Analysis
- max time kernel
150s - max time network
48s - platform
windows7_x64 - resource
win7-20220812-en - resource tags
arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system - submitted
05/11/2022, 14:34
Static task
static1
Behavioral task
behavioral1
Sample
file.exe
Resource
win7-20220812-en
windows7-x64
7 signatures
150 seconds
Behavioral task
behavioral2
Sample
file.exe
Resource
win10v2004-20220901-en
windows10-2004-x64
9 signatures
150 seconds
General
- Target file.exe
- Size 287KB
- Sample221105-rxexqaadhj
- SHA256 09e7b73b6450917868f60df113ef6c55f20ab3c8187b35f0b76d955860bfffcd
- MD5 ece7f9a2e04af71a8adcb5015b0a233c
- SHA1 bb5a6e5f092d3465fc730bc558b9328b3d8a5543
- SHA512 e3c7fa4fa61881010a2a43efa85160a9af89789bc66e8b6720165a1c9280f473cc1d2d58f4012079bd848ab0234958ff2093193682ac0e65f86f924e3b5e081a
- SSDEEP 3072:cqXH6qKNbzgg2lq65aZLaU7xhszID2lGK+vovhE2zBmV6UNpEJ:FKqQ2MZhaU7eKe9IYEOm+
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Signatures
- Detects Smokeloader packer 5 IoCs
resource yara_rule behavioral1/memory/872-54-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral1/memory/872-55-0x0000000000402DD8-mapping.dmp family_smokeloader behavioral1/memory/1440-58-0x0000000000220000-0x0000000000229000-memory.dmp family_smokeloader behavioral1/memory/872-59-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral1/memory/872-60-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader - SmokeLoader
Modular backdoor trojan in use since 2014.
- Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 1440 set thread context of 872 1440 file.exe 28 - Checks SCSI registry key(s) 3 TTPs 3 IoCs
SCSI information is often read in order to detect sandboxing environments.
description ioc Process Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI file.exe Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI file.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI file.exe - Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 872 file.exe 872 file.exe 1244 Process not Found 1244 Process not Found 1244 Process not Found 1244 Process not Found 1244 Process not Found 1244 Process not Found 1244 Process not Found 1244 Process not Found 1244 Process not Found 1244 Process not Found 1244 Process not Found 1244 Process not Found 1244 Process not Found 1244 Process not Found 1244 Process not Found 1244 Process not Found 1244 Process not Found 1244 Process not Found 1244 Process not Found 1244 Process not Found 1244 Process not Found 1244 Process not Found 1244 Process not Found 1244 Process not Found 1244 Process not Found 1244 Process not Found 1244 Process not Found 1244 Process not Found 1244 Process not Found 1244 Process not Found 1244 Process not Found 1244 Process not Found 1244 Process not Found 1244 Process not Found 1244 Process not Found 1244 Process not Found 1244 Process not Found 1244 Process not Found 1244 Process not Found 1244 Process not Found 1244 Process not Found 1244 Process not Found 1244 Process not Found 1244 Process not Found 1244 Process not Found 1244 Process not Found 1244 Process not Found 1244 Process not Found 1244 Process not Found 1244 Process not Found 1244 Process not Found 1244 Process not Found 1244 Process not Found 1244 Process not Found 1244 Process not Found 1244 Process not Found 1244 Process not Found 1244 Process not Found 1244 Process not Found 1244 Process not Found 1244 Process not Found 1244 Process not Found - Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 872 file.exe - Suspicious use of WriteProcessMemory 7 IoCs
description pid Process procid_target PID 1440 wrote to memory of 872 1440 file.exe 28 PID 1440 wrote to memory of 872 1440 file.exe 28 PID 1440 wrote to memory of 872 1440 file.exe 28 PID 1440 wrote to memory of 872 1440 file.exe 28 PID 1440 wrote to memory of 872 1440 file.exe 28 PID 1440 wrote to memory of 872 1440 file.exe 28 PID 1440 wrote to memory of 872 1440 file.exe 28
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:1440 -
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:872
-