smokeloader | b4bfdfb61a3ea4cc57e65b8810c972872881763a613923364e4e572a07054a72

Analysis

max time kernel
92s
max time network
94s
platform
windows11-21h2_x64
resource
win11-20240426-en
resource tags

arch:x64arch:x86image:win11-20240426-enlocale:en-usos:windows11-21h2-x64system
submitted
27-05-2024 23:23

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General

Target

b4bfdfb61a3ea4cc57e65b8810c972872881763a613923364e4e572a07054a72.exe
Size

257KB
MD5

008d0dd6970cf588d5538aa84ca98238
SHA1

f56386b9af372047a12f9b0a5fbb0497ac65b2d9
SHA256

b4bfdfb61a3ea4cc57e65b8810c972872881763a613923364e4e572a07054a72
SHA512

a15ae3ceaa6651b5b6c19d501e3b936063ca9efc03edeba646a8cea60bfdd295b57c09853f7db4d210fabdfca9541299f1d1978fd8b888aa0ce10f965625f72a
SSDEEP

3072:eYUTYLpQTrvEs//o14GGhmVn5OwKhLuUe:eY5a4so1bGhmV4wKhLTe

Score

10^/10

smokeloader pub1 backdoor trojan

Malware Config

Extracted

Family

smokeloader

Botnet

pub1

Signatures

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

Processes:

WerFault.exe

pid pid_target process target process

3936 5052 WerFault.exe b4bfdfb61a3ea4cc57e65b8810c972872881763a613923364e4e572a07054a72.exe

pid	pid_target	process	target process
3936	5052	WerFault.exe	b4bfdfb61a3ea4cc57e65b8810c972872881763a613923364e4e572a07054a72.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

Processes:

b4bfdfb61a3ea4cc57e65b8810c972872881763a613923364e4e572a07054a72.exe

description	ioc	process
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	b4bfdfb61a3ea4cc57e65b8810c972872881763a613923364e4e572a07054a72.exe
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	b4bfdfb61a3ea4cc57e65b8810c972872881763a613923364e4e572a07054a72.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	b4bfdfb61a3ea4cc57e65b8810c972872881763a613923364e4e572a07054a72.exe

C:\Users\Admin\AppData\Local\Temp\b4bfdfb61a3ea4cc57e65b8810c972872881763a613923364e4e572a07054a72.exe
"C:\Users\Admin\AppData\Local\Temp\b4bfdfb61a3ea4cc57e65b8810c972872881763a613923364e4e572a07054a72.exe"
1⤵
- Checks SCSI registry key(s)
PID:5052

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 5052 -s 384
2⤵
- Program crash
PID:3936

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 5052 -ip 5052
1⤵
PID:4624

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

memory/5052-3-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/5052-2-0x00000000021F0000-0x00000000021FB000-memory.dmp

Filesize
44KB

Download
memory/5052-1-0x0000000002240000-0x0000000002340000-memory.dmp

Filesize
1024KB

Download
memory/5052-4-0x0000000000400000-0x0000000001F8C000-memory.dmp

Filesize
27.5MB

Download