smokeloader | 3c4d6c6c2825913d2cd77ec76235d0a76791bd77e2be0c54fe311f3231262c1d

Analysis

max time kernel
150s
max time network
145s
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 22:34

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General

Target

3c4d6c6c2825913d2cd77ec76235d0a76791bd77e2be0c54fe311f3231262c1d.exe
Size

300KB
MD5

7b15324f9c6bf7802c98721017f757a8
SHA1

d1ae685805eaee5ab5c4fc6210832c58cfcfe000
SHA256

3c4d6c6c2825913d2cd77ec76235d0a76791bd77e2be0c54fe311f3231262c1d
SHA512

bc5f32cb44aa4b8d1b05314a5aca937dcbb0f5e6ceebdf18d1cfa23a9a66c58a997eb496714d03d49ee87e99755ccdcf8c2dfba6d2dc23a09c2546e4af5cef26
SSDEEP

3072:CQjVb6bJvLxQRGN7atT0SglPDpDKugjjPdWE4+Sy6uQjiMTE5kWO85afZi:CEivLxXNmt1uDpngjbU9+WuQj9S5ah

Score

10^/10

smokeloader backdoor trojan

Malware Config

Signatures

Detects Smokeloader packer 4 IoCs

Processes:

resource	yara_rule
behavioral1/memory/4540-133-0x0000000000400000-0x0000000000409000-memory.dmp	family_smokeloader
behavioral1/memory/4856-135-0x0000000002200000-0x0000000002209000-memory.dmp	family_smokeloader
behavioral1/memory/4540-136-0x0000000000400000-0x0000000000409000-memory.dmp	family_smokeloader
behavioral1/memory/4540-137-0x0000000000400000-0x0000000000409000-memory.dmp	family_smokeloader

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

Suspicious use of SetThreadContext 1 IoCs

Processes:

3c4d6c6c2825913d2cd77ec76235d0a76791bd77e2be0c54fe311f3231262c1d.exe

description	pid	process	target process
PID 4856 set thread context of 4540	4856	3c4d6c6c2825913d2cd77ec76235d0a76791bd77e2be0c54fe311f3231262c1d.exe	3c4d6c6c2825913d2cd77ec76235d0a76791bd77e2be0c54fe311f3231262c1d.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:

3c4d6c6c2825913d2cd77ec76235d0a76791bd77e2be0c54fe311f3231262c1d.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	3c4d6c6c2825913d2cd77ec76235d0a76791bd77e2be0c54fe311f3231262c1d.exe
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	3c4d6c6c2825913d2cd77ec76235d0a76791bd77e2be0c54fe311f3231262c1d.exe
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	3c4d6c6c2825913d2cd77ec76235d0a76791bd77e2be0c54fe311f3231262c1d.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

3c4d6c6c2825913d2cd77ec76235d0a76791bd77e2be0c54fe311f3231262c1d.exe

pid	process
4540	3c4d6c6c2825913d2cd77ec76235d0a76791bd77e2be0c54fe311f3231262c1d.exe
4540	3c4d6c6c2825913d2cd77ec76235d0a76791bd77e2be0c54fe311f3231262c1d.exe
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Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

pid process

764
Suspicious behavior: MapViewOfSection 1 IoCs

Processes:

3c4d6c6c2825913d2cd77ec76235d0a76791bd77e2be0c54fe311f3231262c1d.exe

pid process

4540 3c4d6c6c2825913d2cd77ec76235d0a76791bd77e2be0c54fe311f3231262c1d.exe

pid	process
764

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

3c4d6c6c2825913d2cd77ec76235d0a76791bd77e2be0c54fe311f3231262c1d.exe

description	pid	process	target process
PID 4856 wrote to memory of 4540	4856	3c4d6c6c2825913d2cd77ec76235d0a76791bd77e2be0c54fe311f3231262c1d.exe	3c4d6c6c2825913d2cd77ec76235d0a76791bd77e2be0c54fe311f3231262c1d.exe
PID 4856 wrote to memory of 4540	4856	3c4d6c6c2825913d2cd77ec76235d0a76791bd77e2be0c54fe311f3231262c1d.exe	3c4d6c6c2825913d2cd77ec76235d0a76791bd77e2be0c54fe311f3231262c1d.exe
PID 4856 wrote to memory of 4540	4856	3c4d6c6c2825913d2cd77ec76235d0a76791bd77e2be0c54fe311f3231262c1d.exe	3c4d6c6c2825913d2cd77ec76235d0a76791bd77e2be0c54fe311f3231262c1d.exe
PID 4856 wrote to memory of 4540	4856	3c4d6c6c2825913d2cd77ec76235d0a76791bd77e2be0c54fe311f3231262c1d.exe	3c4d6c6c2825913d2cd77ec76235d0a76791bd77e2be0c54fe311f3231262c1d.exe
PID 4856 wrote to memory of 4540	4856	3c4d6c6c2825913d2cd77ec76235d0a76791bd77e2be0c54fe311f3231262c1d.exe	3c4d6c6c2825913d2cd77ec76235d0a76791bd77e2be0c54fe311f3231262c1d.exe
PID 4856 wrote to memory of 4540	4856	3c4d6c6c2825913d2cd77ec76235d0a76791bd77e2be0c54fe311f3231262c1d.exe	3c4d6c6c2825913d2cd77ec76235d0a76791bd77e2be0c54fe311f3231262c1d.exe

C:\Users\Admin\AppData\Local\Temp\3c4d6c6c2825913d2cd77ec76235d0a76791bd77e2be0c54fe311f3231262c1d.exe
"C:\Users\Admin\AppData\Local\Temp\3c4d6c6c2825913d2cd77ec76235d0a76791bd77e2be0c54fe311f3231262c1d.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4856

C:\Users\Admin\AppData\Local\Temp\3c4d6c6c2825913d2cd77ec76235d0a76791bd77e2be0c54fe311f3231262c1d.exe
"C:\Users\Admin\AppData\Local\Temp\3c4d6c6c2825913d2cd77ec76235d0a76791bd77e2be0c54fe311f3231262c1d.exe"
2⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
PID:4540

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/4540-132-0x0000000000000000-mapping.dmp

Download
memory/4540-133-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/4540-136-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/4540-137-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/4856-134-0x000000000077F000-0x0000000000795000-memory.dmp

Filesize
88KB

Download
memory/4856-135-0x0000000002200000-0x0000000002209000-memory.dmp

Filesize
36KB

Download