smokeloader | 3a7e2c38496116c8ae8bb719405111b77e7dfdf7399d8550b4dec522a601fac2

Analysis

max time kernel
150s
max time network
54s
platform
windows10-1703_x64
resource
win10-20220901-en
resource tags

arch:x64arch:x86image:win10-20220901-enlocale:en-usos:windows10-1703-x64system
submitted
03/02/2023, 13:20

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General

Target

3a7e2c38496116c8ae8bb719405111b77e7dfdf7399d8550b4dec522a601fac2.exe
Size

192KB
MD5

56bdc23d86e6770e67c505f36951f86d
SHA1

c66da8b54d71e667b486d1d48d3a52600f1d8a56
SHA256

3a7e2c38496116c8ae8bb719405111b77e7dfdf7399d8550b4dec522a601fac2
SHA512

19dbba701f7b3f6dd14de5d4fe98989903a2ed7e813cc5542cd460e628aa9fe0bab5ea644787c23d7fc2eff80e35df21f07a7ee56d39dc04e45a737c1c44be26
SSDEEP

3072:6WLPGXwMqLoGg/AsWle5Tt4D2kokJljvZ3TwTtRkTwVty7B+9Ym:6W0qL7gYsJE2knGTtOTI6BcYm

Score

10^/10

smokeloader backdoor trojan

Malware Config

Signatures

Detects Smokeloader packer 5 IoCs

resource	yara_rule
behavioral1/memory/2656-145-0x0000000000710000-0x0000000000719000-memory.dmp	family_smokeloader
behavioral1/memory/4120-149-0x0000000000400000-0x0000000000409000-memory.dmp	family_smokeloader
behavioral1/memory/4120-150-0x0000000000402DD8-mapping.dmp	family_smokeloader
behavioral1/memory/4120-161-0x0000000000400000-0x0000000000409000-memory.dmp	family_smokeloader
behavioral1/memory/4120-182-0x0000000000400000-0x0000000000409000-memory.dmp	family_smokeloader

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

Deletes itself 1 IoCs

pid	Process
2412	Process not Found

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2656 set thread context of 4120	2656	3a7e2c38496116c8ae8bb719405111b77e7dfdf7399d8550b4dec522a601fac2.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	3a7e2c38496116c8ae8bb719405111b77e7dfdf7399d8550b4dec522a601fac2.exe
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	3a7e2c38496116c8ae8bb719405111b77e7dfdf7399d8550b4dec522a601fac2.exe
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	3a7e2c38496116c8ae8bb719405111b77e7dfdf7399d8550b4dec522a601fac2.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
4120	3a7e2c38496116c8ae8bb719405111b77e7dfdf7399d8550b4dec522a601fac2.exe
4120	3a7e2c38496116c8ae8bb719405111b77e7dfdf7399d8550b4dec522a601fac2.exe
2412	Process not Found
2412	Process not Found
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2412	Process not Found

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2412	Process not Found

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
4120	3a7e2c38496116c8ae8bb719405111b77e7dfdf7399d8550b4dec522a601fac2.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2412	Process not Found

Suspicious use of SendNotifyMessage 1 IoCs

pid	Process
2412	Process not Found

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2656 wrote to memory of 4120	2656	3a7e2c38496116c8ae8bb719405111b77e7dfdf7399d8550b4dec522a601fac2.exe	66
PID 2656 wrote to memory of 4120	2656	3a7e2c38496116c8ae8bb719405111b77e7dfdf7399d8550b4dec522a601fac2.exe	66
PID 2656 wrote to memory of 4120	2656	3a7e2c38496116c8ae8bb719405111b77e7dfdf7399d8550b4dec522a601fac2.exe	66
PID 2656 wrote to memory of 4120	2656	3a7e2c38496116c8ae8bb719405111b77e7dfdf7399d8550b4dec522a601fac2.exe	66
PID 2656 wrote to memory of 4120	2656	3a7e2c38496116c8ae8bb719405111b77e7dfdf7399d8550b4dec522a601fac2.exe	66
PID 2656 wrote to memory of 4120	2656	3a7e2c38496116c8ae8bb719405111b77e7dfdf7399d8550b4dec522a601fac2.exe	66

C:\Users\Admin\AppData\Local\Temp\3a7e2c38496116c8ae8bb719405111b77e7dfdf7399d8550b4dec522a601fac2.exe
"C:\Users\Admin\AppData\Local\Temp\3a7e2c38496116c8ae8bb719405111b77e7dfdf7399d8550b4dec522a601fac2.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2656
- C:\Users\Admin\AppData\Local\Temp\3a7e2c38496116c8ae8bb719405111b77e7dfdf7399d8550b4dec522a601fac2.exe
  "C:\Users\Admin\AppData\Local\Temp\3a7e2c38496116c8ae8bb719405111b77e7dfdf7399d8550b4dec522a601fac2.exe"
  2⤵
  - Checks SCSI registry key(s)
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  PID:4120

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/2656-152-0x0000000000766000-0x0000000000779000-memory.dmp

Filesize
76KB

Download
memory/2656-123-0x0000000077560000-0x00000000776EE000-memory.dmp

Filesize
1.6MB

Download
memory/2656-122-0x0000000077560000-0x00000000776EE000-memory.dmp

Filesize
1.6MB

Download
memory/2656-124-0x0000000077560000-0x00000000776EE000-memory.dmp

Filesize
1.6MB

Download
memory/2656-121-0x0000000077560000-0x00000000776EE000-memory.dmp

Filesize
1.6MB

Download
memory/2656-126-0x0000000077560000-0x00000000776EE000-memory.dmp

Filesize
1.6MB

Download
memory/2656-125-0x0000000077560000-0x00000000776EE000-memory.dmp

Filesize
1.6MB

Download
memory/2656-127-0x0000000077560000-0x00000000776EE000-memory.dmp

Filesize
1.6MB

Download
memory/2656-131-0x0000000077560000-0x00000000776EE000-memory.dmp

Filesize
1.6MB

Download
memory/2656-132-0x0000000077560000-0x00000000776EE000-memory.dmp

Filesize
1.6MB

Download
memory/2656-133-0x0000000077560000-0x00000000776EE000-memory.dmp

Filesize
1.6MB

Download
memory/2656-134-0x0000000077560000-0x00000000776EE000-memory.dmp

Filesize
1.6MB

Download
memory/2656-130-0x0000000077560000-0x00000000776EE000-memory.dmp

Filesize
1.6MB

Download
memory/2656-129-0x0000000077560000-0x00000000776EE000-memory.dmp

Filesize
1.6MB

Download
memory/2656-128-0x0000000077560000-0x00000000776EE000-memory.dmp

Filesize
1.6MB

Download
memory/2656-135-0x0000000077560000-0x00000000776EE000-memory.dmp

Filesize
1.6MB

Download
memory/2656-136-0x0000000077560000-0x00000000776EE000-memory.dmp

Filesize
1.6MB

Download
memory/2656-137-0x0000000077560000-0x00000000776EE000-memory.dmp

Filesize
1.6MB

Download
memory/2656-138-0x0000000077560000-0x00000000776EE000-memory.dmp

Filesize
1.6MB

Download
memory/2656-139-0x0000000077560000-0x00000000776EE000-memory.dmp

Filesize
1.6MB

Download
memory/2656-140-0x0000000077560000-0x00000000776EE000-memory.dmp

Filesize
1.6MB

Download
memory/2656-142-0x0000000077560000-0x00000000776EE000-memory.dmp

Filesize
1.6MB

Download
memory/2656-143-0x0000000000766000-0x0000000000779000-memory.dmp

Filesize
76KB

Download
memory/2656-145-0x0000000000710000-0x0000000000719000-memory.dmp

Filesize
36KB

Download
memory/2656-144-0x0000000077560000-0x00000000776EE000-memory.dmp

Filesize
1.6MB

Download
memory/2656-141-0x0000000077560000-0x00000000776EE000-memory.dmp

Filesize
1.6MB

Download
memory/2656-146-0x0000000077560000-0x00000000776EE000-memory.dmp

Filesize
1.6MB

Download
memory/2656-147-0x0000000077560000-0x00000000776EE000-memory.dmp

Filesize
1.6MB

Download
memory/2656-148-0x0000000077560000-0x00000000776EE000-memory.dmp

Filesize
1.6MB

Download
memory/2656-120-0x0000000077560000-0x00000000776EE000-memory.dmp

Filesize
1.6MB

Download
memory/4120-149-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/4120-167-0x0000000077560000-0x00000000776EE000-memory.dmp

Filesize
1.6MB

Download
memory/4120-153-0x0000000077560000-0x00000000776EE000-memory.dmp

Filesize
1.6MB

Download
memory/4120-151-0x0000000077560000-0x00000000776EE000-memory.dmp

Filesize
1.6MB

Download
memory/4120-154-0x0000000077560000-0x00000000776EE000-memory.dmp

Filesize
1.6MB

Download
memory/4120-155-0x0000000077560000-0x00000000776EE000-memory.dmp

Filesize
1.6MB

Download
memory/4120-157-0x0000000077560000-0x00000000776EE000-memory.dmp

Filesize
1.6MB

Download
memory/4120-156-0x0000000077560000-0x00000000776EE000-memory.dmp

Filesize
1.6MB

Download
memory/4120-158-0x0000000077560000-0x00000000776EE000-memory.dmp

Filesize
1.6MB

Download
memory/4120-159-0x0000000077560000-0x00000000776EE000-memory.dmp

Filesize
1.6MB

Download
memory/4120-160-0x0000000077560000-0x00000000776EE000-memory.dmp

Filesize
1.6MB

Download
memory/4120-161-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/4120-162-0x0000000077560000-0x00000000776EE000-memory.dmp

Filesize
1.6MB

Download
memory/4120-163-0x0000000077560000-0x00000000776EE000-memory.dmp

Filesize
1.6MB

Download
memory/4120-165-0x0000000077560000-0x00000000776EE000-memory.dmp

Filesize
1.6MB

Download
memory/4120-164-0x0000000077560000-0x00000000776EE000-memory.dmp

Filesize
1.6MB

Download
memory/4120-166-0x0000000077560000-0x00000000776EE000-memory.dmp

Filesize
1.6MB

Download
memory/4120-168-0x0000000077560000-0x00000000776EE000-memory.dmp

Filesize
1.6MB

Download
memory/4120-169-0x0000000077560000-0x00000000776EE000-memory.dmp

Filesize
1.6MB

Download
memory/4120-170-0x0000000077560000-0x00000000776EE000-memory.dmp

Filesize
1.6MB

Download
memory/4120-171-0x0000000077560000-0x00000000776EE000-memory.dmp

Filesize
1.6MB

Download
memory/4120-172-0x0000000077560000-0x00000000776EE000-memory.dmp

Filesize
1.6MB

Download
memory/4120-173-0x0000000077560000-0x00000000776EE000-memory.dmp

Filesize
1.6MB

Download
memory/4120-174-0x0000000077560000-0x00000000776EE000-memory.dmp

Filesize
1.6MB

Download
memory/4120-176-0x0000000077560000-0x00000000776EE000-memory.dmp

Filesize
1.6MB

Download
memory/4120-175-0x0000000077560000-0x00000000776EE000-memory.dmp

Filesize
1.6MB

Download
memory/4120-177-0x0000000077560000-0x00000000776EE000-memory.dmp

Filesize
1.6MB

Download
memory/4120-178-0x0000000077560000-0x00000000776EE000-memory.dmp

Filesize
1.6MB

Download
memory/4120-179-0x0000000077560000-0x00000000776EE000-memory.dmp

Filesize
1.6MB

Download
memory/4120-180-0x0000000077560000-0x00000000776EE000-memory.dmp

Filesize
1.6MB

Download
memory/4120-181-0x0000000077560000-0x00000000776EE000-memory.dmp

Filesize
1.6MB

Download
memory/4120-182-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download