smokeloader | 95ebd4d8c7a834d2dcc234af372d71285fd7e79f68ad661f3e01f9a779c3a3e7

Analysis

max time kernel
178s
max time network
216s
platform
windows10-2004_x64
resource
win10v2004-20221111-en
resource tags

arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
submitted
06-12-2022 04:46

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General

Target

file.exe
Size

273KB
MD5

0d4a44c4df75695dc1c0eb6bed88df15
SHA1

3cbf13a1c15a7523eee7c1461ce81b55680b6cd8
SHA256

95ebd4d8c7a834d2dcc234af372d71285fd7e79f68ad661f3e01f9a779c3a3e7
SHA512

aba9b4401e6f867cd09f6faa4f81cfc8f17bc49c207e7f764544787a6091876cbb47fbee6a4c976baa1a420e19fe097008e748a42a9cf487b74eb58b8eb0da47
SSDEEP

3072:/5XVB8YBPGxYMUsy5rWR5Xuk/Fw352j709FhOioDdnfIiVRvJTcpA4YgV2qs64j:/dKUsy5x32ihnoD1IIDcm0VS

Score

10^/10

smokeloader backdoor trojan

Malware Config

Signatures

Detects Smokeloader packer 4 IoCs

Processes:

resource	yara_rule
behavioral2/memory/480-133-0x00000000004E0000-0x00000000004E9000-memory.dmp	family_smokeloader
behavioral2/memory/3540-136-0x0000000000400000-0x0000000000409000-memory.dmp	family_smokeloader
behavioral2/memory/3540-138-0x0000000000400000-0x0000000000409000-memory.dmp	family_smokeloader
behavioral2/memory/3540-139-0x0000000000400000-0x0000000000409000-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 480 set thread context of 3540 480 file.exe file.exe

description	pid	process	target process
PID 480 set thread context of 3540	480	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
3540	file.exe
3540	file.exe
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Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

pid process

388
Suspicious behavior: MapViewOfSection 1 IoCs

Processes:

file.exe

pid process

3540 file.exe

pid	process
388

Suspicious use of AdjustPrivilegeToken 8 IoCs

Processes:

description	pid	process
Token: SeShutdownPrivilege	388
Token: SeCreatePagefilePrivilege	388
Token: SeShutdownPrivilege	388
Token: SeCreatePagefilePrivilege	388
Token: SeShutdownPrivilege	388
Token: SeCreatePagefilePrivilege	388
Token: SeShutdownPrivilege	388
Token: SeCreatePagefilePrivilege	388

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

file.exe

description	pid	process	target process
PID 480 wrote to memory of 3540	480	file.exe	file.exe
PID 480 wrote to memory of 3540	480	file.exe	file.exe
PID 480 wrote to memory of 3540	480	file.exe	file.exe
PID 480 wrote to memory of 3540	480	file.exe	file.exe
PID 480 wrote to memory of 3540	480	file.exe	file.exe
PID 480 wrote to memory of 3540	480	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:480

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:3540

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/388-144-0x0000000002290000-0x00000000022A0000-memory.dmp

Filesize
64KB

Download
memory/388-145-0x0000000002290000-0x00000000022A0000-memory.dmp

Filesize
64KB

Download
memory/388-140-0x0000000000520000-0x0000000000530000-memory.dmp

Filesize
64KB

Download
memory/388-141-0x0000000002290000-0x00000000022A0000-memory.dmp

Filesize
64KB

Download
memory/388-149-0x0000000002290000-0x00000000022A0000-memory.dmp

Filesize
64KB

Download
memory/388-148-0x0000000002290000-0x00000000022A0000-memory.dmp

Filesize
64KB

Download
memory/388-147-0x0000000000520000-0x0000000000530000-memory.dmp

Filesize
64KB

Download
memory/388-146-0x0000000002290000-0x00000000022A0000-memory.dmp

Filesize
64KB

Download
memory/388-142-0x0000000002290000-0x00000000022A0000-memory.dmp

Filesize
64KB

Download
memory/388-150-0x0000000002290000-0x00000000022A0000-memory.dmp

Filesize
64KB

Download
memory/388-143-0x0000000002290000-0x00000000022A0000-memory.dmp

Filesize
64KB

Download
memory/480-134-0x0000000000639000-0x000000000064A000-memory.dmp

Filesize
68KB

Download
memory/480-132-0x0000000000639000-0x000000000064A000-memory.dmp

Filesize
68KB

Download
memory/480-133-0x00000000004E0000-0x00000000004E9000-memory.dmp

Filesize
36KB

Download
memory/480-137-0x0000000000639000-0x000000000064A000-memory.dmp

Filesize
68KB

Download
memory/3540-139-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/3540-138-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/3540-136-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/3540-135-0x0000000000000000-mapping.dmp

Download