Analysis
- max time kernel
91s - max time network
158s - platform
windows10-2004_x64 - resource
win10v2004-20220414-en - submitted
25/06/2022, 06:24
Static task
static1
Behavioral task
behavioral1
Sample
98885a49acb18833bf0a73ce8693a0e3.exe
Resource
win7-20220414-en
Behavioral task
behavioral2
Sample
98885a49acb18833bf0a73ce8693a0e3.exe
Resource
win10v2004-20220414-en
General
- Target 98885a49acb18833bf0a73ce8693a0e3.exe
- Size 819KB
- Sample220625-g52fkshcdl
- SHA256 f77b7a53564f8553d56104dc2ef6e13a18aceeee08365418c2181cfc765279b8
- MD5 98885a49acb18833bf0a73ce8693a0e3
- SHA1 9870f8278b583460b544bb3486c5104b701a8d9a
- SHA512 df0a12c64193072e0548be4df09420da54a8d70432cdc61e00ee09849cb707e02494bbe2c8d26e5bd5fa2389f7775b7a964e8676365cac34c46027ddae463eeb
- MD5 SHA1 SHA512
Malware Config
Extracted
-
Protocol
smtp
-
Host
mail.bhungar.com
-
Port
587
-
Username
-
Password
i3cepm2X&{=1
Extracted
-
snakekeylogger
-
Protocol
smtp
-
Host
mail.bhungar.com
-
Port
587
-
Username
-
Password
i3cepm2X&{=1
-
Email to
Signatures
- Snake Keylogger
Keylogger and Infostealer first seen in November 2020.
- Snake Keylogger Payload 1 IoCs
resource yara_rule behavioral2/memory/4564-140-0x0000000000400000-0x000000000047C000-memory.dmp family_snakekeylogger - Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Control Panel\International\Geo\Nation 98885a49acb18833bf0a73ce8693a0e3.exe - Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
- Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
- 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-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 98885a49acb18833bf0a73ce8693a0e3.exe Key opened \REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 98885a49acb18833bf0a73ce8693a0e3.exe Key opened \REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 98885a49acb18833bf0a73ce8693a0e3.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 40 checkip.dyndns.org - Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 2576 set thread context of 4564 2576 98885a49acb18833bf0a73ce8693a0e3.exe 96 - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 3920 schtasks.exe - Suspicious behavior: EnumeratesProcesses 6 IoCs
pid Process 2576 98885a49acb18833bf0a73ce8693a0e3.exe 2576 98885a49acb18833bf0a73ce8693a0e3.exe 2576 98885a49acb18833bf0a73ce8693a0e3.exe 4564 98885a49acb18833bf0a73ce8693a0e3.exe 2276 powershell.exe 2276 powershell.exe - Suspicious behavior: RenamesItself 1 IoCs
pid Process 4564 98885a49acb18833bf0a73ce8693a0e3.exe - Suspicious use of AdjustPrivilegeToken 3 IoCs
description pid Process Token: SeDebugPrivilege 2576 98885a49acb18833bf0a73ce8693a0e3.exe Token: SeDebugPrivilege 4564 98885a49acb18833bf0a73ce8693a0e3.exe Token: SeDebugPrivilege 2276 powershell.exe - Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 4564 98885a49acb18833bf0a73ce8693a0e3.exe - Suspicious use of WriteProcessMemory 14 IoCs
description pid Process procid_target PID 2576 wrote to memory of 2276 2576 98885a49acb18833bf0a73ce8693a0e3.exe 92 PID 2576 wrote to memory of 2276 2576 98885a49acb18833bf0a73ce8693a0e3.exe 92 PID 2576 wrote to memory of 2276 2576 98885a49acb18833bf0a73ce8693a0e3.exe 92 PID 2576 wrote to memory of 3920 2576 98885a49acb18833bf0a73ce8693a0e3.exe 94 PID 2576 wrote to memory of 3920 2576 98885a49acb18833bf0a73ce8693a0e3.exe 94 PID 2576 wrote to memory of 3920 2576 98885a49acb18833bf0a73ce8693a0e3.exe 94 PID 2576 wrote to memory of 4564 2576 98885a49acb18833bf0a73ce8693a0e3.exe 96 PID 2576 wrote to memory of 4564 2576 98885a49acb18833bf0a73ce8693a0e3.exe 96 PID 2576 wrote to memory of 4564 2576 98885a49acb18833bf0a73ce8693a0e3.exe 96 PID 2576 wrote to memory of 4564 2576 98885a49acb18833bf0a73ce8693a0e3.exe 96 PID 2576 wrote to memory of 4564 2576 98885a49acb18833bf0a73ce8693a0e3.exe 96 PID 2576 wrote to memory of 4564 2576 98885a49acb18833bf0a73ce8693a0e3.exe 96 PID 2576 wrote to memory of 4564 2576 98885a49acb18833bf0a73ce8693a0e3.exe 96 PID 2576 wrote to memory of 4564 2576 98885a49acb18833bf0a73ce8693a0e3.exe 96 - outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 98885a49acb18833bf0a73ce8693a0e3.exe - outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 98885a49acb18833bf0a73ce8693a0e3.exe
Processes
-
C:\Users\Admin\AppData\Local\Temp\98885a49acb18833bf0a73ce8693a0e3.exe"C:\Users\Admin\AppData\Local\Temp\98885a49acb18833bf0a73ce8693a0e3.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2576 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\mKbnJx.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2276
-
-
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\mKbnJx" /XML "C:\Users\Admin\AppData\Local\Temp\tmp9CAD.tmp"2⤵
- Creates scheduled task(s)
PID:3920
-
-
C:\Users\Admin\AppData\Local\Temp\98885a49acb18833bf0a73ce8693a0e3.exe"C:\Users\Admin\AppData\Local\Temp\98885a49acb18833bf0a73ce8693a0e3.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:4564
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
- Path C:\Users\Admin\AppData\Local\Temp\tmp9CAD.tmp
- Size 1KB
- SHA256 7b757985195a4aec42f9ba112f6b1d3f54d0a04ff28fddfc20d0164b5e3b5470
- MD5 e91cf2cefe02a9bece18d284c6fd9785
- SHA1 bb84455f00fdc3cf9501cd7d201ceac9e9a1516a
- SHA512 0075a5e78f916b160532ec30a9aa384231099b8ec1afc57285ee56650fe10b46c40516fa21475822f2190175208f3910f202c3e2ec1046c775744d335f2548d0
- MD5 SHA1 SHA512