smokeloader | fc20b03299b8ae91e72e104ee4f18e40125b2b061f1509d1c5b3f9fac3104934

Resubmissions

11-01-2023 13:54

230111-q71fqsdb89 10

27-08-2020 15:49

200827-v6tcrvw9es 10

Analysis

max time kernel
91s
max time network
99s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
11-01-2023 13:54

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General

Target

smoke.exe
Size

329KB
MD5

5fc6f24d43bc7ca45a81d159291955d1
SHA1

72fc3ce96bd9406215cec015d70bbb67318f1e23
SHA256

fc20b03299b8ae91e72e104ee4f18e40125b2b061f1509d1c5b3f9fac3104934
SHA512

b39488cfaec3bbe93fc4b22f92edfc3b2b729e6f75a472d722418b259fc9c74faae60f5126384dc242ba1b42300e60428c7c530982550625cd59e1684f7c9380
SSDEEP

6144:8OZsdXcUIAoUKjiXeZtna8UtDpiyeMTHSN+5qm:8OZQXcDkLuTa8UtteCHP

Score

10^/10

smokeloader backdoor trojan

Malware Config

Extracted

Family

smokeloader

Version

2019

http://protest-01242505.tk/

http://test-service012505.ru.com/

http://test-service012505.pw/

http://test-service012505.com/

http://test-service012505.site/

http://test-service012505.store/

http://test-service01242505.ru/

http://mytest-service012505.ru/

http://test-service012505.su/

http://test-service012505.info/

http://test-service012505.net/

http://test-service012505.tech/

http://test-service012505.online/

http://rutest-service012505.ru/

http://test-service01dom2505.ru/

http://test-service012505.website/

http://test-service012505.xyz/

http://test-service01pro2505.ru/

http://test-service01rus2505.ru/

http://test-service012505.eu/

rc4.i32

Signatures

Detects Smokeloader packer 3 IoCs

resource	yara_rule
behavioral2/memory/800-133-0x00000000005EA000-0x00000000005FB000-memory.dmp	family_smokeloader
behavioral2/memory/1360-135-0x0000000000400000-0x000000000040C000-memory.dmp	family_smokeloader
behavioral2/memory/1360-138-0x0000000000400000-0x000000000040C000-memory.dmp	family_smokeloader

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

Loads dropped DLL 1 IoCs

pid	Process
1360	smoke.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 800 set thread context of 1360	800	smoke.exe	78

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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	smoke.exe
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	smoke.exe
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	smoke.exe

Suspicious behavior: MapViewOfSection 2 IoCs

pid	Process
1360	smoke.exe
1360	smoke.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 800 wrote to memory of 1360	800	smoke.exe	78
PID 800 wrote to memory of 1360	800	smoke.exe	78
PID 800 wrote to memory of 1360	800	smoke.exe	78
PID 800 wrote to memory of 1360	800	smoke.exe	78
PID 800 wrote to memory of 1360	800	smoke.exe	78
PID 800 wrote to memory of 1360	800	smoke.exe	78

C:\Users\Admin\AppData\Local\Temp\smoke.exe
"C:\Users\Admin\AppData\Local\Temp\smoke.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:800
- C:\Users\Admin\AppData\Local\Temp\smoke.exe
  "C:\Users\Admin\AppData\Local\Temp\smoke.exe"
  2⤵
  - Loads dropped DLL
  - Checks SCSI registry key(s)
  - Suspicious behavior: MapViewOfSection
  PID:1360

Network

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

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\4DD3.tmp

Filesize
1.6MB

MD5
4f3387277ccbd6d1f21ac5c07fe4ca68

SHA1
e16506f662dc92023bf82def1d621497c8ab5890

SHA256
767a3fc4a7a6818cdc3f0b99aaa95db694f6bcde719d2057a88b3d4df3d74fac

SHA512
9da199ac69e3c0d4e0c6307e0ab8178f12cc25cb2f14c3511f6b64e6e60a925c860f3263cb38353a97b55a71ef4d27f8cb7fa3cfc08e7c1a349fd8d209dfa219

Download Submit
memory/800-132-0x00000000005EA000-0x00000000005FB000-memory.dmp

Filesize
68KB

Download
memory/800-133-0x00000000005EA000-0x00000000005FB000-memory.dmp

Filesize
68KB

Download
memory/1360-135-0x0000000000400000-0x000000000040C000-memory.dmp

Filesize
48KB

Download
memory/1360-138-0x0000000000400000-0x000000000040C000-memory.dmp

Filesize
48KB

Download
memory/3060-137-0x0000000000410000-0x0000000000427000-memory.dmp

Filesize
92KB

Download