smokeloader | 5b8b64c570e91d014d876d61c15a793eb46fe42c50f037113437c62aaea015e8

Analysis

max time kernel
155s
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
04-10-2022 23:38

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General

Target

5b8b64c570e91d014d876d61c15a793eb46fe42c50f037113437c62aaea015e8.exe
Size

265KB
MD5

e704a20dd55f35e12e7aad186f1f3bc1
SHA1

505f5f855bc92097413ccbf44b605287e8ca5aa7
SHA256

5b8b64c570e91d014d876d61c15a793eb46fe42c50f037113437c62aaea015e8
SHA512

57d0ba5688ebf831ff5ca984dadd765c8d3bba2f0670c2d3853f5ff41c667a7d515c9ab4acc6d4e7c4eb0efdafe76d3681681e1a7c8e25c56ea0dedd4a8dee26
SSDEEP

6144:8fWLwCwTJKBUf2sOG2IuzbgwuJz8GwVf:8uU3TYBUes/unnc

Score

10^/10

smokeloader backdoor trojan

Malware Config

Signatures

Detects Smokeloader packer 8 IoCs

resource	yara_rule
behavioral1/memory/2968-151-0x00000000004E0000-0x00000000004E9000-memory.dmp	family_smokeloader
behavioral1/memory/5044-148-0x0000000000402DD8-mapping.dmp	family_smokeloader
behavioral1/memory/5044-147-0x0000000000400000-0x0000000000409000-memory.dmp	family_smokeloader
behavioral1/memory/5044-170-0x0000000000400000-0x0000000000409000-memory.dmp	family_smokeloader
behavioral1/memory/5044-180-0x0000000000400000-0x0000000000409000-memory.dmp	family_smokeloader
behavioral1/memory/2700-213-0x0000000000402DD8-mapping.dmp	family_smokeloader
behavioral1/memory/2700-244-0x0000000000400000-0x0000000000409000-memory.dmp	family_smokeloader
behavioral1/memory/2700-245-0x0000000000400000-0x0000000000409000-memory.dmp	family_smokeloader

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

Executes dropped EXE 2 IoCs

pid	Process
4184	fsdrdiw
2700	fsdrdiw

Deletes itself 1 IoCs

pid	Process
2604	Process not Found

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 2968 set thread context of 5044	2968	5b8b64c570e91d014d876d61c15a793eb46fe42c50f037113437c62aaea015e8.exe	66
PID 4184 set thread context of 2700	4184	fsdrdiw	68

Checks SCSI registry key(s) 3 TTPs 6 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	5b8b64c570e91d014d876d61c15a793eb46fe42c50f037113437c62aaea015e8.exe
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	5b8b64c570e91d014d876d61c15a793eb46fe42c50f037113437c62aaea015e8.exe
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	5b8b64c570e91d014d876d61c15a793eb46fe42c50f037113437c62aaea015e8.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	fsdrdiw
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	fsdrdiw
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	fsdrdiw

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
5044	5b8b64c570e91d014d876d61c15a793eb46fe42c50f037113437c62aaea015e8.exe
5044	5b8b64c570e91d014d876d61c15a793eb46fe42c50f037113437c62aaea015e8.exe
2604	Process not Found
2604	Process not Found
2604	Process not Found
2604	Process not Found
2604	Process not Found
2604	Process not Found
2604	Process not Found
2604	Process not Found
2604	Process not Found
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2604	Process not Found
2604	Process not Found
2604	Process not Found
2604	Process not Found
2604	Process not Found

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2604	Process not Found

Suspicious behavior: MapViewOfSection 2 IoCs

pid	Process
5044	5b8b64c570e91d014d876d61c15a793eb46fe42c50f037113437c62aaea015e8.exe
2700	fsdrdiw

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	2604	Process not Found
Token: SeCreatePagefilePrivilege	2604	Process not Found

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2968 wrote to memory of 5044	2968	5b8b64c570e91d014d876d61c15a793eb46fe42c50f037113437c62aaea015e8.exe	66
PID 2968 wrote to memory of 5044	2968	5b8b64c570e91d014d876d61c15a793eb46fe42c50f037113437c62aaea015e8.exe	66
PID 2968 wrote to memory of 5044	2968	5b8b64c570e91d014d876d61c15a793eb46fe42c50f037113437c62aaea015e8.exe	66
PID 2968 wrote to memory of 5044	2968	5b8b64c570e91d014d876d61c15a793eb46fe42c50f037113437c62aaea015e8.exe	66
PID 2968 wrote to memory of 5044	2968	5b8b64c570e91d014d876d61c15a793eb46fe42c50f037113437c62aaea015e8.exe	66
PID 2968 wrote to memory of 5044	2968	5b8b64c570e91d014d876d61c15a793eb46fe42c50f037113437c62aaea015e8.exe	66
PID 4184 wrote to memory of 2700	4184	fsdrdiw	68
PID 4184 wrote to memory of 2700	4184	fsdrdiw	68
PID 4184 wrote to memory of 2700	4184	fsdrdiw	68
PID 4184 wrote to memory of 2700	4184	fsdrdiw	68
PID 4184 wrote to memory of 2700	4184	fsdrdiw	68
PID 4184 wrote to memory of 2700	4184	fsdrdiw	68

C:\Users\Admin\AppData\Local\Temp\5b8b64c570e91d014d876d61c15a793eb46fe42c50f037113437c62aaea015e8.exe
"C:\Users\Admin\AppData\Local\Temp\5b8b64c570e91d014d876d61c15a793eb46fe42c50f037113437c62aaea015e8.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2968
- C:\Users\Admin\AppData\Local\Temp\5b8b64c570e91d014d876d61c15a793eb46fe42c50f037113437c62aaea015e8.exe
  "C:\Users\Admin\AppData\Local\Temp\5b8b64c570e91d014d876d61c15a793eb46fe42c50f037113437c62aaea015e8.exe"
  2⤵
  - Checks SCSI registry key(s)
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  PID:5044

C:\Users\Admin\AppData\Roaming\fsdrdiw
C:\Users\Admin\AppData\Roaming\fsdrdiw
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4184
- C:\Users\Admin\AppData\Roaming\fsdrdiw
  C:\Users\Admin\AppData\Roaming\fsdrdiw
  2⤵
  - Executes dropped EXE
  - Checks SCSI registry key(s)
  - Suspicious behavior: MapViewOfSection
  PID:2700

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

C:\Users\Admin\AppData\Roaming\fsdrdiw

Filesize
265KB

MD5
e704a20dd55f35e12e7aad186f1f3bc1

SHA1
505f5f855bc92097413ccbf44b605287e8ca5aa7

SHA256
5b8b64c570e91d014d876d61c15a793eb46fe42c50f037113437c62aaea015e8

SHA512
57d0ba5688ebf831ff5ca984dadd765c8d3bba2f0670c2d3853f5ff41c667a7d515c9ab4acc6d4e7c4eb0efdafe76d3681681e1a7c8e25c56ea0dedd4a8dee26

Download Submit
C:\Users\Admin\AppData\Roaming\fsdrdiw

Filesize
265KB

MD5
e704a20dd55f35e12e7aad186f1f3bc1

SHA1
505f5f855bc92097413ccbf44b605287e8ca5aa7

SHA256
5b8b64c570e91d014d876d61c15a793eb46fe42c50f037113437c62aaea015e8

SHA512
57d0ba5688ebf831ff5ca984dadd765c8d3bba2f0670c2d3853f5ff41c667a7d515c9ab4acc6d4e7c4eb0efdafe76d3681681e1a7c8e25c56ea0dedd4a8dee26

Download Submit
C:\Users\Admin\AppData\Roaming\fsdrdiw

Filesize
265KB

MD5
e704a20dd55f35e12e7aad186f1f3bc1

SHA1
505f5f855bc92097413ccbf44b605287e8ca5aa7

SHA256
5b8b64c570e91d014d876d61c15a793eb46fe42c50f037113437c62aaea015e8

SHA512
57d0ba5688ebf831ff5ca984dadd765c8d3bba2f0670c2d3853f5ff41c667a7d515c9ab4acc6d4e7c4eb0efdafe76d3681681e1a7c8e25c56ea0dedd4a8dee26

Download Submit
memory/2700-245-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2700-213-0x0000000000402DD8-mapping.dmp

Download
memory/2700-244-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2968-137-0x0000000077220000-0x00000000773AE000-memory.dmp

Filesize
1.6MB

Download
memory/2968-141-0x0000000077220000-0x00000000773AE000-memory.dmp

Filesize
1.6MB

Download
memory/2968-126-0x0000000077220000-0x00000000773AE000-memory.dmp

Filesize
1.6MB

Download
memory/2968-127-0x0000000077220000-0x00000000773AE000-memory.dmp

Filesize
1.6MB

Download
memory/2968-128-0x0000000077220000-0x00000000773AE000-memory.dmp

Filesize
1.6MB

Download
memory/2968-129-0x0000000077220000-0x00000000773AE000-memory.dmp

Filesize
1.6MB

Download
memory/2968-124-0x0000000077220000-0x00000000773AE000-memory.dmp

Filesize
1.6MB

Download
memory/2968-130-0x0000000077220000-0x00000000773AE000-memory.dmp

Filesize
1.6MB

Download
memory/2968-131-0x0000000077220000-0x00000000773AE000-memory.dmp

Filesize
1.6MB

Download
memory/2968-132-0x0000000077220000-0x00000000773AE000-memory.dmp

Filesize
1.6MB

Download
memory/2968-133-0x0000000077220000-0x00000000773AE000-memory.dmp

Filesize
1.6MB

Download
memory/2968-134-0x0000000077220000-0x00000000773AE000-memory.dmp

Filesize
1.6MB

Download
memory/2968-135-0x0000000077220000-0x00000000773AE000-memory.dmp

Filesize
1.6MB

Download
memory/2968-136-0x0000000077220000-0x00000000773AE000-memory.dmp

Filesize
1.6MB

Download
memory/2968-118-0x0000000077220000-0x00000000773AE000-memory.dmp

Filesize
1.6MB

Download
memory/2968-138-0x0000000077220000-0x00000000773AE000-memory.dmp

Filesize
1.6MB

Download
memory/2968-139-0x0000000077220000-0x00000000773AE000-memory.dmp

Filesize
1.6MB

Download
memory/2968-125-0x0000000077220000-0x00000000773AE000-memory.dmp

Filesize
1.6MB

Download
memory/2968-142-0x0000000077220000-0x00000000773AE000-memory.dmp

Filesize
1.6MB

Download
memory/2968-145-0x0000000077220000-0x00000000773AE000-memory.dmp

Filesize
1.6MB

Download
memory/2968-146-0x0000000077220000-0x00000000773AE000-memory.dmp

Filesize
1.6MB

Download
memory/2968-151-0x00000000004E0000-0x00000000004E9000-memory.dmp

Filesize
36KB

Download
memory/2968-144-0x0000000077220000-0x00000000773AE000-memory.dmp

Filesize
1.6MB

Download
memory/2968-143-0x0000000077220000-0x00000000773AE000-memory.dmp

Filesize
1.6MB

Download
memory/2968-119-0x0000000077220000-0x00000000773AE000-memory.dmp

Filesize
1.6MB

Download
memory/2968-120-0x0000000077220000-0x00000000773AE000-memory.dmp

Filesize
1.6MB

Download
memory/2968-123-0x0000000077220000-0x00000000773AE000-memory.dmp

Filesize
1.6MB

Download
memory/2968-122-0x0000000077220000-0x00000000773AE000-memory.dmp

Filesize
1.6MB

Download
memory/2968-121-0x0000000077220000-0x00000000773AE000-memory.dmp

Filesize
1.6MB

Download
memory/4184-183-0x0000000077220000-0x00000000773AE000-memory.dmp

Filesize
1.6MB

Download
memory/4184-182-0x0000000077220000-0x00000000773AE000-memory.dmp

Filesize
1.6MB

Download
memory/4184-184-0x0000000077220000-0x00000000773AE000-memory.dmp

Filesize
1.6MB

Download
memory/4184-187-0x0000000077220000-0x00000000773AE000-memory.dmp

Filesize
1.6MB

Download
memory/4184-186-0x0000000077220000-0x00000000773AE000-memory.dmp

Filesize
1.6MB

Download
memory/4184-185-0x0000000077220000-0x00000000773AE000-memory.dmp

Filesize
1.6MB

Download
memory/5044-152-0x0000000077220000-0x00000000773AE000-memory.dmp

Filesize
1.6MB

Download
memory/5044-166-0x0000000077220000-0x00000000773AE000-memory.dmp

Filesize
1.6MB

Download
memory/5044-167-0x0000000077220000-0x00000000773AE000-memory.dmp

Filesize
1.6MB

Download
memory/5044-169-0x0000000077220000-0x00000000773AE000-memory.dmp

Filesize
1.6MB

Download
memory/5044-168-0x0000000077220000-0x00000000773AE000-memory.dmp

Filesize
1.6MB

Download
memory/5044-165-0x0000000077220000-0x00000000773AE000-memory.dmp

Filesize
1.6MB

Download
memory/5044-162-0x0000000077220000-0x00000000773AE000-memory.dmp

Filesize
1.6MB

Download
memory/5044-161-0x0000000077220000-0x00000000773AE000-memory.dmp

Filesize
1.6MB

Download
memory/5044-160-0x0000000077220000-0x00000000773AE000-memory.dmp

Filesize
1.6MB

Download
memory/5044-159-0x0000000077220000-0x00000000773AE000-memory.dmp

Filesize
1.6MB

Download
memory/5044-156-0x0000000077220000-0x00000000773AE000-memory.dmp

Filesize
1.6MB

Download
memory/5044-155-0x0000000077220000-0x00000000773AE000-memory.dmp

Filesize
1.6MB

Download
memory/5044-153-0x0000000077220000-0x00000000773AE000-memory.dmp

Filesize
1.6MB

Download
memory/5044-170-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/5044-172-0x0000000077220000-0x00000000773AE000-memory.dmp

Filesize
1.6MB

Download
memory/5044-174-0x0000000077220000-0x00000000773AE000-memory.dmp

Filesize
1.6MB

Download
memory/5044-175-0x0000000077220000-0x00000000773AE000-memory.dmp

Filesize
1.6MB

Download
memory/5044-176-0x0000000077220000-0x00000000773AE000-memory.dmp

Filesize
1.6MB

Download
memory/5044-179-0x0000000077220000-0x00000000773AE000-memory.dmp

Filesize
1.6MB

Download
memory/5044-178-0x0000000077220000-0x00000000773AE000-memory.dmp

Filesize
1.6MB

Download
memory/5044-177-0x0000000077220000-0x00000000773AE000-memory.dmp

Filesize
1.6MB

Download
memory/5044-164-0x0000000077220000-0x00000000773AE000-memory.dmp

Filesize
1.6MB

Download
memory/5044-163-0x0000000077220000-0x00000000773AE000-memory.dmp

Filesize
1.6MB

Download
memory/5044-158-0x0000000077220000-0x00000000773AE000-memory.dmp

Filesize
1.6MB

Download
memory/5044-157-0x0000000077220000-0x00000000773AE000-memory.dmp

Filesize
1.6MB

Download
memory/5044-154-0x0000000077220000-0x00000000773AE000-memory.dmp

Filesize
1.6MB

Download
memory/5044-147-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/5044-148-0x0000000000402DD8-mapping.dmp

Download
memory/5044-149-0x0000000077220000-0x00000000773AE000-memory.dmp

Filesize
1.6MB

Download
memory/5044-150-0x0000000077220000-0x00000000773AE000-memory.dmp

Filesize
1.6MB

Download
memory/5044-173-0x0000000077220000-0x00000000773AE000-memory.dmp

Filesize
1.6MB

Download
memory/5044-171-0x0000000077220000-0x00000000773AE000-memory.dmp

Filesize
1.6MB

Download
memory/5044-180-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download