dcrat

General

Target

advbattoexeconverter.exe
Size

804KB
Sample

240515-waz2lacb46
MD5

83bb1b476c7143552853a2cf983c1142
SHA1

8ff8ed5c533d70a7d933ec45264dd700145acd8c
SHA256

af09248cb756488850f9e6f9a7a00149005bf47a9b2087b792ff6bd937297ffb
SHA512

6916c6c5addf43f56b9de217e1b640ab6f4d7e5a73cd33a7189f66c9b7f0b954c5aa635f92fcef5692ca0ca0c8767e97a678e90d545079b5e6d421555f5b761a
SSDEEP

24576:0xFkFHdJ8aT/iziXH6FGnYhqQuimKC6Qpor:0IdJ1KiBYhsl+r

Score

10^/10

Malware Config

Targets

- Target
  
  advbattoexeconverter.exe
- Size
  
  804KB
- MD5
  
  83bb1b476c7143552853a2cf983c1142
- SHA1
  
  8ff8ed5c533d70a7d933ec45264dd700145acd8c
- SHA256
  
  af09248cb756488850f9e6f9a7a00149005bf47a9b2087b792ff6bd937297ffb
- SHA512
  
  6916c6c5addf43f56b9de217e1b640ab6f4d7e5a73cd33a7189f66c9b7f0b954c5aa635f92fcef5692ca0ca0c8767e97a678e90d545079b5e6d421555f5b761a
- SSDEEP
  
  24576:0xFkFHdJ8aT/iziXH6FGnYhqQuimKC6Qpor:0IdJ1KiBYhsl+r
Score

10^/10

dcrat aspackv2 discovery evasion execution infostealer motw persistence phishing rat spyware stealer upx
- DcRat
  DarkCrystal(DC) is a new .NET RAT active since June 2019 capable of loading additional plugins.
  rat infostealer dcrat
- Modifies WinLogon for persistence
  persistence
- Process spawned unexpected child process
  This typically indicates the parent process was compromised via an exploit or macro.
- DCRat payload
  Detects payload of DCRat, commonly dropped by NSIS installers.
  rat
- Command and Scripting Interpreter: PowerShell
  Run Powershell and hide display window.
  execution
- Disables Task Manager via registry modification
  evasion
- Downloads MZ/PE file
- Drops file in Drivers directory
- Manipulates Digital Signatures
  Attackers can apply techniques such as changing the registry keys of authenticode & Cryptography to obtain their binary as valid.
- Modifies Windows Firewall
  evasion
- ASPack v2.12-2.42
  Detects executables packed with ASPack v2.12-2.42
  aspackv2
- Checks BIOS information in registry
  BIOS information is often read in order to detect sandboxing environments.
- Checks computer location settings
  Looks up country code configured in the registry, likely geofence.
- Executes dropped EXE
- Loads dropped DLL
- Reads user/profile data of web browsers
  Infostealers often target stored browser data, which can include saved credentials etc.
  spyware stealer
- UPX packed file
  Detects executables packed with UPX/modified UPX open source packer.
  upx
- Adds Run key to start application
  persistence
- Checks for any installed AV software in registry
- Checks installed software on the system
  Looks up Uninstall key entries in the registry to enumerate software on the system.
  discovery
- Creates a large amount of network flows
  This may indicate a network scan to discover remotely running services.
  discovery
- Enumerates connected drives
  Attempts to read the root path of hard drives other than the default C: drive.
- Mark of the Web detected: This indicates that the page was originally saved or cloned.
  phishing motw
- Drops file in System32 directory
behavioral1