smokeloader | 086f98376b2a5d38f1215467ef57d7803523984b3ff745fc5438eea791da7985

Analysis

max time kernel
150s
max time network
45s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
07-02-2023 00:17

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General

Target

file.exe
Size

298KB
MD5

afc1de57455861ff97bf20c27cfaba6c
SHA1

00bd80516cbf5a309b48730abc76eedd9c5c688f
SHA256

086f98376b2a5d38f1215467ef57d7803523984b3ff745fc5438eea791da7985
SHA512

d2651e79444401b4a04f7169d6d782eea042273eacca0e95dd332b2562d2789bda2dabda11c37d18815013ea0d024271f1ffdbe74b74006d5af863b82f1673ce
SSDEEP

3072:Aqb6bEcjNLqKRmaVrAndcjlYJZnQ6jJC9GS6AEn11uQjiMTE5wY3ta5hN:1vcjNLqJaVYeCjJoEkE11uQj9EaL

Score

10^/10

smokeloader backdoor trojan

Malware Config

Signatures

Detects Smokeloader packer 5 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2028-55-0x0000000000402DD8-mapping.dmp	family_smokeloader
behavioral1/memory/2028-54-0x0000000000400000-0x0000000000409000-memory.dmp	family_smokeloader
behavioral1/memory/1784-58-0x0000000000230000-0x0000000000239000-memory.dmp	family_smokeloader
behavioral1/memory/2028-59-0x0000000000400000-0x0000000000409000-memory.dmp	family_smokeloader
behavioral1/memory/2028-60-0x0000000000400000-0x0000000000409000-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 1784 set thread context of 2028 1784 file.exe file.exe

description	pid	process	target process
PID 1784 set thread context of 2028	1784	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 enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	file.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	file.exe
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	file.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

file.exe

pid	process
2028	file.exe
2028	file.exe
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Suspicious behavior: MapViewOfSection 1 IoCs

Processes:

file.exe

pid process

2028 file.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

file.exe

description	pid	process	target process
PID 1784 wrote to memory of 2028	1784	file.exe	file.exe
PID 1784 wrote to memory of 2028	1784	file.exe	file.exe
PID 1784 wrote to memory of 2028	1784	file.exe	file.exe
PID 1784 wrote to memory of 2028	1784	file.exe	file.exe
PID 1784 wrote to memory of 2028	1784	file.exe	file.exe
PID 1784 wrote to memory of 2028	1784	file.exe	file.exe
PID 1784 wrote to memory of 2028	1784	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:1784

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:2028

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/1784-58-0x0000000000230000-0x0000000000239000-memory.dmp

Filesize
36KB

Download
memory/1784-56-0x000000000065C000-0x0000000000671000-memory.dmp

Filesize
84KB

Download
memory/2028-55-0x0000000000402DD8-mapping.dmp

Download
memory/2028-54-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2028-57-0x00000000762F1000-0x00000000762F3000-memory.dmp

Filesize
8KB

Download
memory/2028-59-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/2028-60-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads