smokeloader | 39f93bf9c8075a8fdf1e55593313db8dff9e2c234edc5b2854da91e83fa06657

Analysis

max time kernel
159s
max time network
287s
platform
windows10-2004_x64
resource
win10v2004-20250314-en
resource tags

arch:x64arch:x86image:win10v2004-20250314-enlocale:en-usos:windows10-2004-x64system
submitted
18/03/2025, 02:37

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General

Target

39f93bf9c8075a8fdf1e55593313db8dff9e2c234edc5b2854da91e83fa06657.exe
Size

228KB
MD5

6dd21638dac079e394096b1b018d5638
SHA1

b57f820d6bda6109f67155a5636965b034fd96d2
SHA256

39f93bf9c8075a8fdf1e55593313db8dff9e2c234edc5b2854da91e83fa06657
SHA512

9b9d808236d9c432b9c9d87e5812daa99b3d0cf31c34da8477713dd575b5f0b9a05b362e367f530815a1e1a10789ae1aa93f9759e42fe309eea7f05b9a5e0d27
SSDEEP

3072:Ar9ft1WgkACOZVw+UmB4dlXny76VrY4TKQHBAgzVLK0ImGTXuVnuBZ40Uda:AEdtKyVHRxBBYDmeuRCZ40

Score

10^/10

smokeloader rbrn backdoor discovery trojan

Malware Config

Extracted

Family

smokeloader

Botnet

rbrn

Signatures

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

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4304	4692	WerFault.exe	85

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	39f93bf9c8075a8fdf1e55593313db8dff9e2c234edc5b2854da91e83fa06657.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	39f93bf9c8075a8fdf1e55593313db8dff9e2c234edc5b2854da91e83fa06657.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	39f93bf9c8075a8fdf1e55593313db8dff9e2c234edc5b2854da91e83fa06657.exe
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	39f93bf9c8075a8fdf1e55593313db8dff9e2c234edc5b2854da91e83fa06657.exe

C:\Users\Admin\AppData\Local\Temp\39f93bf9c8075a8fdf1e55593313db8dff9e2c234edc5b2854da91e83fa06657.exe
"C:\Users\Admin\AppData\Local\Temp\39f93bf9c8075a8fdf1e55593313db8dff9e2c234edc5b2854da91e83fa06657.exe"
1⤵
- System Location Discovery: System Language Discovery
- Checks SCSI registry key(s)
PID:4692
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4692 -s 352
  2⤵
  - Program crash
  PID:4304

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 4692 -ip 4692
1⤵
PID:2008

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/4692-1-0x0000000000600000-0x0000000000700000-memory.dmp

Filesize
1024KB

Download
memory/4692-2-0x00000000005E0000-0x00000000005EB000-memory.dmp

Filesize
44KB

Download
memory/4692-3-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4692-6-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4692-5-0x00000000005E0000-0x00000000005EB000-memory.dmp

Filesize
44KB

Download
memory/4692-4-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download