smokeloader | 1423053f90855d33858db47f354055b660943104c1c18f848c9b7b415979dc5f

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

Processes:

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

pid process

3988 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 4084 set thread context of 3988 4084 2019-09-02_22-41-10.exe 2019-09-02_22-41-10.exe

pid	process
3988	2019-09-02_22-41-10.exe

description	pid	process	target process
PID 4084 set thread context of 3988	4084	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

3988 2019-09-02_22-41-10.exe
3988 2019-09-02_22-41-10.exe

pid	process
3988	2019-09-02_22-41-10.exe
3988	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 4084 wrote to memory of 3988	4084	2019-09-02_22-41-10.exe	2019-09-02_22-41-10.exe
PID 4084 wrote to memory of 3988	4084	2019-09-02_22-41-10.exe	2019-09-02_22-41-10.exe
PID 4084 wrote to memory of 3988	4084	2019-09-02_22-41-10.exe	2019-09-02_22-41-10.exe
PID 4084 wrote to memory of 3988	4084	2019-09-02_22-41-10.exe	2019-09-02_22-41-10.exe
PID 4084 wrote to memory of 3988	4084	2019-09-02_22-41-10.exe	2019-09-02_22-41-10.exe
PID 4084 wrote to memory of 3988	4084	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:4084

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:3988

Network

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
MD5
50741b3f2d7debf5d2bed63d88404029

SHA1
56210388a627b926162b36967045be06ffb1aad3

SHA256
f2f8732ae464738372ff274b7e481366cecdd2337210d4a3cbcd089c958a730c

SHA512
fac6bfe35b1ee08b3d42d330516a260d9cdb4a90bbb0491411a583029b92a59d20af3552372ea8fb3f59442b3945bf524ef284127f397ae7179467080be8e9b3

Download Submit
memory/3068-9-0x0000000000780000-0x0000000000796000-memory.dmp

Filesize
88KB

Download
memory/3068-8-0x00000000007A0000-0x00000000007A1000-memory.dmp

Filesize
4KB

Download
memory/3988-4-0x0000000000402CED-mapping.dmp

Download
memory/3988-3-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download
memory/4084-2-0x0000000000DB0000-0x0000000000DB1000-memory.dmp

Filesize
4KB

Download
memory/4084-6-0x0000000000030000-0x000000000003B000-memory.dmp

Filesize
44KB

Download