smokeloader | 3b4612b12159303021938158e27b6f99c8539e14aa08f3b27e5c919ed9006775

Analysis

max time kernel
150s
max time network
146s
platform
windows10-1703_x64
resource
win10-20220812-en
resource tags

arch:x64arch:x86image:win10-20220812-enlocale:en-usos:windows10-1703-x64system
submitted
27/10/2022, 09:58

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General

Target

3b4612b12159303021938158e27b6f99c8539e14aa08f3b27e5c919ed9006775.exe
Size

260KB
MD5

708e7f2aaa80347c8813cab1e76d1599
SHA1

20183660b5b67d2e60b77755a86ded4c493e5c1d
SHA256

3b4612b12159303021938158e27b6f99c8539e14aa08f3b27e5c919ed9006775
SHA512

7df8761dca9e8a08a19e60367a5a5b5f4c5a1c60d6395a822e2f8aef77214c44b965ccb2042c184248fadaf2b6e1d0182ce80be489e98028bb869f7d8babcc8f
SSDEEP

3072:XXC0oW2YkQ0UOqXJbS5tDA45qnERjZFjM+r9EESLvVl7GUAFR/wjiW0Kc:Hlp22DOqXJM0MGsjnMaEJx1vuwiW0

Score

10^/10

smokeloader backdoor trojan

Malware Config

Signatures

Detects Smokeloader packer 7 IoCs

resource	yara_rule
behavioral1/memory/1112-145-0x0000000002D50000-0x0000000002D59000-memory.dmp	family_smokeloader
behavioral1/memory/2716-150-0x0000000000400000-0x0000000000409000-memory.dmp	family_smokeloader
behavioral1/memory/2716-151-0x0000000000402DD8-mapping.dmp	family_smokeloader
behavioral1/memory/2716-162-0x0000000000400000-0x0000000000409000-memory.dmp	family_smokeloader
behavioral1/memory/2716-182-0x0000000000400000-0x0000000000409000-memory.dmp	family_smokeloader
behavioral1/memory/1656-213-0x0000000000402DD8-mapping.dmp	family_smokeloader
behavioral1/memory/1656-245-0x0000000000400000-0x0000000000409000-memory.dmp	family_smokeloader

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

Executes dropped EXE 2 IoCs

pid	Process
5092	biwgwjt
1656	biwgwjt

Deletes itself 1 IoCs

pid	Process
3056	Process not Found

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 1112 set thread context of 2716	1112	3b4612b12159303021938158e27b6f99c8539e14aa08f3b27e5c919ed9006775.exe	66
PID 5092 set thread context of 1656	5092	biwgwjt	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	biwgwjt
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	biwgwjt
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	biwgwjt
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	3b4612b12159303021938158e27b6f99c8539e14aa08f3b27e5c919ed9006775.exe
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	3b4612b12159303021938158e27b6f99c8539e14aa08f3b27e5c919ed9006775.exe
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	3b4612b12159303021938158e27b6f99c8539e14aa08f3b27e5c919ed9006775.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
2716	3b4612b12159303021938158e27b6f99c8539e14aa08f3b27e5c919ed9006775.exe
2716	3b4612b12159303021938158e27b6f99c8539e14aa08f3b27e5c919ed9006775.exe
3056	Process not Found
3056	Process not Found
3056	Process not Found
3056	Process not Found
3056	Process not Found
3056	Process not Found
3056	Process not Found
3056	Process not Found
3056	Process not Found
3056	Process not Found
3056	Process not Found
3056	Process not Found
3056	Process not Found
3056	Process not Found
3056	Process not Found
3056	Process not Found
3056	Process not Found
3056	Process not Found
3056	Process not Found
3056	Process not Found
3056	Process not Found
3056	Process not Found
3056	Process not Found
3056	Process not Found
3056	Process not Found
3056	Process not Found
3056	Process not Found
3056	Process not Found
3056	Process not Found
3056	Process not Found
3056	Process not Found
3056	Process not Found
3056	Process not Found
3056	Process not Found
3056	Process not Found
3056	Process not Found
3056	Process not Found
3056	Process not Found
3056	Process not Found
3056	Process not Found
3056	Process not Found
3056	Process not Found
3056	Process not Found
3056	Process not Found
3056	Process not Found
3056	Process not Found
3056	Process not Found
3056	Process not Found
3056	Process not Found
3056	Process not Found
3056	Process not Found
3056	Process not Found
3056	Process not Found
3056	Process not Found
3056	Process not Found
3056	Process not Found
3056	Process not Found
3056	Process not Found
3056	Process not Found
3056	Process not Found
3056	Process not Found
3056	Process not Found

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
3056	Process not Found

Suspicious behavior: MapViewOfSection 2 IoCs

pid	Process
2716	3b4612b12159303021938158e27b6f99c8539e14aa08f3b27e5c919ed9006775.exe
1656	biwgwjt

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3056	Process not Found
Token: SeCreatePagefilePrivilege	3056	Process not Found

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 1112 wrote to memory of 2716	1112	3b4612b12159303021938158e27b6f99c8539e14aa08f3b27e5c919ed9006775.exe	66
PID 1112 wrote to memory of 2716	1112	3b4612b12159303021938158e27b6f99c8539e14aa08f3b27e5c919ed9006775.exe	66
PID 1112 wrote to memory of 2716	1112	3b4612b12159303021938158e27b6f99c8539e14aa08f3b27e5c919ed9006775.exe	66
PID 1112 wrote to memory of 2716	1112	3b4612b12159303021938158e27b6f99c8539e14aa08f3b27e5c919ed9006775.exe	66
PID 1112 wrote to memory of 2716	1112	3b4612b12159303021938158e27b6f99c8539e14aa08f3b27e5c919ed9006775.exe	66
PID 1112 wrote to memory of 2716	1112	3b4612b12159303021938158e27b6f99c8539e14aa08f3b27e5c919ed9006775.exe	66
PID 5092 wrote to memory of 1656	5092	biwgwjt	68
PID 5092 wrote to memory of 1656	5092	biwgwjt	68
PID 5092 wrote to memory of 1656	5092	biwgwjt	68
PID 5092 wrote to memory of 1656	5092	biwgwjt	68
PID 5092 wrote to memory of 1656	5092	biwgwjt	68
PID 5092 wrote to memory of 1656	5092	biwgwjt	68

C:\Users\Admin\AppData\Local\Temp\3b4612b12159303021938158e27b6f99c8539e14aa08f3b27e5c919ed9006775.exe
"C:\Users\Admin\AppData\Local\Temp\3b4612b12159303021938158e27b6f99c8539e14aa08f3b27e5c919ed9006775.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1112
- C:\Users\Admin\AppData\Local\Temp\3b4612b12159303021938158e27b6f99c8539e14aa08f3b27e5c919ed9006775.exe
  "C:\Users\Admin\AppData\Local\Temp\3b4612b12159303021938158e27b6f99c8539e14aa08f3b27e5c919ed9006775.exe"
  2⤵
  - Checks SCSI registry key(s)
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  PID:2716

C:\Users\Admin\AppData\Roaming\biwgwjt
C:\Users\Admin\AppData\Roaming\biwgwjt
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:5092
- C:\Users\Admin\AppData\Roaming\biwgwjt
  C:\Users\Admin\AppData\Roaming\biwgwjt
  2⤵
  - Executes dropped EXE
  - Checks SCSI registry key(s)
  - Suspicious behavior: MapViewOfSection
  PID:1656

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\biwgwjt

Filesize
260KB

MD5
708e7f2aaa80347c8813cab1e76d1599

SHA1
20183660b5b67d2e60b77755a86ded4c493e5c1d

SHA256
3b4612b12159303021938158e27b6f99c8539e14aa08f3b27e5c919ed9006775

SHA512
7df8761dca9e8a08a19e60367a5a5b5f4c5a1c60d6395a822e2f8aef77214c44b965ccb2042c184248fadaf2b6e1d0182ce80be489e98028bb869f7d8babcc8f

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

Filesize
260KB

MD5
708e7f2aaa80347c8813cab1e76d1599

SHA1
20183660b5b67d2e60b77755a86ded4c493e5c1d

SHA256
3b4612b12159303021938158e27b6f99c8539e14aa08f3b27e5c919ed9006775

SHA512
7df8761dca9e8a08a19e60367a5a5b5f4c5a1c60d6395a822e2f8aef77214c44b965ccb2042c184248fadaf2b6e1d0182ce80be489e98028bb869f7d8babcc8f

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

Filesize
260KB

MD5
708e7f2aaa80347c8813cab1e76d1599

SHA1
20183660b5b67d2e60b77755a86ded4c493e5c1d

SHA256
3b4612b12159303021938158e27b6f99c8539e14aa08f3b27e5c919ed9006775

SHA512
7df8761dca9e8a08a19e60367a5a5b5f4c5a1c60d6395a822e2f8aef77214c44b965ccb2042c184248fadaf2b6e1d0182ce80be489e98028bb869f7d8babcc8f

Download Submit
memory/1112-120-0x0000000076FB0000-0x000000007713E000-memory.dmp

Filesize
1.6MB

Download
memory/1112-121-0x0000000076FB0000-0x000000007713E000-memory.dmp

Filesize
1.6MB

Download
memory/1112-122-0x0000000076FB0000-0x000000007713E000-memory.dmp

Filesize
1.6MB

Download
memory/1112-123-0x0000000076FB0000-0x000000007713E000-memory.dmp

Filesize
1.6MB

Download
memory/1112-124-0x0000000076FB0000-0x000000007713E000-memory.dmp

Filesize
1.6MB

Download
memory/1112-125-0x0000000076FB0000-0x000000007713E000-memory.dmp

Filesize
1.6MB

Download
memory/1112-126-0x0000000076FB0000-0x000000007713E000-memory.dmp

Filesize
1.6MB

Download
memory/1112-128-0x0000000076FB0000-0x000000007713E000-memory.dmp

Filesize
1.6MB

Download
memory/1112-129-0x0000000076FB0000-0x000000007713E000-memory.dmp

Filesize
1.6MB

Download
memory/1112-130-0x0000000076FB0000-0x000000007713E000-memory.dmp

Filesize
1.6MB

Download
memory/1112-131-0x0000000076FB0000-0x000000007713E000-memory.dmp

Filesize
1.6MB

Download
memory/1112-132-0x0000000076FB0000-0x000000007713E000-memory.dmp

Filesize
1.6MB

Download
memory/1112-133-0x0000000076FB0000-0x000000007713E000-memory.dmp

Filesize
1.6MB

Download
memory/1112-134-0x0000000076FB0000-0x000000007713E000-memory.dmp

Filesize
1.6MB

Download
memory/1112-135-0x0000000076FB0000-0x000000007713E000-memory.dmp

Filesize
1.6MB

Download
memory/1112-136-0x0000000076FB0000-0x000000007713E000-memory.dmp

Filesize
1.6MB

Download
memory/1112-137-0x0000000076FB0000-0x000000007713E000-memory.dmp

Filesize
1.6MB

Download
memory/1112-138-0x0000000076FB0000-0x000000007713E000-memory.dmp

Filesize
1.6MB

Download
memory/1112-139-0x0000000076FB0000-0x000000007713E000-memory.dmp

Filesize
1.6MB

Download
memory/1112-140-0x0000000076FB0000-0x000000007713E000-memory.dmp

Filesize
1.6MB

Download
memory/1112-141-0x0000000076FB0000-0x000000007713E000-memory.dmp

Filesize
1.6MB

Download
memory/1112-143-0x0000000002D70000-0x0000000002EBA000-memory.dmp

Filesize
1.3MB

Download
memory/1112-145-0x0000000002D50000-0x0000000002D59000-memory.dmp

Filesize
36KB

Download
memory/1112-144-0x0000000076FB0000-0x000000007713E000-memory.dmp

Filesize
1.6MB

Download
memory/1112-142-0x0000000076FB0000-0x000000007713E000-memory.dmp

Filesize
1.6MB

Download
memory/1112-146-0x0000000076FB0000-0x000000007713E000-memory.dmp

Filesize
1.6MB

Download
memory/1112-147-0x0000000076FB0000-0x000000007713E000-memory.dmp

Filesize
1.6MB

Download
memory/1112-148-0x0000000076FB0000-0x000000007713E000-memory.dmp

Filesize
1.6MB

Download
memory/1112-149-0x0000000076FB0000-0x000000007713E000-memory.dmp

Filesize
1.6MB

Download
memory/1656-245-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2716-152-0x0000000076FB0000-0x000000007713E000-memory.dmp

Filesize
1.6MB

Download
memory/2716-171-0x0000000076FB0000-0x000000007713E000-memory.dmp

Filesize
1.6MB

Download
memory/2716-150-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2716-153-0x0000000076FB0000-0x000000007713E000-memory.dmp

Filesize
1.6MB

Download
memory/2716-154-0x0000000076FB0000-0x000000007713E000-memory.dmp

Filesize
1.6MB

Download
memory/2716-155-0x0000000076FB0000-0x000000007713E000-memory.dmp

Filesize
1.6MB

Download
memory/2716-156-0x0000000076FB0000-0x000000007713E000-memory.dmp

Filesize
1.6MB

Download
memory/2716-157-0x0000000076FB0000-0x000000007713E000-memory.dmp

Filesize
1.6MB

Download
memory/2716-158-0x0000000076FB0000-0x000000007713E000-memory.dmp

Filesize
1.6MB

Download
memory/2716-159-0x0000000076FB0000-0x000000007713E000-memory.dmp

Filesize
1.6MB

Download
memory/2716-160-0x0000000076FB0000-0x000000007713E000-memory.dmp

Filesize
1.6MB

Download
memory/2716-161-0x0000000076FB0000-0x000000007713E000-memory.dmp

Filesize
1.6MB

Download
memory/2716-163-0x0000000076FB0000-0x000000007713E000-memory.dmp

Filesize
1.6MB

Download
memory/2716-162-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2716-164-0x0000000076FB0000-0x000000007713E000-memory.dmp

Filesize
1.6MB

Download
memory/2716-165-0x0000000076FB0000-0x000000007713E000-memory.dmp

Filesize
1.6MB

Download
memory/2716-166-0x0000000076FB0000-0x000000007713E000-memory.dmp

Filesize
1.6MB

Download
memory/2716-167-0x0000000076FB0000-0x000000007713E000-memory.dmp

Filesize
1.6MB

Download
memory/2716-168-0x0000000076FB0000-0x000000007713E000-memory.dmp

Filesize
1.6MB

Download
memory/2716-170-0x0000000076FB0000-0x000000007713E000-memory.dmp

Filesize
1.6MB

Download
memory/2716-169-0x0000000076FB0000-0x000000007713E000-memory.dmp

Filesize
1.6MB

Download
memory/2716-172-0x0000000076FB0000-0x000000007713E000-memory.dmp

Filesize
1.6MB

Download
memory/2716-173-0x0000000076FB0000-0x000000007713E000-memory.dmp

Filesize
1.6MB

Download
memory/2716-174-0x0000000076FB0000-0x000000007713E000-memory.dmp

Filesize
1.6MB

Download
memory/2716-175-0x0000000076FB0000-0x000000007713E000-memory.dmp

Filesize
1.6MB

Download
memory/2716-176-0x0000000076FB0000-0x000000007713E000-memory.dmp

Filesize
1.6MB

Download
memory/2716-177-0x0000000076FB0000-0x000000007713E000-memory.dmp

Filesize
1.6MB

Download
memory/2716-178-0x0000000076FB0000-0x000000007713E000-memory.dmp

Filesize
1.6MB

Download
memory/2716-179-0x0000000076FB0000-0x000000007713E000-memory.dmp

Filesize
1.6MB

Download
memory/2716-180-0x0000000076FB0000-0x000000007713E000-memory.dmp

Filesize
1.6MB

Download
memory/2716-181-0x0000000076FB0000-0x000000007713E000-memory.dmp

Filesize
1.6MB

Download
memory/2716-182-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/5092-184-0x0000000076FB0000-0x000000007713E000-memory.dmp

Filesize
1.6MB

Download
memory/5092-185-0x0000000076FB0000-0x000000007713E000-memory.dmp

Filesize
1.6MB

Download
memory/5092-186-0x0000000076FB0000-0x000000007713E000-memory.dmp

Filesize
1.6MB

Download
memory/5092-187-0x0000000076FB0000-0x000000007713E000-memory.dmp

Filesize
1.6MB

Download
memory/5092-188-0x0000000076FB0000-0x000000007713E000-memory.dmp

Filesize
1.6MB

Download
memory/5092-189-0x0000000076FB0000-0x000000007713E000-memory.dmp

Filesize
1.6MB

Download
memory/5092-190-0x0000000076FB0000-0x000000007713E000-memory.dmp

Filesize
1.6MB

Download
memory/5092-222-0x0000000002E81000-0x0000000002E97000-memory.dmp

Filesize
88KB

Download