smokeloader | 425b9cd4f233bf9c68bf2f965717e36348911ea057d3792ebc862caea077bf27

Analysis

max time kernel
90s
max time network
157s
platform
windows10-2004_x64
resource
win10v2004-20220414-en
submitted
08-07-2022 02:47

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General

Target

425b9cd4f233bf9c68bf2f965717e36348911ea057d3792ebc862caea077bf27.exe
Size

210KB
MD5

4a664f5bfd63570f209fa6cf42467eaf
SHA1

bd61a99af933bde5d4c341520e30b62034139c7c
SHA256

425b9cd4f233bf9c68bf2f965717e36348911ea057d3792ebc862caea077bf27
SHA512

62c17b99f91ede151fbd328ff7203efdc4cee1f11207f029b85065bacc426c9c585a4f7fd3fb970d1ff679367852cedff8fe2f7641873bf9ed43d9144a95b232

Score

10^/10

smokeloader backdoor trojan

Malware Config

Extracted

Family

smokeloader

Version

2018

http://proxy-exe.bit/2/

http://kiyanka.club/2/

http://d3s1.me/2/

rc4.i32

Signatures

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

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:

425b9cd4f233bf9c68bf2f965717e36348911ea057d3792ebc862caea077bf27.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	425b9cd4f233bf9c68bf2f965717e36348911ea057d3792ebc862caea077bf27.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	425b9cd4f233bf9c68bf2f965717e36348911ea057d3792ebc862caea077bf27.exe

Suspicious behavior: MapViewOfSection 2 IoCs

Processes:

425b9cd4f233bf9c68bf2f965717e36348911ea057d3792ebc862caea077bf27.exe

pid	process
4732	425b9cd4f233bf9c68bf2f965717e36348911ea057d3792ebc862caea077bf27.exe
4732	425b9cd4f233bf9c68bf2f965717e36348911ea057d3792ebc862caea077bf27.exe

Suspicious use of WriteProcessMemory 2 IoCs

Processes:

425b9cd4f233bf9c68bf2f965717e36348911ea057d3792ebc862caea077bf27.exe

description	pid	process	target process
PID 4732 wrote to memory of 4140	4732	425b9cd4f233bf9c68bf2f965717e36348911ea057d3792ebc862caea077bf27.exe	splwow64.exe
PID 4732 wrote to memory of 4140	4732	425b9cd4f233bf9c68bf2f965717e36348911ea057d3792ebc862caea077bf27.exe	splwow64.exe

C:\Users\Admin\AppData\Local\Temp\425b9cd4f233bf9c68bf2f965717e36348911ea057d3792ebc862caea077bf27.exe
"C:\Users\Admin\AppData\Local\Temp\425b9cd4f233bf9c68bf2f965717e36348911ea057d3792ebc862caea077bf27.exe"
1⤵
- Maps connected drives based on registry
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:4732

C:\Windows\splwow64.exe
C:\Windows\splwow64.exe 12288
2⤵
PID:4140

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

memory/796-133-0x0000000000C00000-0x0000000000C15000-memory.dmp

Filesize
84KB

Download
memory/4140-130-0x0000000000000000-mapping.dmp

Download
memory/4732-131-0x0000000000500000-0x0000000000509000-memory.dmp

Filesize
36KB

Download
memory/4732-132-0x0000000000400000-0x000000000043B000-memory.dmp

Filesize
236KB

Download