smokeloader | 5af8a80f646b2d5cb567bddf0c9e0907267610310211a69cd28d708070d569a2

Analysis

max time kernel
149s
max time network
155s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
26-08-2024 00:28

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General

Target

2024-08-25_c7497b483d525b9baca75bb3066ac7f0_mafia.exe
Size

154KB
MD5

c7497b483d525b9baca75bb3066ac7f0
SHA1

f18de84a512c60f20c9cc8d7ca9eafcd0eceaa49
SHA256

5af8a80f646b2d5cb567bddf0c9e0907267610310211a69cd28d708070d569a2
SHA512

7a2058ce528be5325ed341c2beeaa338f0b02da009961484fd221a6eab3584b36912614b0e9bbb5972ecbbc2813a01aa6d77eac16d7a3d36f91e26858af6904b
SSDEEP

3072:ghKKUaOlhLwGYSy/Jq6CEFVAu8qk+5NmmFL5E0MdLPN:oK9aOlh6t/0+5NlobN

Score

10^/10

smokeloader ku11 backdoor discovery trojan

Malware Config

Extracted

Family

smokeloader

Botnet

ku11

Signatures

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

Loads dropped DLL 1 IoCs

pid	Process
4212	2024-08-25_c7497b483d525b9baca75bb3066ac7f0_mafia.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1408	4212	WerFault.exe	87

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	2024-08-25_c7497b483d525b9baca75bb3066ac7f0_mafia.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	2024-08-25_c7497b483d525b9baca75bb3066ac7f0_mafia.exe
Key queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	2024-08-25_c7497b483d525b9baca75bb3066ac7f0_mafia.exe
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	2024-08-25_c7497b483d525b9baca75bb3066ac7f0_mafia.exe

C:\Users\Admin\AppData\Local\Temp\2024-08-25_c7497b483d525b9baca75bb3066ac7f0_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2024-08-25_c7497b483d525b9baca75bb3066ac7f0_mafia.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Checks SCSI registry key(s)
PID:4212
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4212 -s 500
  2⤵
  - Program crash
  PID:1408

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 4212 -ip 4212
1⤵
PID:2616

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

C:\Users\Admin\AppData\Local\Temp\5C1B.tmp

Filesize
1.6MB

MD5
4f3387277ccbd6d1f21ac5c07fe4ca68

SHA1
e16506f662dc92023bf82def1d621497c8ab5890

SHA256
767a3fc4a7a6818cdc3f0b99aaa95db694f6bcde719d2057a88b3d4df3d74fac

SHA512
9da199ac69e3c0d4e0c6307e0ab8178f12cc25cb2f14c3511f6b64e6e60a925c860f3263cb38353a97b55a71ef4d27f8cb7fa3cfc08e7c1a349fd8d209dfa219

Download Submit
memory/4212-1-0x0000000000960000-0x000000000096A000-memory.dmp

Filesize
40KB

Download
memory/4212-2-0x0000000000980000-0x000000000098A000-memory.dmp

Filesize
40KB

Download
memory/4212-0-0x0000000000830000-0x0000000000831000-memory.dmp

Filesize
4KB

Download
memory/4212-7-0x0000000000980000-0x000000000098A000-memory.dmp

Filesize
40KB

Download