smokeloader | 9913053ba47efd472cb78d5af642b2525a2a173e95598e555aebbd9d8a5f62f0

Analysis

max time kernel
90s
max time network
138s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
13-09-2024 22:23

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General

Target

wdhdref.exe
Size

403KB
MD5

5e7634b31f15921f3edf6dfa0aef28e0
SHA1

51464d65ff828b62d5f90237e4f3b74039ff7a02
SHA256

9913053ba47efd472cb78d5af642b2525a2a173e95598e555aebbd9d8a5f62f0
SHA512

787b0003c08724223eebff94506e200551304a246572bf34056982a3c47a7d899d1d21b010672be306df3520ae90ad17a60fbe4a5da55ea9a7175d65ecbaf541
SSDEEP

6144:ZLLMn4A0lTubbF3jvIpDae9t978L7nx2iSY:ZfM8T0b9r0z9f8JtT

Score

10^/10

smokeloader pub4 backdoor discovery trojan

Malware Config

Extracted

Family

smokeloader

Botnet

pub4

Signatures

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

Program crash 1 IoCs

pid	pid_target	Process	procid_target
396	4996	WerFault.exe	82

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	wdhdref.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	wdhdref.exe
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	wdhdref.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	wdhdref.exe

C:\Users\Admin\AppData\Local\Temp\wdhdref.exe
"C:\Users\Admin\AppData\Local\Temp\wdhdref.exe"
1⤵
- System Location Discovery: System Language Discovery
- Checks SCSI registry key(s)
PID:4996
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4996 -s 352
  2⤵
  - Program crash
  PID:396

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 4996 -ip 4996
1⤵
PID:1316

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/4996-1-0x00000000006C0000-0x00000000007C0000-memory.dmp

Filesize
1024KB

Download
memory/4996-2-0x0000000000670000-0x000000000067B000-memory.dmp

Filesize
44KB

Download
memory/4996-3-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4996-6-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4996-5-0x0000000000670000-0x000000000067B000-memory.dmp

Filesize
44KB

Download
memory/4996-4-0x0000000000400000-0x00000000005F7000-memory.dmp

Filesize
2.0MB

Download