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
121s
max time network
318s
platform
windows10_x64
resource
win10-en-20211104
submitted
12-11-2021 18:04

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General

Target

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

251KB
MD5

924aa6c26f6f43e0893a40728eac3b32
SHA1

baa9b4c895b09d315ed747b3bd087f4583aa84fc
SHA256

30f9db1f5838abb6c1580fdfb7f5dcfd7c2ac8cfac50c2edd0c8415d66212c95
SHA512

3cb6fd659aff46eaa62b0e647ccebeecb070ba0bb27e1cc037b33caf23c417e75f476e1c08e1b5f3b232c4640995ae5afa43bfd09252d318fe5eec0d18de830a

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
1976	2019-09-02_22-41-10.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1276 set thread context of 1976	1276	2019-09-02_22-41-10.exe	68

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
1976	2019-09-02_22-41-10.exe
1976	2019-09-02_22-41-10.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1276 wrote to memory of 1976	1276	2019-09-02_22-41-10.exe	68
PID 1276 wrote to memory of 1976	1276	2019-09-02_22-41-10.exe	68
PID 1276 wrote to memory of 1976	1276	2019-09-02_22-41-10.exe	68
PID 1276 wrote to memory of 1976	1276	2019-09-02_22-41-10.exe	68
PID 1276 wrote to memory of 1976	1276	2019-09-02_22-41-10.exe	68
PID 1276 wrote to memory of 1976	1276	2019-09-02_22-41-10.exe	68

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:1276
- 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:1976

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/1276-118-0x0000000000C37000-0x0000000000C45000-memory.dmp

Filesize
56KB

Download
memory/1276-119-0x0000000000030000-0x000000000003B000-memory.dmp

Filesize
44KB

Download
memory/1920-123-0x0000000000C80000-0x0000000000C81000-memory.dmp

Filesize
4KB

Download
memory/1920-124-0x0000000000CD0000-0x0000000000CE6000-memory.dmp

Filesize
88KB

Download
memory/1976-120-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download