Analysis
- max time kernel
150s - max time network
30s - platform
windows7_x64 - resource
win7-20221111-en - resource tags
arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system - submitted
13/02/2023, 08:54
Static task
static1
Behavioral task
behavioral1
Sample
file.exe
Resource
win7-20221111-en
windows7-x64
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
file.exe
Resource
win10v2004-20220812-en
windows10-2004-x64
8 signatures
150 seconds
General
- Target file.exe
- Size 197KB
- Sample230213-ktwbzacb22
- SHA256 2bba2f6e827728c4de90e1d5e2ddfa99e49ca8bd4df6d3b162324fa33d4802fe
- MD5 85fbe5e5be1214311573d0bc17bbe4f5
- SHA1 6de4fb45ee815528694199d9ad61c7251aa967be
- SHA512 f5f4c9455a8d05b5795748ff9d775b1dc4091b19049dea2f64d758a85a319a08764af262f029723baf2ebc5fba6b6cf214bba717ba6ec8661ec6ea441b93255f
- SSDEEP 3072:F3BdcS0JxJ4+KIKGppNFAqC8/Tln38cxFdZJp2fcDXwN4BOO6e843Ux:F3z90PKwppNFAqXTFdXwN4o1e8f
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Signatures
- Detects Smokeloader packer 5 IoCs
resource yara_rule behavioral1/memory/1724-54-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral1/memory/1724-55-0x0000000000402DD8-mapping.dmp family_smokeloader behavioral1/memory/840-58-0x0000000000220000-0x0000000000229000-memory.dmp family_smokeloader behavioral1/memory/1724-59-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral1/memory/1724-60-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader - SmokeLoader
Modular backdoor trojan in use since 2014.
- Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 840 set thread context of 1724 840 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 enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI file.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI file.exe Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI file.exe - Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 1724 file.exe 1724 file.exe 1272 Process not Found 1272 Process not Found 1272 Process not Found 1272 Process not Found 1272 Process not Found 1272 Process not Found 1272 Process not Found 1272 Process not Found 1272 Process not Found 1272 Process not Found 1272 Process not Found 1272 Process not Found 1272 Process not Found 1272 Process not Found 1272 Process not Found 1272 Process not Found 1272 Process not Found 1272 Process not Found 1272 Process not Found 1272 Process not Found 1272 Process not Found 1272 Process not Found 1272 Process not Found 1272 Process not Found 1272 Process not Found 1272 Process not Found 1272 Process not Found 1272 Process not Found 1272 Process not Found 1272 Process not Found 1272 Process not Found 1272 Process not Found 1272 Process not Found 1272 Process not Found 1272 Process not Found 1272 Process not Found 1272 Process not Found 1272 Process not Found 1272 Process not Found 1272 Process not Found 1272 Process not Found 1272 Process not Found 1272 Process not Found 1272 Process not Found 1272 Process not Found 1272 Process not Found 1272 Process not Found 1272 Process not Found 1272 Process not Found 1272 Process not Found 1272 Process not Found 1272 Process not Found 1272 Process not Found 1272 Process not Found 1272 Process not Found 1272 Process not Found 1272 Process not Found 1272 Process not Found 1272 Process not Found 1272 Process not Found 1272 Process not Found 1272 Process not Found - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 1272 Process not Found - Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 1724 file.exe - Suspicious use of WriteProcessMemory 7 IoCs
description pid Process procid_target PID 840 wrote to memory of 1724 840 file.exe 28 PID 840 wrote to memory of 1724 840 file.exe 28 PID 840 wrote to memory of 1724 840 file.exe 28 PID 840 wrote to memory of 1724 840 file.exe 28 PID 840 wrote to memory of 1724 840 file.exe 28 PID 840 wrote to memory of 1724 840 file.exe 28 PID 840 wrote to memory of 1724 840 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:840 -
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:1724
-