Analysis
- max time kernel
150s - max time network
120s - platform
windows10_x64 - resource
win10-en-20210920 - submitted
05/10/2021, 05:12
General
- Target 5604e4dc70c604340d68222760eb6c7a.exe
- Size 236KB
- Sample211005-fvvplshebr
- SHA256 29712959e15dd06735537ee66cdef63de2e25518e60308294c3cd5e227e14c1a
Malware Config
Extracted
-
smokeloader
-
2020
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http://fiskahlilian16.top/
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http://paishancho17.top/
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http://ydiannetter18.top/
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http://azarehanelle19.top/
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http://quericeriant20.top/
Extracted
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raccoon
-
1.8.1
-
5ff0ccb2bc00dc52d1ad09949e9c7663bc9ca4d4
-
url4cnc
https://t.me/agrybirdsgamerept
Signatures
- Raccoon
Simple but powerful infostealer which was very active in 2019.
- SmokeLoader
Modular backdoor trojan in use since 2014.
- suricata: ET MALWARE Win32.Raccoon Stealer CnC Activity (dependency download)
suricata: ET MALWARE Win32.Raccoon Stealer CnC Activity (dependency download)
- suricata: ET MALWARE Win32.Raccoon Stealer Data Exfil Attempt
suricata: ET MALWARE Win32.Raccoon Stealer Data Exfil Attempt
- Downloads MZ/PE file
- Executes dropped EXE 1 IoCs
- Deletes itself 1 IoCs
- Loads dropped DLL 5 IoCs
- 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.
- Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
- Suspicious use of SetThreadContext 1 IoCs
- Checks SCSI registry key(s) 3 TTPs 3 IoCs
SCSI information is often read in order to detect sandboxing environments.
- Delays execution with timeout.exe 1 IoCs
- Suspicious behavior: EnumeratesProcesses 64 IoCs
- Suspicious behavior: GetForegroundWindowSpam 1 IoCs
- Suspicious behavior: MapViewOfSection 1 IoCs
- Suspicious use of WriteProcessMemory 15 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\5604e4dc70c604340d68222760eb6c7a.exe"C:\Users\Admin\AppData\Local\Temp\5604e4dc70c604340d68222760eb6c7a.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\5604e4dc70c604340d68222760eb6c7a.exe"C:\Users\Admin\AppData\Local\Temp\5604e4dc70c604340d68222760eb6c7a.exe"2⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
-
-
C:\Users\Admin\AppData\Local\Temp\EA46.exeC:\Users\Admin\AppData\Local\Temp\EA46.exe1⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\cmd.execmd.exe /C timeout /T 10 /NOBREAK > Nul & Del /f /q "C:\Users\Admin\AppData\Local\Temp\EA46.exe"2⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\timeout.exetimeout /T 10 /NOBREAK3⤵
- Delays execution with timeout.exe
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/2524-117-0x0000000000030000-0x0000000000039000-memory.dmp
memory/2676-115-0x0000000000400000-0x0000000000409000-memory.dmp
memory/3036-118-0x0000000000570000-0x0000000000585000-memory.dmp
memory/3500-122-0x0000000000D30000-0x0000000000DC0000-memory.dmp
memory/3500-123-0x0000000000400000-0x00000000008AB000-memory.dmp