smokeloader | 37935d58f34805538d82b34ee9c104df240fc4f5ff0ab35f4d4fc444198f97a7

General

Target

37935d58f34805538d82b34ee9c104df240fc4f5ff0ab35f4d4fc444198f97a7.exe
Size

187KB
MD5

bf519363663781093708fc05ea32c809
SHA1

69ffda8bb448d0cf28797ac3b9a18fc2ffcfa350
SHA256

37935d58f34805538d82b34ee9c104df240fc4f5ff0ab35f4d4fc444198f97a7
SHA512

5d62736a2bb424b954208e6841cb00658eadbe96555f038b5cce1494cf9d6a63ffc452dabf726da799d349896044082dfe7e4d6d2ce094c3a9005435fcb61cf8

Score

10^/10

smokeloader backdoor trojan

Malware Config

Extracted

Family

smokeloader

Version

2019

C2

http://gvs1.in/3/

http://jdcbhs.ru/3/

http://m21ch.com/3/

http://cnocks.net/3/

rc4.i32

Signatures

SmokeLoader
Modular backdoor trojan in use since 2014.
trojan backdoor smokeloader
Loads dropped DLL 1 IoCs

Processes:

37935d58f34805538d82b34ee9c104df240fc4f5ff0ab35f4d4fc444198f97a7.exe

pid process

664 37935d58f34805538d82b34ee9c104df240fc4f5ff0ab35f4d4fc444198f97a7.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

37935d58f34805538d82b34ee9c104df240fc4f5ff0ab35f4d4fc444198f97a7.exe

description	pid	process	target process
PID 1444 set thread context of 664	1444	37935d58f34805538d82b34ee9c104df240fc4f5ff0ab35f4d4fc444198f97a7.exe	37935d58f34805538d82b34ee9c104df240fc4f5ff0ab35f4d4fc444198f97a7.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:

37935d58f34805538d82b34ee9c104df240fc4f5ff0ab35f4d4fc444198f97a7.exe

description	ioc	process
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	37935d58f34805538d82b34ee9c104df240fc4f5ff0ab35f4d4fc444198f97a7.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	37935d58f34805538d82b34ee9c104df240fc4f5ff0ab35f4d4fc444198f97a7.exe
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	37935d58f34805538d82b34ee9c104df240fc4f5ff0ab35f4d4fc444198f97a7.exe

Suspicious behavior: MapViewOfSection 2 IoCs

Processes:

37935d58f34805538d82b34ee9c104df240fc4f5ff0ab35f4d4fc444198f97a7.exe

pid	process
664	37935d58f34805538d82b34ee9c104df240fc4f5ff0ab35f4d4fc444198f97a7.exe
664	37935d58f34805538d82b34ee9c104df240fc4f5ff0ab35f4d4fc444198f97a7.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

37935d58f34805538d82b34ee9c104df240fc4f5ff0ab35f4d4fc444198f97a7.exe

description	pid	process	target process
PID 1444 wrote to memory of 664	1444	37935d58f34805538d82b34ee9c104df240fc4f5ff0ab35f4d4fc444198f97a7.exe	37935d58f34805538d82b34ee9c104df240fc4f5ff0ab35f4d4fc444198f97a7.exe
PID 1444 wrote to memory of 664	1444	37935d58f34805538d82b34ee9c104df240fc4f5ff0ab35f4d4fc444198f97a7.exe	37935d58f34805538d82b34ee9c104df240fc4f5ff0ab35f4d4fc444198f97a7.exe
PID 1444 wrote to memory of 664	1444	37935d58f34805538d82b34ee9c104df240fc4f5ff0ab35f4d4fc444198f97a7.exe	37935d58f34805538d82b34ee9c104df240fc4f5ff0ab35f4d4fc444198f97a7.exe
PID 1444 wrote to memory of 664	1444	37935d58f34805538d82b34ee9c104df240fc4f5ff0ab35f4d4fc444198f97a7.exe	37935d58f34805538d82b34ee9c104df240fc4f5ff0ab35f4d4fc444198f97a7.exe
PID 1444 wrote to memory of 664	1444	37935d58f34805538d82b34ee9c104df240fc4f5ff0ab35f4d4fc444198f97a7.exe	37935d58f34805538d82b34ee9c104df240fc4f5ff0ab35f4d4fc444198f97a7.exe
PID 1444 wrote to memory of 664	1444	37935d58f34805538d82b34ee9c104df240fc4f5ff0ab35f4d4fc444198f97a7.exe	37935d58f34805538d82b34ee9c104df240fc4f5ff0ab35f4d4fc444198f97a7.exe

C:\Users\Admin\AppData\Local\Temp\37935d58f34805538d82b34ee9c104df240fc4f5ff0ab35f4d4fc444198f97a7.exe
"C:\Users\Admin\AppData\Local\Temp\37935d58f34805538d82b34ee9c104df240fc4f5ff0ab35f4d4fc444198f97a7.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1444

C:\Users\Admin\AppData\Local\Temp\37935d58f34805538d82b34ee9c104df240fc4f5ff0ab35f4d4fc444198f97a7.exe
"C:\Users\Admin\AppData\Local\Temp\37935d58f34805538d82b34ee9c104df240fc4f5ff0ab35f4d4fc444198f97a7.exe"
2⤵
- Loads dropped DLL
- Checks SCSI registry key(s)
- Suspicious behavior: MapViewOfSection
PID:664

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

Peripheral Device Discovery

1

T1120

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\CC4F.tmp
Filesize
1.6MB

MD5
4f3387277ccbd6d1f21ac5c07fe4ca68

SHA1
e16506f662dc92023bf82def1d621497c8ab5890

SHA256
767a3fc4a7a6818cdc3f0b99aaa95db694f6bcde719d2057a88b3d4df3d74fac

SHA512
9da199ac69e3c0d4e0c6307e0ab8178f12cc25cb2f14c3511f6b64e6e60a925c860f3263cb38353a97b55a71ef4d27f8cb7fa3cfc08e7c1a349fd8d209dfa219

Download Submit
memory/384-137-0x0000000000770000-0x0000000000786000-memory.dmp

Filesize
88KB

Download
memory/664-131-0x0000000000000000-mapping.dmp

Download
memory/664-132-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download
memory/664-134-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download
memory/664-136-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download
memory/664-138-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download
memory/1444-130-0x0000000000557000-0x0000000000562000-memory.dmp

Filesize
44KB

Download
memory/1444-133-0x0000000000557000-0x0000000000562000-memory.dmp

Filesize
44KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads