smokeloader | a025e5d7e568657b8c933e2d47c333f3710ed321fe7adb52325fa8eb0e21b24b

Analysis

max time kernel
150s
max time network
154s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
23-09-2022 06:17

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General

Target

11f04b754859273d8ab885e7df6f63ce.exe
Size

279KB
MD5

11f04b754859273d8ab885e7df6f63ce
SHA1

f6927dbbd63937aa68f0c2b7ce48e8c6762e1130
SHA256

a025e5d7e568657b8c933e2d47c333f3710ed321fe7adb52325fa8eb0e21b24b
SHA512

7c8dd2a0d18f96b8c79a2dad505b58b7d987d8d16a85dd82b48529e019ef33b07fcd8f3ab91d4e90a7e80ead84d1ef85e38d8a0fea3beaf64b04be2677d83f09
SSDEEP

6144:Giy2kVDvLiAa1+mNArzGftBMfikmq0HigavwVfgD:GiyzjG1+mNAraft0cCT

Score

10^/10

smokeloader backdoor trojan

Malware Config

Signatures

Detects Smokeloader packer 4 IoCs

Processes:

resource	yara_rule
behavioral2/memory/2388-133-0x0000000000400000-0x0000000000409000-memory.dmp	family_smokeloader
behavioral2/memory/4320-135-0x00000000005E0000-0x00000000005E9000-memory.dmp	family_smokeloader
behavioral2/memory/2388-136-0x0000000000400000-0x0000000000409000-memory.dmp	family_smokeloader
behavioral2/memory/2388-137-0x0000000000400000-0x0000000000409000-memory.dmp	family_smokeloader

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

Processes:

11f04b754859273d8ab885e7df6f63ce.exe

description pid process target process

PID 4320 set thread context of 2388 4320 11f04b754859273d8ab885e7df6f63ce.exe 11f04b754859273d8ab885e7df6f63ce.exe

description	pid	process	target process
PID 4320 set thread context of 2388	4320	11f04b754859273d8ab885e7df6f63ce.exe	11f04b754859273d8ab885e7df6f63ce.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:

11f04b754859273d8ab885e7df6f63ce.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	11f04b754859273d8ab885e7df6f63ce.exe
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	11f04b754859273d8ab885e7df6f63ce.exe
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	11f04b754859273d8ab885e7df6f63ce.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

11f04b754859273d8ab885e7df6f63ce.exe

pid	process
2388	11f04b754859273d8ab885e7df6f63ce.exe
2388	11f04b754859273d8ab885e7df6f63ce.exe
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Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

pid process

2180
Suspicious behavior: MapViewOfSection 1 IoCs

Processes:

11f04b754859273d8ab885e7df6f63ce.exe

pid process

2388 11f04b754859273d8ab885e7df6f63ce.exe

pid	process
2180

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

11f04b754859273d8ab885e7df6f63ce.exe

description	pid	process	target process
PID 4320 wrote to memory of 2388	4320	11f04b754859273d8ab885e7df6f63ce.exe	11f04b754859273d8ab885e7df6f63ce.exe
PID 4320 wrote to memory of 2388	4320	11f04b754859273d8ab885e7df6f63ce.exe	11f04b754859273d8ab885e7df6f63ce.exe
PID 4320 wrote to memory of 2388	4320	11f04b754859273d8ab885e7df6f63ce.exe	11f04b754859273d8ab885e7df6f63ce.exe
PID 4320 wrote to memory of 2388	4320	11f04b754859273d8ab885e7df6f63ce.exe	11f04b754859273d8ab885e7df6f63ce.exe
PID 4320 wrote to memory of 2388	4320	11f04b754859273d8ab885e7df6f63ce.exe	11f04b754859273d8ab885e7df6f63ce.exe
PID 4320 wrote to memory of 2388	4320	11f04b754859273d8ab885e7df6f63ce.exe	11f04b754859273d8ab885e7df6f63ce.exe

C:\Users\Admin\AppData\Local\Temp\11f04b754859273d8ab885e7df6f63ce.exe
"C:\Users\Admin\AppData\Local\Temp\11f04b754859273d8ab885e7df6f63ce.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4320

C:\Users\Admin\AppData\Local\Temp\11f04b754859273d8ab885e7df6f63ce.exe
"C:\Users\Admin\AppData\Local\Temp\11f04b754859273d8ab885e7df6f63ce.exe"
2⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
PID:2388

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/2388-132-0x0000000000000000-mapping.dmp

Download
memory/2388-133-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2388-136-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2388-137-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/4320-134-0x000000000065E000-0x000000000066E000-memory.dmp

Filesize
64KB

Download
memory/4320-135-0x00000000005E0000-0x00000000005E9000-memory.dmp

Filesize
36KB

Download