smokeloader | 60b290310f67adb0ae186b4b938ca466a6b55653b2519261fa425127f5500a1f

max time kernel
149s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
02-09-2024 02:26

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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
2340	SmokeLoader.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3764 set thread context of 2340	3764	SmokeLoader.exe	83

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

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3764 wrote to memory of 2340	3764	SmokeLoader.exe	83
PID 3764 wrote to memory of 2340	3764	SmokeLoader.exe	83
PID 3764 wrote to memory of 2340	3764	SmokeLoader.exe	83
PID 3764 wrote to memory of 2340	3764	SmokeLoader.exe	83
PID 3764 wrote to memory of 2340	3764	SmokeLoader.exe	83
PID 3764 wrote to memory of 2340	3764	SmokeLoader.exe	83

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:3764
- 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:2340

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

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

Filesize
1.6MB

MD5
4f3387277ccbd6d1f21ac5c07fe4ca68

SHA1
e16506f662dc92023bf82def1d621497c8ab5890

SHA256
767a3fc4a7a6818cdc3f0b99aaa95db694f6bcde719d2057a88b3d4df3d74fac

SHA512
9da199ac69e3c0d4e0c6307e0ab8178f12cc25cb2f14c3511f6b64e6e60a925c860f3263cb38353a97b55a71ef4d27f8cb7fa3cfc08e7c1a349fd8d209dfa219

Download Submit
memory/2340-4-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download
memory/2340-3-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download
memory/2340-8-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download
memory/3764-2-0x0000000000A10000-0x0000000000A1B000-memory.dmp

Filesize
44KB

Download
memory/3764-1-0x0000000000A70000-0x0000000000B70000-memory.dmp

Filesize
1024KB

Download

Resubmissions

Analysis