Analysis
- max time kernel
150s - max time network
52s - platform
windows7_x64 - resource
win7-20220901-en - resource tags
arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system - submitted
07/01/2023, 04:10
Static task
static1
Behavioral task
behavioral1
Sample
file.exe
Resource
win7-20220901-en
windows7-x64
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
file.exe
Resource
win10v2004-20221111-en
windows10-2004-x64
8 signatures
150 seconds
General
- Target file.exe
- Size 310KB
- Sample230107-erctyscf79
- SHA256 23c1eb43de5753c543b6c51a1f87ef4835ac51f3476236ceb8f418b32c2ddeba
- MD5 c45e5b0c15911035a4ec11f1d2dab994
- SHA1 2c6cddc0a47c5e27d95b80af99b01c2a150c477f
- SHA512 8a50ef00829132c7aa3088e3574149331ca1c2c9f299940775d1ec03bbefd973a663e1956ccb78e99ff9fb56f17b7ee320cd02f37b6ab7d8eec6e7ac97c0c972
- SSDEEP 6144:eQLR+iv5LfaZO66Z04e45T7nRi6Wb93Y:eQV+iv5ekCuR7RiH3Y
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Signatures
- Detects Smokeloader packer 5 IoCs
resource yara_rule behavioral1/memory/1260-58-0x0000000000220000-0x0000000000229000-memory.dmp family_smokeloader behavioral1/memory/820-55-0x0000000000402DD8-mapping.dmp family_smokeloader behavioral1/memory/820-54-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral1/memory/820-59-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral1/memory/820-60-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader - SmokeLoader
Modular backdoor trojan in use since 2014.
- Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 1260 set thread context of 820 1260 file.exe 26 - 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 file.exe Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI file.exe Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI file.exe - Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 820 file.exe 820 file.exe 1240 Process not Found 1240 Process not Found 1240 Process not Found 1240 Process not Found 1240 Process not Found 1240 Process not Found 1240 Process not Found 1240 Process not Found 1240 Process not Found 1240 Process not Found 1240 Process not Found 1240 Process not Found 1240 Process not Found 1240 Process not Found 1240 Process not Found 1240 Process not Found 1240 Process not Found 1240 Process not Found 1240 Process not Found 1240 Process not Found 1240 Process not Found 1240 Process not Found 1240 Process not Found 1240 Process not Found 1240 Process not Found 1240 Process not Found 1240 Process not Found 1240 Process not Found 1240 Process not Found 1240 Process not Found 1240 Process not Found 1240 Process not Found 1240 Process not Found 1240 Process not Found 1240 Process not Found 1240 Process not Found 1240 Process not Found 1240 Process not Found 1240 Process not Found 1240 Process not Found 1240 Process not Found 1240 Process not Found 1240 Process not Found 1240 Process not Found 1240 Process not Found 1240 Process not Found 1240 Process not Found 1240 Process not Found 1240 Process not Found 1240 Process not Found 1240 Process not Found 1240 Process not Found 1240 Process not Found 1240 Process not Found 1240 Process not Found 1240 Process not Found 1240 Process not Found 1240 Process not Found 1240 Process not Found 1240 Process not Found 1240 Process not Found 1240 Process not Found - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 1240 Process not Found - Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 820 file.exe - Suspicious use of WriteProcessMemory 7 IoCs
description pid Process procid_target PID 1260 wrote to memory of 820 1260 file.exe 26 PID 1260 wrote to memory of 820 1260 file.exe 26 PID 1260 wrote to memory of 820 1260 file.exe 26 PID 1260 wrote to memory of 820 1260 file.exe 26 PID 1260 wrote to memory of 820 1260 file.exe 26 PID 1260 wrote to memory of 820 1260 file.exe 26 PID 1260 wrote to memory of 820 1260 file.exe 26
Processes
-
C:\Users\Admin\AppData\Local\Temp\file.exe"C:\Users\Admin\AppData\Local\Temp\file.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1260 -
C:\Users\Admin\AppData\Local\Temp\file.exe"C:\Users\Admin\AppData\Local\Temp\file.exe"2⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
PID:820
-