Analysis
- max time kernel
122s - max time network
123s - platform
windows10_x64 - resource
win10v20210410 - submitted
21/04/2021, 11:07
General
- Target Bank Details.exe
- Size 561KB
- Sample210421-dar5jvwpz2
- SHA256 42369fde3cdabda5b102802a1071f0a46bb44ec3130a7a7012be3fcdea82c519
Malware Config
Extracted
-
snakekeylogger
-
Protocol
smtp
-
Host
smtp.vivaldi.net
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Port
587
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Username
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Password
chuksypayment1759
Signatures
- Snake Keylogger
Keylogger and Infostealer first seen in November 2020.
- Snake Keylogger Payload 2 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.
- 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 5 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of WriteProcessMemory 11 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\Bank Details.exe"C:\Users\Admin\AppData\Local\Temp\Bank Details.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\ehwkqfFFCRpc" /XML "C:\Users\Admin\AppData\Local\Temp\tmpB7D7.tmp"2⤵
- Creates scheduled task(s)
-
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C:\Users\Admin\AppData\Local\Temp\Bank Details.exe"C:\Users\Admin\AppData\Local\Temp\Bank Details.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/1436-135-0x0000000006780000-0x0000000006781000-memory.dmp
memory/1436-134-0x00000000053D0000-0x00000000053D1000-memory.dmp
memory/1436-127-0x0000000000400000-0x000000000046A000-memory.dmp
memory/4008-119-0x0000000004DA0000-0x0000000004DA1000-memory.dmp
memory/4008-123-0x0000000000EA0000-0x0000000000F0C000-memory.dmp
memory/4008-124-0x0000000008090000-0x00000000080F9000-memory.dmp
memory/4008-122-0x000000007EF20000-0x000000007EF21000-memory.dmp
memory/4008-121-0x0000000005240000-0x0000000005249000-memory.dmp
memory/4008-120-0x0000000004D50000-0x000000000524E000-memory.dmp
memory/4008-114-0x00000000004D0000-0x00000000004D1000-memory.dmp
memory/4008-118-0x0000000004E90000-0x0000000004E91000-memory.dmp
memory/4008-117-0x0000000004DF0000-0x0000000004DF1000-memory.dmp
memory/4008-116-0x0000000005250000-0x0000000005251000-memory.dmp