smokeloader | 2ff4a66db7bd12aa1dce3d0a249b3ba7cd32bbd5c4bc09dfe8db290b6ccfd63b

Analysis

max time kernel
150s
max time network
105s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
06-10-2022 00:50

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General

Target

2ff4a66db7bd12aa1dce3d0a249b3ba7cd32bbd5c4bc09dfe8db290b6ccfd63b.exe
Size

147KB
MD5

3543ec2fc678d8a2794afacde20716af
SHA1

ea25df49137b7cccc5f50242565f4481cb65c062
SHA256

2ff4a66db7bd12aa1dce3d0a249b3ba7cd32bbd5c4bc09dfe8db290b6ccfd63b
SHA512

f5d64ef579377dc207d7e98b70a25a08e71ccc7035896923beb44a011d242b31d2e03412c167a1cc4a7f1a2032e4684e3c056e64b9ed487aa0dc810fd1808ec9
SSDEEP

1536:RdsRBiRTOkWw0hRChf5QBf+WwG2rD89d8+jhIZV1iwXHB1kCVXAZMOVaD7mFFo34:RaRBeIihfguydFhIZVgWRZEM8afmPjO

Score

10^/10

smokeloader backdoor trojan

Malware Config

Signatures

Detects Smokeloader packer 4 IoCs

Processes:

resource	yara_rule
behavioral1/memory/3504-133-0x0000000000400000-0x0000000000409000-memory.dmp	family_smokeloader
behavioral1/memory/4928-135-0x0000000000720000-0x0000000000729000-memory.dmp	family_smokeloader
behavioral1/memory/3504-136-0x0000000000400000-0x0000000000409000-memory.dmp	family_smokeloader
behavioral1/memory/3504-137-0x0000000000400000-0x0000000000409000-memory.dmp	family_smokeloader

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

Suspicious use of SetThreadContext 1 IoCs

Processes:

2ff4a66db7bd12aa1dce3d0a249b3ba7cd32bbd5c4bc09dfe8db290b6ccfd63b.exe

description	pid	process	target process
PID 4928 set thread context of 3504	4928	2ff4a66db7bd12aa1dce3d0a249b3ba7cd32bbd5c4bc09dfe8db290b6ccfd63b.exe	2ff4a66db7bd12aa1dce3d0a249b3ba7cd32bbd5c4bc09dfe8db290b6ccfd63b.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:

2ff4a66db7bd12aa1dce3d0a249b3ba7cd32bbd5c4bc09dfe8db290b6ccfd63b.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	2ff4a66db7bd12aa1dce3d0a249b3ba7cd32bbd5c4bc09dfe8db290b6ccfd63b.exe
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	2ff4a66db7bd12aa1dce3d0a249b3ba7cd32bbd5c4bc09dfe8db290b6ccfd63b.exe
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	2ff4a66db7bd12aa1dce3d0a249b3ba7cd32bbd5c4bc09dfe8db290b6ccfd63b.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

2ff4a66db7bd12aa1dce3d0a249b3ba7cd32bbd5c4bc09dfe8db290b6ccfd63b.exe

pid	process
3504	2ff4a66db7bd12aa1dce3d0a249b3ba7cd32bbd5c4bc09dfe8db290b6ccfd63b.exe
3504	2ff4a66db7bd12aa1dce3d0a249b3ba7cd32bbd5c4bc09dfe8db290b6ccfd63b.exe
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Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

pid process

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Suspicious behavior: MapViewOfSection 1 IoCs

Processes:

2ff4a66db7bd12aa1dce3d0a249b3ba7cd32bbd5c4bc09dfe8db290b6ccfd63b.exe

pid process

3504 2ff4a66db7bd12aa1dce3d0a249b3ba7cd32bbd5c4bc09dfe8db290b6ccfd63b.exe

pid	process
3060

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

2ff4a66db7bd12aa1dce3d0a249b3ba7cd32bbd5c4bc09dfe8db290b6ccfd63b.exe

description	pid	process	target process
PID 4928 wrote to memory of 3504	4928	2ff4a66db7bd12aa1dce3d0a249b3ba7cd32bbd5c4bc09dfe8db290b6ccfd63b.exe	2ff4a66db7bd12aa1dce3d0a249b3ba7cd32bbd5c4bc09dfe8db290b6ccfd63b.exe
PID 4928 wrote to memory of 3504	4928	2ff4a66db7bd12aa1dce3d0a249b3ba7cd32bbd5c4bc09dfe8db290b6ccfd63b.exe	2ff4a66db7bd12aa1dce3d0a249b3ba7cd32bbd5c4bc09dfe8db290b6ccfd63b.exe
PID 4928 wrote to memory of 3504	4928	2ff4a66db7bd12aa1dce3d0a249b3ba7cd32bbd5c4bc09dfe8db290b6ccfd63b.exe	2ff4a66db7bd12aa1dce3d0a249b3ba7cd32bbd5c4bc09dfe8db290b6ccfd63b.exe
PID 4928 wrote to memory of 3504	4928	2ff4a66db7bd12aa1dce3d0a249b3ba7cd32bbd5c4bc09dfe8db290b6ccfd63b.exe	2ff4a66db7bd12aa1dce3d0a249b3ba7cd32bbd5c4bc09dfe8db290b6ccfd63b.exe
PID 4928 wrote to memory of 3504	4928	2ff4a66db7bd12aa1dce3d0a249b3ba7cd32bbd5c4bc09dfe8db290b6ccfd63b.exe	2ff4a66db7bd12aa1dce3d0a249b3ba7cd32bbd5c4bc09dfe8db290b6ccfd63b.exe
PID 4928 wrote to memory of 3504	4928	2ff4a66db7bd12aa1dce3d0a249b3ba7cd32bbd5c4bc09dfe8db290b6ccfd63b.exe	2ff4a66db7bd12aa1dce3d0a249b3ba7cd32bbd5c4bc09dfe8db290b6ccfd63b.exe

C:\Users\Admin\AppData\Local\Temp\2ff4a66db7bd12aa1dce3d0a249b3ba7cd32bbd5c4bc09dfe8db290b6ccfd63b.exe
"C:\Users\Admin\AppData\Local\Temp\2ff4a66db7bd12aa1dce3d0a249b3ba7cd32bbd5c4bc09dfe8db290b6ccfd63b.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4928

C:\Users\Admin\AppData\Local\Temp\2ff4a66db7bd12aa1dce3d0a249b3ba7cd32bbd5c4bc09dfe8db290b6ccfd63b.exe
"C:\Users\Admin\AppData\Local\Temp\2ff4a66db7bd12aa1dce3d0a249b3ba7cd32bbd5c4bc09dfe8db290b6ccfd63b.exe"
2⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
PID:3504

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/3504-132-0x0000000000000000-mapping.dmp

Download
memory/3504-133-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/3504-136-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/3504-137-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/4928-134-0x000000000078E000-0x000000000079F000-memory.dmp

Filesize
68KB

Download
memory/4928-135-0x0000000000720000-0x0000000000729000-memory.dmp

Filesize
36KB

Download