smokeloader | f95c4a9c2b9106af8039629e43ca93d9079dceb7960f49dc77b8ae7a0e3e3c25

Analysis

max time kernel
91s
max time network
95s
platform
windows11-21h2_x64
resource
win11-20240419-en
resource tags

arch:x64arch:x86image:win11-20240419-enlocale:en-usos:windows11-21h2-x64system
submitted
01-05-2024 19:53

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General

Target

f95c4a9c2b9106af8039629e43ca93d9079dceb7960f49dc77b8ae7a0e3e3c25.exe
Size

259KB
MD5

d8a73e39f2b56637fa317cdadd6aa35e
SHA1

1fd8d602b58a6c74c0fec737d8a8818bfe21e77e
SHA256

f95c4a9c2b9106af8039629e43ca93d9079dceb7960f49dc77b8ae7a0e3e3c25
SHA512

32706d17566af1e75bcedbd441b38ccb7500a44d288baee820a1547e929467371ce88a130f21713fda3ff199c86ed36ba251b9b2f8e17b675dc9715b98656987
SSDEEP

1536:f6InnEHyf6c3fFp/bUk+GgIysb4PvjRBtmVuh9Dfjc5hVM4Zq7YQM0363B5WmwxE:fPpFpgIyl1jmArku7s5WmwSqg1fd

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

3432 2540 WerFault.exe f95c4a9c2b9106af8039629e43ca93d9079dceb7960f49dc77b8ae7a0e3e3c25.exe

pid	pid_target	process	target process
3432	2540	WerFault.exe	f95c4a9c2b9106af8039629e43ca93d9079dceb7960f49dc77b8ae7a0e3e3c25.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:

f95c4a9c2b9106af8039629e43ca93d9079dceb7960f49dc77b8ae7a0e3e3c25.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	f95c4a9c2b9106af8039629e43ca93d9079dceb7960f49dc77b8ae7a0e3e3c25.exe
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	f95c4a9c2b9106af8039629e43ca93d9079dceb7960f49dc77b8ae7a0e3e3c25.exe
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	f95c4a9c2b9106af8039629e43ca93d9079dceb7960f49dc77b8ae7a0e3e3c25.exe

C:\Users\Admin\AppData\Local\Temp\f95c4a9c2b9106af8039629e43ca93d9079dceb7960f49dc77b8ae7a0e3e3c25.exe
"C:\Users\Admin\AppData\Local\Temp\f95c4a9c2b9106af8039629e43ca93d9079dceb7960f49dc77b8ae7a0e3e3c25.exe"
1⤵
- Checks SCSI registry key(s)
PID:2540

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2540 -s 384
2⤵
- Program crash
PID:3432

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 372 -p 2540 -ip 2540
1⤵
PID:2904

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/2540-2-0x0000000002C90000-0x0000000002C9B000-memory.dmp

Filesize
44KB

Download
memory/2540-3-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2540-1-0x0000000002CF0000-0x0000000002DF0000-memory.dmp

Filesize
1024KB

Download
memory/2540-5-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2540-4-0x0000000000400000-0x0000000002AFF000-memory.dmp

Filesize
39.0MB

Download