smokeloader | 13af9de5b7f7fca27f2a3f71f6139d0dd5a4fb64718252df02c3504000f713cb

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 01:19

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General

Target

file.exe
Size

299KB
MD5

6d009a731642082c57d26e3525e57456
SHA1

616815562a16e5fe87a514eaebf3d560f4a5f527
SHA256

13af9de5b7f7fca27f2a3f71f6139d0dd5a4fb64718252df02c3504000f713cb
SHA512

24f9677da85f894f6e3e0102cdb5aeb6e7cb3d8bc8efe49361fe8c00d2be9e3f81ee7f4485011975565dfa42b5a78b36ede1c8c4913516bcfb827e276af8a7f3
SSDEEP

3072:Kab6bldLYwRm5GO6bBiBQdk3SHvRuQjiMTE5y8a5H:fWdLY3ybBiBkpPRuQj9b8a

Score

10^/10

smokeloader backdoor trojan

Malware Config

Signatures

Detects Smokeloader packer 5 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1624-54-0x0000000000400000-0x0000000000409000-memory.dmp	family_smokeloader
behavioral1/memory/1624-55-0x0000000000402DD8-mapping.dmp	family_smokeloader
behavioral1/memory/1388-58-0x0000000000220000-0x0000000000229000-memory.dmp	family_smokeloader
behavioral1/memory/1624-59-0x0000000000400000-0x0000000000409000-memory.dmp	family_smokeloader
behavioral1/memory/1624-60-0x0000000000400000-0x0000000000409000-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 1388 set thread context of 1624 1388 file.exe file.exe

description	pid	process	target process
PID 1388 set thread context of 1624	1388	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
1624	file.exe
1624	file.exe
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Suspicious behavior: MapViewOfSection 1 IoCs

Processes:

file.exe

pid process

1624 file.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

file.exe

description	pid	process	target process
PID 1388 wrote to memory of 1624	1388	file.exe	file.exe
PID 1388 wrote to memory of 1624	1388	file.exe	file.exe
PID 1388 wrote to memory of 1624	1388	file.exe	file.exe
PID 1388 wrote to memory of 1624	1388	file.exe	file.exe
PID 1388 wrote to memory of 1624	1388	file.exe	file.exe
PID 1388 wrote to memory of 1624	1388	file.exe	file.exe
PID 1388 wrote to memory of 1624	1388	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:1388

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:1624

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/1388-56-0x000000000067C000-0x0000000000691000-memory.dmp

Filesize
84KB

Download
memory/1388-58-0x0000000000220000-0x0000000000229000-memory.dmp

Filesize
36KB

Download
memory/1624-54-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/1624-55-0x0000000000402DD8-mapping.dmp

Download
memory/1624-57-0x00000000753C1000-0x00000000753C3000-memory.dmp

Filesize
8KB

Download
memory/1624-59-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/1624-60-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads