smokeloader | fc7291f973855f25f8bd569f39d97cda140726b6e3af6ae0262d98e23f40f46f

Analysis

max time kernel
93s
max time network
134s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
09-11-2024 14:16

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General

Target

fc7291f973855f25f8bd569f39d97cda140726b6e3af6ae0262d98e23f40f46f.exe
Size

327KB
MD5

6d4f67848e786a5960ff5d4cd0a7b779
SHA1

43f915c59a332a77819ce4c66eaa0559ea5850c4
SHA256

fc7291f973855f25f8bd569f39d97cda140726b6e3af6ae0262d98e23f40f46f
SHA512

f731ea25fc5f486802df27e7599dac3d2348a4cd294c6a8a227d5f4c932be3266401dd0fe4c957cbd619d7b6ebd262791e1f870f6224b226374ecd7a14e62a03
SSDEEP

6144:uV2Wn+BJeujmW0XPMFGMDYu5UmLH+66IclZH28RMci77e+:uVCJeujzoMFGMDYu+mLH+6N+W8RFiPe

Score

10^/10

smokeloader pub1 backdoor discovery trojan

Malware Config

Extracted

Family

smokeloader

Botnet

pub1

Signatures

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

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3672 set thread context of 2916	3672	fc7291f973855f25f8bd569f39d97cda140726b6e3af6ae0262d98e23f40f46f.exe	86

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	fc7291f973855f25f8bd569f39d97cda140726b6e3af6ae0262d98e23f40f46f.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	fc7291f973855f25f8bd569f39d97cda140726b6e3af6ae0262d98e23f40f46f.exe
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	fc7291f973855f25f8bd569f39d97cda140726b6e3af6ae0262d98e23f40f46f.exe
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	fc7291f973855f25f8bd569f39d97cda140726b6e3af6ae0262d98e23f40f46f.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3672 wrote to memory of 2916	3672	fc7291f973855f25f8bd569f39d97cda140726b6e3af6ae0262d98e23f40f46f.exe	86
PID 3672 wrote to memory of 2916	3672	fc7291f973855f25f8bd569f39d97cda140726b6e3af6ae0262d98e23f40f46f.exe	86
PID 3672 wrote to memory of 2916	3672	fc7291f973855f25f8bd569f39d97cda140726b6e3af6ae0262d98e23f40f46f.exe	86
PID 3672 wrote to memory of 2916	3672	fc7291f973855f25f8bd569f39d97cda140726b6e3af6ae0262d98e23f40f46f.exe	86
PID 3672 wrote to memory of 2916	3672	fc7291f973855f25f8bd569f39d97cda140726b6e3af6ae0262d98e23f40f46f.exe	86
PID 3672 wrote to memory of 2916	3672	fc7291f973855f25f8bd569f39d97cda140726b6e3af6ae0262d98e23f40f46f.exe	86

C:\Users\Admin\AppData\Local\Temp\fc7291f973855f25f8bd569f39d97cda140726b6e3af6ae0262d98e23f40f46f.exe
"C:\Users\Admin\AppData\Local\Temp\fc7291f973855f25f8bd569f39d97cda140726b6e3af6ae0262d98e23f40f46f.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3672
- C:\Users\Admin\AppData\Local\Temp\fc7291f973855f25f8bd569f39d97cda140726b6e3af6ae0262d98e23f40f46f.exe
  "C:\Users\Admin\AppData\Local\Temp\fc7291f973855f25f8bd569f39d97cda140726b6e3af6ae0262d98e23f40f46f.exe"
  2⤵
  - Checks SCSI registry key(s)
  PID:2916

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

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Downloads

memory/2916-3-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2916-4-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2916-7-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2916-5-0x0000000000410000-0x00000000004D9000-memory.dmp

Filesize
804KB

Download
memory/3672-1-0x0000000000770000-0x0000000000870000-memory.dmp

Filesize
1024KB

Download
memory/3672-2-0x00000000001C0000-0x00000000001C9000-memory.dmp

Filesize
36KB

Download