smokeloader | b1174532d2b70144c1f9a18b4bfb2fe33e27cfe75608508ce1ddde0ecad51508

Analysis

max time kernel
150s
max time network
136s
platform
windows10-2004_x64
resource
win10v2004-20220901-en
resource tags

arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
submitted
06-02-2023 16:33

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General

Target

b1174532d2b70144c1f9a18b4bfb2fe33e27cfe75608508ce1ddde0ecad51508.exe
Size

321KB
MD5

283ca6b9729a764872c84df0203e87f2
SHA1

e45f93053ee0d1d58caca373a0701f2ad7e04485
SHA256

b1174532d2b70144c1f9a18b4bfb2fe33e27cfe75608508ce1ddde0ecad51508
SHA512

f5ca0cab39ec5ea66e4640347e425daf2636efafbb2c66819c221711be7fd47302e06eae665343dbb0de02196a99d41108580b37e45340024ec2188d21c3cecc
SSDEEP

6144:G5Lrgy0YVu5/A1s/4o6fd8m2guQj9w4JgPaMc:G5PgYuG2AoSd8Slj6Ta

Score

10^/10

smokeloader backdoor trojan

Malware Config

Signatures

Detects Smokeloader packer 4 IoCs

Processes:

resource	yara_rule
behavioral1/memory/4568-133-0x0000000000400000-0x0000000000409000-memory.dmp	family_smokeloader
behavioral1/memory/5040-135-0x0000000000600000-0x0000000000609000-memory.dmp	family_smokeloader
behavioral1/memory/4568-136-0x0000000000400000-0x0000000000409000-memory.dmp	family_smokeloader
behavioral1/memory/4568-137-0x0000000000400000-0x0000000000409000-memory.dmp	family_smokeloader

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

Suspicious use of SetThreadContext 1 IoCs

Processes:

b1174532d2b70144c1f9a18b4bfb2fe33e27cfe75608508ce1ddde0ecad51508.exe

description	pid	process	target process
PID 5040 set thread context of 4568	5040	b1174532d2b70144c1f9a18b4bfb2fe33e27cfe75608508ce1ddde0ecad51508.exe	b1174532d2b70144c1f9a18b4bfb2fe33e27cfe75608508ce1ddde0ecad51508.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:

b1174532d2b70144c1f9a18b4bfb2fe33e27cfe75608508ce1ddde0ecad51508.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	b1174532d2b70144c1f9a18b4bfb2fe33e27cfe75608508ce1ddde0ecad51508.exe
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	b1174532d2b70144c1f9a18b4bfb2fe33e27cfe75608508ce1ddde0ecad51508.exe
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	b1174532d2b70144c1f9a18b4bfb2fe33e27cfe75608508ce1ddde0ecad51508.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

b1174532d2b70144c1f9a18b4bfb2fe33e27cfe75608508ce1ddde0ecad51508.exe

pid	process
4568	b1174532d2b70144c1f9a18b4bfb2fe33e27cfe75608508ce1ddde0ecad51508.exe
4568	b1174532d2b70144c1f9a18b4bfb2fe33e27cfe75608508ce1ddde0ecad51508.exe
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Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

pid process

2640
Suspicious behavior: MapViewOfSection 1 IoCs

Processes:

b1174532d2b70144c1f9a18b4bfb2fe33e27cfe75608508ce1ddde0ecad51508.exe

pid process

4568 b1174532d2b70144c1f9a18b4bfb2fe33e27cfe75608508ce1ddde0ecad51508.exe

pid	process
2640

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

b1174532d2b70144c1f9a18b4bfb2fe33e27cfe75608508ce1ddde0ecad51508.exe

description	pid	process	target process
PID 5040 wrote to memory of 4568	5040	b1174532d2b70144c1f9a18b4bfb2fe33e27cfe75608508ce1ddde0ecad51508.exe	b1174532d2b70144c1f9a18b4bfb2fe33e27cfe75608508ce1ddde0ecad51508.exe
PID 5040 wrote to memory of 4568	5040	b1174532d2b70144c1f9a18b4bfb2fe33e27cfe75608508ce1ddde0ecad51508.exe	b1174532d2b70144c1f9a18b4bfb2fe33e27cfe75608508ce1ddde0ecad51508.exe
PID 5040 wrote to memory of 4568	5040	b1174532d2b70144c1f9a18b4bfb2fe33e27cfe75608508ce1ddde0ecad51508.exe	b1174532d2b70144c1f9a18b4bfb2fe33e27cfe75608508ce1ddde0ecad51508.exe
PID 5040 wrote to memory of 4568	5040	b1174532d2b70144c1f9a18b4bfb2fe33e27cfe75608508ce1ddde0ecad51508.exe	b1174532d2b70144c1f9a18b4bfb2fe33e27cfe75608508ce1ddde0ecad51508.exe
PID 5040 wrote to memory of 4568	5040	b1174532d2b70144c1f9a18b4bfb2fe33e27cfe75608508ce1ddde0ecad51508.exe	b1174532d2b70144c1f9a18b4bfb2fe33e27cfe75608508ce1ddde0ecad51508.exe
PID 5040 wrote to memory of 4568	5040	b1174532d2b70144c1f9a18b4bfb2fe33e27cfe75608508ce1ddde0ecad51508.exe	b1174532d2b70144c1f9a18b4bfb2fe33e27cfe75608508ce1ddde0ecad51508.exe

C:\Users\Admin\AppData\Local\Temp\b1174532d2b70144c1f9a18b4bfb2fe33e27cfe75608508ce1ddde0ecad51508.exe
"C:\Users\Admin\AppData\Local\Temp\b1174532d2b70144c1f9a18b4bfb2fe33e27cfe75608508ce1ddde0ecad51508.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:5040

C:\Users\Admin\AppData\Local\Temp\b1174532d2b70144c1f9a18b4bfb2fe33e27cfe75608508ce1ddde0ecad51508.exe
"C:\Users\Admin\AppData\Local\Temp\b1174532d2b70144c1f9a18b4bfb2fe33e27cfe75608508ce1ddde0ecad51508.exe"
2⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
PID:4568

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/4568-132-0x0000000000000000-mapping.dmp

Download
memory/4568-133-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/4568-136-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/4568-137-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/5040-135-0x0000000000600000-0x0000000000609000-memory.dmp

Filesize
36KB

Download
memory/5040-134-0x00000000006AE000-0x00000000006C3000-memory.dmp

Filesize
84KB

Download