Analysis
- max time kernel
150s - max time network
113s - platform
windows10-2004_x64 - resource
win10v2004-20230220-en - resource tags
arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system - submitted
29/03/2023, 09:38
Static task
static1
Behavioral task
behavioral1
Sample
file.exe
Resource
win7-20230220-en
windows7-x64
7 signatures
150 seconds
Behavioral task
behavioral2
Sample
file.exe
Resource
win10v2004-20230220-en
windows10-2004-x64
10 signatures
150 seconds
General
- Target file.exe
- Size 245KB
- Sample230329-ll2pfsfg25
- SHA256 12e76450eae37c96bc6ec0826ab19b375b66109d4b4e6d89beea5cd8d370d9c1
- MD5 47d99b19db67e143cc9267529c9ba642
- SHA1 7f880bee9f2e720c764c05f4006739a6b55f969b
- SHA512 c759c51661350d4da25c4cfe2fb7af312a3e0da8bb0ed0d5cdc978eba883b7deccf3bb858a7d94b707732a0fa2df18edb0d8674202601f94be59e4812d66a45d
- SSDEEP 3072:9IvZcg60rvLOi1J4OQ+Syf8RUnTmxrmDRZhuMZQmDVX5el/vzFQ8:9qZd/vLOVOQ4ka2rm/hu1mDmJv5
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Extracted
Family
-
smokeloader
Botnet
-
lab
Extracted
Family
-
smokeloader
Version
-
2020
C2
-
http://host-file-host6.com/
-
http://host-host-file8.com/
rc4.i32
rc4.i32
Signatures
- SmokeLoader
Modular backdoor trojan in use since 2014.
- Executes dropped EXE 2 IoCs
pid Process 2216 eurvwhg 1644 eurvwhg - Suspicious use of SetThreadContext 2 IoCs
description pid Process procid_target PID 4736 set thread context of 3344 4736 file.exe 86 PID 2216 set thread context of 1644 2216 eurvwhg 95 - 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 eurvwhg Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI eurvwhg Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI eurvwhg 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 3344 file.exe 3344 file.exe 3160 Process not Found 3160 Process not Found 3160 Process not Found 3160 Process not Found 3160 Process not Found 3160 Process not Found 3160 Process not Found 3160 Process not Found 3160 Process not Found 3160 Process not Found 3160 Process not Found 3160 Process not Found 3160 Process not Found 3160 Process not Found 3160 Process not Found 3160 Process not Found 3160 Process not Found 3160 Process not Found 3160 Process not Found 3160 Process not Found 3160 Process not Found 3160 Process not Found 3160 Process not Found 3160 Process not Found 3160 Process not Found 3160 Process not Found 3160 Process not Found 3160 Process not Found 3160 Process not Found 3160 Process not Found 3160 Process not Found 3160 Process not Found 3160 Process not Found 3160 Process not Found 3160 Process not Found 3160 Process not Found 3160 Process not Found 3160 Process not Found 3160 Process not Found 3160 Process not Found 3160 Process not Found 3160 Process not Found 3160 Process not Found 3160 Process not Found 3160 Process not Found 3160 Process not Found 3160 Process not Found 3160 Process not Found 3160 Process not Found 3160 Process not Found 3160 Process not Found 3160 Process not Found 3160 Process not Found 3160 Process not Found 3160 Process not Found 3160 Process not Found 3160 Process not Found 3160 Process not Found 3160 Process not Found 3160 Process not Found 3160 Process not Found 3160 Process not Found - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 3160 Process not Found - Suspicious behavior: MapViewOfSection 2 IoCs
pid Process 3344 file.exe 1644 eurvwhg - Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeShutdownPrivilege 3160 Process not Found Token: SeCreatePagefilePrivilege 3160 Process not Found - Suspicious use of WriteProcessMemory 12 IoCs
description pid Process procid_target PID 4736 wrote to memory of 3344 4736 file.exe 86 PID 4736 wrote to memory of 3344 4736 file.exe 86 PID 4736 wrote to memory of 3344 4736 file.exe 86 PID 4736 wrote to memory of 3344 4736 file.exe 86 PID 4736 wrote to memory of 3344 4736 file.exe 86 PID 4736 wrote to memory of 3344 4736 file.exe 86 PID 2216 wrote to memory of 1644 2216 eurvwhg 95 PID 2216 wrote to memory of 1644 2216 eurvwhg 95 PID 2216 wrote to memory of 1644 2216 eurvwhg 95 PID 2216 wrote to memory of 1644 2216 eurvwhg 95 PID 2216 wrote to memory of 1644 2216 eurvwhg 95 PID 2216 wrote to memory of 1644 2216 eurvwhg 95 - Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
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:4736 -
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:3344
-
-
C:\Users\Admin\AppData\Roaming\eurvwhgC:\Users\Admin\AppData\Roaming\eurvwhg1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2216 -
C:\Users\Admin\AppData\Roaming\eurvwhgC:\Users\Admin\AppData\Roaming\eurvwhg2⤵
- Executes dropped EXE
- Checks SCSI registry key(s)
- Suspicious behavior: MapViewOfSection
PID:1644
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Roaming\eurvwhg
- Size 245KB
- SHA256 12e76450eae37c96bc6ec0826ab19b375b66109d4b4e6d89beea5cd8d370d9c1
- MD5 47d99b19db67e143cc9267529c9ba642
- SHA1 7f880bee9f2e720c764c05f4006739a6b55f969b
- SHA512 c759c51661350d4da25c4cfe2fb7af312a3e0da8bb0ed0d5cdc978eba883b7deccf3bb858a7d94b707732a0fa2df18edb0d8674202601f94be59e4812d66a45d
- SSDEEP 3072:9IvZcg60rvLOi1J4OQ+Syf8RUnTmxrmDRZhuMZQmDVX5el/vzFQ8:9qZd/vLOVOQ4ka2rm/hu1mDmJv5
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Roaming\eurvwhg
- Size 245KB
- SHA256 12e76450eae37c96bc6ec0826ab19b375b66109d4b4e6d89beea5cd8d370d9c1
- MD5 47d99b19db67e143cc9267529c9ba642
- SHA1 7f880bee9f2e720c764c05f4006739a6b55f969b
- SHA512 c759c51661350d4da25c4cfe2fb7af312a3e0da8bb0ed0d5cdc978eba883b7deccf3bb858a7d94b707732a0fa2df18edb0d8674202601f94be59e4812d66a45d
- SSDEEP 3072:9IvZcg60rvLOi1J4OQ+Syf8RUnTmxrmDRZhuMZQmDVX5el/vzFQ8:9qZd/vLOVOQ4ka2rm/hu1mDmJv5
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Roaming\eurvwhg
- Size 245KB
- SHA256 12e76450eae37c96bc6ec0826ab19b375b66109d4b4e6d89beea5cd8d370d9c1
- MD5 47d99b19db67e143cc9267529c9ba642
- SHA1 7f880bee9f2e720c764c05f4006739a6b55f969b
- SHA512 c759c51661350d4da25c4cfe2fb7af312a3e0da8bb0ed0d5cdc978eba883b7deccf3bb858a7d94b707732a0fa2df18edb0d8674202601f94be59e4812d66a45d
- SSDEEP 3072:9IvZcg60rvLOi1J4OQ+Syf8RUnTmxrmDRZhuMZQmDVX5el/vzFQ8:9qZd/vLOVOQ4ka2rm/hu1mDmJv5
- MD5 SHA1 SHA512 SSDEEP