smokeloader | 3201717abd45129769fd548e1b310f1f349f3440729ee800f23c6a5fdf7a8d5b

General

Target

3201717abd45129769fd548e1b310f1f349f3440729ee800f23c6a5fdf7a8d5b.exe
Size

392KB
MD5

13386d8d3d7fd0348522df0704d3c4cb
SHA1

dddd2bd201429c3d3bc8e08fdfc16003814f8cbc
SHA256

3201717abd45129769fd548e1b310f1f349f3440729ee800f23c6a5fdf7a8d5b
SHA512

c30e2c14573ae8222981cb39809c63d1f8b948c09e5ff45859478f4c6593df7b6ca15724e25f52c403dda1bedecc3cfd90ed18a374cfebb10e9e403ed5556f5b

Score

10^/10

smokeloader backdoor discovery trojan

Malware Config

Extracted

Family

smokeloader

Version

2018

C2

http://159.89.109.130/

http://cdvfrt5.com/

http://43trfdsds.com/

http://2344t554ddfr.com/

rc4.i32

Signatures

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

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

3201717abd45129769fd548e1b310f1f349f3440729ee800f23c6a5fdf7a8d5b.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Control Panel\International\Geo\Nation	3201717abd45129769fd548e1b310f1f349f3440729ee800f23c6a5fdf7a8d5b.exe

Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012

Maps connected drives based on registry 3 TTPs 2 IoCs

Disk information is often read in order to detect sandboxing environments.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

Processes:

3201717abd45129769fd548e1b310f1f349f3440729ee800f23c6a5fdf7a8d5b.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	3201717abd45129769fd548e1b310f1f349f3440729ee800f23c6a5fdf7a8d5b.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0	3201717abd45129769fd548e1b310f1f349f3440729ee800f23c6a5fdf7a8d5b.exe

Suspicious behavior: MapViewOfSection 2 IoCs

Processes:

3201717abd45129769fd548e1b310f1f349f3440729ee800f23c6a5fdf7a8d5b.exe

pid	process
1976	3201717abd45129769fd548e1b310f1f349f3440729ee800f23c6a5fdf7a8d5b.exe
1976	3201717abd45129769fd548e1b310f1f349f3440729ee800f23c6a5fdf7a8d5b.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

3201717abd45129769fd548e1b310f1f349f3440729ee800f23c6a5fdf7a8d5b.exe

pid process

1976 3201717abd45129769fd548e1b310f1f349f3440729ee800f23c6a5fdf7a8d5b.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

3201717abd45129769fd548e1b310f1f349f3440729ee800f23c6a5fdf7a8d5b.exe

description	pid	process	target process
PID 1976 wrote to memory of 1264	1976	3201717abd45129769fd548e1b310f1f349f3440729ee800f23c6a5fdf7a8d5b.exe	splwow64.exe
PID 1976 wrote to memory of 1264	1976	3201717abd45129769fd548e1b310f1f349f3440729ee800f23c6a5fdf7a8d5b.exe	splwow64.exe
PID 1976 wrote to memory of 1264	1976	3201717abd45129769fd548e1b310f1f349f3440729ee800f23c6a5fdf7a8d5b.exe	splwow64.exe
PID 1976 wrote to memory of 1264	1976	3201717abd45129769fd548e1b310f1f349f3440729ee800f23c6a5fdf7a8d5b.exe	splwow64.exe

C:\Users\Admin\AppData\Local\Temp\3201717abd45129769fd548e1b310f1f349f3440729ee800f23c6a5fdf7a8d5b.exe
"C:\Users\Admin\AppData\Local\Temp\3201717abd45129769fd548e1b310f1f349f3440729ee800f23c6a5fdf7a8d5b.exe"
1⤵
- Checks computer location settings
- Maps connected drives based on registry
- Suspicious behavior: MapViewOfSection
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1976

C:\Windows\splwow64.exe
C:\Windows\splwow64.exe 12288
2⤵
PID:1264

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

3

T1012

System Information Discovery

2

T1082

Peripheral Device Discovery

1

T1120

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

memory/1196-63-0x0000000002A40000-0x0000000002A55000-memory.dmp

Filesize
84KB

Download
memory/1264-58-0x0000000000000000-mapping.dmp

Download
memory/1264-59-0x000007FEFB751000-0x000007FEFB753000-memory.dmp

Filesize
8KB

Download
memory/1976-54-0x0000000075541000-0x0000000075543000-memory.dmp

Filesize
8KB

Download
memory/1976-55-0x00000000722E1000-0x00000000722E3000-memory.dmp

Filesize
8KB

Download
memory/1976-56-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/1976-57-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/1976-60-0x0000000000400000-0x0000000000468000-memory.dmp

Filesize
416KB

Download
memory/1976-61-0x0000000002330000-0x000000000238B000-memory.dmp

Filesize
364KB

Download
memory/1976-62-0x0000000000400000-0x0000000000468000-memory.dmp

Filesize
416KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads