Analysis
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max time kernel
124s -
max time network
125s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system -
submitted
03-10-2024 07:08
Static task
static1
Behavioral task
behavioral1
Sample
offer.pdf.exe
Resource
win7-20240704-en
Behavioral task
behavioral2
Sample
offer.pdf.exe
Resource
win10v2004-20240802-en
General
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Target
offer.pdf.exe
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Size
1.1MB
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MD5
ddd764f5db42b068e1d14bdb8e89e32e
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SHA1
8bea1272325ac17dabd0f820e2e822035222bc13
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SHA256
80901284eab8de2631adda7fd1f089640c1c5891f30a2c2de8c77c293d3a5e11
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SHA512
b938f0d6a8d2a4f933c659576b711fa5691f203161ad2e8b2c2f96fb225446f131d2b2afb0d4964cccfa03e5e6247b763d2d82f19d6ff813cb0cbef09ea365db
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SSDEEP
12288:Tu9e78iSqcgdCXBeOe/Zyt//EFz6s1x5/MctTWlMXH8TxoRDM02E3s4TmO9CwXtH:+u8gcRcZyFMF6spxJC/TyRoVE3b
Malware Config
Extracted
Protocol: ftp- Host:
ftp.awaratrendz.com - Port:
21 - Username:
[email protected] - Password:
Q&N.)e{R7G^]
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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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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Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
offer.pdf.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-786284298-625481688-3210388970-1000\Control Panel\International\Geo\Nation offer.pdf.exe -
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
Processes:
offer.pdf.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-786284298-625481688-3210388970-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 offer.pdf.exe Key opened \REGISTRY\USER\S-1-5-21-786284298-625481688-3210388970-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 offer.pdf.exe Key opened \REGISTRY\USER\S-1-5-21-786284298-625481688-3210388970-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 offer.pdf.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.
Processes:
flow ioc 25 checkip.dyndns.org -
Suspicious use of SetThreadContext 1 IoCs
Processes:
offer.pdf.exedescription pid process target process PID 4336 set thread context of 3192 4336 offer.pdf.exe offer.pdf.exe -
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.
Processes:
offer.pdf.exeoffer.pdf.exepowershell.exedescription ioc process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language offer.pdf.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language offer.pdf.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language powershell.exe -
Suspicious behavior: EnumeratesProcesses 6 IoCs
Processes:
offer.pdf.exeoffer.pdf.exepowershell.exepid process 4336 offer.pdf.exe 4336 offer.pdf.exe 3192 offer.pdf.exe 3160 powershell.exe 3160 powershell.exe 3192 offer.pdf.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
Processes:
offer.pdf.exeoffer.pdf.exepowershell.exedescription pid process Token: SeDebugPrivilege 4336 offer.pdf.exe Token: SeDebugPrivilege 3192 offer.pdf.exe Token: SeDebugPrivilege 3160 powershell.exe -
Suspicious use of WriteProcessMemory 14 IoCs
Processes:
offer.pdf.exedescription pid process target process PID 4336 wrote to memory of 3160 4336 offer.pdf.exe powershell.exe PID 4336 wrote to memory of 3160 4336 offer.pdf.exe powershell.exe PID 4336 wrote to memory of 3160 4336 offer.pdf.exe powershell.exe PID 4336 wrote to memory of 1304 4336 offer.pdf.exe offer.pdf.exe PID 4336 wrote to memory of 1304 4336 offer.pdf.exe offer.pdf.exe PID 4336 wrote to memory of 1304 4336 offer.pdf.exe offer.pdf.exe PID 4336 wrote to memory of 3192 4336 offer.pdf.exe offer.pdf.exe PID 4336 wrote to memory of 3192 4336 offer.pdf.exe offer.pdf.exe PID 4336 wrote to memory of 3192 4336 offer.pdf.exe offer.pdf.exe PID 4336 wrote to memory of 3192 4336 offer.pdf.exe offer.pdf.exe PID 4336 wrote to memory of 3192 4336 offer.pdf.exe offer.pdf.exe PID 4336 wrote to memory of 3192 4336 offer.pdf.exe offer.pdf.exe PID 4336 wrote to memory of 3192 4336 offer.pdf.exe offer.pdf.exe PID 4336 wrote to memory of 3192 4336 offer.pdf.exe offer.pdf.exe -
outlook_office_path 1 IoCs
Processes:
offer.pdf.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-786284298-625481688-3210388970-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 offer.pdf.exe -
outlook_win_path 1 IoCs
Processes:
offer.pdf.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-786284298-625481688-3210388970-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 offer.pdf.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\offer.pdf.exe"C:\Users\Admin\AppData\Local\Temp\offer.pdf.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4336 -
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\offer.pdf.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3160 -
C:\Users\Admin\AppData\Local\Temp\offer.pdf.exe"C:\Users\Admin\AppData\Local\Temp\offer.pdf.exe"2⤵PID:1304
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C:\Users\Admin\AppData\Local\Temp\offer.pdf.exe"C:\Users\Admin\AppData\Local\Temp\offer.pdf.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
PID:3192
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
MD58ec831f3e3a3f77e4a7b9cd32b48384c
SHA1d83f09fd87c5bd86e045873c231c14836e76a05c
SHA2567667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982
SHA51226bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82