Analysis
- max time kernel
150s - max time network
119s - platform
windows10_x64 - resource
win10v20210408 - submitted
09/08/2021, 11:35
General
- Target 4a5b337f08d068654f968780d8236393.exe
- Size 222KB
- Sample210809-wsytatake2
- SHA256 392e2fc8bcf20d142620a90de7cc2632e86771a38db9b2a67a8809935ef97752
Score
10/10
Malware Config
Extracted
Family
-
smokeloader
Version
-
2020
C2
-
http://aucmoney.com/upload/
-
http://thegymmum.com/upload/
-
http://atvcampingtrips.com/upload/
-
http://kuapakualaman.com/upload/
-
http://renatazarazua.com/upload/
-
http://nasufmutlu.com/upload/
rc4.i32
rc4.i32
Signatures
- SmokeLoader
Modular backdoor trojan in use since 2014.
- Executes dropped EXE 1 IoCs
- Deletes itself 1 IoCs
- Checks SCSI registry key(s) 3 TTPs 6 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 2 IoCs
- Suspicious use of UnmapMainImage 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\4a5b337f08d068654f968780d8236393.exe"C:\Users\Admin\AppData\Local\Temp\4a5b337f08d068654f968780d8236393.exe"1⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
-
C:\Users\Admin\AppData\Roaming\crubiihC:\Users\Admin\AppData\Roaming\crubiih1⤵
- Executes dropped EXE
- Checks SCSI registry key(s)
- Suspicious behavior: MapViewOfSection
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/1988-119-0x0000000002C70000-0x0000000002D1E000-memory.dmp
memory/1988-120-0x0000000000400000-0x0000000002C6D000-memory.dmp
memory/3028-116-0x0000000000F80000-0x0000000000F96000-memory.dmp
memory/3028-121-0x0000000001090000-0x00000000010A6000-memory.dmp
memory/3728-115-0x0000000000400000-0x0000000002C6D000-memory.dmp
memory/3728-114-0x0000000002D50000-0x0000000002E9A000-memory.dmp