smokeloader | 5597dbb4b4d83b9cb7927bf58f1dd8e983589e8709c908c462c23a53db2987de

Analysis

max time kernel
150s
max time network
145s
platform
windows10-2004_x64
resource
win10v2004-20221111-en
resource tags

arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
submitted
25-01-2023 11:34

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General

Target

file.exe
Size

341KB
MD5

33c79a1820ad98b718ea1e48f201b0e8
SHA1

4a6d33fa4ab829a07c59bf0f1451f84748e7d400
SHA256

5597dbb4b4d83b9cb7927bf58f1dd8e983589e8709c908c462c23a53db2987de
SHA512

a94cb2ae61f443f31f336a27db1a15e823da0021104aff49db2b7e05ec309dbf8da39ec8dadeae77d8669e42bf5ac95ecbd5cd6a2e4f4d33883c395d73be7e4e
SSDEEP

6144:PLAnew6Yy3XVWOEdqCcNjSOjq7VWRFBMolz90bVivVm:PcnB6YAXYIw7VWR5lzxv0

Score

10^/10

smokeloader backdoor trojan

Malware Config

Signatures

Detects Smokeloader packer 4 IoCs

Processes:

resource	yara_rule
behavioral2/memory/1436-133-0x0000000000400000-0x0000000000409000-memory.dmp	family_smokeloader
behavioral2/memory/3444-135-0x0000000002190000-0x0000000002199000-memory.dmp	family_smokeloader
behavioral2/memory/1436-136-0x0000000000400000-0x0000000000409000-memory.dmp	family_smokeloader
behavioral2/memory/1436-137-0x0000000000400000-0x0000000000409000-memory.dmp	family_smokeloader

SmokeLoader
Modular backdoor trojan in use since 2014.
trojan backdoor smokeloader
Suspicious use of SetThreadContext 1 IoCs

Processes:

file.exe

description pid process target process

PID 3444 set thread context of 1436 3444 file.exe file.exe

description	pid	process	target process
PID 3444 set thread context of 1436	3444	file.exe	file.exe

Checks SCSI registry key(s) 3 TTPs 3 IoCs

SCSI information is often read in order to detect sandboxing environments.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

Processes:

file.exe

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

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

file.exe

pid	process
1436	file.exe
1436	file.exe
676
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Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

pid process

676
Suspicious behavior: MapViewOfSection 1 IoCs

Processes:

file.exe

pid process

1436 file.exe

pid	process
676

Suspicious use of AdjustPrivilegeToken 12 IoCs

Processes:

description	pid	process
Token: SeShutdownPrivilege	676
Token: SeCreatePagefilePrivilege	676
Token: SeShutdownPrivilege	676
Token: SeCreatePagefilePrivilege	676
Token: SeShutdownPrivilege	676
Token: SeCreatePagefilePrivilege	676
Token: SeShutdownPrivilege	676
Token: SeCreatePagefilePrivilege	676
Token: SeShutdownPrivilege	676
Token: SeCreatePagefilePrivilege	676
Token: SeShutdownPrivilege	676
Token: SeCreatePagefilePrivilege	676

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

file.exe

description	pid	process	target process
PID 3444 wrote to memory of 1436	3444	file.exe	file.exe
PID 3444 wrote to memory of 1436	3444	file.exe	file.exe
PID 3444 wrote to memory of 1436	3444	file.exe	file.exe
PID 3444 wrote to memory of 1436	3444	file.exe	file.exe
PID 3444 wrote to memory of 1436	3444	file.exe	file.exe
PID 3444 wrote to memory of 1436	3444	file.exe	file.exe

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:3444

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:1436

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/676-173-0x00000000033B0000-0x00000000033C0000-memory.dmp

Filesize
64KB

Download
memory/676-178-0x00000000033B0000-0x00000000033C0000-memory.dmp

Filesize
64KB

Download
memory/676-140-0x00000000033B0000-0x00000000033C0000-memory.dmp

Filesize
64KB

Download
memory/676-174-0x00000000033B0000-0x00000000033C0000-memory.dmp

Filesize
64KB

Download
memory/676-141-0x00000000033B0000-0x00000000033C0000-memory.dmp

Filesize
64KB

Download
memory/676-138-0x00000000033B0000-0x00000000033C0000-memory.dmp

Filesize
64KB

Download
memory/676-143-0x00000000033B0000-0x00000000033C0000-memory.dmp

Filesize
64KB

Download
memory/676-144-0x00000000033B0000-0x00000000033C0000-memory.dmp

Filesize
64KB

Download
memory/676-145-0x00000000033B0000-0x00000000033C0000-memory.dmp

Filesize
64KB

Download
memory/676-146-0x00000000033B0000-0x00000000033C0000-memory.dmp

Filesize
64KB

Download
memory/676-147-0x00000000033B0000-0x00000000033C0000-memory.dmp

Filesize
64KB

Download
memory/676-148-0x00000000033B0000-0x00000000033C0000-memory.dmp

Filesize
64KB

Download
memory/676-149-0x00000000033B0000-0x00000000033C0000-memory.dmp

Filesize
64KB

Download
memory/676-150-0x00000000033B0000-0x00000000033C0000-memory.dmp

Filesize
64KB

Download
memory/676-151-0x00000000033B0000-0x00000000033C0000-memory.dmp

Filesize
64KB

Download
memory/676-152-0x00000000033B0000-0x00000000033C0000-memory.dmp

Filesize
64KB

Download
memory/676-153-0x00000000033B0000-0x00000000033C0000-memory.dmp

Filesize
64KB

Download
memory/676-154-0x00000000033B0000-0x00000000033C0000-memory.dmp

Filesize
64KB

Download
memory/676-155-0x00000000033C0000-0x00000000033D0000-memory.dmp

Filesize
64KB

Download
memory/676-156-0x00000000086E0000-0x00000000086F0000-memory.dmp

Filesize
64KB

Download
memory/676-157-0x00000000086E0000-0x00000000086F0000-memory.dmp

Filesize
64KB

Download
memory/676-158-0x00000000086E0000-0x00000000086F0000-memory.dmp

Filesize
64KB

Download
memory/676-159-0x00000000086E0000-0x00000000086F0000-memory.dmp

Filesize
64KB

Download
memory/676-160-0x00000000086E0000-0x00000000086F0000-memory.dmp

Filesize
64KB

Download
memory/676-161-0x00000000086E0000-0x00000000086F0000-memory.dmp

Filesize
64KB

Download
memory/676-162-0x00000000033B0000-0x00000000033C0000-memory.dmp

Filesize
64KB

Download
memory/676-163-0x00000000033B0000-0x00000000033C0000-memory.dmp

Filesize
64KB

Download
memory/676-164-0x00000000033B0000-0x00000000033C0000-memory.dmp

Filesize
64KB

Download
memory/676-165-0x00000000033B0000-0x00000000033C0000-memory.dmp

Filesize
64KB

Download
memory/676-166-0x00000000033B0000-0x00000000033C0000-memory.dmp

Filesize
64KB

Download
memory/676-167-0x00000000033B0000-0x00000000033C0000-memory.dmp

Filesize
64KB

Download
memory/676-168-0x00000000033B0000-0x00000000033C0000-memory.dmp

Filesize
64KB

Download
memory/676-169-0x00000000033B0000-0x00000000033C0000-memory.dmp

Filesize
64KB

Download
memory/676-170-0x00000000033B0000-0x00000000033C0000-memory.dmp

Filesize
64KB

Download
memory/676-171-0x00000000033B0000-0x00000000033C0000-memory.dmp

Filesize
64KB

Download
memory/676-172-0x00000000033B0000-0x00000000033C0000-memory.dmp

Filesize
64KB

Download
memory/676-142-0x00000000033B0000-0x00000000033C0000-memory.dmp

Filesize
64KB

Download
memory/676-204-0x0000000003200000-0x0000000003210000-memory.dmp

Filesize
64KB

Download
memory/676-139-0x00000000033B0000-0x00000000033C0000-memory.dmp

Filesize
64KB

Download
memory/676-176-0x00000000033B0000-0x00000000033C0000-memory.dmp

Filesize
64KB

Download
memory/676-177-0x00000000033B0000-0x00000000033C0000-memory.dmp

Filesize
64KB

Download
memory/676-175-0x00000000033B0000-0x00000000033C0000-memory.dmp

Filesize
64KB

Download
memory/676-179-0x0000000001270000-0x0000000001280000-memory.dmp

Filesize
64KB

Download
memory/676-180-0x0000000003200000-0x0000000003210000-memory.dmp

Filesize
64KB

Download
memory/676-181-0x0000000003200000-0x0000000003210000-memory.dmp

Filesize
64KB

Download
memory/676-182-0x0000000001270000-0x0000000001280000-memory.dmp

Filesize
64KB

Download
memory/676-183-0x0000000003200000-0x0000000003210000-memory.dmp

Filesize
64KB

Download
memory/676-184-0x0000000003200000-0x0000000003210000-memory.dmp

Filesize
64KB

Download
memory/676-185-0x00000000033B0000-0x00000000033C0000-memory.dmp

Filesize
64KB

Download
memory/676-186-0x00000000033B0000-0x00000000033C0000-memory.dmp

Filesize
64KB

Download
memory/676-187-0x00000000033B0000-0x00000000033C0000-memory.dmp

Filesize
64KB

Download
memory/676-188-0x00000000033B0000-0x00000000033C0000-memory.dmp

Filesize
64KB

Download
memory/676-189-0x00000000033B0000-0x00000000033C0000-memory.dmp

Filesize
64KB

Download
memory/676-190-0x00000000033B0000-0x00000000033C0000-memory.dmp

Filesize
64KB

Download
memory/676-191-0x00000000033B0000-0x00000000033C0000-memory.dmp

Filesize
64KB

Download
memory/676-193-0x00000000033B0000-0x00000000033C0000-memory.dmp

Filesize
64KB

Download
memory/676-192-0x00000000033B0000-0x00000000033C0000-memory.dmp

Filesize
64KB

Download
memory/676-194-0x00000000033B0000-0x00000000033C0000-memory.dmp

Filesize
64KB

Download
memory/676-195-0x00000000033B0000-0x00000000033C0000-memory.dmp

Filesize
64KB

Download
memory/676-196-0x00000000033B0000-0x00000000033C0000-memory.dmp

Filesize
64KB

Download
memory/676-197-0x00000000033B0000-0x00000000033C0000-memory.dmp

Filesize
64KB

Download
memory/676-198-0x00000000033B0000-0x00000000033C0000-memory.dmp

Filesize
64KB

Download
memory/676-199-0x00000000033B0000-0x00000000033C0000-memory.dmp

Filesize
64KB

Download
memory/676-200-0x00000000033B0000-0x00000000033C0000-memory.dmp

Filesize
64KB

Download
memory/676-201-0x00000000033B0000-0x00000000033C0000-memory.dmp

Filesize
64KB

Download
memory/676-202-0x00000000012A0000-0x00000000012B0000-memory.dmp

Filesize
64KB

Download
memory/676-203-0x0000000003200000-0x0000000003210000-memory.dmp

Filesize
64KB

Download
memory/1436-136-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/1436-133-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/1436-132-0x0000000000000000-mapping.dmp

Download
memory/1436-137-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/3444-134-0x000000000053E000-0x0000000000553000-memory.dmp

Filesize
84KB

Download
memory/3444-135-0x0000000002190000-0x0000000002199000-memory.dmp

Filesize
36KB

Download