Report - b.pif

PWS .NET framework RAT Generic Malware Antivirus SMTP PWS[m] KeyLogger PDF AntiDebug AntiVM .NET EXE PE32 PE File ZIP Format
ScreenShot
Created 2023.03.24 09:34 Machine s1_win7_x6403
Filename b.pif
Type PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows
AI Score
7
Behavior Score
20.2
ZERO API file : clean
VT API (file) 20 detected (AIDetectNet, Artemis, malicious, confidence, 100%, Malcode, gdn30, high confidence, Kryptik, AIKP, score, PWSX, Wacapew, Detected, MachineLearning, Anomalous, MSIL@AI, MSIL2, B7FZHi6Hb2x9p7J83y6dOQ, susgen, AGUH)
md5 424811420bb77c6b2aeee8fd5fd651e0
sha256 22d6a6eb47dda91310bfe3726acca1576b1b4023bb9a8f3d79ac1c6fc9da12d2
ssdeep 12288:28QtOUZwdEibPM3T3k5tDQEraal/L/59s/7EIpixzFmrP2m+R5mUF:28QtOUZGEu4mmWhL/5o79pOzku7R5T
imphash f34d5f2d4577ed6d9ceec516c1f5a744
impfuzzy 3:rGsLdAIEK:tf
  Network IP location

Signature (45cnts)

Level Description
danger Executed a process and injected code into it
warning File has been identified by 20 AntiVirus engines on VirusTotal as malicious
watch Allocates execute permission to another process indicative of possible code injection
watch Attempts to create or modify system certificates
watch Attempts to identify installed AV products by installation directory
watch Code injection by writing an executable or DLL to the memory of another process
watch Communicates with host for which no DNS query was performed
watch Harvests credentials from local email clients
watch Harvests credentials from local FTP client softwares
watch Harvests information related to installed instant messenger clients
watch Looks for the Windows Idle Time to determine the uptime
watch Network communications indicative of a potential document or script payload download was initiated by the process acrord32.exe
watch One or more non-whitelisted processes were created
watch Potential code injection by writing to the memory of another process
watch Resumed a suspended thread in a remote process potentially indicative of process injection
watch Used NtSetContextThread to modify a thread in a remote process indicative of process injection
notice A process created a hidden window
notice Allocates read-write-execute memory (usually to unpack itself)
notice Checks adapter addresses which can be used to detect virtual network interfaces
notice Checks for the Locally Unique Identifier on the system for a suspicious privilege
notice Connects to a Dynamic DNS Domain
notice Creates (office) documents on the filesystem
notice Creates a shortcut to an executable file
notice Creates a suspicious process
notice Drops a binary and executes it
notice HTTP traffic contains suspicious features which may be indicative of malware related traffic
notice Looks up the external IP address
notice One or more potentially interesting buffers were extracted
notice Performs some HTTP requests
notice Queries for potentially installed applications
notice Queries the disk size which could be used to detect virtual machine with small fixed size or dynamic allocation
notice Searches running processes potentially to identify processes for sandbox evasion
notice Steals private information from local Internet browsers
notice Terminates another process
notice The binary likely contains encrypted or compressed data indicative of a packer
notice Uses Windows utilities for basic Windows functionality
notice Yara rule detected in process memory
info Checks amount of memory in system
info Checks if process is being debugged by a debugger
info Command line console output was observed
info One or more processes crashed
info Queries for the computername
info This executable has a PDB path
info Tries to locate where the browsers are installed
info Uses Windows APIs to generate a cryptographic key

Rules (21cnts)

Level Name Description Collection
warning Generic_Malware_Zero Generic Malware binaries (download)
watch Antivirus Contains references to security software binaries (download)
watch Win32_Trojan_PWS_Net_1_Zero Win32 Trojan PWS .NET Azorult binaries (upload)
notice Generic_PWS_Memory_Zero PWS Memory memory
notice KeyLogger Run a KeyLogger memory
notice Network_SMTP_dotNet Communications smtp memory
notice PDF_Format_Z PDF Format binaries (download)
info anti_dbg Checks if being debugged memory
info DebuggerCheck__GlobalFlags (no description) memory
info DebuggerCheck__QueryInfo (no description) memory
info DebuggerHiding__Active (no description) memory
info DebuggerHiding__Thread (no description) memory
info disable_dep Bypass DEP memory
info Is_DotNET_EXE (no description) binaries (upload)
info IsPE32 (no description) binaries (upload)
info PE_Header_Zero PE File Signature binaries (upload)
info SEH__vectored (no description) memory
info ThreadControl__Context (no description) memory
info win_hook Affect hook table memory
info zip_file_format ZIP file format binaries (download)
info Win_Backdoor_AsyncRAT_Zero Win Backdoor AsyncRAT binaries (upload)

Network (10cnts) ?

Request CC ASN Co IP4 Rule ? ZERO ?
http://acroipm2.adobe.com/20/rdr/ENU/win/nooem/none/consumer/277_20_6_20042.zip US Akamai International B.V. 23.2.16.10 clean
http://37.139.128.83/golden.pdf Unknown 37.139.128.83 27987 mailcious
http://acroipm2.adobe.com/20/rdr/ENU/win/nooem/none/consumer/message.zip US Akamai International B.V. 23.2.16.10 clean
http://acroipm2.adobe.com/20/rdr/ENU/win/nooem/none/consumer/281_20_6_20042.zip US AKAMAI-AS 23.202.35.57 clean
http://acroipm2.adobe.com/20/rdr/ENU/win/nooem/none/consumer/280_20_6_20042.zip US Akamai International B.V. 23.2.16.10 clean
http://acroipm2.adobe.com/20/rdr/ENU/win/nooem/none/consumer/278_20_6_20042.zip US Akamai International B.V. 23.2.16.10 clean
http://checkip.dyndns.org/ US ORACLE-BMC-31898 193.122.6.168 clean
checkip.dyndns.org US ORACLE-BMC-31898 193.122.6.168 clean
193.122.6.168 US ORACLE-BMC-31898 193.122.6.168 clean
37.139.128.83 Unknown 37.139.128.83 mailcious

Suricata ids

PE API

IAT(Import Address Table) Library

mscoree.dll
 0x402000 _CorExeMain

EAT(Export Address Table) is none



Similarity measure (PE file only) - Checking for service failure