smokeloader | aebe8aa2e72ab13661749f5e0055ffadb251c2f36c4c4e1a9bcabff57c1f7f29

Analysis

max time kernel
150s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20221111-en
resource tags

arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
submitted
06-02-2023 15:24

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General

Target

file.exe
Size

322KB
MD5

838491ef0574f9c44478846d4dfdb95e
SHA1

ea8c6f2439ffdd3206f2731a044fd1187754d5d1
SHA256

aebe8aa2e72ab13661749f5e0055ffadb251c2f36c4c4e1a9bcabff57c1f7f29
SHA512

7c8f13787bfebfa6d448c6be3638282f10e00598770f08b6e0835cdc743a1b0a1807085630d8f9d01d6711214acbf683582f28cd02e09bc5db0dabdcb5c5b28a
SSDEEP

3072:QFzbFIdLskv4CvRKsmYV3utrF7P2F15OScG7LlZzjDC1//+sxA7rrnMV+v3:2GdLf4C8slKrFTw18jGn/DClRkh

Score

10^/10

smokeloader backdoor trojan

Malware Config

Signatures

Detects Smokeloader packer 4 IoCs

Processes:

resource	yara_rule
behavioral2/memory/1664-133-0x0000000000400000-0x0000000000409000-memory.dmp	family_smokeloader
behavioral2/memory/3632-135-0x0000000002060000-0x0000000002069000-memory.dmp	family_smokeloader
behavioral2/memory/1664-136-0x0000000000400000-0x0000000000409000-memory.dmp	family_smokeloader
behavioral2/memory/1664-137-0x0000000000400000-0x0000000000409000-memory.dmp	family_smokeloader

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

Processes:

file.exe

description pid process target process

PID 3632 set thread context of 1664 3632 file.exe file.exe

description	pid	process	target process
PID 3632 set thread context of 1664	3632	file.exe	file.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:

file.exe

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

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

file.exe

pid	process
1664	file.exe
1664	file.exe
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Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

pid process

372
Suspicious behavior: MapViewOfSection 1 IoCs

Processes:

file.exe

pid process

1664 file.exe

pid	process
372

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

file.exe

description	pid	process	target process
PID 3632 wrote to memory of 1664	3632	file.exe	file.exe
PID 3632 wrote to memory of 1664	3632	file.exe	file.exe
PID 3632 wrote to memory of 1664	3632	file.exe	file.exe
PID 3632 wrote to memory of 1664	3632	file.exe	file.exe
PID 3632 wrote to memory of 1664	3632	file.exe	file.exe
PID 3632 wrote to memory of 1664	3632	file.exe	file.exe

C:\Users\Admin\AppData\Local\Temp\file.exe
"C:\Users\Admin\AppData\Local\Temp\file.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3632

C:\Users\Admin\AppData\Local\Temp\file.exe
"C:\Users\Admin\AppData\Local\Temp\file.exe"
2⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
PID:1664

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/1664-132-0x0000000000000000-mapping.dmp

Download
memory/1664-133-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/1664-136-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/1664-137-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/3632-134-0x000000000050F000-0x0000000000525000-memory.dmp

Filesize
88KB

Download
memory/3632-135-0x0000000002060000-0x0000000002069000-memory.dmp

Filesize
36KB

Download