smokeloader | 4a4d08f86c3a9ca83fe3bb6e3525e23585b08577a8ad4c6519d12a651d05c9e5

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
14-05-2024 15:54

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General

Target

4a4d08f86c3a9ca83fe3bb6e3525e23585b08577a8ad4c6519d12a651d05c9e5.exe
Size

224KB
MD5

be767e08bb0bbc5b09054535fb5d304f
SHA1

115bcd15f5b39f10eb8de7af7c6a58ba5348e2f4
SHA256

4a4d08f86c3a9ca83fe3bb6e3525e23585b08577a8ad4c6519d12a651d05c9e5
SHA512

dfb643aa19f938e966dbd4e165b196d87d2f8bdea399564dd013355a8020461b3c6165e10a843355ed5d09d1e4bfde396644e6227c2e33b220d3c74b55501f2d
SSDEEP

3072:o0oOq8Z9xnnXymaLhr+9BtZOXSOaPjPcY2jm1ZYBsG7g2RM5HyV6:c675Aru3OwIv0ZYqUdW5HW

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

4892 4984 WerFault.exe 4a4d08f86c3a9ca83fe3bb6e3525e23585b08577a8ad4c6519d12a651d05c9e5.exe

pid	pid_target	process	target process
4892	4984	WerFault.exe	4a4d08f86c3a9ca83fe3bb6e3525e23585b08577a8ad4c6519d12a651d05c9e5.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:

4a4d08f86c3a9ca83fe3bb6e3525e23585b08577a8ad4c6519d12a651d05c9e5.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	4a4d08f86c3a9ca83fe3bb6e3525e23585b08577a8ad4c6519d12a651d05c9e5.exe
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	4a4d08f86c3a9ca83fe3bb6e3525e23585b08577a8ad4c6519d12a651d05c9e5.exe
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	4a4d08f86c3a9ca83fe3bb6e3525e23585b08577a8ad4c6519d12a651d05c9e5.exe

C:\Users\Admin\AppData\Local\Temp\4a4d08f86c3a9ca83fe3bb6e3525e23585b08577a8ad4c6519d12a651d05c9e5.exe
"C:\Users\Admin\AppData\Local\Temp\4a4d08f86c3a9ca83fe3bb6e3525e23585b08577a8ad4c6519d12a651d05c9e5.exe"
1⤵
- Checks SCSI registry key(s)
PID:4984

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4984 -s 384
2⤵
- Program crash
PID:4892

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 4984 -ip 4984
1⤵
PID:4828

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

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Downloads

memory/4984-1-0x0000000000A50000-0x0000000000B50000-memory.dmp

Filesize
1024KB

Download
memory/4984-2-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4984-3-0x0000000000400000-0x000000000078F000-memory.dmp

Filesize
3.6MB

Download
memory/4984-4-0x0000000000400000-0x000000000078F000-memory.dmp

Filesize
3.6MB

Download
memory/4984-5-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download