smokeloader | 97551d132a7e0af63281d8e2615e3c795ee28535a313ac6cafb1d8474bf8f2d7

Analysis

max time kernel
150s
max time network
143s
platform
windows10-1703_x64
resource
win10-20220812-en
resource tags

arch:x64arch:x86image:win10-20220812-enlocale:en-usos:windows10-1703-x64system
submitted
06/10/2022, 16:17

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General

Target

97551d132a7e0af63281d8e2615e3c795ee28535a313ac6cafb1d8474bf8f2d7.exe
Size

147KB
MD5

fb4448f0996ad7559cdb492a17451bb5
SHA1

60b4d9e43aa69c41d4d93bc1b3a8734420c92a73
SHA256

97551d132a7e0af63281d8e2615e3c795ee28535a313ac6cafb1d8474bf8f2d7
SHA512

3c530d0e60d6faadebb6afc3dce69ef2aabc245b3d32d02351c389758f403da84f1214e8b8e155ec03674d072e5027613b47cc337d75ef531689e42adce140cb
SSDEEP

3072:Q32cn5L0+MXEloPzQX2S/C3vQPYb6bxUTnu/pp3MPGkO:Q395LzMRsi3cYoUnu/pp3k

Score

10^/10

smokeloader backdoor trojan

Malware Config

Signatures

Detects Smokeloader packer 6 IoCs

resource	yara_rule
behavioral1/memory/3900-150-0x0000000000400000-0x0000000000409000-memory.dmp	family_smokeloader
behavioral1/memory/3900-151-0x0000000000402DD8-mapping.dmp	family_smokeloader
behavioral1/memory/3900-159-0x0000000000400000-0x0000000000409000-memory.dmp	family_smokeloader
behavioral1/memory/3900-182-0x0000000000400000-0x0000000000409000-memory.dmp	family_smokeloader
behavioral1/memory/3736-214-0x0000000000402DD8-mapping.dmp	family_smokeloader
behavioral1/memory/3736-246-0x0000000000400000-0x0000000000409000-memory.dmp	family_smokeloader

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

Executes dropped EXE 2 IoCs

pid	Process
5052	stefchb
3736	stefchb

Deletes itself 1 IoCs

pid	Process
2172	Process not Found

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 2620 set thread context of 3900	2620	97551d132a7e0af63281d8e2615e3c795ee28535a313ac6cafb1d8474bf8f2d7.exe	66
PID 5052 set thread context of 3736	5052	stefchb	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	97551d132a7e0af63281d8e2615e3c795ee28535a313ac6cafb1d8474bf8f2d7.exe
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	97551d132a7e0af63281d8e2615e3c795ee28535a313ac6cafb1d8474bf8f2d7.exe
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	97551d132a7e0af63281d8e2615e3c795ee28535a313ac6cafb1d8474bf8f2d7.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	stefchb
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	stefchb
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	stefchb

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
3900	97551d132a7e0af63281d8e2615e3c795ee28535a313ac6cafb1d8474bf8f2d7.exe
3900	97551d132a7e0af63281d8e2615e3c795ee28535a313ac6cafb1d8474bf8f2d7.exe
2172	Process not Found
2172	Process not Found
2172	Process not Found
2172	Process not Found
2172	Process not Found
2172	Process not Found
2172	Process not Found
2172	Process not Found
2172	Process not Found
2172	Process not Found
2172	Process not Found
2172	Process not Found
2172	Process not Found
2172	Process not Found
2172	Process not Found
2172	Process not Found
2172	Process not Found
2172	Process not Found
2172	Process not Found
2172	Process not Found
2172	Process not Found
2172	Process not Found
2172	Process not Found
2172	Process not Found
2172	Process not Found
2172	Process not Found
2172	Process not Found
2172	Process not Found
2172	Process not Found
2172	Process not Found
2172	Process not Found
2172	Process not Found
2172	Process not Found
2172	Process not Found
2172	Process not Found
2172	Process not Found
2172	Process not Found
2172	Process not Found
2172	Process not Found
2172	Process not Found
2172	Process not Found
2172	Process not Found
2172	Process not Found
2172	Process not Found
2172	Process not Found
2172	Process not Found
2172	Process not Found
2172	Process not Found
2172	Process not Found
2172	Process not Found
2172	Process not Found
2172	Process not Found
2172	Process not Found
2172	Process not Found
2172	Process not Found
2172	Process not Found
2172	Process not Found
2172	Process not Found
2172	Process not Found
2172	Process not Found
2172	Process not Found
2172	Process not Found

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2172	Process not Found

Suspicious behavior: MapViewOfSection 2 IoCs

pid	Process
3900	97551d132a7e0af63281d8e2615e3c795ee28535a313ac6cafb1d8474bf8f2d7.exe
3736	stefchb

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	2172	Process not Found
Token: SeCreatePagefilePrivilege	2172	Process not Found

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2620 wrote to memory of 3900	2620	97551d132a7e0af63281d8e2615e3c795ee28535a313ac6cafb1d8474bf8f2d7.exe	66
PID 2620 wrote to memory of 3900	2620	97551d132a7e0af63281d8e2615e3c795ee28535a313ac6cafb1d8474bf8f2d7.exe	66
PID 2620 wrote to memory of 3900	2620	97551d132a7e0af63281d8e2615e3c795ee28535a313ac6cafb1d8474bf8f2d7.exe	66
PID 2620 wrote to memory of 3900	2620	97551d132a7e0af63281d8e2615e3c795ee28535a313ac6cafb1d8474bf8f2d7.exe	66
PID 2620 wrote to memory of 3900	2620	97551d132a7e0af63281d8e2615e3c795ee28535a313ac6cafb1d8474bf8f2d7.exe	66
PID 2620 wrote to memory of 3900	2620	97551d132a7e0af63281d8e2615e3c795ee28535a313ac6cafb1d8474bf8f2d7.exe	66
PID 5052 wrote to memory of 3736	5052	stefchb	68
PID 5052 wrote to memory of 3736	5052	stefchb	68
PID 5052 wrote to memory of 3736	5052	stefchb	68
PID 5052 wrote to memory of 3736	5052	stefchb	68
PID 5052 wrote to memory of 3736	5052	stefchb	68
PID 5052 wrote to memory of 3736	5052	stefchb	68

C:\Users\Admin\AppData\Local\Temp\97551d132a7e0af63281d8e2615e3c795ee28535a313ac6cafb1d8474bf8f2d7.exe
"C:\Users\Admin\AppData\Local\Temp\97551d132a7e0af63281d8e2615e3c795ee28535a313ac6cafb1d8474bf8f2d7.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2620
- C:\Users\Admin\AppData\Local\Temp\97551d132a7e0af63281d8e2615e3c795ee28535a313ac6cafb1d8474bf8f2d7.exe
  "C:\Users\Admin\AppData\Local\Temp\97551d132a7e0af63281d8e2615e3c795ee28535a313ac6cafb1d8474bf8f2d7.exe"
  2⤵
  - Checks SCSI registry key(s)
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  PID:3900

C:\Users\Admin\AppData\Roaming\stefchb
C:\Users\Admin\AppData\Roaming\stefchb
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:5052
- C:\Users\Admin\AppData\Roaming\stefchb
  C:\Users\Admin\AppData\Roaming\stefchb
  2⤵
  - Executes dropped EXE
  - Checks SCSI registry key(s)
  - Suspicious behavior: MapViewOfSection
  PID:3736

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\stefchb

Filesize
147KB

MD5
fb4448f0996ad7559cdb492a17451bb5

SHA1
60b4d9e43aa69c41d4d93bc1b3a8734420c92a73

SHA256
97551d132a7e0af63281d8e2615e3c795ee28535a313ac6cafb1d8474bf8f2d7

SHA512
3c530d0e60d6faadebb6afc3dce69ef2aabc245b3d32d02351c389758f403da84f1214e8b8e155ec03674d072e5027613b47cc337d75ef531689e42adce140cb

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

Filesize
147KB

MD5
fb4448f0996ad7559cdb492a17451bb5

SHA1
60b4d9e43aa69c41d4d93bc1b3a8734420c92a73

SHA256
97551d132a7e0af63281d8e2615e3c795ee28535a313ac6cafb1d8474bf8f2d7

SHA512
3c530d0e60d6faadebb6afc3dce69ef2aabc245b3d32d02351c389758f403da84f1214e8b8e155ec03674d072e5027613b47cc337d75ef531689e42adce140cb

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

Filesize
147KB

MD5
fb4448f0996ad7559cdb492a17451bb5

SHA1
60b4d9e43aa69c41d4d93bc1b3a8734420c92a73

SHA256
97551d132a7e0af63281d8e2615e3c795ee28535a313ac6cafb1d8474bf8f2d7

SHA512
3c530d0e60d6faadebb6afc3dce69ef2aabc245b3d32d02351c389758f403da84f1214e8b8e155ec03674d072e5027613b47cc337d75ef531689e42adce140cb

Download Submit
memory/2620-119-0x0000000077770000-0x00000000778FE000-memory.dmp

Filesize
1.6MB

Download
memory/2620-120-0x0000000077770000-0x00000000778FE000-memory.dmp

Filesize
1.6MB

Download
memory/2620-121-0x0000000077770000-0x00000000778FE000-memory.dmp

Filesize
1.6MB

Download
memory/2620-122-0x0000000077770000-0x00000000778FE000-memory.dmp

Filesize
1.6MB

Download
memory/2620-123-0x0000000077770000-0x00000000778FE000-memory.dmp

Filesize
1.6MB

Download
memory/2620-124-0x0000000077770000-0x00000000778FE000-memory.dmp

Filesize
1.6MB

Download
memory/2620-125-0x0000000077770000-0x00000000778FE000-memory.dmp

Filesize
1.6MB

Download
memory/2620-126-0x0000000077770000-0x00000000778FE000-memory.dmp

Filesize
1.6MB

Download
memory/2620-128-0x0000000077770000-0x00000000778FE000-memory.dmp

Filesize
1.6MB

Download
memory/2620-127-0x0000000077770000-0x00000000778FE000-memory.dmp

Filesize
1.6MB

Download
memory/2620-129-0x0000000077770000-0x00000000778FE000-memory.dmp

Filesize
1.6MB

Download
memory/2620-130-0x0000000077770000-0x00000000778FE000-memory.dmp

Filesize
1.6MB

Download
memory/2620-131-0x0000000077770000-0x00000000778FE000-memory.dmp

Filesize
1.6MB

Download
memory/2620-132-0x0000000077770000-0x00000000778FE000-memory.dmp

Filesize
1.6MB

Download
memory/2620-133-0x0000000077770000-0x00000000778FE000-memory.dmp

Filesize
1.6MB

Download
memory/2620-134-0x0000000077770000-0x00000000778FE000-memory.dmp

Filesize
1.6MB

Download
memory/2620-135-0x0000000077770000-0x00000000778FE000-memory.dmp

Filesize
1.6MB

Download
memory/2620-136-0x0000000077770000-0x00000000778FE000-memory.dmp

Filesize
1.6MB

Download
memory/2620-137-0x0000000077770000-0x00000000778FE000-memory.dmp

Filesize
1.6MB

Download
memory/2620-138-0x0000000077770000-0x00000000778FE000-memory.dmp

Filesize
1.6MB

Download
memory/2620-139-0x0000000077770000-0x00000000778FE000-memory.dmp

Filesize
1.6MB

Download
memory/2620-140-0x0000000077770000-0x00000000778FE000-memory.dmp

Filesize
1.6MB

Download
memory/2620-142-0x0000000077770000-0x00000000778FE000-memory.dmp

Filesize
1.6MB

Download
memory/2620-143-0x0000000077770000-0x00000000778FE000-memory.dmp

Filesize
1.6MB

Download
memory/2620-144-0x0000000077770000-0x00000000778FE000-memory.dmp

Filesize
1.6MB

Download
memory/2620-145-0x0000000000650000-0x000000000079A000-memory.dmp

Filesize
1.3MB

Download
memory/2620-146-0x0000000000590000-0x000000000063E000-memory.dmp

Filesize
696KB

Download
memory/2620-147-0x0000000077770000-0x00000000778FE000-memory.dmp

Filesize
1.6MB

Download
memory/2620-148-0x0000000077770000-0x00000000778FE000-memory.dmp

Filesize
1.6MB

Download
memory/2620-149-0x0000000077770000-0x00000000778FE000-memory.dmp

Filesize
1.6MB

Download
memory/3736-246-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/3900-169-0x0000000077770000-0x00000000778FE000-memory.dmp

Filesize
1.6MB

Download
memory/3900-152-0x0000000077770000-0x00000000778FE000-memory.dmp

Filesize
1.6MB

Download
memory/3900-153-0x0000000077770000-0x00000000778FE000-memory.dmp

Filesize
1.6MB

Download
memory/3900-154-0x0000000077770000-0x00000000778FE000-memory.dmp

Filesize
1.6MB

Download
memory/3900-155-0x0000000077770000-0x00000000778FE000-memory.dmp

Filesize
1.6MB

Download
memory/3900-156-0x0000000077770000-0x00000000778FE000-memory.dmp

Filesize
1.6MB

Download
memory/3900-157-0x0000000077770000-0x00000000778FE000-memory.dmp

Filesize
1.6MB

Download
memory/3900-158-0x0000000077770000-0x00000000778FE000-memory.dmp

Filesize
1.6MB

Download
memory/3900-159-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/3900-160-0x0000000077770000-0x00000000778FE000-memory.dmp

Filesize
1.6MB

Download
memory/3900-161-0x0000000077770000-0x00000000778FE000-memory.dmp

Filesize
1.6MB

Download
memory/3900-162-0x0000000077770000-0x00000000778FE000-memory.dmp

Filesize
1.6MB

Download
memory/3900-163-0x0000000077770000-0x00000000778FE000-memory.dmp

Filesize
1.6MB

Download
memory/3900-164-0x0000000077770000-0x00000000778FE000-memory.dmp

Filesize
1.6MB

Download
memory/3900-165-0x0000000077770000-0x00000000778FE000-memory.dmp

Filesize
1.6MB

Download
memory/3900-166-0x0000000077770000-0x00000000778FE000-memory.dmp

Filesize
1.6MB

Download
memory/3900-167-0x0000000077770000-0x00000000778FE000-memory.dmp

Filesize
1.6MB

Download
memory/3900-168-0x0000000077770000-0x00000000778FE000-memory.dmp

Filesize
1.6MB

Download
memory/3900-150-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/3900-170-0x0000000077770000-0x00000000778FE000-memory.dmp

Filesize
1.6MB

Download
memory/3900-171-0x0000000077770000-0x00000000778FE000-memory.dmp

Filesize
1.6MB

Download
memory/3900-172-0x0000000077770000-0x00000000778FE000-memory.dmp

Filesize
1.6MB

Download
memory/3900-173-0x0000000077770000-0x00000000778FE000-memory.dmp

Filesize
1.6MB

Download
memory/3900-174-0x0000000077770000-0x00000000778FE000-memory.dmp

Filesize
1.6MB

Download
memory/3900-175-0x0000000077770000-0x00000000778FE000-memory.dmp

Filesize
1.6MB

Download
memory/3900-176-0x0000000077770000-0x00000000778FE000-memory.dmp

Filesize
1.6MB

Download
memory/3900-177-0x0000000077770000-0x00000000778FE000-memory.dmp

Filesize
1.6MB

Download
memory/3900-178-0x0000000077770000-0x00000000778FE000-memory.dmp

Filesize
1.6MB

Download
memory/3900-179-0x0000000077770000-0x00000000778FE000-memory.dmp

Filesize
1.6MB

Download
memory/3900-180-0x0000000077770000-0x00000000778FE000-memory.dmp

Filesize
1.6MB

Download
memory/3900-181-0x0000000077770000-0x00000000778FE000-memory.dmp

Filesize
1.6MB

Download
memory/3900-182-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/5052-184-0x0000000077770000-0x00000000778FE000-memory.dmp

Filesize
1.6MB

Download
memory/5052-185-0x0000000077770000-0x00000000778FE000-memory.dmp

Filesize
1.6MB

Download
memory/5052-186-0x0000000077770000-0x00000000778FE000-memory.dmp

Filesize
1.6MB

Download
memory/5052-187-0x0000000077770000-0x00000000778FE000-memory.dmp

Filesize
1.6MB

Download
memory/5052-188-0x0000000077770000-0x00000000778FE000-memory.dmp

Filesize
1.6MB

Download
memory/5052-189-0x0000000077770000-0x00000000778FE000-memory.dmp

Filesize
1.6MB

Download
memory/5052-221-0x00000000008C9000-0x00000000008DA000-memory.dmp

Filesize
68KB

Download