smokeloader | c4bac936dd869e9c00b5d11d10581ddfefff568289c1d7a3829a901c03af8702

Analysis

max time kernel
149s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20220901-en
resource tags

arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
submitted
06-12-2022 06:33

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General

Target

c4bac936dd869e9c00b5d11d10581ddfefff568289c1d7a3829a901c03af8702.exe
Size

320KB
MD5

0dbb2387dd98920442a56e1dc00cfdf6
SHA1

a5f1e07897e3b20083bab3eec4e8dd4722226ab0
SHA256

c4bac936dd869e9c00b5d11d10581ddfefff568289c1d7a3829a901c03af8702
SHA512

211d094bbd4951378560d8376c3d3bf967039dd6f64727c7ea884af381096128f6c3b4d92d7e2fb1b8e69f2dc7088372c78fca61d6ae9d17ae2f1476f35484a9
SSDEEP

6144:rezBoyYPLkPmZBenMWGf6LtN88PqaWzQ+zF:rezCyiYPmZBZWGf6LtK8yE+zF

Score

10^/10

smokeloader backdoor trojan

Malware Config

Signatures

Detects Smokeloader packer 4 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1432-135-0x0000000000400000-0x0000000000409000-memory.dmp	family_smokeloader
behavioral1/memory/5004-134-0x0000000000030000-0x0000000000039000-memory.dmp	family_smokeloader
behavioral1/memory/1432-136-0x0000000000400000-0x0000000000409000-memory.dmp	family_smokeloader
behavioral1/memory/1432-137-0x0000000000400000-0x0000000000409000-memory.dmp	family_smokeloader

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

Suspicious use of SetThreadContext 1 IoCs

Processes:

c4bac936dd869e9c00b5d11d10581ddfefff568289c1d7a3829a901c03af8702.exe

description	pid	process	target process
PID 5004 set thread context of 1432	5004	c4bac936dd869e9c00b5d11d10581ddfefff568289c1d7a3829a901c03af8702.exe	c4bac936dd869e9c00b5d11d10581ddfefff568289c1d7a3829a901c03af8702.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:

c4bac936dd869e9c00b5d11d10581ddfefff568289c1d7a3829a901c03af8702.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	c4bac936dd869e9c00b5d11d10581ddfefff568289c1d7a3829a901c03af8702.exe
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	c4bac936dd869e9c00b5d11d10581ddfefff568289c1d7a3829a901c03af8702.exe
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	c4bac936dd869e9c00b5d11d10581ddfefff568289c1d7a3829a901c03af8702.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

c4bac936dd869e9c00b5d11d10581ddfefff568289c1d7a3829a901c03af8702.exe

pid	process
1432	c4bac936dd869e9c00b5d11d10581ddfefff568289c1d7a3829a901c03af8702.exe
1432	c4bac936dd869e9c00b5d11d10581ddfefff568289c1d7a3829a901c03af8702.exe
2664
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2664

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

pid process

2664
Suspicious behavior: MapViewOfSection 1 IoCs

Processes:

c4bac936dd869e9c00b5d11d10581ddfefff568289c1d7a3829a901c03af8702.exe

pid process

1432 c4bac936dd869e9c00b5d11d10581ddfefff568289c1d7a3829a901c03af8702.exe

pid	process
2664

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

c4bac936dd869e9c00b5d11d10581ddfefff568289c1d7a3829a901c03af8702.exe

description	pid	process	target process
PID 5004 wrote to memory of 1432	5004	c4bac936dd869e9c00b5d11d10581ddfefff568289c1d7a3829a901c03af8702.exe	c4bac936dd869e9c00b5d11d10581ddfefff568289c1d7a3829a901c03af8702.exe
PID 5004 wrote to memory of 1432	5004	c4bac936dd869e9c00b5d11d10581ddfefff568289c1d7a3829a901c03af8702.exe	c4bac936dd869e9c00b5d11d10581ddfefff568289c1d7a3829a901c03af8702.exe
PID 5004 wrote to memory of 1432	5004	c4bac936dd869e9c00b5d11d10581ddfefff568289c1d7a3829a901c03af8702.exe	c4bac936dd869e9c00b5d11d10581ddfefff568289c1d7a3829a901c03af8702.exe
PID 5004 wrote to memory of 1432	5004	c4bac936dd869e9c00b5d11d10581ddfefff568289c1d7a3829a901c03af8702.exe	c4bac936dd869e9c00b5d11d10581ddfefff568289c1d7a3829a901c03af8702.exe
PID 5004 wrote to memory of 1432	5004	c4bac936dd869e9c00b5d11d10581ddfefff568289c1d7a3829a901c03af8702.exe	c4bac936dd869e9c00b5d11d10581ddfefff568289c1d7a3829a901c03af8702.exe
PID 5004 wrote to memory of 1432	5004	c4bac936dd869e9c00b5d11d10581ddfefff568289c1d7a3829a901c03af8702.exe	c4bac936dd869e9c00b5d11d10581ddfefff568289c1d7a3829a901c03af8702.exe

C:\Users\Admin\AppData\Local\Temp\c4bac936dd869e9c00b5d11d10581ddfefff568289c1d7a3829a901c03af8702.exe
"C:\Users\Admin\AppData\Local\Temp\c4bac936dd869e9c00b5d11d10581ddfefff568289c1d7a3829a901c03af8702.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:5004

C:\Users\Admin\AppData\Local\Temp\c4bac936dd869e9c00b5d11d10581ddfefff568289c1d7a3829a901c03af8702.exe
"C:\Users\Admin\AppData\Local\Temp\c4bac936dd869e9c00b5d11d10581ddfefff568289c1d7a3829a901c03af8702.exe"
2⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
PID:1432

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/1432-132-0x0000000000000000-mapping.dmp

Download
memory/1432-135-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/1432-136-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/1432-137-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/5004-133-0x00000000006A2000-0x00000000006B7000-memory.dmp

Filesize
84KB

Download
memory/5004-134-0x0000000000030000-0x0000000000039000-memory.dmp

Filesize
36KB

Download