smokeloader | 4fbad19a6629f2dbbaa4bebd6066dbc1548b7ee3890226ca3d4b70e97d1dcacd

Analysis

max time kernel
150s
max time network
127s
platform
windows10-2004_x64
resource
win10v2004-20230220-en
resource tags

arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
submitted
28-03-2023 16:16

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General

Target

6c0975817e255a00753d5bf3c48d67f8.exe
Size

296KB
MD5

6c0975817e255a00753d5bf3c48d67f8
SHA1

38c1825ea17a47b0a63a0592c395423bf20a427e
SHA256

4fbad19a6629f2dbbaa4bebd6066dbc1548b7ee3890226ca3d4b70e97d1dcacd
SHA512

2052624292424c1067bf32c935955ea8a0180159c04feb07d6da0b221dfb1a0d32739eaf0433e2f8c596cc03f8769cec5715ed5d5daa39966bfbd812f027407b
SSDEEP

3072:Cldy/5idB5Df4RJvLAIeMcAP4hhhhhhQ0ewt+BjsbMxA1kCtjjs0uZIGbp9XAFle:GSc5DfcvLq6sYwjs0Gbp57tDDT9

Score

10^/10

smokeloader lab backdoor trojan

Malware Config

Extracted

Family

smokeloader

Botnet

lab

Extracted

Family

smokeloader

Version

2020

http://host-file-host6.com/

http://host-host-file8.com/

rc4.i32

Signatures

SmokeLoader
Modular backdoor trojan in use since 2014.
trojan backdoor smokeloader
Suspicious use of SetThreadContext 1 IoCs

Processes:

6c0975817e255a00753d5bf3c48d67f8.exe

description pid process target process

PID 1180 set thread context of 552 1180 6c0975817e255a00753d5bf3c48d67f8.exe 6c0975817e255a00753d5bf3c48d67f8.exe

description	pid	process	target process
PID 1180 set thread context of 552	1180	6c0975817e255a00753d5bf3c48d67f8.exe	6c0975817e255a00753d5bf3c48d67f8.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:

6c0975817e255a00753d5bf3c48d67f8.exe

description	ioc	process
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	6c0975817e255a00753d5bf3c48d67f8.exe
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	6c0975817e255a00753d5bf3c48d67f8.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	6c0975817e255a00753d5bf3c48d67f8.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

6c0975817e255a00753d5bf3c48d67f8.exe

pid	process
552	6c0975817e255a00753d5bf3c48d67f8.exe
552	6c0975817e255a00753d5bf3c48d67f8.exe
3144
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3144

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

pid process

3144
Suspicious behavior: MapViewOfSection 1 IoCs

Processes:

6c0975817e255a00753d5bf3c48d67f8.exe

pid process

552 6c0975817e255a00753d5bf3c48d67f8.exe

pid	process
3144

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

6c0975817e255a00753d5bf3c48d67f8.exe

description	pid	process	target process
PID 1180 wrote to memory of 552	1180	6c0975817e255a00753d5bf3c48d67f8.exe	6c0975817e255a00753d5bf3c48d67f8.exe
PID 1180 wrote to memory of 552	1180	6c0975817e255a00753d5bf3c48d67f8.exe	6c0975817e255a00753d5bf3c48d67f8.exe
PID 1180 wrote to memory of 552	1180	6c0975817e255a00753d5bf3c48d67f8.exe	6c0975817e255a00753d5bf3c48d67f8.exe
PID 1180 wrote to memory of 552	1180	6c0975817e255a00753d5bf3c48d67f8.exe	6c0975817e255a00753d5bf3c48d67f8.exe
PID 1180 wrote to memory of 552	1180	6c0975817e255a00753d5bf3c48d67f8.exe	6c0975817e255a00753d5bf3c48d67f8.exe
PID 1180 wrote to memory of 552	1180	6c0975817e255a00753d5bf3c48d67f8.exe	6c0975817e255a00753d5bf3c48d67f8.exe

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012

C:\Users\Admin\AppData\Local\Temp\6c0975817e255a00753d5bf3c48d67f8.exe
"C:\Users\Admin\AppData\Local\Temp\6c0975817e255a00753d5bf3c48d67f8.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1180

C:\Users\Admin\AppData\Local\Temp\6c0975817e255a00753d5bf3c48d67f8.exe
"C:\Users\Admin\AppData\Local\Temp\6c0975817e255a00753d5bf3c48d67f8.exe"
2⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
PID:552

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/552-134-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/552-136-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/552-138-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/1180-135-0x0000000002D10000-0x0000000002D19000-memory.dmp

Filesize
36KB

Download
memory/3144-137-0x0000000000D70000-0x0000000000D86000-memory.dmp

Filesize
88KB

Download