smokeloader | b8f204e631a5a4fa4244878060cd249a63df9fbbc2ad8b8e01b0936b943cbd4a

Analysis

max time kernel
150s
max time network
147s
platform
windows10-1703_x64
resource
win10-20220901-en
resource tags

arch:x64arch:x86image:win10-20220901-enlocale:en-usos:windows10-1703-x64system
submitted
10/01/2023, 04:32

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General

Target

b8f204e631a5a4fa4244878060cd249a63df9fbbc2ad8b8e01b0936b943cbd4a.exe
Size

327KB
MD5

3ca36972593202bb097af631b2e5ddec
SHA1

31d8a1cb4d7fe1edccf3f10a97751a6c9c1062bc
SHA256

b8f204e631a5a4fa4244878060cd249a63df9fbbc2ad8b8e01b0936b943cbd4a
SHA512

0c6326f349c988047f13a8ec617e0a8dcfedd5811988c4ee0743c65a01e832140065ae3b71b7a2099310f4e6c63a1be5620821be52221a1270a368c297cfb021
SSDEEP

6144:EABZ5fwEY3NZE/AYcIsn8ZoAT2xreZ7dBA0Xzf8JY:Ek1nYdZVtznjAsrezD8

Score

10^/10

smokeloader backdoor trojan

Malware Config

Signatures

Detects Smokeloader packer 5 IoCs

resource	yara_rule
behavioral1/memory/8-150-0x0000000000400000-0x0000000000409000-memory.dmp	family_smokeloader
behavioral1/memory/8-151-0x0000000000402DD8-mapping.dmp	family_smokeloader
behavioral1/memory/4800-154-0x0000000000580000-0x0000000000589000-memory.dmp	family_smokeloader
behavioral1/memory/8-166-0x0000000000400000-0x0000000000409000-memory.dmp	family_smokeloader
behavioral1/memory/8-183-0x0000000000400000-0x0000000000409000-memory.dmp	family_smokeloader

SmokeLoader
Modular backdoor trojan in use since 2014.
trojan backdoor smokeloader

Deletes itself 1 IoCs

pid	Process
1788	Process not Found

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4800 set thread context of 8	4800	b8f204e631a5a4fa4244878060cd249a63df9fbbc2ad8b8e01b0936b943cbd4a.exe	66

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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	b8f204e631a5a4fa4244878060cd249a63df9fbbc2ad8b8e01b0936b943cbd4a.exe
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	b8f204e631a5a4fa4244878060cd249a63df9fbbc2ad8b8e01b0936b943cbd4a.exe
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	b8f204e631a5a4fa4244878060cd249a63df9fbbc2ad8b8e01b0936b943cbd4a.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
8	b8f204e631a5a4fa4244878060cd249a63df9fbbc2ad8b8e01b0936b943cbd4a.exe
8	b8f204e631a5a4fa4244878060cd249a63df9fbbc2ad8b8e01b0936b943cbd4a.exe
1788	Process not Found
1788	Process not Found
1788	Process not Found
1788	Process not Found
1788	Process not Found
1788	Process not Found
1788	Process not Found
1788	Process not Found
1788	Process not Found
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1788	Process not Found
1788	Process not Found
1788	Process not Found
1788	Process not Found
1788	Process not Found
1788	Process not Found

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1788	Process not Found

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
8	b8f204e631a5a4fa4244878060cd249a63df9fbbc2ad8b8e01b0936b943cbd4a.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4800 wrote to memory of 8	4800	b8f204e631a5a4fa4244878060cd249a63df9fbbc2ad8b8e01b0936b943cbd4a.exe	66
PID 4800 wrote to memory of 8	4800	b8f204e631a5a4fa4244878060cd249a63df9fbbc2ad8b8e01b0936b943cbd4a.exe	66
PID 4800 wrote to memory of 8	4800	b8f204e631a5a4fa4244878060cd249a63df9fbbc2ad8b8e01b0936b943cbd4a.exe	66
PID 4800 wrote to memory of 8	4800	b8f204e631a5a4fa4244878060cd249a63df9fbbc2ad8b8e01b0936b943cbd4a.exe	66
PID 4800 wrote to memory of 8	4800	b8f204e631a5a4fa4244878060cd249a63df9fbbc2ad8b8e01b0936b943cbd4a.exe	66
PID 4800 wrote to memory of 8	4800	b8f204e631a5a4fa4244878060cd249a63df9fbbc2ad8b8e01b0936b943cbd4a.exe	66

C:\Users\Admin\AppData\Local\Temp\b8f204e631a5a4fa4244878060cd249a63df9fbbc2ad8b8e01b0936b943cbd4a.exe
"C:\Users\Admin\AppData\Local\Temp\b8f204e631a5a4fa4244878060cd249a63df9fbbc2ad8b8e01b0936b943cbd4a.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4800
- C:\Users\Admin\AppData\Local\Temp\b8f204e631a5a4fa4244878060cd249a63df9fbbc2ad8b8e01b0936b943cbd4a.exe
  "C:\Users\Admin\AppData\Local\Temp\b8f204e631a5a4fa4244878060cd249a63df9fbbc2ad8b8e01b0936b943cbd4a.exe"
  2⤵
  - Checks SCSI registry key(s)
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  PID:8

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/8-168-0x0000000077530000-0x00000000776BE000-memory.dmp

Filesize
1.6MB

Download
memory/8-169-0x0000000077530000-0x00000000776BE000-memory.dmp

Filesize
1.6MB

Download
memory/8-183-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/8-182-0x0000000077530000-0x00000000776BE000-memory.dmp

Filesize
1.6MB

Download
memory/8-181-0x0000000077530000-0x00000000776BE000-memory.dmp

Filesize
1.6MB

Download
memory/8-180-0x0000000077530000-0x00000000776BE000-memory.dmp

Filesize
1.6MB

Download
memory/8-179-0x0000000077530000-0x00000000776BE000-memory.dmp

Filesize
1.6MB

Download
memory/8-178-0x0000000077530000-0x00000000776BE000-memory.dmp

Filesize
1.6MB

Download
memory/8-177-0x0000000077530000-0x00000000776BE000-memory.dmp

Filesize
1.6MB

Download
memory/8-176-0x0000000077530000-0x00000000776BE000-memory.dmp

Filesize
1.6MB

Download
memory/8-175-0x0000000077530000-0x00000000776BE000-memory.dmp

Filesize
1.6MB

Download
memory/8-174-0x0000000077530000-0x00000000776BE000-memory.dmp

Filesize
1.6MB

Download
memory/8-173-0x0000000077530000-0x00000000776BE000-memory.dmp

Filesize
1.6MB

Download
memory/8-172-0x0000000077530000-0x00000000776BE000-memory.dmp

Filesize
1.6MB

Download
memory/8-171-0x0000000077530000-0x00000000776BE000-memory.dmp

Filesize
1.6MB

Download
memory/8-170-0x0000000077530000-0x00000000776BE000-memory.dmp

Filesize
1.6MB

Download
memory/8-150-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/8-152-0x0000000077530000-0x00000000776BE000-memory.dmp

Filesize
1.6MB

Download
memory/8-167-0x0000000077530000-0x00000000776BE000-memory.dmp

Filesize
1.6MB

Download
memory/8-166-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/8-165-0x0000000077530000-0x00000000776BE000-memory.dmp

Filesize
1.6MB

Download
memory/8-164-0x0000000077530000-0x00000000776BE000-memory.dmp

Filesize
1.6MB

Download
memory/8-163-0x0000000077530000-0x00000000776BE000-memory.dmp

Filesize
1.6MB

Download
memory/8-162-0x0000000077530000-0x00000000776BE000-memory.dmp

Filesize
1.6MB

Download
memory/8-161-0x0000000077530000-0x00000000776BE000-memory.dmp

Filesize
1.6MB

Download
memory/8-159-0x0000000077530000-0x00000000776BE000-memory.dmp

Filesize
1.6MB

Download
memory/8-158-0x0000000077530000-0x00000000776BE000-memory.dmp

Filesize
1.6MB

Download
memory/8-157-0x0000000077530000-0x00000000776BE000-memory.dmp

Filesize
1.6MB

Download
memory/8-153-0x0000000077530000-0x00000000776BE000-memory.dmp

Filesize
1.6MB

Download
memory/8-156-0x0000000077530000-0x00000000776BE000-memory.dmp

Filesize
1.6MB

Download
memory/8-155-0x0000000077530000-0x00000000776BE000-memory.dmp

Filesize
1.6MB

Download
memory/8-160-0x0000000077530000-0x00000000776BE000-memory.dmp

Filesize
1.6MB

Download
memory/4800-136-0x0000000077530000-0x00000000776BE000-memory.dmp

Filesize
1.6MB

Download
memory/4800-154-0x0000000000580000-0x0000000000589000-memory.dmp

Filesize
36KB

Download
memory/4800-121-0x0000000077530000-0x00000000776BE000-memory.dmp

Filesize
1.6MB

Download
memory/4800-149-0x0000000077530000-0x00000000776BE000-memory.dmp

Filesize
1.6MB

Download
memory/4800-148-0x0000000077530000-0x00000000776BE000-memory.dmp

Filesize
1.6MB

Download
memory/4800-147-0x0000000077530000-0x00000000776BE000-memory.dmp

Filesize
1.6MB

Download
memory/4800-146-0x0000000077530000-0x00000000776BE000-memory.dmp

Filesize
1.6MB

Download
memory/4800-145-0x0000000077530000-0x00000000776BE000-memory.dmp

Filesize
1.6MB

Download
memory/4800-144-0x00000000006EB000-0x0000000000701000-memory.dmp

Filesize
88KB

Download
memory/4800-143-0x0000000077530000-0x00000000776BE000-memory.dmp

Filesize
1.6MB

Download
memory/4800-142-0x0000000077530000-0x00000000776BE000-memory.dmp

Filesize
1.6MB

Download
memory/4800-141-0x0000000077530000-0x00000000776BE000-memory.dmp

Filesize
1.6MB

Download
memory/4800-140-0x0000000077530000-0x00000000776BE000-memory.dmp

Filesize
1.6MB

Download
memory/4800-139-0x0000000077530000-0x00000000776BE000-memory.dmp

Filesize
1.6MB

Download
memory/4800-138-0x0000000077530000-0x00000000776BE000-memory.dmp

Filesize
1.6MB

Download
memory/4800-120-0x0000000077530000-0x00000000776BE000-memory.dmp

Filesize
1.6MB

Download
memory/4800-137-0x0000000077530000-0x00000000776BE000-memory.dmp

Filesize
1.6MB

Download
memory/4800-135-0x0000000077530000-0x00000000776BE000-memory.dmp

Filesize
1.6MB

Download
memory/4800-134-0x0000000077530000-0x00000000776BE000-memory.dmp

Filesize
1.6MB

Download
memory/4800-133-0x0000000077530000-0x00000000776BE000-memory.dmp

Filesize
1.6MB

Download
memory/4800-132-0x0000000077530000-0x00000000776BE000-memory.dmp

Filesize
1.6MB

Download
memory/4800-131-0x0000000077530000-0x00000000776BE000-memory.dmp

Filesize
1.6MB

Download
memory/4800-130-0x0000000077530000-0x00000000776BE000-memory.dmp

Filesize
1.6MB

Download
memory/4800-129-0x0000000077530000-0x00000000776BE000-memory.dmp

Filesize
1.6MB

Download
memory/4800-128-0x0000000077530000-0x00000000776BE000-memory.dmp

Filesize
1.6MB

Download
memory/4800-127-0x0000000077530000-0x00000000776BE000-memory.dmp

Filesize
1.6MB

Download
memory/4800-126-0x0000000077530000-0x00000000776BE000-memory.dmp

Filesize
1.6MB

Download
memory/4800-125-0x0000000077530000-0x00000000776BE000-memory.dmp

Filesize
1.6MB

Download
memory/4800-124-0x0000000077530000-0x00000000776BE000-memory.dmp

Filesize
1.6MB

Download
memory/4800-123-0x0000000077530000-0x00000000776BE000-memory.dmp

Filesize
1.6MB

Download
memory/4800-122-0x0000000077530000-0x00000000776BE000-memory.dmp

Filesize
1.6MB

Download