smokeloader | dddb1986e75b4e018479c53776892814d67cef7bc99f2af657727502e138a06a

Analysis

max time kernel
100s
max time network
100s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
31-08-2024 00:41

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General

Target

s5357799.exe
Size

249KB
MD5

5a458ff788c3a84a1596d354711618bd
SHA1

beefcb258cce7f4d5f4fd988878906ecd022147f
SHA256

5a82a81ce03a53acdbf59649a463f5b382413e5be775b381b442d607157f18d4
SHA512

0cc48ee0887b8d471a449bb2aee562d6c3ed8f31c157f9c618e99948e9f4d1bbec4d38aaef1cbd77908673e424794e77e74ee96d4cb83c65b6ac59b8b725e80b
SSDEEP

6144:LTcaGEZt20ZSwbz8+Dxe8kVAOllbp7iwh8Ey:LTFzZtT78T31Riwh8Ey

Score

10^/10

smokeloader backdoor discovery trojan

Malware Config

Signatures

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

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4140 set thread context of 4388	4140	s5357799.exe	87

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	s5357799.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 queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	AppLaunch.exe
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	AppLaunch.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	AppLaunch.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4140 wrote to memory of 4388	4140	s5357799.exe	87
PID 4140 wrote to memory of 4388	4140	s5357799.exe	87
PID 4140 wrote to memory of 4388	4140	s5357799.exe	87
PID 4140 wrote to memory of 4388	4140	s5357799.exe	87
PID 4140 wrote to memory of 4388	4140	s5357799.exe	87
PID 4140 wrote to memory of 4388	4140	s5357799.exe	87

C:\Users\Admin\AppData\Local\Temp\s5357799.exe
"C:\Users\Admin\AppData\Local\Temp\s5357799.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4140
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"
  2⤵
  - Checks SCSI registry key(s)
  PID:4388

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

memory/4388-0-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/4388-1-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/4388-2-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download