smokeloader

General

Target

033bd23a236b70e2fe45c57a9b9a1155.exe
Size

950KB
Sample

211209-1tw69sffdl
MD5

033bd23a236b70e2fe45c57a9b9a1155
SHA1

cf55475105cf32e3fb63d70dda18b7cb8d794041
SHA256

56125010c5571fa10c9eb077f5620108f9dae9d5aea04880bfe8ee2a112c3c13
SHA512

d41ed9bedeeb04dd578fbcde94dcba2a278d751b9e5308e5f87d59f7e3c5e01c5ee1f559e10ca16344bab8653c0d530a535cc96065fcad12632ee10978f0d0c3

Score

10^/10

Malware Config

Extracted

Family

smokeloader

Version

2020

C2

http://rcacademy.at/upload/

http://e-lanpengeonline.com/upload/

http://vjcmvz.cn/upload/

http://galala.ru/upload/

http://witra.ru/upload/

rc4.i32

Targets

- Target
  
  033bd23a236b70e2fe45c57a9b9a1155.exe
- Size
  
  950KB
- MD5
  
  033bd23a236b70e2fe45c57a9b9a1155
- SHA1
  
  cf55475105cf32e3fb63d70dda18b7cb8d794041
- SHA256
  
  56125010c5571fa10c9eb077f5620108f9dae9d5aea04880bfe8ee2a112c3c13
- SHA512
  
  d41ed9bedeeb04dd578fbcde94dcba2a278d751b9e5308e5f87d59f7e3c5e01c5ee1f559e10ca16344bab8653c0d530a535cc96065fcad12632ee10978f0d0c3
Score

10^/10

xmrig discovery evasion miner spyware stealer suricata trojan smokeloader backdoor persistence
- Modifies Windows Defender Real-time Protection settings
  evasion trojan
- Process spawned unexpected child process
  This typically indicates the parent process was compromised via an exploit or macro.
- SmokeLoader
  Modular backdoor trojan in use since 2014.
  trojan backdoor smokeloader
- Suspicious use of NtCreateProcessExOtherParentProcess
- suricata: ET MALWARE GCleaner Downloader Activity M5
  suricata: ET MALWARE GCleaner Downloader Activity M5
  suricata
- suricata: ET MALWARE Terse alphanumeric executable downloader high likelihood of being hostile
  suricata: ET MALWARE Terse alphanumeric executable downloader high likelihood of being hostile
  suricata
- suricata: ET MALWARE Win32/Unk.HRESQ! MultiDownloader Checkin
  suricata: ET MALWARE Win32/Unk.HRESQ! MultiDownloader Checkin
  suricata
- xmrig
  XMRig is a high performance, open source, cross platform CPU/GPU miner.
  miner xmrig
- Disables taskbar notifications via registry modification
  evasion
- Downloads MZ/PE file
- Drops file in Drivers directory
- Executes dropped EXE
- Checks computer location settings
  Looks up country code configured in the registry, likely geofence.
- Loads dropped DLL
- Reads user/profile data of web browsers
  Infostealers often target stored browser data, which can include saved credentials etc.
  spyware stealer
- Windows security modification
  evasion trojan
- Adds Run key to start application
  persistence
- Checks installed software on the system
  Looks up Uninstall key entries in the registry to enumerate software on the system.
  discovery
- Enumerates connected drives
  Attempts to read the root path of hard drives other than the default C: drive.
- Legitimate hosting services abused for malware hosting/C2
- Looks up external IP address via web service
  Uses a legitimate IP lookup service to find the infected system's external IP.
- Drops file in System32 directory
- Suspicious use of SetThreadContext
behavioral1 behavioral2