Analysis
- max time kernel
150s - max time network
151s - platform
windows10-2004_x64 - resource
win10v2004-20220812-en - resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system - submitted
15/01/2023, 03:39
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
win10v2004-20220812-en
windows10-2004-x64
10 signatures
150 seconds
General
- Target file.exe
- Size 207KB
- Sample230115-d7l7wshe49
- SHA256 9f20e49c480a2fe207f6967a71754d1f657cb449dfdbf13548d696a09620ba24
- MD5 81b9dae7a177f25da00c963d9159f7c8
- SHA1 9527895fe878b29c84cfe2ec6d4e31ce05e96ce5
- SHA512 7ae874b0822adcd2e4aab4397bf2ed07792d2753e0f9d739c9a873d3a273c8169b2fd89f43072af8bae5c7ce01aeb531b019eff4268ccce58c31cdc4e9e70202
- SSDEEP 3072:yXwk82HYFexPDA5uqYpmCDGhctcnmCOxQapb:yxHYFeZNqYpm3hctPC2p
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Signatures
- Detects Smokeloader packer 6 IoCs
resource yara_rule behavioral2/memory/2120-133-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/5060-135-0x0000000002D30000-0x0000000002D39000-memory.dmp family_smokeloader behavioral2/memory/2120-136-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/2120-137-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/3628-144-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/3628-145-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader - SmokeLoader
Modular backdoor trojan in use since 2014.
- Executes dropped EXE 2 IoCs
pid Process 2444 gtgjeuf 3628 gtgjeuf - Suspicious use of SetThreadContext 2 IoCs
description pid Process procid_target PID 5060 set thread context of 2120 5060 file.exe 83 PID 2444 set thread context of 3628 2444 gtgjeuf 92 - Checks SCSI registry key(s) 3 TTPs 6 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 Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI gtgjeuf Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI gtgjeuf Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI gtgjeuf - Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 2120 file.exe 2120 file.exe 2212 Process not Found 2212 Process not Found 2212 Process not Found 2212 Process not Found 2212 Process not Found 2212 Process not Found 2212 Process not Found 2212 Process not Found 2212 Process not Found 2212 Process not Found 2212 Process not Found 2212 Process not Found 2212 Process not Found 2212 Process not Found 2212 Process not Found 2212 Process not Found 2212 Process not Found 2212 Process not Found 2212 Process not Found 2212 Process not Found 2212 Process not Found 2212 Process not Found 2212 Process not Found 2212 Process not Found 2212 Process not Found 2212 Process not Found 2212 Process not Found 2212 Process not Found 2212 Process not Found 2212 Process not Found 2212 Process not Found 2212 Process not Found 2212 Process not Found 2212 Process not Found 2212 Process not Found 2212 Process not Found 2212 Process not Found 2212 Process not Found 2212 Process not Found 2212 Process not Found 2212 Process not Found 2212 Process not Found 2212 Process not Found 2212 Process not Found 2212 Process not Found 2212 Process not Found 2212 Process not Found 2212 Process not Found 2212 Process not Found 2212 Process not Found 2212 Process not Found 2212 Process not Found 2212 Process not Found 2212 Process not Found 2212 Process not Found 2212 Process not Found 2212 Process not Found 2212 Process not Found 2212 Process not Found 2212 Process not Found 2212 Process not Found 2212 Process not Found - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 2212 Process not Found - Suspicious behavior: MapViewOfSection 2 IoCs
pid Process 2120 file.exe 3628 gtgjeuf - Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeShutdownPrivilege 2212 Process not Found Token: SeCreatePagefilePrivilege 2212 Process not Found - Suspicious use of WriteProcessMemory 12 IoCs
description pid Process procid_target PID 5060 wrote to memory of 2120 5060 file.exe 83 PID 5060 wrote to memory of 2120 5060 file.exe 83 PID 5060 wrote to memory of 2120 5060 file.exe 83 PID 5060 wrote to memory of 2120 5060 file.exe 83 PID 5060 wrote to memory of 2120 5060 file.exe 83 PID 5060 wrote to memory of 2120 5060 file.exe 83 PID 2444 wrote to memory of 3628 2444 gtgjeuf 92 PID 2444 wrote to memory of 3628 2444 gtgjeuf 92 PID 2444 wrote to memory of 3628 2444 gtgjeuf 92 PID 2444 wrote to memory of 3628 2444 gtgjeuf 92 PID 2444 wrote to memory of 3628 2444 gtgjeuf 92 PID 2444 wrote to memory of 3628 2444 gtgjeuf 92
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:5060 -
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:2120
-
-
C:\Users\Admin\AppData\Roaming\gtgjeufC:\Users\Admin\AppData\Roaming\gtgjeuf1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2444 -
C:\Users\Admin\AppData\Roaming\gtgjeufC:\Users\Admin\AppData\Roaming\gtgjeuf2⤵
- Executes dropped EXE
- Checks SCSI registry key(s)
- Suspicious behavior: MapViewOfSection
PID:3628
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Roaming\gtgjeuf
- Size 207KB
- SHA256 9f20e49c480a2fe207f6967a71754d1f657cb449dfdbf13548d696a09620ba24
- MD5 81b9dae7a177f25da00c963d9159f7c8
- SHA1 9527895fe878b29c84cfe2ec6d4e31ce05e96ce5
- SHA512 7ae874b0822adcd2e4aab4397bf2ed07792d2753e0f9d739c9a873d3a273c8169b2fd89f43072af8bae5c7ce01aeb531b019eff4268ccce58c31cdc4e9e70202
- SSDEEP 3072:yXwk82HYFexPDA5uqYpmCDGhctcnmCOxQapb:yxHYFeZNqYpm3hctPC2p
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Roaming\gtgjeuf
- Size 207KB
- SHA256 9f20e49c480a2fe207f6967a71754d1f657cb449dfdbf13548d696a09620ba24
- MD5 81b9dae7a177f25da00c963d9159f7c8
- SHA1 9527895fe878b29c84cfe2ec6d4e31ce05e96ce5
- SHA512 7ae874b0822adcd2e4aab4397bf2ed07792d2753e0f9d739c9a873d3a273c8169b2fd89f43072af8bae5c7ce01aeb531b019eff4268ccce58c31cdc4e9e70202
- SSDEEP 3072:yXwk82HYFexPDA5uqYpmCDGhctcnmCOxQapb:yxHYFeZNqYpm3hctPC2p
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Roaming\gtgjeuf
- Size 207KB
- SHA256 9f20e49c480a2fe207f6967a71754d1f657cb449dfdbf13548d696a09620ba24
- MD5 81b9dae7a177f25da00c963d9159f7c8
- SHA1 9527895fe878b29c84cfe2ec6d4e31ce05e96ce5
- SHA512 7ae874b0822adcd2e4aab4397bf2ed07792d2753e0f9d739c9a873d3a273c8169b2fd89f43072af8bae5c7ce01aeb531b019eff4268ccce58c31cdc4e9e70202
- SSDEEP 3072:yXwk82HYFexPDA5uqYpmCDGhctcnmCOxQapb:yxHYFeZNqYpm3hctPC2p
- MD5 SHA1 SHA512 SSDEEP