smokeloader | ca0aef7482908df28ea75b42f8b26236aecfcc5b37421fdc0d309cee15500506

Analysis

max time kernel
148s
max time network
157s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
04/11/2024, 14:34

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General

Target
arnatic_2.exe
Size 323KB
Sample241104-rxgfjs1dpf
SHA256 d9d4fee430f16d00256908e81a7b735954cad46807da9cd40c28435e5bcf0105
MD5 69b2b0208246bf893409e69a862eef76
SHA1 839b1236dc249fa9f19f717ffb42896e09fd9d5e
SHA512 422762cbd84626f9bf95735479b6832f1970b8498e3f767275c62a9c94c7d46b4525b1af93f3925b2a0fb01bc73ec246792eab1ce02a9245f33cf8d02011e7d8
SSDEEP 6144:4rYjDIFTxzTnnKDLLFExp2HVfdwQlUb2Axn14ubuJEOEPKriC5:7jDcTxzTnKD8p2HVfGQUHF14ugAlu
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

smokeloader pub6 backdoor discovery trojan

Malware Config

Extracted

Family

smokeloader

Botnet

pub6

Signatures

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

Loads dropped DLL 1 IoCs

pid	Process
2960	arnatic_2.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3720	2960	WerFault.exe	83

System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	arnatic_2.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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	arnatic_2.exe
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	arnatic_2.exe
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	arnatic_2.exe

C:\Users\Admin\AppData\Local\Temp\arnatic_2.exe
"C:\Users\Admin\AppData\Local\Temp\arnatic_2.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Checks SCSI registry key(s)
PID:2960
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2960 -s 344
  2⤵
  - Program crash
  PID:3720

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 384 -p 2960 -ip 2960
1⤵
PID:1944

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

CC4F.tmp

Path C:\Users\Admin\AppData\Local\Temp\CC4F.tmp
Size 1.6MB
SHA256 767a3fc4a7a6818cdc3f0b99aaa95db694f6bcde719d2057a88b3d4df3d74fac
MD5 4f3387277ccbd6d1f21ac5c07fe4ca68
SHA1 e16506f662dc92023bf82def1d621497c8ab5890
SHA512 9da199ac69e3c0d4e0c6307e0ab8178f12cc25cb2f14c3511f6b64e6e60a925c860f3263cb38353a97b55a71ef4d27f8cb7fa3cfc08e7c1a349fd8d209dfa219
SSDEEP 24576:qhYK3o0FvOh/e8AuDq8TJqbEPVVdqi90gvuPGO12HoIGTufqN8:2XFvO5egq8TMbEL59JCKSN
MD5 SHA1 SHA512 SSDEEP

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memory/2960-1-0x0000000000A00000-0x0000000000B00000-memory.dmp

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memory/2960-2-0x0000000000970000-0x0000000000979000-memory.dmp

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memory/2960-3-0x0000000000400000-0x0000000000409000-memory.dmp

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memory/2960-10-0x0000000000400000-0x0000000000409000-memory.dmp

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memory/2960-9-0x0000000000970000-0x0000000000979000-memory.dmp

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memory/2960-8-0x0000000000400000-0x00000000008F0000-memory.dmp

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads