smokeloader | cb6bc46cca8c4a02ccc895bbfdd99c5b0c9b9da0d68db1f1f67c8c79927c96ca

Analysis

max time kernel
150s
max time network
146s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
23/12/2022, 04:59

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General

Target

file.exe
Size

317KB
MD5

10872de5816c70fabfbe7e2f52606aea
SHA1

ae4428d3fe5e91b9a80eca5fca493daf1f75307f
SHA256

cb6bc46cca8c4a02ccc895bbfdd99c5b0c9b9da0d68db1f1f67c8c79927c96ca
SHA512

f87d5e706f6844805a82e777956f56c72eebd6f9764b81038ae0df6c85efebf3ac747dc05e7170b9d4fa1e5f01f36491b0abb9d703334d74cd3aabdf9a8b502f
SSDEEP

6144:bOLlWjbhngthT0AuSj77dBqIbwOnHRR0cSpQTtyzsduHNIv:bOxWjcT0Aua/9wOnHRR0TCtyYduHNI

Score

10^/10

smokeloader backdoor trojan

Malware Config

Signatures

Detects Smokeloader packer 6 IoCs

resource	yara_rule
behavioral2/memory/4532-133-0x0000000000400000-0x0000000000409000-memory.dmp	family_smokeloader
behavioral2/memory/528-135-0x00000000006F0000-0x00000000006F9000-memory.dmp	family_smokeloader
behavioral2/memory/4532-136-0x0000000000400000-0x0000000000409000-memory.dmp	family_smokeloader
behavioral2/memory/4532-137-0x0000000000400000-0x0000000000409000-memory.dmp	family_smokeloader
behavioral2/memory/1784-144-0x0000000000400000-0x0000000000409000-memory.dmp	family_smokeloader
behavioral2/memory/1784-145-0x0000000000400000-0x0000000000409000-memory.dmp	family_smokeloader

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

Executes dropped EXE 2 IoCs

pid	Process
2300	vvhebbj
1784	vvhebbj

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 528 set thread context of 4532	528	file.exe	81
PID 2300 set thread context of 1784	2300	vvhebbj	90

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	file.exe
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	file.exe
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	file.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	vvhebbj
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	vvhebbj
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	vvhebbj

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
4532	file.exe
4532	file.exe
1396	Process not Found
1396	Process not Found
1396	Process not Found
1396	Process not Found
1396	Process not Found
1396	Process not Found
1396	Process not Found
1396	Process not Found
1396	Process not Found
1396	Process not Found
1396	Process not Found
1396	Process not Found
1396	Process not Found
1396	Process not Found
1396	Process not Found
1396	Process not Found
1396	Process not Found
1396	Process not Found
1396	Process not Found
1396	Process not Found
1396	Process not Found
1396	Process not Found
1396	Process not Found
1396	Process not Found
1396	Process not Found
1396	Process not Found
1396	Process not Found
1396	Process not Found
1396	Process not Found
1396	Process not Found
1396	Process not Found
1396	Process not Found
1396	Process not Found
1396	Process not Found
1396	Process not Found
1396	Process not Found
1396	Process not Found
1396	Process not Found
1396	Process not Found
1396	Process not Found
1396	Process not Found
1396	Process not Found
1396	Process not Found
1396	Process not Found
1396	Process not Found
1396	Process not Found
1396	Process not Found
1396	Process not Found
1396	Process not Found
1396	Process not Found
1396	Process not Found
1396	Process not Found
1396	Process not Found
1396	Process not Found
1396	Process not Found
1396	Process not Found
1396	Process not Found
1396	Process not Found
1396	Process not Found
1396	Process not Found
1396	Process not Found
1396	Process not Found

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1396	Process not Found

Suspicious behavior: MapViewOfSection 2 IoCs

pid	Process
4532	file.exe
1784	vvhebbj

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	1396	Process not Found
Token: SeCreatePagefilePrivilege	1396	Process not Found

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 528 wrote to memory of 4532	528	file.exe	81
PID 528 wrote to memory of 4532	528	file.exe	81
PID 528 wrote to memory of 4532	528	file.exe	81
PID 528 wrote to memory of 4532	528	file.exe	81
PID 528 wrote to memory of 4532	528	file.exe	81
PID 528 wrote to memory of 4532	528	file.exe	81
PID 2300 wrote to memory of 1784	2300	vvhebbj	90
PID 2300 wrote to memory of 1784	2300	vvhebbj	90
PID 2300 wrote to memory of 1784	2300	vvhebbj	90
PID 2300 wrote to memory of 1784	2300	vvhebbj	90
PID 2300 wrote to memory of 1784	2300	vvhebbj	90
PID 2300 wrote to memory of 1784	2300	vvhebbj	90

C:\Users\Admin\AppData\Local\Temp\file.exe
"C:\Users\Admin\AppData\Local\Temp\file.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:528
- C:\Users\Admin\AppData\Local\Temp\file.exe
  "C:\Users\Admin\AppData\Local\Temp\file.exe"
  2⤵
  - Checks SCSI registry key(s)
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  PID:4532

C:\Users\Admin\AppData\Roaming\vvhebbj
C:\Users\Admin\AppData\Roaming\vvhebbj
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2300
- C:\Users\Admin\AppData\Roaming\vvhebbj
  C:\Users\Admin\AppData\Roaming\vvhebbj
  2⤵
  - Executes dropped EXE
  - Checks SCSI registry key(s)
  - Suspicious behavior: MapViewOfSection
  PID:1784

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\vvhebbj

Filesize
317KB

MD5
10872de5816c70fabfbe7e2f52606aea

SHA1
ae4428d3fe5e91b9a80eca5fca493daf1f75307f

SHA256
cb6bc46cca8c4a02ccc895bbfdd99c5b0c9b9da0d68db1f1f67c8c79927c96ca

SHA512
f87d5e706f6844805a82e777956f56c72eebd6f9764b81038ae0df6c85efebf3ac747dc05e7170b9d4fa1e5f01f36491b0abb9d703334d74cd3aabdf9a8b502f

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

Filesize
317KB

MD5
10872de5816c70fabfbe7e2f52606aea

SHA1
ae4428d3fe5e91b9a80eca5fca493daf1f75307f

SHA256
cb6bc46cca8c4a02ccc895bbfdd99c5b0c9b9da0d68db1f1f67c8c79927c96ca

SHA512
f87d5e706f6844805a82e777956f56c72eebd6f9764b81038ae0df6c85efebf3ac747dc05e7170b9d4fa1e5f01f36491b0abb9d703334d74cd3aabdf9a8b502f

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

Filesize
317KB

MD5
10872de5816c70fabfbe7e2f52606aea

SHA1
ae4428d3fe5e91b9a80eca5fca493daf1f75307f

SHA256
cb6bc46cca8c4a02ccc895bbfdd99c5b0c9b9da0d68db1f1f67c8c79927c96ca

SHA512
f87d5e706f6844805a82e777956f56c72eebd6f9764b81038ae0df6c85efebf3ac747dc05e7170b9d4fa1e5f01f36491b0abb9d703334d74cd3aabdf9a8b502f

Download Submit
memory/528-135-0x00000000006F0000-0x00000000006F9000-memory.dmp

Filesize
36KB

Download
memory/528-134-0x000000000078F000-0x00000000007A4000-memory.dmp

Filesize
84KB

Download
memory/1784-144-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/1784-145-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2300-143-0x000000000048E000-0x00000000004A3000-memory.dmp

Filesize
84KB

Download
memory/4532-136-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/4532-137-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/4532-133-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download