smokeloader | f403e5db7055c16c5608a7c5c5e8d72541f88a83720b84f6ee2a8ed7212f75a8

Analysis

max time kernel
121s
max time network
121s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
09-11-2024 09:59

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General

Target

7zS850A099E/61e74fda51500_Tue23260baecb.exe
Size

266KB
MD5

49edc32bbb405b39d7f2b7fe1b8df04f
SHA1

e6dd0214ee693e6b90ba1293c840327894772644
SHA256

5a14c836ca0af97881c91393b48232f81953b304acab8e42abf562cb02971f0a
SHA512

da0c36951c498d43d243fa28a153e90336ca49277f08c3a282914293958876c55ad72b26535575a344d4553fb30f5aa517d386e58960fa10358d56f9dbd3cc54
SSDEEP

3072:km9WbwvfxwTqXJSglK49OJUXcEm1vU/yqZVM/h3:0bwhw+JSg9OSch0hZV

Score

10^/10

smokeloader pub5 backdoor discovery trojan

Malware Config

Extracted

Family

smokeloader

Botnet

pub5

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

2776 2700 WerFault.exe 61e74fda51500_Tue23260baecb.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:

61e74fda51500_Tue23260baecb.exe

description ioc process

Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 61e74fda51500_Tue23260baecb.exe

pid	pid_target	process	target process
2776	2700	WerFault.exe	61e74fda51500_Tue23260baecb.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	61e74fda51500_Tue23260baecb.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

61e74fda51500_Tue23260baecb.exe

description	pid	process	target process
PID 2700 wrote to memory of 2776	2700	61e74fda51500_Tue23260baecb.exe	WerFault.exe
PID 2700 wrote to memory of 2776	2700	61e74fda51500_Tue23260baecb.exe	WerFault.exe
PID 2700 wrote to memory of 2776	2700	61e74fda51500_Tue23260baecb.exe	WerFault.exe
PID 2700 wrote to memory of 2776	2700	61e74fda51500_Tue23260baecb.exe	WerFault.exe

C:\Users\Admin\AppData\Local\Temp\7zS850A099E\61e74fda51500_Tue23260baecb.exe
"C:\Users\Admin\AppData\Local\Temp\7zS850A099E\61e74fda51500_Tue23260baecb.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2700
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2700 -s 136
  2⤵
  - Program crash
  PID:2776

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/2700-1-0x0000000000030000-0x0000000000039000-memory.dmp

Filesize
36KB

Download
memory/2700-0-0x0000000000020000-0x0000000000028000-memory.dmp

Filesize
32KB

Download
memory/2700-2-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2700-3-0x0000000000400000-0x000000000044A000-memory.dmp

Filesize
296KB

Download
memory/2700-7-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2700-6-0x0000000000020000-0x0000000000028000-memory.dmp

Filesize
32KB

Download
memory/2700-5-0x0000000000030000-0x0000000000039000-memory.dmp

Filesize
36KB

Download