Analysis
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max time kernel
137s -
max time network
126s -
platform
windows10-2004_x64 -
resource
win10v2004-20240426-en -
resource tags
arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system -
submitted
17/05/2024, 16:49
Static task
static1
Behavioral task
behavioral1
Sample
okkkkkkkk.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
okkkkkkkk.exe
Resource
win10v2004-20240426-en
General
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Target
okkkkkkkk.exe
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Size
120KB
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MD5
50c2221345a927e9b1f20f49f4e32230
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SHA1
8cf858f3776a4d9d4f99aac814f24e646118bf5c
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SHA256
a8e4778e5023373038c2214d85fcbdbfe0e5f63ad721bed8def3ab65d1f292cb
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SHA512
c04993299fbfbcd4faefbfdca3753ee7a21db3f6f82448e7eee615349fd8f68d9a60bd0f666f5830a2aff7d3bde5fe0873f7d75f9fb0018fb2f917c469501494
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SSDEEP
3072:436hbrS9B+R64paFhoLU56OGt0ClArUhn3NrsM3OA6GKGA:Bbr66leyiy6uhnSM6G1
Malware Config
Signatures
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Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
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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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Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-4018855536-2201274732-320770143-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 okkkkkkkk.exe Key opened \REGISTRY\USER\S-1-5-21-4018855536-2201274732-320770143-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 okkkkkkkk.exe Key opened \REGISTRY\USER\S-1-5-21-4018855536-2201274732-320770143-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 okkkkkkkk.exe -
Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
flow ioc 23 checkip.dyndns.org -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 3288 set thread context of 3544 3288 okkkkkkkk.exe 87 -
Suspicious behavior: EnumeratesProcesses 3 IoCs
pid Process 3544 okkkkkkkk.exe 3544 okkkkkkkk.exe 3544 okkkkkkkk.exe -
Suspicious behavior: RenamesItself 1 IoCs
pid Process 3544 okkkkkkkk.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 3288 okkkkkkkk.exe Token: SeDebugPrivilege 3544 okkkkkkkk.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 3544 okkkkkkkk.exe -
Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 3288 wrote to memory of 3544 3288 okkkkkkkk.exe 87 PID 3288 wrote to memory of 3544 3288 okkkkkkkk.exe 87 PID 3288 wrote to memory of 3544 3288 okkkkkkkk.exe 87 PID 3288 wrote to memory of 3544 3288 okkkkkkkk.exe 87 PID 3288 wrote to memory of 3544 3288 okkkkkkkk.exe 87 PID 3288 wrote to memory of 3544 3288 okkkkkkkk.exe 87 PID 3288 wrote to memory of 3544 3288 okkkkkkkk.exe 87 PID 3288 wrote to memory of 3544 3288 okkkkkkkk.exe 87 -
outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-4018855536-2201274732-320770143-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 okkkkkkkk.exe -
outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-4018855536-2201274732-320770143-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 okkkkkkkk.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\okkkkkkkk.exe"C:\Users\Admin\AppData\Local\Temp\okkkkkkkk.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3288 -
C:\Users\Admin\AppData\Local\Temp\okkkkkkkk.exe"C:\Users\Admin\AppData\Local\Temp\okkkkkkkk.exe"2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: RenamesItself
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- outlook_office_path
- outlook_win_path
PID:3544
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
313B
MD500b72ea3d569eb0d4fb85691b642f47c
SHA1f9134a33706eb76ddb00e5276639d660a071da9b
SHA256cd62d4fbf8b135be5c0b8448a7d53db7784869761a10ec99473f58f44d8e686c
SHA51262af7608834d84fa95470247cab4bfa5a382825f81e9918b762e62dfc6c467e7b50cfb5b2fd36eff1da320e22aa8c1427c02820e06d9f2f6483e64740a43e8df