Malware Analysis Report

2025-08-10 23:54

Sample ID 240517-vbraeahc24
Target 507d7183c6cac4f710285c3b0df81f25_JaffaCakes118
SHA256 b7b278f28e0760b520f5807dc8f33b554955ac2a9566d44bf79818dd70ae388d
Tags
collection 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

b7b278f28e0760b520f5807dc8f33b554955ac2a9566d44bf79818dd70ae388d

Threat Level: Shows suspicious behavior

The file 507d7183c6cac4f710285c3b0df81f25_JaffaCakes118 was found to be: Shows suspicious behavior.

Malicious Activity Summary

collection spyware stealer

Reads user/profile data of web browsers

Reads user/profile data of local email clients

Looks up external IP address via web service

Accesses Microsoft Outlook profiles

Suspicious use of SetThreadContext

Unsigned PE

outlook_office_path

Suspicious use of SetWindowsHookEx

outlook_win_path

Suspicious behavior: EnumeratesProcesses

Suspicious behavior: RenamesItself

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-05-17 16:49

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-05-17 16:49

Reported

2024-05-17 16:51

Platform

win7-20240221-en

Max time kernel

118s

Max time network

119s

Command Line

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

Signatures

Reads user/profile data of local email clients

spyware stealer

Reads user/profile data of web browsers

spyware stealer

Accesses Microsoft Outlook profiles

collection
Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Users\Admin\AppData\Local\Temp\okkkkkkkk.exe N/A
Key opened \REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Users\Admin\AppData\Local\Temp\okkkkkkkk.exe N/A
Key opened \REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Users\Admin\AppData\Local\Temp\okkkkkkkk.exe N/A

Looks up external IP address via web service

Description Indicator Process Target
N/A checkip.dyndns.org N/A N/A

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 2784 set thread context of 3064 N/A C:\Users\Admin\AppData\Local\Temp\okkkkkkkk.exe C:\Users\Admin\AppData\Local\Temp\okkkkkkkk.exe

Suspicious behavior: EnumeratesProcesses

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

Suspicious behavior: RenamesItself

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

Suspicious use of AdjustPrivilegeToken

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

Suspicious use of SetWindowsHookEx

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

outlook_office_path

Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Users\Admin\AppData\Local\Temp\okkkkkkkk.exe N/A

outlook_win_path

Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Users\Admin\AppData\Local\Temp\okkkkkkkk.exe N/A

Processes

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

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

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

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

Network

Country Destination Domain Proto
US 8.8.8.8:53 checkip.dyndns.org udp
DE 193.122.6.168:80 checkip.dyndns.org tcp

Files

memory/2784-0-0x0000000074B21000-0x0000000074B22000-memory.dmp

memory/2784-1-0x0000000074B20000-0x00000000750CB000-memory.dmp

memory/2784-2-0x0000000074B20000-0x00000000750CB000-memory.dmp

memory/2784-3-0x0000000074B20000-0x00000000750CB000-memory.dmp

memory/3064-4-0x0000000000400000-0x0000000000436000-memory.dmp

memory/3064-14-0x0000000000400000-0x0000000000436000-memory.dmp

memory/3064-18-0x0000000000400000-0x0000000000436000-memory.dmp

memory/3064-16-0x0000000000400000-0x0000000000436000-memory.dmp

memory/3064-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

memory/3064-10-0x0000000000400000-0x0000000000436000-memory.dmp

memory/3064-8-0x0000000000400000-0x0000000000436000-memory.dmp

memory/3064-6-0x0000000000400000-0x0000000000436000-memory.dmp

memory/3064-22-0x0000000074B20000-0x00000000750CB000-memory.dmp

memory/3064-21-0x0000000074B20000-0x00000000750CB000-memory.dmp

memory/2784-20-0x0000000074B20000-0x00000000750CB000-memory.dmp

memory/3064-19-0x0000000074B20000-0x00000000750CB000-memory.dmp

memory/3064-23-0x0000000074B20000-0x00000000750CB000-memory.dmp

memory/3064-24-0x0000000074B20000-0x00000000750CB000-memory.dmp

memory/3064-25-0x0000000074B20000-0x00000000750CB000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-05-17 16:49

Reported

2024-05-17 16:51

Platform

win10v2004-20240426-en

Max time kernel

137s

Max time network

126s

Command Line

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

Signatures

Reads user/profile data of local email clients

spyware stealer

Reads user/profile data of web browsers

spyware stealer

Accesses Microsoft Outlook profiles

collection
Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-4018855536-2201274732-320770143-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Users\Admin\AppData\Local\Temp\okkkkkkkk.exe N/A
Key opened \REGISTRY\USER\S-1-5-21-4018855536-2201274732-320770143-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Users\Admin\AppData\Local\Temp\okkkkkkkk.exe N/A
Key opened \REGISTRY\USER\S-1-5-21-4018855536-2201274732-320770143-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Users\Admin\AppData\Local\Temp\okkkkkkkk.exe N/A

Looks up external IP address via web service

Description Indicator Process Target
N/A checkip.dyndns.org N/A N/A

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 3288 set thread context of 3544 N/A C:\Users\Admin\AppData\Local\Temp\okkkkkkkk.exe C:\Users\Admin\AppData\Local\Temp\okkkkkkkk.exe

Suspicious behavior: EnumeratesProcesses

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

Suspicious behavior: RenamesItself

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

Suspicious use of AdjustPrivilegeToken

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

Suspicious use of SetWindowsHookEx

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

outlook_office_path

Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-4018855536-2201274732-320770143-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Users\Admin\AppData\Local\Temp\okkkkkkkk.exe N/A

outlook_win_path

Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-4018855536-2201274732-320770143-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Users\Admin\AppData\Local\Temp\okkkkkkkk.exe N/A

Processes

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

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

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

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

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 g.bing.com udp
US 204.79.197.237:443 g.bing.com tcp
NL 23.62.61.194:443 www.bing.com tcp
US 8.8.8.8:53 18.24.18.2.in-addr.arpa udp
US 8.8.8.8:53 237.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 194.61.62.23.in-addr.arpa udp
US 8.8.8.8:53 22.160.190.20.in-addr.arpa udp
US 8.8.8.8:53 checkip.dyndns.org udp
US 158.101.44.242:80 checkip.dyndns.org tcp
NL 23.62.61.89:443 www.bing.com tcp
US 8.8.8.8:53 242.44.101.158.in-addr.arpa udp
US 8.8.8.8:53 89.61.62.23.in-addr.arpa udp
US 8.8.8.8:53 196.249.167.52.in-addr.arpa udp
US 8.8.8.8:53 154.239.44.20.in-addr.arpa udp
US 8.8.8.8:53 103.169.127.40.in-addr.arpa udp
US 8.8.8.8:53 56.126.166.20.in-addr.arpa udp
US 8.8.8.8:53 0.204.248.87.in-addr.arpa udp
US 8.8.8.8:53 205.47.74.20.in-addr.arpa udp
US 8.8.8.8:53 11.227.111.52.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 204.79.197.200:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 200.197.79.204.in-addr.arpa udp

Files

memory/3288-0-0x0000000074772000-0x0000000074773000-memory.dmp

memory/3288-1-0x0000000074770000-0x0000000074D21000-memory.dmp

memory/3288-2-0x0000000074770000-0x0000000074D21000-memory.dmp

memory/3544-3-0x0000000000400000-0x0000000000436000-memory.dmp

memory/3544-7-0x0000000074770000-0x0000000074D21000-memory.dmp

memory/3288-6-0x0000000074770000-0x0000000074D21000-memory.dmp

C:\Users\Admin\AppData\Local\Microsoft\CLR_v2.0_32\UsageLogs\okkkkkkkk.exe.log

MD5 00b72ea3d569eb0d4fb85691b642f47c
SHA1 f9134a33706eb76ddb00e5276639d660a071da9b
SHA256 cd62d4fbf8b135be5c0b8448a7d53db7784869761a10ec99473f58f44d8e686c
SHA512 62af7608834d84fa95470247cab4bfa5a382825f81e9918b762e62dfc6c467e7b50cfb5b2fd36eff1da320e22aa8c1427c02820e06d9f2f6483e64740a43e8df

memory/3544-8-0x0000000074770000-0x0000000074D21000-memory.dmp

memory/3544-9-0x0000000074770000-0x0000000074D21000-memory.dmp

memory/3544-10-0x0000000074770000-0x0000000074D21000-memory.dmp

memory/3544-11-0x0000000074770000-0x0000000074D21000-memory.dmp