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

1040 37935d58f34805538d82b34ee9c104df240fc4f5ff0ab35f4d4fc444198f97a7.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

37935d58f34805538d82b34ee9c104df240fc4f5ff0ab35f4d4fc444198f97a7.exe

description	pid	process	target process
PID 908 set thread context of 1040	908	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 opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	37935d58f34805538d82b34ee9c104df240fc4f5ff0ab35f4d4fc444198f97a7.exe
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	37935d58f34805538d82b34ee9c104df240fc4f5ff0ab35f4d4fc444198f97a7.exe
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	37935d58f34805538d82b34ee9c104df240fc4f5ff0ab35f4d4fc444198f97a7.exe

Suspicious behavior: MapViewOfSection 2 IoCs

Processes:

37935d58f34805538d82b34ee9c104df240fc4f5ff0ab35f4d4fc444198f97a7.exe

pid	process
1040	37935d58f34805538d82b34ee9c104df240fc4f5ff0ab35f4d4fc444198f97a7.exe
1040	37935d58f34805538d82b34ee9c104df240fc4f5ff0ab35f4d4fc444198f97a7.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

37935d58f34805538d82b34ee9c104df240fc4f5ff0ab35f4d4fc444198f97a7.exe

description	pid	process	target process
PID 908 wrote to memory of 1040	908	37935d58f34805538d82b34ee9c104df240fc4f5ff0ab35f4d4fc444198f97a7.exe	37935d58f34805538d82b34ee9c104df240fc4f5ff0ab35f4d4fc444198f97a7.exe
PID 908 wrote to memory of 1040	908	37935d58f34805538d82b34ee9c104df240fc4f5ff0ab35f4d4fc444198f97a7.exe	37935d58f34805538d82b34ee9c104df240fc4f5ff0ab35f4d4fc444198f97a7.exe
PID 908 wrote to memory of 1040	908	37935d58f34805538d82b34ee9c104df240fc4f5ff0ab35f4d4fc444198f97a7.exe	37935d58f34805538d82b34ee9c104df240fc4f5ff0ab35f4d4fc444198f97a7.exe
PID 908 wrote to memory of 1040	908	37935d58f34805538d82b34ee9c104df240fc4f5ff0ab35f4d4fc444198f97a7.exe	37935d58f34805538d82b34ee9c104df240fc4f5ff0ab35f4d4fc444198f97a7.exe
PID 908 wrote to memory of 1040	908	37935d58f34805538d82b34ee9c104df240fc4f5ff0ab35f4d4fc444198f97a7.exe	37935d58f34805538d82b34ee9c104df240fc4f5ff0ab35f4d4fc444198f97a7.exe
PID 908 wrote to memory of 1040	908	37935d58f34805538d82b34ee9c104df240fc4f5ff0ab35f4d4fc444198f97a7.exe	37935d58f34805538d82b34ee9c104df240fc4f5ff0ab35f4d4fc444198f97a7.exe
PID 908 wrote to memory of 1040	908	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:908

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:1040

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

\Users\Admin\AppData\Local\Temp\CC4F.tmp
Filesize
1.2MB

MD5
d124f55b9393c976963407dff51ffa79

SHA1
2c7bbedd79791bfb866898c85b504186db610b5d

SHA256
ea1e16247c848c8c171c4cd1fa17bc5a018a1fcb0c0dac25009066b6667b8eef

SHA512
278fe3a4b1fbbe700e4f4483b610133e975e36e101455661d5197bd892a68839b9d555499040d200c92aefa9e3819380e395c0cd85d5fc845c6364d128a8cf06

Download Submit
memory/908-54-0x00000000005F9000-0x0000000000604000-memory.dmp

Filesize
44KB

Download
memory/908-55-0x00000000005F9000-0x0000000000604000-memory.dmp

Filesize
44KB

Download
memory/1040-56-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download
memory/1040-57-0x0000000000402CFC-mapping.dmp

Download
memory/1040-58-0x0000000075DE1000-0x0000000075DE3000-memory.dmp

Filesize
8KB

Download
memory/1040-60-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download
memory/1272-61-0x00000000029B0000-0x00000000029C6000-memory.dmp

Filesize
88KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads