smokeloader | 1423053f90855d33858db47f354055b660943104c1c18f848c9b7b415979dc5f

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Analysis

max time kernel
1696s
max time network
1697s
platform
windows10_x64
resource
win10v20201028
submitted
19-11-2020 13:14

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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

Processes:

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

pid process

3532 2019-09-02_22-41-10.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

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

description pid process target process

PID 1404 set thread context of 3532 1404 2019-09-02_22-41-10.exe 2019-09-02_22-41-10.exe

pid	process
3532	2019-09-02_22-41-10.exe

description	pid	process	target process
PID 1404 set thread context of 3532	1404	2019-09-02_22-41-10.exe	2019-09-02_22-41-10.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:

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

description	ioc	process
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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	2019-09-02_22-41-10.exe

Suspicious behavior: MapViewOfSection 2 IoCs

Processes:

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

pid process

3532 2019-09-02_22-41-10.exe
3532 2019-09-02_22-41-10.exe

pid	process
3532	2019-09-02_22-41-10.exe
3532	2019-09-02_22-41-10.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

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

description	pid	process	target process
PID 1404 wrote to memory of 3532	1404	2019-09-02_22-41-10.exe	2019-09-02_22-41-10.exe
PID 1404 wrote to memory of 3532	1404	2019-09-02_22-41-10.exe	2019-09-02_22-41-10.exe
PID 1404 wrote to memory of 3532	1404	2019-09-02_22-41-10.exe	2019-09-02_22-41-10.exe
PID 1404 wrote to memory of 3532	1404	2019-09-02_22-41-10.exe	2019-09-02_22-41-10.exe
PID 1404 wrote to memory of 3532	1404	2019-09-02_22-41-10.exe	2019-09-02_22-41-10.exe
PID 1404 wrote to memory of 3532	1404	2019-09-02_22-41-10.exe	2019-09-02_22-41-10.exe

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:1404

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:3532

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

\Users\Admin\AppData\Local\Temp\D47F.tmp

Download Submit
memory/1404-0-0x0000000000BD6000-0x0000000000BE8000-memory.dmp

Filesize
72KB

Download
memory/1404-1-0x0000000000F90000-0x0000000000F91000-memory.dmp

Filesize
4KB

Download
memory/3024-6-0x0000000000850000-0x0000000000851000-memory.dmp

Filesize
4KB

Download
memory/3532-2-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download
memory/3532-3-0x0000000000402CED-mapping.dmp

Download
memory/3532-5-0x0000000002050000-0x0000000002066000-memory.dmp

Filesize
88KB

Download