smokeloader | 20d558def304d8b34ded9723c23ba3efce8ccb084521fd3c4f6fc9a72aa5998e

Analysis

max time kernel
117s
max time network
118s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
09-11-2024 15:39

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General

Target

678535da9497b60d22bb742324909200.exe
Size

230KB
MD5

678535da9497b60d22bb742324909200
SHA1

e0554a5943a5d4254f98db55b177ab5f4b3ead8d
SHA256

20d558def304d8b34ded9723c23ba3efce8ccb084521fd3c4f6fc9a72aa5998e
SHA512

a86addf5c09cf780dbdf0ba6c18c0e11441c218c00aedce73c1232c01c5d3c6891c650a86d48cf1d59cd3f61dfc4358b20a6360a39bba51d2bb2b25e5ac8780f
SSDEEP

3072:kTB8wyMGF+estOgnLyc9faTycpMxZFgoRIbDfZ672iUbqMjSdadM/h3qpZa9uD6F:k8wk8JNB9kSFWbDx62q5dErwVfEz

Score

10^/10

smokeloader pub2 backdoor discovery trojan

Malware Config

Extracted

Family

smokeloader

Botnet

pub2

Signatures

SmokeLoader
Modular backdoor trojan in use since 2014.
trojan backdoor smokeloader
Smokeloader family
smokeloader
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

2024 2484 WerFault.exe 678535da9497b60d22bb742324909200.exe
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

Processes:

678535da9497b60d22bb742324909200.exe

description ioc process

Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 678535da9497b60d22bb742324909200.exe

pid	pid_target	process	target process
2024	2484	WerFault.exe	678535da9497b60d22bb742324909200.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	678535da9497b60d22bb742324909200.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

678535da9497b60d22bb742324909200.exe

description	pid	process	target process
PID 2484 wrote to memory of 2024	2484	678535da9497b60d22bb742324909200.exe	WerFault.exe
PID 2484 wrote to memory of 2024	2484	678535da9497b60d22bb742324909200.exe	WerFault.exe
PID 2484 wrote to memory of 2024	2484	678535da9497b60d22bb742324909200.exe	WerFault.exe
PID 2484 wrote to memory of 2024	2484	678535da9497b60d22bb742324909200.exe	WerFault.exe

C:\Users\Admin\AppData\Local\Temp\678535da9497b60d22bb742324909200.exe
"C:\Users\Admin\AppData\Local\Temp\678535da9497b60d22bb742324909200.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2484
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2484 -s 140
  2⤵
  - Program crash
  PID:2024

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/2484-1-0x0000000000530000-0x0000000000630000-memory.dmp

Filesize
1024KB

Download
memory/2484-3-0x0000000000400000-0x000000000049A000-memory.dmp

Filesize
616KB

Download
memory/2484-2-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download