Analysis
- max time kernel
150s - max time network
150s - platform
windows10-2004_x64 - resource
win10v2004-20240226-en - resource tags
- submitted
13/03/2024, 03:04
General
- Target c4cfd5300fef3f2dd6857d34734a6fd6.exe
- Size 201KB
- Sample240313-dknr7sdc63
- SHA256 94f8df3b1fe7da98f6cea66de08e1d5bca079c8bf8d634d031cc35eb444b15b8
Malware Config
Extracted
-
smokeloader
-
2020
-
http://readinglistforaugust1.xyz/
-
http://readinglistforaugust2.xyz/
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http://readinglistforaugust3.xyz/
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http://readinglistforaugust4.xyz/
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http://readinglistforaugust5.xyz/
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http://readinglistforaugust6.xyz/
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http://readinglistforaugust7.xyz/
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http://readinglistforaugust8.xyz/
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http://readinglistforaugust9.xyz/
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http://readinglistforaugust10.xyz/
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http://readinglistforaugust1.site/
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http://readinglistforaugust2.site/
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http://readinglistforaugust3.site/
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http://readinglistforaugust4.site/
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http://readinglistforaugust5.site/
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http://readinglistforaugust6.site/
-
http://readinglistforaugust7.site/
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http://readinglistforaugust8.site/
-
http://readinglistforaugust9.site/
-
http://readinglistforaugust10.site/
Signatures
- SmokeLoader
Modular backdoor trojan in use since 2014.
- Deletes itself 1 IoCs
- Suspicious use of SetThreadContext 1 IoCs
- Program crash 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: MapViewOfSection 1 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of UnmapMainImage 1 IoCs
- Suspicious use of WriteProcessMemory 6 IoCs
- Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
Processes
-
C:\Users\Admin\AppData\Local\Temp\c4cfd5300fef3f2dd6857d34734a6fd6.exe"C:\Users\Admin\AppData\Local\Temp\c4cfd5300fef3f2dd6857d34734a6fd6.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\c4cfd5300fef3f2dd6857d34734a6fd6.exe"C:\Users\Admin\AppData\Local\Temp\c4cfd5300fef3f2dd6857d34734a6fd6.exe"2⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4560 -s 3283⤵
- Program crash
-
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 4560 -ip 45601⤵
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
memory/3448-5-0x0000000002D00000-0x0000000002D16000-memory.dmp
memory/4560-3-0x0000000000400000-0x0000000000409000-memory.dmp
memory/4560-4-0x0000000000400000-0x0000000000409000-memory.dmp
memory/4560-8-0x0000000000400000-0x0000000000409000-memory.dmp
memory/5104-1-0x0000000002DB0000-0x0000000002EB0000-memory.dmp
memory/5104-2-0x0000000002DA0000-0x0000000002DAA000-memory.dmp