smokeloader | b121e8b27a8908440add2988798d1d8107c572b75ea4f60ca15da113a4011b46

Analysis

max time kernel
150s
max time network
63s
platform
windows10-1703_x64
resource
win10-20220812-en
resource tags

arch:x64arch:x86image:win10-20220812-enlocale:en-usos:windows10-1703-x64system
submitted
09/09/2022, 17:32

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General

Target

b121e8b27a8908440add2988798d1d8107c572b75ea4f60ca15da113a4011b46.exe
Size

198KB
MD5

79cba550bd259ab14d95a22768a1239a
SHA1

b4cddc0f16b590cbf10bc45874dfe5aec4232437
SHA256

b121e8b27a8908440add2988798d1d8107c572b75ea4f60ca15da113a4011b46
SHA512

aae6452d1cafb9e41814f6373f7bc0bb2f88ae12ffdae1b25bd0e0f90568579a025837ed7933c467d323159e50273da9d059e0e4615d4fe7510b80c8e958bd5b
SSDEEP

3072:cZ+lZfyLQc7qt/5OiDPxlaOLXoDYjM2fF7/xNVUmASBl5Wdx/:znEQIqu4plJoDY42F7pNVUmA/

Score

10^/10

smokeloader backdoor trojan

Malware Config

Signatures

Detects Smokeloader packer 4 IoCs

resource	yara_rule
behavioral1/memory/3744-147-0x0000000000400000-0x0000000000409000-memory.dmp	family_smokeloader
behavioral1/memory/3744-148-0x0000000000402DD8-mapping.dmp	family_smokeloader
behavioral1/memory/3744-168-0x0000000000400000-0x0000000000409000-memory.dmp	family_smokeloader
behavioral1/memory/3744-179-0x0000000000400000-0x0000000000409000-memory.dmp	family_smokeloader

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

Deletes itself 1 IoCs

pid	Process
3020	Process not Found

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2496 set thread context of 3744	2496	b121e8b27a8908440add2988798d1d8107c572b75ea4f60ca15da113a4011b46.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	b121e8b27a8908440add2988798d1d8107c572b75ea4f60ca15da113a4011b46.exe
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	b121e8b27a8908440add2988798d1d8107c572b75ea4f60ca15da113a4011b46.exe
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	b121e8b27a8908440add2988798d1d8107c572b75ea4f60ca15da113a4011b46.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
3744	b121e8b27a8908440add2988798d1d8107c572b75ea4f60ca15da113a4011b46.exe
3744	b121e8b27a8908440add2988798d1d8107c572b75ea4f60ca15da113a4011b46.exe
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Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
3020	Process not Found

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
3744	b121e8b27a8908440add2988798d1d8107c572b75ea4f60ca15da113a4011b46.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2496 wrote to memory of 3744	2496	b121e8b27a8908440add2988798d1d8107c572b75ea4f60ca15da113a4011b46.exe	66
PID 2496 wrote to memory of 3744	2496	b121e8b27a8908440add2988798d1d8107c572b75ea4f60ca15da113a4011b46.exe	66
PID 2496 wrote to memory of 3744	2496	b121e8b27a8908440add2988798d1d8107c572b75ea4f60ca15da113a4011b46.exe	66
PID 2496 wrote to memory of 3744	2496	b121e8b27a8908440add2988798d1d8107c572b75ea4f60ca15da113a4011b46.exe	66
PID 2496 wrote to memory of 3744	2496	b121e8b27a8908440add2988798d1d8107c572b75ea4f60ca15da113a4011b46.exe	66
PID 2496 wrote to memory of 3744	2496	b121e8b27a8908440add2988798d1d8107c572b75ea4f60ca15da113a4011b46.exe	66

C:\Users\Admin\AppData\Local\Temp\b121e8b27a8908440add2988798d1d8107c572b75ea4f60ca15da113a4011b46.exe
"C:\Users\Admin\AppData\Local\Temp\b121e8b27a8908440add2988798d1d8107c572b75ea4f60ca15da113a4011b46.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2496
- C:\Users\Admin\AppData\Local\Temp\b121e8b27a8908440add2988798d1d8107c572b75ea4f60ca15da113a4011b46.exe
  "C:\Users\Admin\AppData\Local\Temp\b121e8b27a8908440add2988798d1d8107c572b75ea4f60ca15da113a4011b46.exe"
  2⤵
  - Checks SCSI registry key(s)
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  PID:3744

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/2496-117-0x0000000077580000-0x000000007770E000-memory.dmp

Filesize
1.6MB

Download
memory/2496-118-0x0000000077580000-0x000000007770E000-memory.dmp

Filesize
1.6MB

Download
memory/2496-119-0x0000000077580000-0x000000007770E000-memory.dmp

Filesize
1.6MB

Download
memory/2496-120-0x0000000077580000-0x000000007770E000-memory.dmp

Filesize
1.6MB

Download
memory/2496-121-0x0000000077580000-0x000000007770E000-memory.dmp

Filesize
1.6MB

Download
memory/2496-122-0x0000000077580000-0x000000007770E000-memory.dmp

Filesize
1.6MB

Download
memory/2496-123-0x0000000077580000-0x000000007770E000-memory.dmp

Filesize
1.6MB

Download
memory/2496-124-0x0000000077580000-0x000000007770E000-memory.dmp

Filesize
1.6MB

Download
memory/2496-125-0x0000000077580000-0x000000007770E000-memory.dmp

Filesize
1.6MB

Download
memory/2496-126-0x0000000077580000-0x000000007770E000-memory.dmp

Filesize
1.6MB

Download
memory/2496-127-0x0000000077580000-0x000000007770E000-memory.dmp

Filesize
1.6MB

Download
memory/2496-128-0x0000000077580000-0x000000007770E000-memory.dmp

Filesize
1.6MB

Download
memory/2496-129-0x0000000077580000-0x000000007770E000-memory.dmp

Filesize
1.6MB

Download
memory/2496-130-0x0000000077580000-0x000000007770E000-memory.dmp

Filesize
1.6MB

Download
memory/2496-131-0x0000000077580000-0x000000007770E000-memory.dmp

Filesize
1.6MB

Download
memory/2496-132-0x0000000077580000-0x000000007770E000-memory.dmp

Filesize
1.6MB

Download
memory/2496-134-0x0000000077580000-0x000000007770E000-memory.dmp

Filesize
1.6MB

Download
memory/2496-135-0x0000000077580000-0x000000007770E000-memory.dmp

Filesize
1.6MB

Download
memory/2496-136-0x0000000077580000-0x000000007770E000-memory.dmp

Filesize
1.6MB

Download
memory/2496-137-0x0000000077580000-0x000000007770E000-memory.dmp

Filesize
1.6MB

Download
memory/2496-138-0x0000000077580000-0x000000007770E000-memory.dmp

Filesize
1.6MB

Download
memory/2496-139-0x0000000077580000-0x000000007770E000-memory.dmp

Filesize
1.6MB

Download
memory/2496-140-0x0000000077580000-0x000000007770E000-memory.dmp

Filesize
1.6MB

Download
memory/2496-141-0x0000000002B80000-0x0000000002C2E000-memory.dmp

Filesize
696KB

Download
memory/2496-143-0x0000000077580000-0x000000007770E000-memory.dmp

Filesize
1.6MB

Download
memory/2496-142-0x0000000002B80000-0x0000000002C2E000-memory.dmp

Filesize
696KB

Download
memory/2496-144-0x0000000077580000-0x000000007770E000-memory.dmp

Filesize
1.6MB

Download
memory/2496-145-0x0000000077580000-0x000000007770E000-memory.dmp

Filesize
1.6MB

Download
memory/2496-146-0x0000000077580000-0x000000007770E000-memory.dmp

Filesize
1.6MB

Download
memory/3744-147-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/3744-149-0x0000000077580000-0x000000007770E000-memory.dmp

Filesize
1.6MB

Download
memory/3744-150-0x0000000077580000-0x000000007770E000-memory.dmp

Filesize
1.6MB

Download
memory/3744-151-0x0000000077580000-0x000000007770E000-memory.dmp

Filesize
1.6MB

Download
memory/3744-152-0x0000000077580000-0x000000007770E000-memory.dmp

Filesize
1.6MB

Download
memory/3744-153-0x0000000077580000-0x000000007770E000-memory.dmp

Filesize
1.6MB

Download
memory/3744-154-0x0000000077580000-0x000000007770E000-memory.dmp

Filesize
1.6MB

Download
memory/3744-155-0x0000000077580000-0x000000007770E000-memory.dmp

Filesize
1.6MB

Download
memory/3744-156-0x0000000077580000-0x000000007770E000-memory.dmp

Filesize
1.6MB

Download
memory/3744-157-0x0000000077580000-0x000000007770E000-memory.dmp

Filesize
1.6MB

Download
memory/3744-158-0x0000000077580000-0x000000007770E000-memory.dmp

Filesize
1.6MB

Download
memory/3744-159-0x0000000077580000-0x000000007770E000-memory.dmp

Filesize
1.6MB

Download
memory/3744-160-0x0000000077580000-0x000000007770E000-memory.dmp

Filesize
1.6MB

Download
memory/3744-161-0x0000000077580000-0x000000007770E000-memory.dmp

Filesize
1.6MB

Download
memory/3744-162-0x0000000077580000-0x000000007770E000-memory.dmp

Filesize
1.6MB

Download
memory/3744-163-0x0000000077580000-0x000000007770E000-memory.dmp

Filesize
1.6MB

Download
memory/3744-164-0x0000000077580000-0x000000007770E000-memory.dmp

Filesize
1.6MB

Download
memory/3744-166-0x0000000077580000-0x000000007770E000-memory.dmp

Filesize
1.6MB

Download
memory/3744-165-0x0000000077580000-0x000000007770E000-memory.dmp

Filesize
1.6MB

Download
memory/3744-167-0x0000000077580000-0x000000007770E000-memory.dmp

Filesize
1.6MB

Download
memory/3744-168-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/3744-169-0x0000000077580000-0x000000007770E000-memory.dmp

Filesize
1.6MB

Download
memory/3744-170-0x0000000077580000-0x000000007770E000-memory.dmp

Filesize
1.6MB

Download
memory/3744-171-0x0000000077580000-0x000000007770E000-memory.dmp

Filesize
1.6MB

Download
memory/3744-172-0x0000000077580000-0x000000007770E000-memory.dmp

Filesize
1.6MB

Download
memory/3744-173-0x0000000077580000-0x000000007770E000-memory.dmp

Filesize
1.6MB

Download
memory/3744-174-0x0000000077580000-0x000000007770E000-memory.dmp

Filesize
1.6MB

Download
memory/3744-175-0x0000000077580000-0x000000007770E000-memory.dmp

Filesize
1.6MB

Download
memory/3744-176-0x0000000077580000-0x000000007770E000-memory.dmp

Filesize
1.6MB

Download
memory/3744-177-0x0000000077580000-0x000000007770E000-memory.dmp

Filesize
1.6MB

Download
memory/3744-178-0x0000000077580000-0x000000007770E000-memory.dmp

Filesize
1.6MB

Download
memory/3744-179-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download