smokeloader | 3c38db571f68ad5e579b6638f344da22b733eafaca91d82f88bfd4545cab2204

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
18/09/2022, 13:28

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General

Target

3c38db571f68ad5e579b6638f344da22b733eafaca91d82f88bfd4545cab2204.exe
Size

291KB
MD5

2858c95b4eda85dd9b715caa11325486
SHA1

9e6c401da9cfbd632fcb234c5d2b8075bba32fa6
SHA256

3c38db571f68ad5e579b6638f344da22b733eafaca91d82f88bfd4545cab2204
SHA512

b7a7691d44fdd4eb655180666fb931da55ee2cebfb1543b191ddce2512d1d3f75b17f266ee5432037c02074091ed9e1af9b00ef0b32deaa24a254f5ff08b5ba0
SSDEEP

6144:AI2YdHLLr7xi9tHmugciU6ah00tQ+4nigabwVf:AST7xUtZsz0aFi

Score

10^/10

smokeloader backdoor trojan

Malware Config

Signatures

Detects Smokeloader packer 7 IoCs

resource	yara_rule
behavioral1/memory/2688-140-0x0000000000570000-0x0000000000579000-memory.dmp	family_smokeloader
behavioral1/memory/4544-145-0x0000000000402DD8-mapping.dmp	family_smokeloader
behavioral1/memory/4544-144-0x0000000000400000-0x0000000000409000-memory.dmp	family_smokeloader
behavioral1/memory/4544-158-0x0000000000400000-0x0000000000409000-memory.dmp	family_smokeloader
behavioral1/memory/4544-177-0x0000000000400000-0x0000000000409000-memory.dmp	family_smokeloader
behavioral1/memory/956-208-0x0000000000402DD8-mapping.dmp	family_smokeloader
behavioral1/memory/956-240-0x0000000000400000-0x0000000000409000-memory.dmp	family_smokeloader

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

Executes dropped EXE 2 IoCs

pid	Process
4872	fhatwag
956	fhatwag

Deletes itself 1 IoCs

pid	Process
3048	Process not Found

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 2688 set thread context of 4544	2688	3c38db571f68ad5e579b6638f344da22b733eafaca91d82f88bfd4545cab2204.exe	66
PID 4872 set thread context of 956	4872	fhatwag	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	3c38db571f68ad5e579b6638f344da22b733eafaca91d82f88bfd4545cab2204.exe
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	3c38db571f68ad5e579b6638f344da22b733eafaca91d82f88bfd4545cab2204.exe
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	3c38db571f68ad5e579b6638f344da22b733eafaca91d82f88bfd4545cab2204.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	fhatwag
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	fhatwag
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	fhatwag

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
4544	3c38db571f68ad5e579b6638f344da22b733eafaca91d82f88bfd4545cab2204.exe
4544	3c38db571f68ad5e579b6638f344da22b733eafaca91d82f88bfd4545cab2204.exe
3048	Process not Found
3048	Process not Found
3048	Process not Found
3048	Process not Found
3048	Process not Found
3048	Process not Found
3048	Process not Found
3048	Process not Found
3048	Process not Found
3048	Process not Found
3048	Process not Found
3048	Process not Found
3048	Process not Found
3048	Process not Found
3048	Process not Found
3048	Process not Found
3048	Process not Found
3048	Process not Found
3048	Process not Found
3048	Process not Found
3048	Process not Found
3048	Process not Found
3048	Process not Found
3048	Process not Found
3048	Process not Found
3048	Process not Found
3048	Process not Found
3048	Process not Found
3048	Process not Found
3048	Process not Found
3048	Process not Found
3048	Process not Found
3048	Process not Found
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3048	Process not Found
3048	Process not Found
3048	Process not Found
3048	Process not Found
3048	Process not Found
3048	Process not Found
3048	Process not Found
3048	Process not Found
3048	Process not Found
3048	Process not Found
3048	Process not Found
3048	Process not Found
3048	Process not Found
3048	Process not Found
3048	Process not Found
3048	Process not Found
3048	Process not Found
3048	Process not Found
3048	Process not Found
3048	Process not Found
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3048	Process not Found
3048	Process not Found
3048	Process not Found
3048	Process not Found
3048	Process not Found
3048	Process not Found
3048	Process not Found

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
3048	Process not Found

Suspicious behavior: MapViewOfSection 2 IoCs

pid	Process
4544	3c38db571f68ad5e579b6638f344da22b733eafaca91d82f88bfd4545cab2204.exe
956	fhatwag

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	3048	Process not Found
Token: SeCreatePagefilePrivilege	3048	Process not Found

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2688 wrote to memory of 4544	2688	3c38db571f68ad5e579b6638f344da22b733eafaca91d82f88bfd4545cab2204.exe	66
PID 2688 wrote to memory of 4544	2688	3c38db571f68ad5e579b6638f344da22b733eafaca91d82f88bfd4545cab2204.exe	66
PID 2688 wrote to memory of 4544	2688	3c38db571f68ad5e579b6638f344da22b733eafaca91d82f88bfd4545cab2204.exe	66
PID 2688 wrote to memory of 4544	2688	3c38db571f68ad5e579b6638f344da22b733eafaca91d82f88bfd4545cab2204.exe	66
PID 2688 wrote to memory of 4544	2688	3c38db571f68ad5e579b6638f344da22b733eafaca91d82f88bfd4545cab2204.exe	66
PID 2688 wrote to memory of 4544	2688	3c38db571f68ad5e579b6638f344da22b733eafaca91d82f88bfd4545cab2204.exe	66
PID 4872 wrote to memory of 956	4872	fhatwag	68
PID 4872 wrote to memory of 956	4872	fhatwag	68
PID 4872 wrote to memory of 956	4872	fhatwag	68
PID 4872 wrote to memory of 956	4872	fhatwag	68
PID 4872 wrote to memory of 956	4872	fhatwag	68
PID 4872 wrote to memory of 956	4872	fhatwag	68

C:\Users\Admin\AppData\Local\Temp\3c38db571f68ad5e579b6638f344da22b733eafaca91d82f88bfd4545cab2204.exe
"C:\Users\Admin\AppData\Local\Temp\3c38db571f68ad5e579b6638f344da22b733eafaca91d82f88bfd4545cab2204.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2688
- C:\Users\Admin\AppData\Local\Temp\3c38db571f68ad5e579b6638f344da22b733eafaca91d82f88bfd4545cab2204.exe
  "C:\Users\Admin\AppData\Local\Temp\3c38db571f68ad5e579b6638f344da22b733eafaca91d82f88bfd4545cab2204.exe"
  2⤵
  - Checks SCSI registry key(s)
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  PID:4544

C:\Users\Admin\AppData\Roaming\fhatwag
C:\Users\Admin\AppData\Roaming\fhatwag
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4872
- C:\Users\Admin\AppData\Roaming\fhatwag
  C:\Users\Admin\AppData\Roaming\fhatwag
  2⤵
  - Executes dropped EXE
  - Checks SCSI registry key(s)
  - Suspicious behavior: MapViewOfSection
  PID:956

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\fhatwag

Filesize
291KB

MD5
2858c95b4eda85dd9b715caa11325486

SHA1
9e6c401da9cfbd632fcb234c5d2b8075bba32fa6

SHA256
3c38db571f68ad5e579b6638f344da22b733eafaca91d82f88bfd4545cab2204

SHA512
b7a7691d44fdd4eb655180666fb931da55ee2cebfb1543b191ddce2512d1d3f75b17f266ee5432037c02074091ed9e1af9b00ef0b32deaa24a254f5ff08b5ba0

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

Filesize
291KB

MD5
2858c95b4eda85dd9b715caa11325486

SHA1
9e6c401da9cfbd632fcb234c5d2b8075bba32fa6

SHA256
3c38db571f68ad5e579b6638f344da22b733eafaca91d82f88bfd4545cab2204

SHA512
b7a7691d44fdd4eb655180666fb931da55ee2cebfb1543b191ddce2512d1d3f75b17f266ee5432037c02074091ed9e1af9b00ef0b32deaa24a254f5ff08b5ba0

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

Filesize
291KB

MD5
2858c95b4eda85dd9b715caa11325486

SHA1
9e6c401da9cfbd632fcb234c5d2b8075bba32fa6

SHA256
3c38db571f68ad5e579b6638f344da22b733eafaca91d82f88bfd4545cab2204

SHA512
b7a7691d44fdd4eb655180666fb931da55ee2cebfb1543b191ddce2512d1d3f75b17f266ee5432037c02074091ed9e1af9b00ef0b32deaa24a254f5ff08b5ba0

Download Submit
memory/956-240-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2688-127-0x00000000774C0000-0x000000007764E000-memory.dmp

Filesize
1.6MB

Download
memory/2688-131-0x00000000774C0000-0x000000007764E000-memory.dmp

Filesize
1.6MB

Download
memory/2688-118-0x00000000774C0000-0x000000007764E000-memory.dmp

Filesize
1.6MB

Download
memory/2688-119-0x00000000774C0000-0x000000007764E000-memory.dmp

Filesize
1.6MB

Download
memory/2688-120-0x00000000774C0000-0x000000007764E000-memory.dmp

Filesize
1.6MB

Download
memory/2688-121-0x00000000774C0000-0x000000007764E000-memory.dmp

Filesize
1.6MB

Download
memory/2688-122-0x00000000774C0000-0x000000007764E000-memory.dmp

Filesize
1.6MB

Download
memory/2688-123-0x00000000774C0000-0x000000007764E000-memory.dmp

Filesize
1.6MB

Download
memory/2688-124-0x00000000774C0000-0x000000007764E000-memory.dmp

Filesize
1.6MB

Download
memory/2688-125-0x00000000774C0000-0x000000007764E000-memory.dmp

Filesize
1.6MB

Download
memory/2688-126-0x00000000774C0000-0x000000007764E000-memory.dmp

Filesize
1.6MB

Download
memory/2688-116-0x00000000774C0000-0x000000007764E000-memory.dmp

Filesize
1.6MB

Download
memory/2688-128-0x00000000774C0000-0x000000007764E000-memory.dmp

Filesize
1.6MB

Download
memory/2688-129-0x00000000774C0000-0x000000007764E000-memory.dmp

Filesize
1.6MB

Download
memory/2688-130-0x00000000774C0000-0x000000007764E000-memory.dmp

Filesize
1.6MB

Download
memory/2688-117-0x00000000774C0000-0x000000007764E000-memory.dmp

Filesize
1.6MB

Download
memory/2688-132-0x00000000774C0000-0x000000007764E000-memory.dmp

Filesize
1.6MB

Download
memory/2688-133-0x00000000774C0000-0x000000007764E000-memory.dmp

Filesize
1.6MB

Download
memory/2688-134-0x00000000774C0000-0x000000007764E000-memory.dmp

Filesize
1.6MB

Download
memory/2688-135-0x00000000774C0000-0x000000007764E000-memory.dmp

Filesize
1.6MB

Download
memory/2688-136-0x00000000774C0000-0x000000007764E000-memory.dmp

Filesize
1.6MB

Download
memory/2688-137-0x00000000774C0000-0x000000007764E000-memory.dmp

Filesize
1.6MB

Download
memory/2688-138-0x00000000774C0000-0x000000007764E000-memory.dmp

Filesize
1.6MB

Download
memory/2688-139-0x0000000000728000-0x0000000000738000-memory.dmp

Filesize
64KB

Download
memory/2688-140-0x0000000000570000-0x0000000000579000-memory.dmp

Filesize
36KB

Download
memory/2688-141-0x00000000774C0000-0x000000007764E000-memory.dmp

Filesize
1.6MB

Download
memory/2688-142-0x00000000774C0000-0x000000007764E000-memory.dmp

Filesize
1.6MB

Download
memory/2688-143-0x00000000774C0000-0x000000007764E000-memory.dmp

Filesize
1.6MB

Download
memory/2688-149-0x0000000000728000-0x0000000000738000-memory.dmp

Filesize
64KB

Download
memory/2688-115-0x00000000774C0000-0x000000007764E000-memory.dmp

Filesize
1.6MB

Download
memory/4544-148-0x00000000774C0000-0x000000007764E000-memory.dmp

Filesize
1.6MB

Download
memory/4544-167-0x00000000774C0000-0x000000007764E000-memory.dmp

Filesize
1.6MB

Download
memory/4544-147-0x00000000774C0000-0x000000007764E000-memory.dmp

Filesize
1.6MB

Download
memory/4544-144-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/4544-150-0x00000000774C0000-0x000000007764E000-memory.dmp

Filesize
1.6MB

Download
memory/4544-151-0x00000000774C0000-0x000000007764E000-memory.dmp

Filesize
1.6MB

Download
memory/4544-152-0x00000000774C0000-0x000000007764E000-memory.dmp

Filesize
1.6MB

Download
memory/4544-153-0x00000000774C0000-0x000000007764E000-memory.dmp

Filesize
1.6MB

Download
memory/4544-154-0x00000000774C0000-0x000000007764E000-memory.dmp

Filesize
1.6MB

Download
memory/4544-155-0x00000000774C0000-0x000000007764E000-memory.dmp

Filesize
1.6MB

Download
memory/4544-158-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/4544-156-0x00000000774C0000-0x000000007764E000-memory.dmp

Filesize
1.6MB

Download
memory/4544-159-0x00000000774C0000-0x000000007764E000-memory.dmp

Filesize
1.6MB

Download
memory/4544-157-0x00000000774C0000-0x000000007764E000-memory.dmp

Filesize
1.6MB

Download
memory/4544-160-0x00000000774C0000-0x000000007764E000-memory.dmp

Filesize
1.6MB

Download
memory/4544-161-0x00000000774C0000-0x000000007764E000-memory.dmp

Filesize
1.6MB

Download
memory/4544-162-0x00000000774C0000-0x000000007764E000-memory.dmp

Filesize
1.6MB

Download
memory/4544-164-0x00000000774C0000-0x000000007764E000-memory.dmp

Filesize
1.6MB

Download
memory/4544-163-0x00000000774C0000-0x000000007764E000-memory.dmp

Filesize
1.6MB

Download
memory/4544-165-0x00000000774C0000-0x000000007764E000-memory.dmp

Filesize
1.6MB

Download
memory/4544-166-0x00000000774C0000-0x000000007764E000-memory.dmp

Filesize
1.6MB

Download
memory/4544-146-0x00000000774C0000-0x000000007764E000-memory.dmp

Filesize
1.6MB

Download
memory/4544-168-0x00000000774C0000-0x000000007764E000-memory.dmp

Filesize
1.6MB

Download
memory/4544-169-0x00000000774C0000-0x000000007764E000-memory.dmp

Filesize
1.6MB

Download
memory/4544-170-0x00000000774C0000-0x000000007764E000-memory.dmp

Filesize
1.6MB

Download
memory/4544-171-0x00000000774C0000-0x000000007764E000-memory.dmp

Filesize
1.6MB

Download
memory/4544-172-0x00000000774C0000-0x000000007764E000-memory.dmp

Filesize
1.6MB

Download
memory/4544-173-0x00000000774C0000-0x000000007764E000-memory.dmp

Filesize
1.6MB

Download
memory/4544-174-0x00000000774C0000-0x000000007764E000-memory.dmp

Filesize
1.6MB

Download
memory/4544-175-0x00000000774C0000-0x000000007764E000-memory.dmp

Filesize
1.6MB

Download
memory/4544-176-0x00000000774C0000-0x000000007764E000-memory.dmp

Filesize
1.6MB

Download
memory/4544-177-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/4872-180-0x00000000774C0000-0x000000007764E000-memory.dmp

Filesize
1.6MB

Download
memory/4872-181-0x00000000774C0000-0x000000007764E000-memory.dmp

Filesize
1.6MB

Download
memory/4872-182-0x00000000774C0000-0x000000007764E000-memory.dmp

Filesize
1.6MB

Download
memory/4872-183-0x00000000774C0000-0x000000007764E000-memory.dmp

Filesize
1.6MB

Download
memory/4872-184-0x00000000774C0000-0x000000007764E000-memory.dmp

Filesize
1.6MB

Download
memory/4872-185-0x00000000774C0000-0x000000007764E000-memory.dmp

Filesize
1.6MB

Download
memory/4872-215-0x0000000000747000-0x0000000000758000-memory.dmp

Filesize
68KB

Download
memory/4872-179-0x00000000774C0000-0x000000007764E000-memory.dmp

Filesize
1.6MB

Download