/A
File opened for modification C:\Windows\bbk.exe C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\a.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\a.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\bbk.exe N/A
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\a.exe N/A

Suspicious use of FindShellTrayWindow

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

Processes

C:\Users\Admin\AppData\Local\Temp\e614285504a5b9553533a4e01fd36a09_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\e614285504a5b9553533a4e01fd36a09_JaffaCakes118.exe"

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\a.exe

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\a.exe

C:\Windows\bbk.exe

C:\Windows\bbk.exe

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

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

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\a.exe

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\a.exe

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe

"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=1408 --field-trial-handle=2260,i,9938964625802268469,1928462186077019554,262144 --variations-seed-version /prefetch:8

Network

Country Destination Domain Proto
US 8.8.8.8:53 28.118.140.52.in-addr.arpa udp
US 8.8.8.8:53 249.197.17.2.in-addr.arpa udp
US 8.8.8.8:53 72.32.126.40.in-addr.arpa udp
N/A 127.0.0.1:8000 tcp
US 8.8.8.8:53 13.86.106.20.in-addr.arpa udp
US 8.8.8.8:53 97.17.167.52.in-addr.arpa udp
US 8.8.8.8:53 133.211.185.52.in-addr.arpa udp
US 8.8.8.8:53 29.243.111.52.in-addr.arpa udp
US 8.8.8.8:53 26.165.165.52.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 121.118.77.104.in-addr.arpa udp
N/A 127.0.0.1:8000 tcp
US 8.8.8.8:53 chromewebstore.googleapis.com udp
US 8.8.8.8:53 chromewebstore.googleapis.com udp
DE 142.250.185.202:443 chromewebstore.googleapis.com tcp
US 8.8.8.8:53 202.185.250.142.in-addr.arpa udp
US 8.8.8.8:53 240.197.17.2.in-addr.arpa udp
N/A 127.0.0.1:8000 tcp
N/A 127.0.0.1:8000 tcp

Files

memory/4568-0-0x0000000001000000-0x00000000010A9000-memory.dmp

memory/4568-1-0x0000000001000000-0x00000000010A9000-memory.dmp

memory/4568-2-0x0000000000AA0000-0x0000000000AF4000-memory.dmp

memory/4568-4-0x0000000000460000-0x0000000000461000-memory.dmp

memory/4568-3-0x00000000030B0000-0x00000000030B3000-memory.dmp

memory/4568-5-0x0000000000450000-0x0000000000451000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\a.exe

MD5 3a29fb5eff55ab7e5e21edaed4371f65
SHA1 5c13222ec388d4b309c568758663c69dc0c6edc5
SHA256 8eca9538eae94da940b7feea20275475f235249eb6fc58195de15bac82fa88f2
SHA512 50e9df8b2fba6e978e98c3a44e4be5cf2ca0f14424d494fccf41e558be61505474a44abac73b2b822747289f524bb60573fbf509d4519b0c1fb51dece74d4cf8

memory/1812-11-0x0000000000400000-0x0000000000552000-memory.dmp

memory/1812-12-0x00000000006E0000-0x00000000006E1000-memory.dmp

memory/1812-15-0x0000000000740000-0x0000000000741000-memory.dmp

memory/3136-18-0x0000000000400000-0x0000000000552000-memory.dmp

memory/4568-19-0x0000000001000000-0x00000000010A9000-memory.dmp

memory/3136-20-0x00000000008B0000-0x00000000008B1000-memory.dmp

memory/3136-21-0x00000000008D0000-0x00000000008D1000-memory.dmp

memory/1812-22-0x0000000000400000-0x0000000000552000-memory.dmp

memory/4568-24-0x0000000000AA0000-0x0000000000AF4000-memory.dmp

memory/4548-25-0x00000000007E0000-0x00000000007E1000-memory.dmp

memory/4548-26-0x0000000000830000-0x0000000000831000-memory.dmp

memory/4548-27-0x0000000000400000-0x0000000000552000-memory.dmp

memory/4568-28-0x0000000001000000-0x00000000010A9000-memory.dmp

memory/4568-29-0x0000000000AA0000-0x0000000000AF4000-memory.dmp

memory/3136-30-0x0000000000400000-0x0000000000552000-memory.dmp

memory/3136-31-0x00000000008B0000-0x00000000008B1000-memory.dmp

memory/3136-32-0x00000000008D0000-0x00000000008D1000-memory.dmp

Analysis: behavioral1

Detonation Overview

Submitted

2024-04-07 23:11

Reported

2024-04-07 23:14

Platform

win7-20240221-en

Max time kernel

144s

Max time network

122s

Command Line

"C:\Users\Admin\AppData\Local\Temp\e614285504a5b9553533a4e01fd36a09_JaffaCakes118.exe"

Signatures

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\a.exe N/A
N/A N/A C:\Windows\bbk.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\a.exe N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\RunOnce\wextract_cleanup0 = "rundll32.exe C:\\Windows\\system32\\advpack.dll,DelNodeRunDLL32 \"C:\\Users\\Admin\\AppData\\Local\\Temp\\IXP000.TMP\\\"" C:\Users\Admin\AppData\Local\Temp\e614285504a5b9553533a4e01fd36a09_JaffaCakes118.exe N/A

Drops file in Windows directory

Description Indicator Process Target
File created C:\Windows\bbk.exe C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\a.exe N/A
File opened for modification C:\Windows\bbk.exe C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\a.exe N/A
File opened for modification C:\Windows\bbk.exe C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\a.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\a.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\bbk.exe N/A
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\a.exe N/A

Suspicious use of FindShellTrayWindow

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

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1504 wrote to memory of 2928 N/A C:\Users\Admin\AppData\Local\Temp\e614285504a5b9553533a4e01fd36a09_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\a.exe
PID 1504 wrote to memory of 2928 N/A C:\Users\Admin\AppData\Local\Temp\e614285504a5b9553533a4e01fd36a09_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\a.exe
PID 1504 wrote to memory of 2928 N/A C:\Users\Admin\AppData\Local\Temp\e614285504a5b9553533a4e01fd36a09_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\a.exe
PID 1504 wrote to memory of 2928 N/A C:\Users\Admin\AppData\Local\Temp\e614285504a5b9553533a4e01fd36a09_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\a.exe
PID 1504 wrote to memory of 2928 N/A C:\Users\Admin\AppData\Local\Temp\e614285504a5b9553533a4e01fd36a09_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\a.exe
PID 1504 wrote to memory of 2928 N/A C:\Users\Admin\AppData\Local\Temp\e614285504a5b9553533a4e01fd36a09_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\a.exe
PID 1504 wrote to memory of 2928 N/A C:\Users\Admin\AppData\Local\Temp\e614285504a5b9553533a4e01fd36a09_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\a.exe
PID 2780 wrote to memory of 2580 N/A C:\Windows\bbk.exe C:\Program Files\Internet Explorer\IEXPLORE.EXE
PID 2780 wrote to memory of 2580 N/A C:\Windows\bbk.exe C:\Program Files\Internet Explorer\IEXPLORE.EXE
PID 2780 wrote to memory of 2580 N/A C:\Windows\bbk.exe C:\Program Files\Internet Explorer\IEXPLORE.EXE
PID 2780 wrote to memory of 2580 N/A C:\Windows\bbk.exe C:\Program Files\Internet Explorer\IEXPLORE.EXE
PID 1504 wrote to memory of 2664 N/A C:\Users\Admin\AppData\Local\Temp\e614285504a5b9553533a4e01fd36a09_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\a.exe
PID 1504 wrote to memory of 2664 N/A C:\Users\Admin\AppData\Local\Temp\e614285504a5b9553533a4e01fd36a09_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\a.exe
PID 1504 wrote to memory of 2664 N/A C:\Users\Admin\AppData\Local\Temp\e614285504a5b9553533a4e01fd36a09_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\a.exe
PID 1504 wrote to memory of 2664 N/A C:\Users\Admin\AppData\Local\Temp\e614285504a5b9553533a4e01fd36a09_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\a.exe
PID 1504 wrote to memory of 2664 N/A C:\Users\Admin\AppData\Local\Temp\e614285504a5b9553533a4e01fd36a09_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\a.exe
PID 1504 wrote to memory of 2664 N/A C:\Users\Admin\AppData\Local\Temp\e614285504a5b9553533a4e01fd36a09_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\a.exe
PID 1504 wrote to memory of 2664 N/A C:\Users\Admin\AppData\Local\Temp\e614285504a5b9553533a4e01fd36a09_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\a.exe

Processes

C:\Users\Admin\AppData\Local\Temp\e614285504a5b9553533a4e01fd36a09_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\e614285504a5b9553533a4e01fd36a09_JaffaCakes118.exe"

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\a.exe

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\a.exe

C:\Windows\bbk.exe

C:\Windows\bbk.exe

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

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

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\a.exe

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\a.exe

Network

Country Destination Domain Proto
N/A 127.0.0.1:8000 tcp
N/A 127.0.0.1:8000 tcp
N/A 127.0.0.1:8000 tcp
N/A 127.0.0.1:8000 tcp

Files

memory/1504-1-0x0000000000750000-0x00000000007F9000-memory.dmp

memory/1504-0-0x0000000001000000-0x00000000010A9000-memory.dmp

memory/1504-4-0x0000000003260000-0x0000000003263000-memory.dmp

memory/1504-3-0x0000000001000000-0x00000000010A9000-memory.dmp

memory/1504-2-0x00000000003C0000-0x0000000000414000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\a.exe

MD5 3a29fb5eff55ab7e5e21edaed4371f65
SHA1 5c13222ec388d4b309c568758663c69dc0c6edc5
SHA256 8eca9538eae94da940b7feea20275475f235249eb6fc58195de15bac82fa88f2
SHA512 50e9df8b2fba6e978e98c3a44e4be5cf2ca0f14424d494fccf41e558be61505474a44abac73b2b822747289f524bb60573fbf509d4519b0c1fb51dece74d4cf8

memory/2928-17-0x0000000000B80000-0x0000000000CD2000-memory.dmp

memory/1504-13-0x0000000004020000-0x0000000004172000-memory.dmp

memory/2928-18-0x0000000000400000-0x0000000000552000-memory.dmp

memory/2780-22-0x0000000000400000-0x0000000000552000-memory.dmp

memory/2780-23-0x0000000000240000-0x0000000000241000-memory.dmp

memory/2928-25-0x0000000000400000-0x0000000000552000-memory.dmp

memory/2664-31-0x0000000000400000-0x0000000000552000-memory.dmp

memory/1504-28-0x0000000001000000-0x00000000010A9000-memory.dmp

memory/2664-32-0x0000000000400000-0x0000000000552000-memory.dmp

memory/2664-34-0x0000000000D50000-0x0000000000EA2000-memory.dmp

memory/1504-33-0x00000000003C0000-0x0000000000414000-memory.dmp

memory/2664-35-0x0000000000400000-0x0000000000552000-memory.dmp

memory/1504-36-0x0000000001000000-0x00000000010A9000-memory.dmp

memory/1504-37-0x00000000003C0000-0x0000000000414000-memory.dmp

memory/2780-38-0x0000000000400000-0x0000000000552000-memory.dmp

memory/2780-39-0x0000000000240000-0x0000000000241000-memory.dmp