Analysis
- max time kernel
130s - max time network
133s - platform
windows10_x64 - resource
win10-en-20211208 - submitted
11/01/2022, 09:40
Static task
static1
Behavioral task
behavioral1
Sample
csrss.exe
Resource
win7-en-20211208
0 signatures
0 seconds
General
- Target csrss.exe
- Size 407KB
- Sample220111-lm78mafdfr
- SHA256 291df8186e62df74b8fcf2c361c6913b9b73e3e864dde58eb63d5c3159a4c32d
- MD5 b5c24babb07034a4a7936b444a4b2513
- SHA1 0f71466f68ba2c946f95c12c31f1c853ac872d9f
- SHA512 f72ccd8c6e4fd16919bcb55f3aebe885638f8750fbd975f3a6b6903f151d927fbed0d8273e4b136f54610c68d3dd4708f4671f732696a8e84992d22144053936
- MD5 SHA1 SHA512
Malware Config
Extracted
Family
-
lokibot
C2
-
http://secure01-redirect.net/gc7/fre.php
-
http://kbfvzoboss.bid/alien/fre.php
-
http://alphastand.trade/alien/fre.php
-
http://alphastand.win/alien/fre.php
-
http://alphastand.top/alien/fre.php
Signatures
- suricata: ET MALWARE LokiBot Checkin
suricata: ET MALWARE LokiBot Checkin
- suricata: ET MALWARE LokiBot User-Agent (Charon/Inferno)
suricata: ET MALWARE LokiBot User-Agent (Charon/Inferno)
- Loads dropped DLL 1 IoCs
pid Process 3068 csrss.exe - Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2361464256-2201551969-2316606395-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook csrss.exe Key opened \REGISTRY\USER\S-1-5-21-2361464256-2201551969-2316606395-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook csrss.exe Key opened \REGISTRY\USER\S-1-5-21-2361464256-2201551969-2316606395-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook csrss.exe - Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 3068 set thread context of 2524 3068 csrss.exe 69 - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Suspicious behavior: RenamesItself 1 IoCs
pid Process 2524 csrss.exe - Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 2524 csrss.exe - Suspicious use of WriteProcessMemory 9 IoCs
description pid Process procid_target PID 3068 wrote to memory of 2524 3068 csrss.exe 69 PID 3068 wrote to memory of 2524 3068 csrss.exe 69 PID 3068 wrote to memory of 2524 3068 csrss.exe 69 PID 3068 wrote to memory of 2524 3068 csrss.exe 69 PID 3068 wrote to memory of 2524 3068 csrss.exe 69 PID 3068 wrote to memory of 2524 3068 csrss.exe 69 PID 3068 wrote to memory of 2524 3068 csrss.exe 69 PID 3068 wrote to memory of 2524 3068 csrss.exe 69 PID 3068 wrote to memory of 2524 3068 csrss.exe 69 - outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2361464256-2201551969-2316606395-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook csrss.exe - outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2361464256-2201551969-2316606395-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook csrss.exe
Processes
-
C:\Users\Admin\AppData\Local\Temp\csrss.exe"C:\Users\Admin\AppData\Local\Temp\csrss.exe"1⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3068 -
C:\Users\Admin\AppData\Local\Temp\csrss.exe"C:\Users\Admin\AppData\Local\Temp\csrss.exe"2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: RenamesItself
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:2524
-