Analysis
- max time kernel
150s - max time network
152s - platform
windows10_x64 - resource
win10-en-20210920 - submitted
26/09/2021, 11:06
General
- Target 536a5923e7d715d78d0280c4f029a689.exe
- Size 145KB
- Sample210926-m7ebqaefdp
- SHA256 64cb3ce12c5cdfdf4e0dd3e9f0bcd9e43745ee83c3289a27c73f6c6f4243049c
Malware Config
Extracted
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smokeloader
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2020
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http://naghenrietti1.top/
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http://kimballiett2.top/
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http://xadriettany3.top/
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http://jebeccallis4.top/
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http://nityanneron5.top/
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http://umayaniela6.top/
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http://lynettaram7.top/
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http://sadineyalas8.top/
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http://geenaldencia9.top/
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http://aradysiusep10.top/
Extracted
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redline
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qq
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135.181.142.223:30397
Extracted
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redline
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installszxc
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138.124.186.2:27999
Extracted
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raccoon
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f6d7183c9e82d2a9b81e6c0608450aa66cefb51f
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url4cnc
https://t.me/justoprostohello
Extracted
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raccoon
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d4d8e30c16491ca1c11f7aa675764335342faedf
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url4cnc
https://t.me/hcdrom1
Extracted
-
raccoon
-
5ff0ccb2bc00dc52d1ad09949e9c7663bc9ca4d4
-
url4cnc
https://t.me/agrybirdsgamerept
Signatures
- Raccoon
Simple but powerful infostealer which was very active in 2019.
- RedLine
RedLine Stealer is a malware family written in C#, first appearing in early 2020.
- RedLine Payload 5 IoCs
- SmokeLoader
Modular backdoor trojan in use since 2014.
- suricata: ET MALWARE Win32.Raccoon Stealer Data Exfil Attempt
suricata: ET MALWARE Win32.Raccoon Stealer Data Exfil Attempt
- Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs
- Downloads MZ/PE file
- Executes dropped EXE 12 IoCs
- Checks BIOS information in registry 2 TTPs 2 IoCs
BIOS information is often read in order to detect sandboxing environments.
- Deletes itself 1 IoCs
- Loads dropped DLL 6 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.
- Themida packer 3 IoCs
Detects Themida, an advanced Windows software protection system.
- Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
- Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
- Checks whether UAC is enabled 1 TTPs 1 IoCs
- Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
- Suspicious use of SetThreadContext 3 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Checks SCSI registry key(s) 3 TTPs 6 IoCs
SCSI information is often read in order to detect sandboxing environments.
- Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
- Delays execution with timeout.exe 1 IoCs
- Suspicious behavior: EnumeratesProcesses 64 IoCs
- Suspicious behavior: GetForegroundWindowSpam 1 IoCs
- Suspicious behavior: MapViewOfSection 2 IoCs
- Suspicious use of AdjustPrivilegeToken 64 IoCs
- Suspicious use of WriteProcessMemory 59 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\536a5923e7d715d78d0280c4f029a689.exe"C:\Users\Admin\AppData\Local\Temp\536a5923e7d715d78d0280c4f029a689.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\536a5923e7d715d78d0280c4f029a689.exe"C:\Users\Admin\AppData\Local\Temp\536a5923e7d715d78d0280c4f029a689.exe"2⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
-
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C:\Users\Admin\AppData\Local\Temp\F64D.exeC:\Users\Admin\AppData\Local\Temp\F64D.exe1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\F64D.exeC:\Users\Admin\AppData\Local\Temp\F64D.exe2⤵
- Executes dropped EXE
- Checks SCSI registry key(s)
- Suspicious behavior: MapViewOfSection
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C:\Users\Admin\AppData\Local\Temp\FA07.exeC:\Users\Admin\AppData\Local\Temp\FA07.exe1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\FA07.exeC:\Users\Admin\AppData\Local\Temp\FA07.exe2⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
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C:\Users\Admin\AppData\Local\Temp\199.exeC:\Users\Admin\AppData\Local\Temp\199.exe1⤵
- Executes dropped EXE
- Checks BIOS information in registry
- Checks whether UAC is enabled
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of AdjustPrivilegeToken
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C:\Users\Admin\AppData\Local\Temp\CB6.exeC:\Users\Admin\AppData\Local\Temp\CB6.exe1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\ProgramData\Stub.exe"C:\ProgramData\Stub.exe"2⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
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C:\Users\Admin\AppData\Local\Temp\1AD0.exeC:\Users\Admin\AppData\Local\Temp\1AD0.exe1⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\Ke182DkD5O.exe"C:\Users\Admin\AppData\Local\Temp\Ke182DkD5O.exe"2⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\schtasks.exe/C /create /F /sc minute /mo 1 /tn "Azure-Update-Task" /tr "C:\Users\Admin\AppData\Roaming\Microsoft\Network\sihost.exe"3⤵
- Creates scheduled task(s)
-
-
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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\1AD0.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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-
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C:\Users\Admin\AppData\Local\Temp\213A.exeC:\Users\Admin\AppData\Local\Temp\213A.exe1⤵
- Executes dropped EXE
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C:\Users\Admin\AppData\Local\Temp\2BDA.exeC:\Users\Admin\AppData\Local\Temp\2BDA.exe1⤵
- Executes dropped EXE
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C:\Users\Admin\AppData\Roaming\Microsoft\Network\sihost.exeC:\Users\Admin\AppData\Roaming\Microsoft\Network\sihost.exe1⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\schtasks.exe/C /create /F /sc minute /mo 1 /tn "Azure-Update-Task" /tr "C:\Users\Admin\AppData\Roaming\Microsoft\Network\sihost.exe"2⤵
- Creates scheduled task(s)
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/864-185-0x0000000002140000-0x00000000021D0000-memory.dmp
memory/864-186-0x0000000000400000-0x00000000004F2000-memory.dmp
memory/1016-232-0x0000000000400000-0x00000000004A8000-memory.dmp
memory/1468-117-0x0000000000540000-0x0000000000549000-memory.dmp
memory/1496-195-0x0000000000400000-0x00000000004F2000-memory.dmp
memory/1496-194-0x00000000020E0000-0x0000000002170000-memory.dmp
memory/1984-151-0x00000000057A0000-0x00000000057A1000-memory.dmp
memory/1984-148-0x0000000000E40000-0x0000000000E41000-memory.dmp
memory/2132-196-0x00000000076B0000-0x00000000076B1000-memory.dmp
memory/2132-143-0x0000000005710000-0x0000000005711000-memory.dmp
memory/2132-137-0x0000000000400000-0x0000000000422000-memory.dmp
memory/2132-142-0x0000000005D00000-0x0000000005D01000-memory.dmp
memory/2132-147-0x0000000005840000-0x0000000005841000-memory.dmp
memory/2132-150-0x00000000056F0000-0x0000000005CF6000-memory.dmp
memory/2132-152-0x00000000057A0000-0x00000000057A1000-memory.dmp
memory/2132-191-0x0000000007340000-0x0000000007341000-memory.dmp
memory/2132-153-0x00000000057E0000-0x00000000057E1000-memory.dmp
memory/2132-187-0x0000000007050000-0x0000000007051000-memory.dmp
memory/2132-188-0x0000000007750000-0x0000000007751000-memory.dmp
memory/2188-201-0x0000000000400000-0x00000000004F2000-memory.dmp
memory/2188-200-0x0000000000760000-0x00000000007F0000-memory.dmp
memory/2200-115-0x0000000000400000-0x0000000000409000-memory.dmp
memory/2812-130-0x0000000005170000-0x0000000005171000-memory.dmp
memory/2812-127-0x0000000004F50000-0x0000000004F51000-memory.dmp
memory/2812-129-0x0000000005680000-0x0000000005681000-memory.dmp
memory/2812-128-0x0000000004F10000-0x0000000004F11000-memory.dmp
memory/2812-125-0x0000000000730000-0x0000000000731000-memory.dmp
memory/2872-118-0x0000000000430000-0x0000000000446000-memory.dmp
memory/2872-160-0x0000000002660000-0x0000000002676000-memory.dmp
memory/3616-157-0x0000000000C20000-0x0000000000C21000-memory.dmp
memory/3616-177-0x0000000005460000-0x0000000005A66000-memory.dmp
memory/3616-212-0x00000000079E0000-0x00000000079E1000-memory.dmp
memory/3944-227-0x00000000001D0000-0x00000000001D4000-memory.dmp
memory/3944-228-0x0000000000400000-0x00000000004A8000-memory.dmp
memory/4052-178-0x00000000055B0000-0x00000000055B1000-memory.dmp
memory/4052-170-0x00000000009A0000-0x00000000009A1000-memory.dmp
memory/4052-164-0x0000000077E30000-0x0000000077FBE000-memory.dmp