smokeloader | 6608c17499d7212c1c8f4450a2c6fec8627f8a0f1f7015dab5920b271696c84b

Analysis

max time kernel
111s
max time network
117s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
24/08/2024, 22:06

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General

Target

2a85c580c3b709fea4c0f7c469703070N.exe
Size

208KB
MD5

2a85c580c3b709fea4c0f7c469703070
SHA1

5028450b3a79bd3d8523e976c3ef72c5d63d8323
SHA256

6608c17499d7212c1c8f4450a2c6fec8627f8a0f1f7015dab5920b271696c84b
SHA512

dbdb4bc070d7d92ba03990699fd5984d47e92987f1f37655301475dc3a1d8ddf7af8e99901d537fa569562f727b888e75bbcb12d405d5b4259e540c62b276ef0
SSDEEP

3072:O/xUH0ywakB4VvLqOoOflq15iJiShvOX20c19P4JzVbdA45j86AT9R0uSk:O/xUgakB4VvLqzukgwc114ZVX8530j

Score

10^/10

smokeloader pub4 backdoor discovery trojan

Malware Config

Extracted

Family

smokeloader

Botnet

pub4

Signatures

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

Loads dropped DLL 1 IoCs

pid	Process
3320	2a85c580c3b709fea4c0f7c469703070N.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3752	3320	WerFault.exe	85

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	2a85c580c3b709fea4c0f7c469703070N.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 queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	2a85c580c3b709fea4c0f7c469703070N.exe
Key enumerated	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	2a85c580c3b709fea4c0f7c469703070N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI	2a85c580c3b709fea4c0f7c469703070N.exe

C:\Users\Admin\AppData\Local\Temp\2a85c580c3b709fea4c0f7c469703070N.exe
"C:\Users\Admin\AppData\Local\Temp\2a85c580c3b709fea4c0f7c469703070N.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Checks SCSI registry key(s)
PID:3320
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3320 -s 380
  2⤵
  - Program crash
  PID:3752

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 3320 -ip 3320
1⤵
PID:3608

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

Replay Monitor

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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/3320-1-0x00000000006D0000-0x00000000007D0000-memory.dmp

Filesize
1024KB

Download
memory/3320-3-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/3320-2-0x00000000004B0000-0x00000000004B9000-memory.dmp

Filesize
36KB

Download
memory/3320-10-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/3320-9-0x00000000004B0000-0x00000000004B9000-memory.dmp

Filesize
36KB

Download
memory/3320-8-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download