smokeloader | 2391e7b7971559b94bbd02aa7c76f0e57b3d1a4b8e0d3a2069fc687379de8fd2

Analysis

max time kernel
90s
max time network
93s
platform
windows11-21h2_x64
resource
win11-20240426-en
resource tags

arch:x64arch:x86image:win11-20240426-enlocale:en-usos:windows11-21h2-x64system
submitted
14-05-2024 19:17

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General

Target

2391e7b7971559b94bbd02aa7c76f0e57b3d1a4b8e0d3a2069fc687379de8fd2.exe
Size

225KB
MD5

bcf7528fb26d12fd72ecfba62877dc5e
SHA1

b5f6a04f39e30094974ea5d165a132a460bfa90a
SHA256

2391e7b7971559b94bbd02aa7c76f0e57b3d1a4b8e0d3a2069fc687379de8fd2
SHA512

d9ac7e572d2d943a7f3b657466bfa5431d78d3a1168b7df7ab351d95503593d021398713c93ef2cddca89ec496411babb7c5e8ef3dd4b7abea854f4902c69c99
SSDEEP

3072:qwqwyb6WNd4uXGOrrr9T++BSc+Ke+sboxup4qqFaF8VqmKOisDgN28h4Q:4792ur9TkA8TGq0aF8VOugNr6

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

3504 1000 WerFault.exe 2391e7b7971559b94bbd02aa7c76f0e57b3d1a4b8e0d3a2069fc687379de8fd2.exe

pid	pid_target	process	target process
3504	1000	WerFault.exe	2391e7b7971559b94bbd02aa7c76f0e57b3d1a4b8e0d3a2069fc687379de8fd2.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:

2391e7b7971559b94bbd02aa7c76f0e57b3d1a4b8e0d3a2069fc687379de8fd2.exe

description	ioc	process
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	2391e7b7971559b94bbd02aa7c76f0e57b3d1a4b8e0d3a2069fc687379de8fd2.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	2391e7b7971559b94bbd02aa7c76f0e57b3d1a4b8e0d3a2069fc687379de8fd2.exe
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	2391e7b7971559b94bbd02aa7c76f0e57b3d1a4b8e0d3a2069fc687379de8fd2.exe

C:\Users\Admin\AppData\Local\Temp\2391e7b7971559b94bbd02aa7c76f0e57b3d1a4b8e0d3a2069fc687379de8fd2.exe
"C:\Users\Admin\AppData\Local\Temp\2391e7b7971559b94bbd02aa7c76f0e57b3d1a4b8e0d3a2069fc687379de8fd2.exe"
1⤵
- Checks SCSI registry key(s)
PID:1000

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1000 -s 484
2⤵
- Program crash
PID:3504

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 1000 -ip 1000
1⤵
PID:728

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1000-1-0x0000000000A30000-0x0000000000B30000-memory.dmp

Filesize
1024KB

Download
memory/1000-3-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/1000-2-0x00000000008D0000-0x00000000008DB000-memory.dmp

Filesize
44KB

Download
memory/1000-4-0x0000000000400000-0x000000000078F000-memory.dmp

Filesize
3.6MB

Download