smokeloader | 390d7472201e8ea9bdc6c7fa2b4ab1f6faca02071f1f997037cc5f52759a9cb6

Resubmissions

12-11-2021 18:04

211112-wnzb8aahhm 10

19-11-2020 10:08

201119-rhwlt38jrx 10

18-11-2020 17:26

201118-htd4fq29va 10

Analysis

max time kernel
305s
max time network
344s
platform
windows10_x64
resource
win10v20201028
submitted
18-11-2020 17:26

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General

Target

2019-09-02_22-41-10.exe

Score

10^/10

smokeloader backdoor trojan

Malware Config

Extracted

Family

smokeloader

Version

2019

http://advertserv25.world/logstatx77/

http://mailstatm74.club/logstatx77/

http://kxservx7zx.club/logstatx77/

http://dsmail977sx.xyz/logstatx77/

http://fdmail709.club/logstatx77/

http://servicestar751.club/logstatx77/

http://staradvert9075.club/logstatx77/

http://staradvert1883.club/logstatx77/

rc4.i32

Signatures

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

Loads dropped DLL 1 IoCs

pid	Process
3064	2019-09-02_22-41-10.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 692 set thread context of 3064	692	2019-09-02_22-41-10.exe	75

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 opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	2019-09-02_22-41-10.exe
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	2019-09-02_22-41-10.exe
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	2019-09-02_22-41-10.exe

Suspicious behavior: MapViewOfSection 2 IoCs

pid	Process
3064	2019-09-02_22-41-10.exe
3064	2019-09-02_22-41-10.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 692 wrote to memory of 3064	692	2019-09-02_22-41-10.exe	75
PID 692 wrote to memory of 3064	692	2019-09-02_22-41-10.exe	75
PID 692 wrote to memory of 3064	692	2019-09-02_22-41-10.exe	75
PID 692 wrote to memory of 3064	692	2019-09-02_22-41-10.exe	75
PID 692 wrote to memory of 3064	692	2019-09-02_22-41-10.exe	75
PID 692 wrote to memory of 3064	692	2019-09-02_22-41-10.exe	75

C:\Users\Admin\AppData\Local\Temp\2019-09-02_22-41-10.exe
"C:\Users\Admin\AppData\Local\Temp\2019-09-02_22-41-10.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:692
- C:\Users\Admin\AppData\Local\Temp\2019-09-02_22-41-10.exe
  "C:\Users\Admin\AppData\Local\Temp\2019-09-02_22-41-10.exe"
  2⤵
  - Loads dropped DLL
  - Checks SCSI registry key(s)
  - Suspicious behavior: MapViewOfSection
  PID:3064

Network

MITRE ATT&CK Enterprise v6

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/692-0-0x0000000000A86000-0x0000000000A98000-memory.dmp

Filesize
72KB

Download
memory/692-1-0x0000000000F60000-0x0000000000F61000-memory.dmp

Filesize
4KB

Download
memory/2864-6-0x0000000000E50000-0x0000000000E51000-memory.dmp

Filesize
4KB

Download
memory/3064-2-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download
memory/3064-5-0x00000000004B0000-0x00000000004C6000-memory.dmp

Filesize
88KB

Download