Malware Analysis Report

2024-11-13 14:01

Sample ID 240407-2xqz4ahb94
Target e60d29848b8f60da29efbc0efb820022_JaffaCakes118
SHA256 5910523dd84c592fdf140cba6c8e0272504ef03ddbe93290a4009c1f31f18532
Tags
upx persistence spyware stealer
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

5910523dd84c592fdf140cba6c8e0272504ef03ddbe93290a4009c1f31f18532

Threat Level: Shows suspicious behavior

The file e60d29848b8f60da29efbc0efb820022_JaffaCakes118 was found to be: Shows suspicious behavior.

Malicious Activity Summary

upx persistence spyware stealer

Executes dropped EXE

Loads dropped DLL

Reads user/profile data of web browsers

UPX packed file

Adds Run key to start application

Drops file in Windows directory

Unsigned PE

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-04-07 22:57

Signatures

UPX packed file

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

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-04-07 22:57

Reported

2024-04-07 23:00

Platform

win7-20240215-en

Max time kernel

140s

Max time network

125s

Command Line

"C:\Users\Admin\AppData\Local\Temp\e60d29848b8f60da29efbc0efb820022_JaffaCakes118.exe"

Signatures

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\75W8dfn4VfCrHfz.exe N/A
N/A N/A C:\Windows\CTS.exe N/A

Reads user/profile data of web browsers

spyware stealer

UPX packed file

upx
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
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\CTS = "C:\\Windows\\CTS.exe" C:\Users\Admin\AppData\Local\Temp\e60d29848b8f60da29efbc0efb820022_JaffaCakes118.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\CTS = "C:\\Windows\\CTS.exe" C:\Windows\CTS.exe N/A

Drops file in Windows directory

Description Indicator Process Target
File created C:\Windows\CTS.exe C:\Users\Admin\AppData\Local\Temp\e60d29848b8f60da29efbc0efb820022_JaffaCakes118.exe N/A
File created C:\Windows\CTS.exe C:\Windows\CTS.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\e60d29848b8f60da29efbc0efb820022_JaffaCakes118.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\CTS.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\e60d29848b8f60da29efbc0efb820022_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\e60d29848b8f60da29efbc0efb820022_JaffaCakes118.exe"

C:\Users\Admin\AppData\Local\Temp\75W8dfn4VfCrHfz.exe

C:\Users\Admin\AppData\Local\Temp\75W8dfn4VfCrHfz.exe

C:\Windows\CTS.exe

"C:\Windows\CTS.exe"

Network

N/A

Files

memory/2916-8-0x0000000000120000-0x0000000000137000-memory.dmp

\Users\Admin\AppData\Local\Temp\75W8dfn4VfCrHfz.exe

MD5 95c9a037d3b01a21275aa6cc73b122a2
SHA1 c19ed8afc95b91d0cc6bc075047de30eae015386
SHA256 1d5edcbae3258efb07cc57ba8d7cd1ebe2eb5106ef1a894b787ed2857952c523
SHA512 761bb76261712a597f610e3162fa1514d2f56d69d03d1b76b51c6b2a7b0c88bbd385b7dc849c6913f7d861fb3aed8551f26f640d90b621e8629abe2e4bfb6160

C:\Windows\CTS.exe

MD5 70aa23c9229741a9b52e5ce388a883ac
SHA1 b42683e21e13de3f71db26635954d992ebe7119e
SHA256 9d25cc704b1c00c9d17903e25ca35c319663e997cb9da0b116790b639e9688f2
SHA512 be604a2ad5ab8a3e5edb8901016a76042ba873c8d05b4ef8eec31241377ec6b2a883b51c6912dc7640581ffa624547db334683975883ae74e62808b5ae9ab0b5

memory/2916-14-0x0000000000120000-0x0000000000137000-memory.dmp

memory/2916-10-0x00000000000E0000-0x00000000000F7000-memory.dmp

memory/2536-18-0x0000000000D60000-0x0000000000D77000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\75W8dfn4VfCrHfz.exe

MD5 0fb809c0a6595defa6e0bd36905751c4
SHA1 10645f9ffa4a02fd29100ec595ca2aa8a52de44f
SHA256 c0c72e7b4ef3ec29e2a9708e67b9536ec1a4eb5c45354a12a6e7788b69804f93
SHA512 aebb5b895cf697e3b62355fe8c7964e48954f0f5c644a03a8a2b0511109f0ee08aa63b8152a6f41b068175ed2016a8f858c5cf34bdaa6e475795511fe0e9fca9

memory/2916-25-0x00000000000E0000-0x00000000000F7000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-04-07 22:57

Reported

2024-04-07 23:00

Platform

win10v2004-20240319-en

Max time kernel

147s

Max time network

153s

Command Line

"C:\Users\Admin\AppData\Local\Temp\e60d29848b8f60da29efbc0efb820022_JaffaCakes118.exe"

Signatures

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\ikaBxzHGs2S0COq.exe N/A
N/A N/A C:\Windows\CTS.exe N/A

Reads user/profile data of web browsers

spyware stealer

UPX packed file

upx
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
N/A N/A N/A N/A
N/A N/A N/A N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\CTS = "C:\\Windows\\CTS.exe" C:\Users\Admin\AppData\Local\Temp\e60d29848b8f60da29efbc0efb820022_JaffaCakes118.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\CTS = "C:\\Windows\\CTS.exe" C:\Windows\CTS.exe N/A

Drops file in Windows directory

Description Indicator Process Target
File created C:\Windows\CTS.exe C:\Users\Admin\AppData\Local\Temp\e60d29848b8f60da29efbc0efb820022_JaffaCakes118.exe N/A
File created C:\Windows\CTS.exe C:\Windows\CTS.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\e60d29848b8f60da29efbc0efb820022_JaffaCakes118.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\CTS.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\e60d29848b8f60da29efbc0efb820022_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\e60d29848b8f60da29efbc0efb820022_JaffaCakes118.exe"

C:\Users\Admin\AppData\Local\Temp\ikaBxzHGs2S0COq.exe

C:\Users\Admin\AppData\Local\Temp\ikaBxzHGs2S0COq.exe

C:\Windows\CTS.exe

"C:\Windows\CTS.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=3488 --field-trial-handle=2808,i,4621512294509789388,1545966267740426092,262144 --variations-seed-version /prefetch:8

Network

Country Destination Domain Proto
US 13.107.246.64:443 tcp
US 8.8.8.8:53 20.160.190.20.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 9.228.82.20.in-addr.arpa udp
US 8.8.8.8:53 196.249.167.52.in-addr.arpa udp
US 8.8.8.8:53 21.114.53.23.in-addr.arpa udp
US 8.8.8.8:53 43.58.199.20.in-addr.arpa udp
US 8.8.8.8:53 97.17.167.52.in-addr.arpa udp
US 8.8.8.8:53 183.59.114.20.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 130.118.77.104.in-addr.arpa udp
US 13.107.246.64:443 tcp
US 8.8.8.8:53 98.56.20.217.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 200.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 23.173.189.20.in-addr.arpa udp

Files

memory/2152-0-0x0000000000A00000-0x0000000000A17000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\ikaBxzHGs2S0COq.exe

MD5 95c9a037d3b01a21275aa6cc73b122a2
SHA1 c19ed8afc95b91d0cc6bc075047de30eae015386
SHA256 1d5edcbae3258efb07cc57ba8d7cd1ebe2eb5106ef1a894b787ed2857952c523
SHA512 761bb76261712a597f610e3162fa1514d2f56d69d03d1b76b51c6b2a7b0c88bbd385b7dc849c6913f7d861fb3aed8551f26f640d90b621e8629abe2e4bfb6160

C:\Windows\CTS.exe

MD5 70aa23c9229741a9b52e5ce388a883ac
SHA1 b42683e21e13de3f71db26635954d992ebe7119e
SHA256 9d25cc704b1c00c9d17903e25ca35c319663e997cb9da0b116790b639e9688f2
SHA512 be604a2ad5ab8a3e5edb8901016a76042ba873c8d05b4ef8eec31241377ec6b2a883b51c6912dc7640581ffa624547db334683975883ae74e62808b5ae9ab0b5

memory/2152-6-0x0000000000A00000-0x0000000000A17000-memory.dmp

memory/1296-9-0x0000000000F40000-0x0000000000F57000-memory.dmp

C:\Users\Admin\AppData\Local\Microsoft\Office\16.0\msoia.exe_Rules.xml

MD5 a08693a899cc9715f808fe3d5490d800
SHA1 af9b610b342b5988aff49b9867ff7a18507055d6
SHA256 4dc968d37d60bf73390a02cf7551642cd5e182989c9d19965e16ad04ace742d1
SHA512 34d29105af30dd5460d9e9560b434607dfb0026a961430d4f0ef1a64865b12f6c16e30bb9112f37900ffb5a2f6bd724d15781b2f37404e238b632d2dbb5938da