Analysis
- max time kernel
150s - max time network
154s - platform
windows10_x64 - resource
win10v20210410 - submitted
03/08/2021, 16:09
General
- Target 7b45ecfd38a20fdfdeaf3fe062e11a47.exe
- Size 192KB
- Sample210803-frfg9969vj
- SHA256 0cd327d648018f31e5a411a72c839b8b74bb188488a32ddf7289990ae516fa7d
Malware Config
Extracted
-
smokeloader
-
2020
-
http://readinglistforjuly1.xyz/
-
http://readinglistforjuly2.xyz/
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http://readinglistforjuly3.xyz/
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http://readinglistforjuly4.xyz/
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http://readinglistforjuly5.xyz/
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http://readinglistforjuly6.xyz/
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http://readinglistforjuly7.xyz/
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http://readinglistforjuly8.xyz/
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http://readinglistforjuly9.xyz/
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http://readinglistforjuly10.xyz/
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http://readinglistforjuly1.site/
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http://readinglistforjuly2.site/
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http://readinglistforjuly3.site/
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http://readinglistforjuly4.site/
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http://readinglistforjuly5.site/
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http://readinglistforjuly6.site/
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http://readinglistforjuly7.site/
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http://readinglistforjuly8.site/
-
http://readinglistforjuly9.site/
-
http://readinglistforjuly10.site/
Signatures
- RedLine
RedLine Stealer is a malware family written in C#, first appearing in early 2020.
- RedLine Payload 1 IoCs
- SmokeLoader
Modular backdoor trojan in use since 2014.
- Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs
- Downloads MZ/PE file
- Executes dropped EXE 2 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
- Themida packer 2 IoCs
Detects Themida, an advanced Windows software protection system.
- Checks whether UAC is enabled 1 TTPs 1 IoCs
- Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
- 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.
- Suspicious behavior: EnumeratesProcesses 64 IoCs
- Suspicious behavior: GetForegroundWindowSpam 1 IoCs
- Suspicious behavior: MapViewOfSection 1 IoCs
- Suspicious use of AdjustPrivilegeToken 13 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of UnmapMainImage 1 IoCs
- Suspicious use of WriteProcessMemory 12 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\7b45ecfd38a20fdfdeaf3fe062e11a47.exe"C:\Users\Admin\AppData\Local\Temp\7b45ecfd38a20fdfdeaf3fe062e11a47.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\7b45ecfd38a20fdfdeaf3fe062e11a47.exe"C:\Users\Admin\AppData\Local\Temp\7b45ecfd38a20fdfdeaf3fe062e11a47.exe"2⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
-
-
C:\Users\Admin\AppData\Local\Temp\BAE9.exeC:\Users\Admin\AppData\Local\Temp\BAE9.exe1⤵
- Executes dropped EXE
- Suspicious use of SetWindowsHookEx
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C:\Users\Admin\AppData\Local\Temp\5243.exeC:\Users\Admin\AppData\Local\Temp\5243.exe1⤵
- Executes dropped EXE
- Checks BIOS information in registry
- Checks whether UAC is enabled
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/1284-130-0x0000000005520000-0x0000000005521000-memory.dmp
memory/1284-127-0x00000000002B0000-0x00000000002B1000-memory.dmp
memory/1284-134-0x00000000056C0000-0x00000000056C1000-memory.dmp
memory/1284-133-0x00000000057E0000-0x00000000057E1000-memory.dmp
memory/1284-132-0x00000000055C0000-0x00000000055C1000-memory.dmp
memory/1284-126-0x0000000077110000-0x000000007729E000-memory.dmp
memory/1284-131-0x0000000005580000-0x0000000005581000-memory.dmp
memory/1284-129-0x0000000005CE0000-0x0000000005CE1000-memory.dmp
memory/2888-114-0x0000000000400000-0x0000000000409000-memory.dmp
memory/2984-117-0x00000000010D0000-0x00000000010E6000-memory.dmp
memory/3172-116-0x0000000002D50000-0x0000000002D5A000-memory.dmp