Analysis
- max time kernel
150s - max time network
123s - platform
windows10-2004_x64 - resource
win10v2004-20220812-en - resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system - submitted
06/01/2023, 11:19
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 311KB
- Sample230106-net25sbe5t
- SHA256 bf5deb42e439e5fc1e2117994bdb6483ebc724fabfeebede12293a325a91cfc7
- MD5 d7d7655f0a47063ef00c99486713406f
- SHA1 954da0c4e4a7e463e85d8d62a201d7be000c56bf
- SHA512 bbddc0a41697d999554f0a2a6743dcbf92ffb690a7ecfa785e3421bf3eaa86c27a4fef9e1ebabcf8b453bf19416d5b3db478ab2216900c11b690da34767e11ee
- SSDEEP 3072:I4XMVLjlJ75ks54DTm4XUJaZmztZdHNfS6NeGEpHTp+dPOK5twsR9wVCaSzdeO:RULjnOhHdiEmzbpNfS+dWKQNor
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Signatures
- Detects Smokeloader packer 6 IoCs
resource yara_rule behavioral2/memory/2268-133-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/2220-135-0x0000000002C40000-0x0000000002C49000-memory.dmp family_smokeloader behavioral2/memory/2268-136-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/2268-137-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/3924-144-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/3924-145-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader - SmokeLoader
Modular backdoor trojan in use since 2014.
- Executes dropped EXE 2 IoCs
pid Process 1276 wtdjgva 3924 wtdjgva - Suspicious use of SetThreadContext 2 IoCs
description pid Process procid_target PID 2220 set thread context of 2268 2220 file.exe 80 PID 1276 set thread context of 3924 1276 wtdjgva 89 - 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 wtdjgva Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI wtdjgva Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI wtdjgva - Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 2268 file.exe 2268 file.exe 700 Process not Found 700 Process not Found 700 Process not Found 700 Process not Found 700 Process not Found 700 Process not Found 700 Process not Found 700 Process not Found 700 Process not Found 700 Process not Found 700 Process not Found 700 Process not Found 700 Process not Found 700 Process not Found 700 Process not Found 700 Process not Found 700 Process not Found 700 Process not Found 700 Process not Found 700 Process not Found 700 Process not Found 700 Process not Found 700 Process not Found 700 Process not Found 700 Process not Found 700 Process not Found 700 Process not Found 700 Process not Found 700 Process not Found 700 Process not Found 700 Process not Found 700 Process not Found 700 Process not Found 700 Process not Found 700 Process not Found 700 Process not Found 700 Process not Found 700 Process not Found 700 Process not Found 700 Process not Found 700 Process not Found 700 Process not Found 700 Process not Found 700 Process not Found 700 Process not Found 700 Process not Found 700 Process not Found 700 Process not Found 700 Process not Found 700 Process not Found 700 Process not Found 700 Process not Found 700 Process not Found 700 Process not Found 700 Process not Found 700 Process not Found 700 Process not Found 700 Process not Found 700 Process not Found 700 Process not Found 700 Process not Found 700 Process not Found - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 700 Process not Found - Suspicious behavior: MapViewOfSection 2 IoCs
pid Process 2268 file.exe 3924 wtdjgva - Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeShutdownPrivilege 700 Process not Found Token: SeCreatePagefilePrivilege 700 Process not Found - Suspicious use of WriteProcessMemory 12 IoCs
description pid Process procid_target PID 2220 wrote to memory of 2268 2220 file.exe 80 PID 2220 wrote to memory of 2268 2220 file.exe 80 PID 2220 wrote to memory of 2268 2220 file.exe 80 PID 2220 wrote to memory of 2268 2220 file.exe 80 PID 2220 wrote to memory of 2268 2220 file.exe 80 PID 2220 wrote to memory of 2268 2220 file.exe 80 PID 1276 wrote to memory of 3924 1276 wtdjgva 89 PID 1276 wrote to memory of 3924 1276 wtdjgva 89 PID 1276 wrote to memory of 3924 1276 wtdjgva 89 PID 1276 wrote to memory of 3924 1276 wtdjgva 89 PID 1276 wrote to memory of 3924 1276 wtdjgva 89 PID 1276 wrote to memory of 3924 1276 wtdjgva 89
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:2220 -
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:2268
-
-
C:\Users\Admin\AppData\Roaming\wtdjgvaC:\Users\Admin\AppData\Roaming\wtdjgva1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1276 -
C:\Users\Admin\AppData\Roaming\wtdjgvaC:\Users\Admin\AppData\Roaming\wtdjgva2⤵
- Executes dropped EXE
- Checks SCSI registry key(s)
- Suspicious behavior: MapViewOfSection
PID:3924
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Roaming\wtdjgva
- Size 311KB
- SHA256 bf5deb42e439e5fc1e2117994bdb6483ebc724fabfeebede12293a325a91cfc7
- MD5 d7d7655f0a47063ef00c99486713406f
- SHA1 954da0c4e4a7e463e85d8d62a201d7be000c56bf
- SHA512 bbddc0a41697d999554f0a2a6743dcbf92ffb690a7ecfa785e3421bf3eaa86c27a4fef9e1ebabcf8b453bf19416d5b3db478ab2216900c11b690da34767e11ee
- SSDEEP 3072:I4XMVLjlJ75ks54DTm4XUJaZmztZdHNfS6NeGEpHTp+dPOK5twsR9wVCaSzdeO:RULjnOhHdiEmzbpNfS+dWKQNor
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Roaming\wtdjgva
- Size 311KB
- SHA256 bf5deb42e439e5fc1e2117994bdb6483ebc724fabfeebede12293a325a91cfc7
- MD5 d7d7655f0a47063ef00c99486713406f
- SHA1 954da0c4e4a7e463e85d8d62a201d7be000c56bf
- SHA512 bbddc0a41697d999554f0a2a6743dcbf92ffb690a7ecfa785e3421bf3eaa86c27a4fef9e1ebabcf8b453bf19416d5b3db478ab2216900c11b690da34767e11ee
- SSDEEP 3072:I4XMVLjlJ75ks54DTm4XUJaZmztZdHNfS6NeGEpHTp+dPOK5twsR9wVCaSzdeO:RULjnOhHdiEmzbpNfS+dWKQNor
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Roaming\wtdjgva
- Size 311KB
- SHA256 bf5deb42e439e5fc1e2117994bdb6483ebc724fabfeebede12293a325a91cfc7
- MD5 d7d7655f0a47063ef00c99486713406f
- SHA1 954da0c4e4a7e463e85d8d62a201d7be000c56bf
- SHA512 bbddc0a41697d999554f0a2a6743dcbf92ffb690a7ecfa785e3421bf3eaa86c27a4fef9e1ebabcf8b453bf19416d5b3db478ab2216900c11b690da34767e11ee
- SSDEEP 3072:I4XMVLjlJ75ks54DTm4XUJaZmztZdHNfS6NeGEpHTp+dPOK5twsR9wVCaSzdeO:RULjnOhHdiEmzbpNfS+dWKQNor
- MD5 SHA1 SHA512 SSDEEP