Analysis
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max time kernel
136s -
max time network
148s -
platform
windows10-2004_x64 -
resource
win10v2004-20240508-en -
resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system -
submitted
21-05-2024 05:07
Static task
static1
Behavioral task
behavioral1
Sample
6220dbc17e6c4579e23a93c103344d04_JaffaCakes118.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
6220dbc17e6c4579e23a93c103344d04_JaffaCakes118.exe
Resource
win10v2004-20240508-en
General
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Target
6220dbc17e6c4579e23a93c103344d04_JaffaCakes118.exe
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Size
1.0MB
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MD5
6220dbc17e6c4579e23a93c103344d04
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SHA1
78e9640d470745acfb2648d56e35febc30f6e684
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SHA256
154c3a1d1e1a4213c0dbd5d4d21f983219626f5ed2eb824f3670394e6555c162
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SHA512
5c4fd1ea005b890debb0d5635073a45a5ec2a640a133b53b1dac8c554765b3f96c69fbbae619a6e8c12ee46079895e42b4bf79ec8c4b0f09ee12d377441bc583
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SSDEEP
12288:0P+xop6MOkLy2L+J1cvFoTlGlWVp7dBhR82vkLnfOOim:jopEkO2m6vFoTEUi2vk1i
Malware Config
Extracted
Protocol: smtp- Host:
smtp.yandex.com - Port:
587 - Username:
[email protected] - Password:
myrecords1248
Signatures
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NirSoft MailPassView 4 IoCs
Password recovery tool for various email clients
resource yara_rule behavioral2/memory/4316-9-0x0000000000420000-0x00000000004A4000-memory.dmp MailPassView behavioral2/memory/1036-22-0x0000000000400000-0x000000000041B000-memory.dmp MailPassView behavioral2/memory/1036-24-0x0000000000400000-0x000000000041B000-memory.dmp MailPassView behavioral2/memory/1036-26-0x0000000000400000-0x000000000041B000-memory.dmp MailPassView -
NirSoft WebBrowserPassView 5 IoCs
Password recovery tool for various web browsers
resource yara_rule behavioral2/memory/4316-9-0x0000000000420000-0x00000000004A4000-memory.dmp WebBrowserPassView behavioral2/memory/4048-28-0x0000000000400000-0x0000000000458000-memory.dmp WebBrowserPassView behavioral2/memory/4048-30-0x0000000000400000-0x0000000000458000-memory.dmp WebBrowserPassView behavioral2/memory/4048-31-0x0000000000400000-0x0000000000458000-memory.dmp WebBrowserPassView behavioral2/memory/4048-39-0x0000000000400000-0x0000000000458000-memory.dmp WebBrowserPassView -
Nirsoft 8 IoCs
resource yara_rule behavioral2/memory/4316-9-0x0000000000420000-0x00000000004A4000-memory.dmp Nirsoft behavioral2/memory/1036-22-0x0000000000400000-0x000000000041B000-memory.dmp Nirsoft behavioral2/memory/1036-24-0x0000000000400000-0x000000000041B000-memory.dmp Nirsoft behavioral2/memory/1036-26-0x0000000000400000-0x000000000041B000-memory.dmp Nirsoft behavioral2/memory/4048-28-0x0000000000400000-0x0000000000458000-memory.dmp Nirsoft behavioral2/memory/4048-30-0x0000000000400000-0x0000000000458000-memory.dmp Nirsoft behavioral2/memory/4048-31-0x0000000000400000-0x0000000000458000-memory.dmp Nirsoft behavioral2/memory/4048-39-0x0000000000400000-0x0000000000458000-memory.dmp Nirsoft -
Obfuscated with Agile.Net obfuscator 1 IoCs
Detects use of the Agile.Net commercial obfuscator, which is capable of entity renaming and control flow obfuscation.
resource yara_rule behavioral2/memory/2280-2-0x00000000058B0000-0x00000000058D8000-memory.dmp agile_net -
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Uses the VBS compiler for execution 1 TTPs
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Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\Software\Microsoft\Office\Outlook\OMI Account Manager\Accounts vbc.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Windows Update = "C:\\Users\\Admin\\AppData\\Roaming\\WindowsUpdate.exe" RegAsm.exe -
Looks up external IP address via web service 2 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
flow ioc 49 whatismyipaddress.com 47 whatismyipaddress.com -
Suspicious use of SetThreadContext 3 IoCs
description pid Process procid_target PID 2280 set thread context of 4316 2280 6220dbc17e6c4579e23a93c103344d04_JaffaCakes118.exe 97 PID 4316 set thread context of 1036 4316 RegAsm.exe 100 PID 4316 set thread context of 4048 4316 RegAsm.exe 101 -
Suspicious behavior: EnumeratesProcesses 3 IoCs
pid Process 4316 RegAsm.exe 4048 vbc.exe 4048 vbc.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 2280 6220dbc17e6c4579e23a93c103344d04_JaffaCakes118.exe Token: SeDebugPrivilege 4316 RegAsm.exe -
Suspicious use of WriteProcessMemory 26 IoCs
description pid Process procid_target PID 2280 wrote to memory of 4316 2280 6220dbc17e6c4579e23a93c103344d04_JaffaCakes118.exe 97 PID 2280 wrote to memory of 4316 2280 6220dbc17e6c4579e23a93c103344d04_JaffaCakes118.exe 97 PID 2280 wrote to memory of 4316 2280 6220dbc17e6c4579e23a93c103344d04_JaffaCakes118.exe 97 PID 2280 wrote to memory of 4316 2280 6220dbc17e6c4579e23a93c103344d04_JaffaCakes118.exe 97 PID 2280 wrote to memory of 4316 2280 6220dbc17e6c4579e23a93c103344d04_JaffaCakes118.exe 97 PID 2280 wrote to memory of 4316 2280 6220dbc17e6c4579e23a93c103344d04_JaffaCakes118.exe 97 PID 2280 wrote to memory of 4316 2280 6220dbc17e6c4579e23a93c103344d04_JaffaCakes118.exe 97 PID 2280 wrote to memory of 4316 2280 6220dbc17e6c4579e23a93c103344d04_JaffaCakes118.exe 97 PID 4316 wrote to memory of 1036 4316 RegAsm.exe 100 PID 4316 wrote to memory of 1036 4316 RegAsm.exe 100 PID 4316 wrote to memory of 1036 4316 RegAsm.exe 100 PID 4316 wrote to memory of 1036 4316 RegAsm.exe 100 PID 4316 wrote to memory of 1036 4316 RegAsm.exe 100 PID 4316 wrote to memory of 1036 4316 RegAsm.exe 100 PID 4316 wrote to memory of 1036 4316 RegAsm.exe 100 PID 4316 wrote to memory of 1036 4316 RegAsm.exe 100 PID 4316 wrote to memory of 1036 4316 RegAsm.exe 100 PID 4316 wrote to memory of 4048 4316 RegAsm.exe 101 PID 4316 wrote to memory of 4048 4316 RegAsm.exe 101 PID 4316 wrote to memory of 4048 4316 RegAsm.exe 101 PID 4316 wrote to memory of 4048 4316 RegAsm.exe 101 PID 4316 wrote to memory of 4048 4316 RegAsm.exe 101 PID 4316 wrote to memory of 4048 4316 RegAsm.exe 101 PID 4316 wrote to memory of 4048 4316 RegAsm.exe 101 PID 4316 wrote to memory of 4048 4316 RegAsm.exe 101 PID 4316 wrote to memory of 4048 4316 RegAsm.exe 101
Processes
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C:\Users\Admin\AppData\Local\Temp\6220dbc17e6c4579e23a93c103344d04_JaffaCakes118.exe"C:\Users\Admin\AppData\Local\Temp\6220dbc17e6c4579e23a93c103344d04_JaffaCakes118.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2280 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"2⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4316 -
C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exeC:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe /stext "C:\Users\Admin\AppData\Local\Temp\holdermail.txt"3⤵
- Accesses Microsoft Outlook accounts
PID:1036
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C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exeC:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe /stext "C:\Users\Admin\AppData\Local\Temp\holderwb.txt"3⤵
- Suspicious behavior: EnumeratesProcesses
PID:4048
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
3KB
MD5f94dc819ca773f1e3cb27abbc9e7fa27
SHA19a7700efadc5ea09ab288544ef1e3cd876255086
SHA256a3377ade83786c2bdff5db19ff4dbfd796da4312402b5e77c4c63e38cc6eff92
SHA51272a2c10d7a53a7f9a319dab66d77ed65639e9aa885b551e0055fc7eaf6ef33bbf109205b42ae11555a0f292563914bc6edb63b310c6f9bda9564095f77ab9196