smokeloader | d5bba713d11ebbb7a91be59dae0f2d4b818897fe756b854dfe40babe7664c173

Analysis

max time kernel
150s
max time network
120s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
26-06-2024 07:18

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General

Target

e1b59d2805b38262b9967bce3e719dbf.exe
Size

317KB
MD5

e1b59d2805b38262b9967bce3e719dbf
SHA1

4081416cfaa76941981c34518d45b60e8d4b2013
SHA256

d5bba713d11ebbb7a91be59dae0f2d4b818897fe756b854dfe40babe7664c173
SHA512

bcea30a8f2a10aed0e2c97133734a34a850c18ee9447966ed8cdae8bbf72b98ebd2703a7cadf53b8991ef5eb3047d871242e990a4b7baf00eda8ca5f5f7dda35
SSDEEP

3072:uuRL5Z0OG4ZT2jqCXr+9P9TlHp5Sn5ma9l2MyM8MITIk:7L/0ZkT22e6FTlHTShgMBk

Score

10^/10

smokeloader pub1 backdoor trojan

Malware Config

Extracted

Family

smokeloader

Botnet

pub1

Extracted

Family

smokeloader

Version

2022

http://movlat.com/tmp/

http://llcbc.org/tmp/

http://lindex24.ru/tmp/

http://qeqei.xyz/tmp/

rc4.i32

Signatures

SmokeLoader
Modular backdoor trojan in use since 2014.
trojan backdoor smokeloader
Deletes itself 1 IoCs

Processes:

pid process

1376
Executes dropped EXE 1 IoCs

Processes:

ecrahsf

pid process

1900 ecrahsf

pid	process
1376

pid	process
1900	ecrahsf

Checks SCSI registry key(s) 3 TTPs 6 IoCs

SCSI information is often read in order to detect sandboxing environments.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

Processes:

e1b59d2805b38262b9967bce3e719dbf.exeecrahsf

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	e1b59d2805b38262b9967bce3e719dbf.exe
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	e1b59d2805b38262b9967bce3e719dbf.exe
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	e1b59d2805b38262b9967bce3e719dbf.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	ecrahsf
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	ecrahsf
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	ecrahsf

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

e1b59d2805b38262b9967bce3e719dbf.exe

pid	process
2368	e1b59d2805b38262b9967bce3e719dbf.exe
2368	e1b59d2805b38262b9967bce3e719dbf.exe
1376
1376
1376
1376
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1376

Suspicious behavior: MapViewOfSection 2 IoCs

Processes:

e1b59d2805b38262b9967bce3e719dbf.exeecrahsf

pid process

2368 e1b59d2805b38262b9967bce3e719dbf.exe
1900 ecrahsf
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

pid process

1376
1376
Suspicious use of SendNotifyMessage 2 IoCs

Processes:

pid process

1376
1376

pid	process
1376
1376

pid	process
1376
1376

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

taskeng.exe

description	pid	process	target process
PID 2016 wrote to memory of 1900	2016	taskeng.exe	ecrahsf
PID 2016 wrote to memory of 1900	2016	taskeng.exe	ecrahsf
PID 2016 wrote to memory of 1900	2016	taskeng.exe	ecrahsf
PID 2016 wrote to memory of 1900	2016	taskeng.exe	ecrahsf

C:\Users\Admin\AppData\Local\Temp\e1b59d2805b38262b9967bce3e719dbf.exe
"C:\Users\Admin\AppData\Local\Temp\e1b59d2805b38262b9967bce3e719dbf.exe"
1⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
PID:2368

C:\Windows\system32\taskeng.exe
taskeng.exe {3170AE73-3CD9-44BB-9097-7B00876D726F} S-1-5-21-3627615824-4061627003-3019543961-1000:SCFGBRBT\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:2016

C:\Users\Admin\AppData\Roaming\ecrahsf
C:\Users\Admin\AppData\Roaming\ecrahsf
2⤵
- Executes dropped EXE
- Checks SCSI registry key(s)
- Suspicious behavior: MapViewOfSection
PID:1900

Network

MITRE ATT&CK Matrix ATT&CK v13

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

Resource Development

Reconnaissance

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\ecrahsf
Filesize
317KB

MD5
e1b59d2805b38262b9967bce3e719dbf

SHA1
4081416cfaa76941981c34518d45b60e8d4b2013

SHA256
d5bba713d11ebbb7a91be59dae0f2d4b818897fe756b854dfe40babe7664c173

SHA512
bcea30a8f2a10aed0e2c97133734a34a850c18ee9447966ed8cdae8bbf72b98ebd2703a7cadf53b8991ef5eb3047d871242e990a4b7baf00eda8ca5f5f7dda35

Download Submit
memory/1376-4-0x0000000002960000-0x0000000002976000-memory.dmp

Filesize
88KB

Download
memory/1376-16-0x0000000002D90000-0x0000000002DA6000-memory.dmp

Filesize
88KB

Download
memory/1900-15-0x0000000000400000-0x000000000236B000-memory.dmp

Filesize
31.4MB

Download
memory/1900-17-0x0000000000400000-0x000000000236B000-memory.dmp

Filesize
31.4MB

Download
memory/2368-1-0x0000000000290000-0x0000000000390000-memory.dmp

Filesize
1024KB

Download
memory/2368-3-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2368-2-0x00000000001B0000-0x00000000001BB000-memory.dmp

Filesize
44KB

Download
memory/2368-8-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2368-5-0x0000000000400000-0x000000000236B000-memory.dmp

Filesize
31.4MB

Download