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
307s
max time network
378s
platform
windows10_x64
resource
win10v20201028
submitted
19-11-2020 10:08

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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

1500 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 816 set thread context of 1500 816 2019-09-02_22-41-10.exe 2019-09-02_22-41-10.exe

pid	process
1500	2019-09-02_22-41-10.exe

description	pid	process	target process
PID 816 set thread context of 1500	816	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 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

Processes:

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

pid process

1500 2019-09-02_22-41-10.exe
1500 2019-09-02_22-41-10.exe

pid	process
1500	2019-09-02_22-41-10.exe
1500	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 816 wrote to memory of 1500	816	2019-09-02_22-41-10.exe	2019-09-02_22-41-10.exe
PID 816 wrote to memory of 1500	816	2019-09-02_22-41-10.exe	2019-09-02_22-41-10.exe
PID 816 wrote to memory of 1500	816	2019-09-02_22-41-10.exe	2019-09-02_22-41-10.exe
PID 816 wrote to memory of 1500	816	2019-09-02_22-41-10.exe	2019-09-02_22-41-10.exe
PID 816 wrote to memory of 1500	816	2019-09-02_22-41-10.exe	2019-09-02_22-41-10.exe
PID 816 wrote to memory of 1500	816	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:816

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:1500

MITRE ATT&CK Matrix ATT&CK v6

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

Replay Monitor

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Downloads

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

Download Submit
memory/816-0-0x0000000000B86000-0x0000000000B98000-memory.dmp

Filesize
72KB

Download
memory/816-1-0x0000000000ED0000-0x0000000000ED1000-memory.dmp

Filesize
4KB

Download
memory/1500-2-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download
memory/1500-3-0x0000000000402CED-mapping.dmp

Download
memory/1500-5-0x0000000000560000-0x0000000000576000-memory.dmp

Filesize
88KB

Download
memory/3048-7-0x0000000000600000-0x0000000000601000-memory.dmp

Filesize
4KB

Download