smokeloader | 18c5ce239fbd3566ced4a5f0b7fa06ef87ad8ca281f809b47236d7937461a852

Analysis

max time kernel
150s
max time network
150s
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 17:52

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General

Target

18c5ce239fbd3566ced4a5f0b7fa06ef87ad8ca281f809b47236d7937461a852.exe
Size

321KB
MD5

7f942d8a8551bbc67d93c515e3f5917d
SHA1

ff8254aab37eb7d9b09f1f1012ebb5a809db9308
SHA256

18c5ce239fbd3566ced4a5f0b7fa06ef87ad8ca281f809b47236d7937461a852
SHA512

d566974e454f1973ec3f12dc559a89c8cc10c2c47aa90f745989683e1da6da5d51cea4827def61da4fda9d59e6882f6e86b179c5053277753c1fe07448c24798
SSDEEP

3072:VB7PkLvHa9R60YJsddrfWemf1BjGbbMnsZ/ZvGRDVkszuQjiMTE5MPCfag7c:XgLPau0YJgZxMnsnuRqszuQj9LGaMc

Score

10^/10

smokeloader backdoor trojan

Malware Config

Signatures

Detects Smokeloader packer 4 IoCs

Processes:

resource	yara_rule
behavioral1/memory/4880-133-0x0000000000400000-0x0000000000409000-memory.dmp	family_smokeloader
behavioral1/memory/4220-135-0x0000000000600000-0x0000000000609000-memory.dmp	family_smokeloader
behavioral1/memory/4880-136-0x0000000000400000-0x0000000000409000-memory.dmp	family_smokeloader
behavioral1/memory/4880-137-0x0000000000400000-0x0000000000409000-memory.dmp	family_smokeloader

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

Suspicious use of SetThreadContext 1 IoCs

Processes:

18c5ce239fbd3566ced4a5f0b7fa06ef87ad8ca281f809b47236d7937461a852.exe

description	pid	process	target process
PID 4220 set thread context of 4880	4220	18c5ce239fbd3566ced4a5f0b7fa06ef87ad8ca281f809b47236d7937461a852.exe	18c5ce239fbd3566ced4a5f0b7fa06ef87ad8ca281f809b47236d7937461a852.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:

18c5ce239fbd3566ced4a5f0b7fa06ef87ad8ca281f809b47236d7937461a852.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	18c5ce239fbd3566ced4a5f0b7fa06ef87ad8ca281f809b47236d7937461a852.exe
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	18c5ce239fbd3566ced4a5f0b7fa06ef87ad8ca281f809b47236d7937461a852.exe
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	18c5ce239fbd3566ced4a5f0b7fa06ef87ad8ca281f809b47236d7937461a852.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

18c5ce239fbd3566ced4a5f0b7fa06ef87ad8ca281f809b47236d7937461a852.exe

pid	process
4880	18c5ce239fbd3566ced4a5f0b7fa06ef87ad8ca281f809b47236d7937461a852.exe
4880	18c5ce239fbd3566ced4a5f0b7fa06ef87ad8ca281f809b47236d7937461a852.exe
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Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

pid process

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Suspicious behavior: MapViewOfSection 1 IoCs

Processes:

18c5ce239fbd3566ced4a5f0b7fa06ef87ad8ca281f809b47236d7937461a852.exe

pid process

4880 18c5ce239fbd3566ced4a5f0b7fa06ef87ad8ca281f809b47236d7937461a852.exe

pid	process
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Suspicious use of WriteProcessMemory 6 IoCs

Processes:

18c5ce239fbd3566ced4a5f0b7fa06ef87ad8ca281f809b47236d7937461a852.exe

description	pid	process	target process
PID 4220 wrote to memory of 4880	4220	18c5ce239fbd3566ced4a5f0b7fa06ef87ad8ca281f809b47236d7937461a852.exe	18c5ce239fbd3566ced4a5f0b7fa06ef87ad8ca281f809b47236d7937461a852.exe
PID 4220 wrote to memory of 4880	4220	18c5ce239fbd3566ced4a5f0b7fa06ef87ad8ca281f809b47236d7937461a852.exe	18c5ce239fbd3566ced4a5f0b7fa06ef87ad8ca281f809b47236d7937461a852.exe
PID 4220 wrote to memory of 4880	4220	18c5ce239fbd3566ced4a5f0b7fa06ef87ad8ca281f809b47236d7937461a852.exe	18c5ce239fbd3566ced4a5f0b7fa06ef87ad8ca281f809b47236d7937461a852.exe
PID 4220 wrote to memory of 4880	4220	18c5ce239fbd3566ced4a5f0b7fa06ef87ad8ca281f809b47236d7937461a852.exe	18c5ce239fbd3566ced4a5f0b7fa06ef87ad8ca281f809b47236d7937461a852.exe
PID 4220 wrote to memory of 4880	4220	18c5ce239fbd3566ced4a5f0b7fa06ef87ad8ca281f809b47236d7937461a852.exe	18c5ce239fbd3566ced4a5f0b7fa06ef87ad8ca281f809b47236d7937461a852.exe
PID 4220 wrote to memory of 4880	4220	18c5ce239fbd3566ced4a5f0b7fa06ef87ad8ca281f809b47236d7937461a852.exe	18c5ce239fbd3566ced4a5f0b7fa06ef87ad8ca281f809b47236d7937461a852.exe

C:\Users\Admin\AppData\Local\Temp\18c5ce239fbd3566ced4a5f0b7fa06ef87ad8ca281f809b47236d7937461a852.exe
"C:\Users\Admin\AppData\Local\Temp\18c5ce239fbd3566ced4a5f0b7fa06ef87ad8ca281f809b47236d7937461a852.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4220

C:\Users\Admin\AppData\Local\Temp\18c5ce239fbd3566ced4a5f0b7fa06ef87ad8ca281f809b47236d7937461a852.exe
"C:\Users\Admin\AppData\Local\Temp\18c5ce239fbd3566ced4a5f0b7fa06ef87ad8ca281f809b47236d7937461a852.exe"
2⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
PID:4880

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

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Downloads

memory/4220-134-0x00000000006AE000-0x00000000006C3000-memory.dmp

Filesize
84KB

Download
memory/4220-135-0x0000000000600000-0x0000000000609000-memory.dmp

Filesize
36KB

Download
memory/4880-132-0x0000000000000000-mapping.dmp

Download
memory/4880-133-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/4880-136-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/4880-137-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download