Analysis
- max time kernel
150s - max time network
41s - platform
windows7_x64 - resource
win7-20220812-en - resource tags
arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system - submitted
09/09/2022, 01:59
Static task
static1
Behavioral task
behavioral1
Sample
a3f051bdf591c6d1def8dc9bc20c9627.exe
Resource
win7-20220812-en
windows7-x64
7 signatures
150 seconds
Behavioral task
behavioral2
Sample
a3f051bdf591c6d1def8dc9bc20c9627.exe
Resource
win10v2004-20220812-en
windows10-2004-x64
10 signatures
150 seconds
General
- Target a3f051bdf591c6d1def8dc9bc20c9627.exe
- Size 206KB
- Sample220909-ceefxagcf5
- SHA256 d902a88b896fa15de8d51951e3964f6b87bcf916a7ec4e17eae9163b66bcbbbf
- MD5 a3f051bdf591c6d1def8dc9bc20c9627
- SHA1 c5aab23ec7163596c0f6b271230168bf0d58f0da
- SHA512 858069247ce9377c4990c6b6bbc1e3f9939545fd5c5dcf0dcf887d78dc999c441e3e883cbbbd7aabf6e1060f920ba1acd65210457d32a695485cff439663f6db
- SSDEEP 3072:rUbYHtURgy50DT7JcI+36FI7uzR/HPi/kMK3DECm33LEkIE+dp:oMdLDTZFXzHa33QkId
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Signatures
- Detects Smokeloader packer 5 IoCs
resource yara_rule behavioral1/memory/1400-54-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral1/memory/1400-55-0x0000000000402DD8-mapping.dmp family_smokeloader behavioral1/memory/1192-58-0x0000000000220000-0x0000000000229000-memory.dmp family_smokeloader behavioral1/memory/1400-59-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral1/memory/1400-60-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader - SmokeLoader
Modular backdoor trojan in use since 2014.
- Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 1192 set thread context of 1400 1192 a3f051bdf591c6d1def8dc9bc20c9627.exe 27 - Checks SCSI registry key(s) 3 TTPs 3 IoCs
SCSI information is often read in order to detect sandboxing environments.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI a3f051bdf591c6d1def8dc9bc20c9627.exe Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI a3f051bdf591c6d1def8dc9bc20c9627.exe Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI a3f051bdf591c6d1def8dc9bc20c9627.exe - Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 1400 a3f051bdf591c6d1def8dc9bc20c9627.exe 1400 a3f051bdf591c6d1def8dc9bc20c9627.exe 1248 Process not Found 1248 Process not Found 1248 Process not Found 1248 Process not Found 1248 Process not Found 1248 Process not Found 1248 Process not Found 1248 Process not Found 1248 Process not Found 1248 Process not Found 1248 Process not Found 1248 Process not Found 1248 Process not Found 1248 Process not Found 1248 Process not Found 1248 Process not Found 1248 Process not Found 1248 Process not Found 1248 Process not Found 1248 Process not Found 1248 Process not Found 1248 Process not Found 1248 Process not Found 1248 Process not Found 1248 Process not Found 1248 Process not Found 1248 Process not Found 1248 Process not Found 1248 Process not Found 1248 Process not Found 1248 Process not Found 1248 Process not Found 1248 Process not Found 1248 Process not Found 1248 Process not Found 1248 Process not Found 1248 Process not Found 1248 Process not Found 1248 Process not Found 1248 Process not Found 1248 Process not Found 1248 Process not Found 1248 Process not Found 1248 Process not Found 1248 Process not Found 1248 Process not Found 1248 Process not Found 1248 Process not Found 1248 Process not Found 1248 Process not Found 1248 Process not Found 1248 Process not Found 1248 Process not Found 1248 Process not Found 1248 Process not Found 1248 Process not Found 1248 Process not Found 1248 Process not Found 1248 Process not Found 1248 Process not Found 1248 Process not Found 1248 Process not Found - Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 1400 a3f051bdf591c6d1def8dc9bc20c9627.exe - Suspicious use of WriteProcessMemory 7 IoCs
description pid Process procid_target PID 1192 wrote to memory of 1400 1192 a3f051bdf591c6d1def8dc9bc20c9627.exe 27 PID 1192 wrote to memory of 1400 1192 a3f051bdf591c6d1def8dc9bc20c9627.exe 27 PID 1192 wrote to memory of 1400 1192 a3f051bdf591c6d1def8dc9bc20c9627.exe 27 PID 1192 wrote to memory of 1400 1192 a3f051bdf591c6d1def8dc9bc20c9627.exe 27 PID 1192 wrote to memory of 1400 1192 a3f051bdf591c6d1def8dc9bc20c9627.exe 27 PID 1192 wrote to memory of 1400 1192 a3f051bdf591c6d1def8dc9bc20c9627.exe 27 PID 1192 wrote to memory of 1400 1192 a3f051bdf591c6d1def8dc9bc20c9627.exe 27
Processes
-
C:\Users\Admin\AppData\Local\Temp\a3f051bdf591c6d1def8dc9bc20c9627.exe"C:\Users\Admin\AppData\Local\Temp\a3f051bdf591c6d1def8dc9bc20c9627.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1192 -
C:\Users\Admin\AppData\Local\Temp\a3f051bdf591c6d1def8dc9bc20c9627.exe"C:\Users\Admin\AppData\Local\Temp\a3f051bdf591c6d1def8dc9bc20c9627.exe"2⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
PID:1400
-