Analysis
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max time kernel
120s -
max time network
122s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
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submitted
17-12-2024 07:33
General
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Target
pre-stowage.PDF.scr.exe
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Size
886KB
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MD5
68dfd91fce9ad3d728a7c25716990edd
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SHA1
6a6843531a77b77892813360b3daf0b0bbfea8c2
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SHA256
525248e53005e0ec5a39b4aa00c2323e9f5be5a256ddd944707aba1b3dedba58
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SHA512
cb16e579c818d63d4be0798211ef3d4f36728804280920d4508366d5a65c2c6c237452fc7cce112c8baba49f481b89c132e9accee541eab26424bfd80df63049
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SSDEEP
12288:GqktMolx2euSXxT4lfsvAt75PAXfZ0mA4t3Rx5Z5MpaXv0cWP2vMPku+l0CPP:gtZPpXStlaRNJJRb8pqvmPd+p
Malware Config
Extracted
vipkeylogger
Signatures
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VIPKeylogger
VIPKeylogger is a keylogger and infostealer written in C# and it resembles SnakeKeylogger that was found in 2020.
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Vipkeylogger family
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Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs
Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.
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Disables Task Manager via registry modification
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Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
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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 3 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
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Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
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Suspicious use of SetThreadContext 1 IoCs
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Browser Information Discovery 1 TTPs
Enumerate browser information.
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Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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System Location Discovery: System Language Discovery 1 TTPs 3 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
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Suspicious behavior: EnumeratesProcesses 4 IoCs
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Suspicious use of AdjustPrivilegeToken 2 IoCs
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Suspicious use of WriteProcessMemory 11 IoCs
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outlook_office_path 1 IoCs
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outlook_win_path 1 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\pre-stowage.PDF.scr.exe"C:\Users\Admin\AppData\Local\Temp\pre-stowage.PDF.scr.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\pre-stowage.PDF.scr.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Users\Admin\AppData\Local\Temp\pre-stowage.PDF.scr.exe"C:\Users\Admin\AppData\Local\Temp\pre-stowage.PDF.scr.exe"2⤵
- Accesses Microsoft Outlook profiles
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
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Network
MITRE ATT&CK Enterprise v15
Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
2Credentials In Files
2Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
1KB
MD5b7b9acb869ccc7f7ecb5304ec0384dee
SHA16a90751c95817903ee833d59a0abbef425a613b3
SHA2568cb00a15cd942a1861c573d86d6fb430512c8e2f80f6349f48b16b8709ca7aa4
SHA5127bec881ac5f59ac26f1be1e7e26d63f040c06369de10c1c246e531a4395d27c335d9acc647ecdedb48ed37bdc2dc405a4cfc11762e1c00659a49be259eaf8764
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
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Filesize
288KB
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Filesize
7.7MB
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Filesize
7.7MB
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Filesize
1.8MB
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Filesize
320KB
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Filesize
7.7MB
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Filesize
7.7MB
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Filesize
568KB
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Filesize
4KB
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Filesize
624KB
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Filesize
7.7MB
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Filesize
4KB
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Filesize
152KB
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Filesize
7.7MB
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Filesize
40KB
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Filesize
7.7MB
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Filesize
3.3MB
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Filesize
584KB
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Filesize
5.6MB
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Filesize
912KB
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Filesize
3.3MB
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Filesize
104KB
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Filesize
136KB
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Filesize
120KB
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Filesize
304KB
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Filesize
408KB
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Filesize
200KB
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Filesize
304KB
-
Filesize
120KB
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Filesize
652KB
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Filesize
6.5MB
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Filesize
7.7MB
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Filesize
40KB
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Filesize
600KB
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Filesize
68KB
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Filesize
56KB
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Filesize
80KB
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Filesize
104KB
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Filesize
32KB
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Filesize
7.7MB
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Filesize
408KB
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Filesize
6.2MB
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Filesize
216KB
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Filesize
7.7MB