smokeloader | 60b290310f67adb0ae186b4b938ca466a6b55653b2519261fa425127f5500a1f

max time kernel
133s
max time network
142s
platform
windows10-1703_x64
resource
win10-20240404-en
resource tags

arch:x64arch:x86image:win10-20240404-enlocale:en-usos:windows10-1703-x64system
submitted
02-09-2024 02:27

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General

Target

Trojan/SmokeLoader.exe
Size

251KB
MD5

924aa6c26f6f43e0893a40728eac3b32
SHA1

baa9b4c895b09d315ed747b3bd087f4583aa84fc
SHA256

30f9db1f5838abb6c1580fdfb7f5dcfd7c2ac8cfac50c2edd0c8415d66212c95
SHA512

3cb6fd659aff46eaa62b0e647ccebeecb070ba0bb27e1cc037b33caf23c417e75f476e1c08e1b5f3b232c4640995ae5afa43bfd09252d318fe5eec0d18de830a
SSDEEP

6144:2E5sHpScP2xeQhp4wGoqPKNDF50AsurB:PsHIiQv4gBNDFiTuF

Score

10^/10

smokeloader backdoor discovery trojan

Malware Config

Signatures

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

Loads dropped DLL 1 IoCs

pid	Process
3744	SmokeLoader.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1124 set thread context of 3744	1124	SmokeLoader.exe	75

System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	SmokeLoader.exe

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

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1124 wrote to memory of 3744	1124	SmokeLoader.exe	75
PID 1124 wrote to memory of 3744	1124	SmokeLoader.exe	75
PID 1124 wrote to memory of 3744	1124	SmokeLoader.exe	75
PID 1124 wrote to memory of 3744	1124	SmokeLoader.exe	75
PID 1124 wrote to memory of 3744	1124	SmokeLoader.exe	75
PID 1124 wrote to memory of 3744	1124	SmokeLoader.exe	75

C:\Users\Admin\AppData\Local\Temp\Trojan\SmokeLoader.exe
"C:\Users\Admin\AppData\Local\Temp\Trojan\SmokeLoader.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1124
- C:\Users\Admin\AppData\Local\Temp\Trojan\SmokeLoader.exe
  "C:\Users\Admin\AppData\Local\Temp\Trojan\SmokeLoader.exe"
  2⤵
  - Loads dropped DLL
  - Checks SCSI registry key(s)
  PID:3744

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

\Users\Admin\AppData\Local\Temp\D47F.tmp

Filesize
1.5MB

MD5
50741b3f2d7debf5d2bed63d88404029

SHA1
56210388a627b926162b36967045be06ffb1aad3

SHA256
f2f8732ae464738372ff274b7e481366cecdd2337210d4a3cbcd089c958a730c

SHA512
fac6bfe35b1ee08b3d42d330516a260d9cdb4a90bbb0491411a583029b92a59d20af3552372ea8fb3f59442b3945bf524ef284127f397ae7179467080be8e9b3

Download Submit
memory/1124-1-0x0000000000A60000-0x0000000000B60000-memory.dmp

Filesize
1024KB

Download
memory/1124-2-0x00000000001C0000-0x00000000001CB000-memory.dmp

Filesize
44KB

Download
memory/3744-3-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download
memory/3744-4-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download
memory/3744-8-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download

Resubmissions

Analysis