Analysis
- max time kernel
4294183s - max time network
126s - platform
windows7_x64 - resource
win7-20220311-en - submitted
29/03/2022, 04:32
General
- Target SLPO19847,pdf.exe
- Size 987KB
- Sample220329-e5yzcaffek
- SHA256 4faf777c10dd803bf568dae9a4d27f4db2fcfeb54df64fa37b0c883fb0f029ca
Malware Config
Extracted
-
Protocol
smtp
-
Host
mail.floragumruk.com.tr
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Port
587
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Username
-
Password
F8VAZmULpm(9
Extracted
-
snakekeylogger
-
Protocol
smtp
-
Host
mail.floragumruk.com.tr
-
Port
587
-
Username
-
Password
F8VAZmULpm(9
-
Email to
Signatures
- Snake Keylogger
Keylogger and Infostealer first seen in November 2020.
- Snake Keylogger Payload 6 IoCs
- 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
- Looks up external IP address via web service 3 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
- Suspicious use of SetThreadContext 1 IoCs
- 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.
- Suspicious behavior: EnumeratesProcesses 7 IoCs
- Suspicious use of AdjustPrivilegeToken 3 IoCs
- Suspicious use of WriteProcessMemory 17 IoCs
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\SLPO19847,pdf.exe"C:\Users\Admin\AppData\Local\Temp\SLPO19847,pdf.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- 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\Roaming\BUfmFgi.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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-
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\BUfmFgi" /XML "C:\Users\Admin\AppData\Local\Temp\tmpCB1C.tmp"2⤵
- Creates scheduled task(s)
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C:\Users\Admin\AppData\Local\Temp\SLPO19847,pdf.exe"C:\Users\Admin\AppData\Local\Temp\SLPO19847,pdf.exe"2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
tmpCB1C.tmp
memory/780-75-0x0000000002540000-0x000000000318A000-memory.dmp
memory/780-74-0x000000006E5A0000-0x000000006EB4B000-memory.dmp
memory/780-59-0x0000000075271000-0x0000000075273000-memory.dmp
memory/1704-62-0x0000000000400000-0x0000000000426000-memory.dmp
memory/1704-63-0x0000000000400000-0x0000000000426000-memory.dmp
memory/1704-65-0x0000000000400000-0x0000000000426000-memory.dmp
memory/1704-67-0x0000000000400000-0x0000000000426000-memory.dmp
memory/1704-68-0x0000000000400000-0x0000000000426000-memory.dmp
memory/1704-71-0x0000000000400000-0x0000000000426000-memory.dmp
memory/1704-73-0x0000000000400000-0x0000000000426000-memory.dmp
memory/2012-61-0x00000000044A0000-0x00000000044C6000-memory.dmp
memory/2012-54-0x0000000000FA0000-0x000000000109E000-memory.dmp
memory/2012-56-0x0000000007F10000-0x0000000008000000-memory.dmp
memory/2012-55-0x0000000000440000-0x000000000044A000-memory.dmp