Analysis
- max time kernel
43s - max time network
57s - platform
windows10_x64 - resource
win10-en-20210920 - submitted
04/11/2021, 11:09
General
- Target doc3723636638837373344.exe
- Size 546KB
- Sample211104-m9cwnsdeeq
- SHA256 2b6b5926ec7e5d6acea355bbd8f43a89850ed85e0c3739edfad2608ead9f1573
Malware Config
Extracted
-
blustealer
-
Protocol
smtp
-
Host
mail.yekamuhendislik.com
-
Port
587
-
Username
-
Password
MuhasebE123*
Signatures
- BluStealer
A Modular information stealer written in Visual Basic.
- 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 4 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of WriteProcessMemory 11 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\doc3723636638837373344.exe"C:\Users\Admin\AppData\Local\Temp\doc3723636638837373344.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\ARXXSy" /XML "C:\Users\Admin\AppData\Local\Temp\tmp7309.tmp"2⤵
- Creates scheduled task(s)
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C:\Users\Admin\AppData\Local\Temp\doc3723636638837373344.exe"C:\Users\Admin\AppData\Local\Temp\doc3723636638837373344.exe"2⤵
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/1536-125-0x0000000000400000-0x0000000000456000-memory.dmp
memory/3484-115-0x0000000000540000-0x0000000000541000-memory.dmp
memory/3484-117-0x0000000005410000-0x0000000005411000-memory.dmp
memory/3484-118-0x0000000004E00000-0x0000000004E01000-memory.dmp
memory/3484-119-0x0000000004EA0000-0x0000000004EA1000-memory.dmp
memory/3484-120-0x0000000004F10000-0x000000000540E000-memory.dmp
memory/3484-121-0x0000000005010000-0x0000000005016000-memory.dmp
memory/3484-122-0x0000000005BB0000-0x0000000005BB1000-memory.dmp
memory/3484-123-0x0000000005D50000-0x0000000005DC9000-memory.dmp