Malware Analysis Report

2025-01-18 01:11

Sample ID 240613-hcbj5a1hmj
Target a43ad61444e57136b15046b5c731fde9_JaffaCakes118
SHA256 75f50f1d69302a02bae7ee9c9e1b2afa237200affda8b62a7f840cdd596b6e86
Tags
score
8/10

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
8/10

SHA256

75f50f1d69302a02bae7ee9c9e1b2afa237200affda8b62a7f840cdd596b6e86

Threat Level: Likely malicious

The file a43ad61444e57136b15046b5c731fde9_JaffaCakes118 was found to be: Likely malicious.

Malicious Activity Summary


Downloads MZ/PE file

Loads dropped DLL

Executes dropped EXE

Enumerates physical storage devices

Unsigned PE

Suspicious behavior: EnumeratesProcesses

Suspicious behavior: GetForegroundWindowSpam

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-13 06:35

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-13 06:35

Reported

2024-06-13 06:37

Platform

win7-20240221-en

Max time kernel

140s

Max time network

122s

Command Line

"C:\Users\Admin\AppData\Local\Temp\a43ad61444e57136b15046b5c731fde9_JaffaCakes118.exe"

Signatures

Downloads MZ/PE file

Enumerates physical storage devices

Suspicious behavior: GetForegroundWindowSpam

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\is-NDBE4.tmp\a43ad61444e57136b15046b5c731fde9_JaffaCakes118.tmp N/A

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\is-4RRHG.tmp\rkverify.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\is-4RRHG.tmp\rkverify.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2420 wrote to memory of 2140 N/A C:\Users\Admin\AppData\Local\Temp\a43ad61444e57136b15046b5c731fde9_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\is-NDBE4.tmp\a43ad61444e57136b15046b5c731fde9_JaffaCakes118.tmp
PID 2420 wrote to memory of 2140 N/A C:\Users\Admin\AppData\Local\Temp\a43ad61444e57136b15046b5c731fde9_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\is-NDBE4.tmp\a43ad61444e57136b15046b5c731fde9_JaffaCakes118.tmp
PID 2420 wrote to memory of 2140 N/A C:\Users\Admin\AppData\Local\Temp\a43ad61444e57136b15046b5c731fde9_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\is-NDBE4.tmp\a43ad61444e57136b15046b5c731fde9_JaffaCakes118.tmp
PID 2420 wrote to memory of 2140 N/A C:\Users\Admin\AppData\Local\Temp\a43ad61444e57136b15046b5c731fde9_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\is-NDBE4.tmp\a43ad61444e57136b15046b5c731fde9_JaffaCakes118.tmp
PID 2420 wrote to memory of 2140 N/A C:\Users\Admin\AppData\Local\Temp\a43ad61444e57136b15046b5c731fde9_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\is-NDBE4.tmp\a43ad61444e57136b15046b5c731fde9_JaffaCakes118.tmp
PID 2420 wrote to memory of 2140 N/A C:\Users\Admin\AppData\Local\Temp\a43ad61444e57136b15046b5c731fde9_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\is-NDBE4.tmp\a43ad61444e57136b15046b5c731fde9_JaffaCakes118.tmp
PID 2420 wrote to memory of 2140 N/A C:\Users\Admin\AppData\Local\Temp\a43ad61444e57136b15046b5c731fde9_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\is-NDBE4.tmp\a43ad61444e57136b15046b5c731fde9_JaffaCakes118.tmp
PID 2140 wrote to memory of 2896 N/A C:\Users\Admin\AppData\Local\Temp\is-NDBE4.tmp\a43ad61444e57136b15046b5c731fde9_JaffaCakes118.tmp C:\Users\Admin\AppData\Local\Temp\is-4RRHG.tmp\rkverify.exe
PID 2140 wrote to memory of 2896 N/A C:\Users\Admin\AppData\Local\Temp\is-NDBE4.tmp\a43ad61444e57136b15046b5c731fde9_JaffaCakes118.tmp C:\Users\Admin\AppData\Local\Temp\is-4RRHG.tmp\rkverify.exe
PID 2140 wrote to memory of 2896 N/A C:\Users\Admin\AppData\Local\Temp\is-NDBE4.tmp\a43ad61444e57136b15046b5c731fde9_JaffaCakes118.tmp C:\Users\Admin\AppData\Local\Temp\is-4RRHG.tmp\rkverify.exe
PID 2140 wrote to memory of 2896 N/A C:\Users\Admin\AppData\Local\Temp\is-NDBE4.tmp\a43ad61444e57136b15046b5c731fde9_JaffaCakes118.tmp C:\Users\Admin\AppData\Local\Temp\is-4RRHG.tmp\rkverify.exe

Processes

C:\Users\Admin\AppData\Local\Temp\a43ad61444e57136b15046b5c731fde9_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\a43ad61444e57136b15046b5c731fde9_JaffaCakes118.exe"

C:\Users\Admin\AppData\Local\Temp\is-NDBE4.tmp\a43ad61444e57136b15046b5c731fde9_JaffaCakes118.tmp

"C:\Users\Admin\AppData\Local\Temp\is-NDBE4.tmp\a43ad61444e57136b15046b5c731fde9_JaffaCakes118.tmp" /SL5="$30138,11231145,55296,C:\Users\Admin\AppData\Local\Temp\a43ad61444e57136b15046b5c731fde9_JaffaCakes118.exe"

C:\Users\Admin\AppData\Local\Temp\is-4RRHG.tmp\rkverify.exe

"C:\Users\Admin\AppData\Local\Temp\is-4RRHG.tmp\rkverify.exe"

C:\Windows\system32\wbem\unsecapp.exe

C:\Windows\system32\wbem\unsecapp.exe -Embedding

Network

Country Destination Domain Proto
US 8.8.8.8:53 post.securestudies.com udp
US 165.193.78.234:80 post.securestudies.com tcp
US 165.193.78.234:80 post.securestudies.com tcp

Files

memory/2420-0-0x0000000000400000-0x0000000000414000-memory.dmp

memory/2420-2-0x0000000000401000-0x000000000040B000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\is-NDBE4.tmp\a43ad61444e57136b15046b5c731fde9_JaffaCakes118.tmp

MD5 a2205490990f76f9a5fd985d96c5bdbc
SHA1 25493c0a75a89ddce3b948314dc3aa3eec2bb7f2
SHA256 74636b6b7bd44ac2a239c89887376e6cc3841f571153fda124af966b1e29f00e
SHA512 ca90f3acd3613a2956b1d57d400b11fb64e8c50a253a26d9e2c30bafe460734b351834153bd0f081490a8f769345b7226db490e99fbfa087b7a300b6bf802fe2

memory/2140-8-0x0000000000400000-0x00000000004BD000-memory.dmp

\Users\Admin\AppData\Local\Temp\is-4RRHG.tmp\_isetup\_shfoldr.dll

MD5 92dc6ef532fbb4a5c3201469a5b5eb63
SHA1 3e89ff837147c16b4e41c30d6c796374e0b8e62c
SHA256 9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87
SHA512 9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3

\Users\Admin\AppData\Local\Temp\is-4RRHG.tmp\itdownload.dll

MD5 d82a429efd885ca0f324dd92afb6b7b8
SHA1 86bbdaa15e6fc5c7779ac69c84e53c43c9eb20ea
SHA256 b258c4d7d2113dee2168ed7e35568c8e03341e24e3eafc7a22a0d62e32122ef3
SHA512 5bf0c3b8fa5db63205a263c4fa5337188173248bef609ba4d03508c50db1fd1e336f3041ce96d78cc97659357a83e6e422f5b079d893a20a683270e05f5438df

memory/2140-17-0x00000000008C0000-0x00000000008FC000-memory.dmp

memory/2420-20-0x0000000000400000-0x0000000000414000-memory.dmp

memory/2140-22-0x00000000008C0000-0x00000000008FC000-memory.dmp

memory/2140-21-0x0000000000400000-0x00000000004BD000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\is-4RRHG.tmp\rkverify.exe

MD5 11033fe49e144984b82ae16ce1221cd0
SHA1 5cafb0702e89b7a0982e33e8a5c5d52d0e17a1c2
SHA256 1fb9cb60b11165df3298dee55b59517e3ed15957b820b19b4ca0d8f9f2e20173
SHA512 7eda789c95f11dea47189a6240fc791450fdf2496d26062824eb1d55581bbe8ed887a16c4e274f1ef86b8de27a582d39074e22f98129606f8e1a0300480a0bca

\Users\Admin\AppData\Local\Temp\CSM4460.tmp

MD5 3e7321e4314d8ed97fddc3836c7fc63a
SHA1 b492e083afd5954bd93e99e9e7a93c08f73f170d
SHA256 1f81642142309f06861053f2e07e7457a09b5d433bf9fb8f5b5a892ec2fd2d38
SHA512 4be51bc64f373014707310f69f427652b45c916f26ec10e2d4f5c5a9694584e4ea8ce637d15e3cc42289a67515e3641fd99025bc8aa11dd0bfcab321863cf0b9

memory/2140-40-0x0000000000400000-0x00000000004BD000-memory.dmp

memory/2140-43-0x00000000008C0000-0x00000000008FC000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-13 06:35

Reported

2024-06-13 06:37

Platform

win10v2004-20240508-en

Max time kernel

147s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\a43ad61444e57136b15046b5c731fde9_JaffaCakes118.exe"

Signatures

Processes

C:\Users\Admin\AppData\Local\Temp\a43ad61444e57136b15046b5c731fde9_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\a43ad61444e57136b15046b5c731fde9_JaffaCakes118.exe"

C:\Users\Admin\AppData\Local\Temp\is-R8QN8.tmp\a43ad61444e57136b15046b5c731fde9_JaffaCakes118.tmp

"C:\Users\Admin\AppData\Local\Temp\is-R8QN8.tmp\a43ad61444e57136b15046b5c731fde9_JaffaCakes118.tmp" /SL5="$60196,11231145,55296,C:\Users\Admin\AppData\Local\Temp\a43ad61444e57136b15046b5c731fde9_JaffaCakes118.exe"

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 post.securestudies.com udp
US 8.8.8.8:53 post.securestudies.com udp
US 8.8.8.8:53 rkverify.securestudies.com udp
US 8.8.8.8:53 rkverify.securestudies.com udp

Files

memory/4576-0-0x0000000000400000-0x0000000000414000-memory.dmp

memory/4576-2-0x0000000000401000-0x000000000040B000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\is-R8QN8.tmp\a43ad61444e57136b15046b5c731fde9_JaffaCakes118.tmp

MD5 a2205490990f76f9a5fd985d96c5bdbc
SHA1 25493c0a75a89ddce3b948314dc3aa3eec2bb7f2
SHA256 74636b6b7bd44ac2a239c89887376e6cc3841f571153fda124af966b1e29f00e
SHA512 ca90f3acd3613a2956b1d57d400b11fb64e8c50a253a26d9e2c30bafe460734b351834153bd0f081490a8f769345b7226db490e99fbfa087b7a300b6bf802fe2

memory/1984-6-0x0000000000400000-0x00000000004BD000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\is-OTN6M.tmp\itdownload.dll

MD5 d82a429efd885ca0f324dd92afb6b7b8
SHA1 86bbdaa15e6fc5c7779ac69c84e53c43c9eb20ea
SHA256 b258c4d7d2113dee2168ed7e35568c8e03341e24e3eafc7a22a0d62e32122ef3
SHA512 5bf0c3b8fa5db63205a263c4fa5337188173248bef609ba4d03508c50db1fd1e336f3041ce96d78cc97659357a83e6e422f5b079d893a20a683270e05f5438df

memory/1984-15-0x0000000003130000-0x000000000316C000-memory.dmp

memory/4576-17-0x0000000000400000-0x0000000000414000-memory.dmp

memory/1984-18-0x0000000000400000-0x00000000004BD000-memory.dmp

memory/1984-19-0x0000000003130000-0x000000000316C000-memory.dmp

memory/1984-28-0x0000000003130000-0x000000000316C000-memory.dmp

memory/1984-30-0x0000000000400000-0x00000000004BD000-memory.dmp

memory/1984-31-0x0000000003130000-0x000000000316C000-memory.dmp