Report - 401k-statement.PDF.jar

NPKI Malicious Library Malicious Packer PE File OS Processor Check DLL PE32
ScreenShot
Created 2021.08.24 17:17 Machine s1_win7_x6403
Filename 401k-statement.PDF.jar
Type Zip archive data, at least v2.0 to extract
AI Score Not founds Behavior Score
9.0
ZERO API file : clean
VT API (file) 13 detected (Java, GenericGBA, a variant of Java, WebCredential, Artemis, ai score=89)
md5 00c6403b831a9a510743b7cb1f3edc62
sha256 269ad9c64667ee8349c77e0917b256ec7b16cd256f02ba3fc7258b844a9742db
ssdeep 3072:g6XYBrmewh+tsLXyGZiv/JAlPu7HYnelp5BVHJ:g6QrmXXFIv/+YYeXLH
imphash
impfuzzy
  Network IP location

Signature (22cnts)

Level Description
watch Communicates with host for which no DNS query was performed
watch Executes one or more WMI queries
watch File has been identified by 13 AntiVirus engines on VirusTotal as malicious
watch Harvests credentials from local email clients
watch Installs itself for autorun at Windows startup
watch The process java.exe wrote an executable file to disk
notice Allocates read-write-execute memory (usually to unpack itself)
notice Changes read-write memory protection to read-execute (probably to avoid detection when setting all RWX flags at the same time)
notice Checks adapter addresses which can be used to detect virtual network interfaces
notice Creates a suspicious process
notice Creates executable files on the filesystem
notice Drops an executable to the user AppData folder
notice Executes one or more WMI queries which can be used to identify virtual machines
notice Looks up the external IP address
notice One or more potentially interesting buffers were extracted
notice Performs some HTTP requests
notice Uses Windows utilities for basic Windows functionality
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

Rules (7cnts)

Level Name Description Collection
danger NPKI_Zero File included NPKI binaries (download)
watch Malicious_Library_Zero Malicious_Library binaries (download)
watch Malicious_Packer_Zero Malicious Packer binaries (download)
info IsDLL (no description) binaries (download)
info IsPE32 (no description) binaries (download)
info OS_Processor_Check_Zero OS Processor Check binaries (download)
info PE_Header_Zero PE File Signature binaries (download)

Network (10cnts) ?

Request CC ASN Co IP4 Rule ? ZERO ?
http://ip-api.com/json/ US TUT-AS 208.95.112.1 clean
github-releases.githubusercontent.com US FASTLY 185.199.110.154 clean
repo1.maven.org US FASTLY 199.232.192.209 clean
github.com KR AMAZON-02 52.78.231.108 mailcious
ip-api.com US TUT-AS 208.95.112.1 clean
193.142.146.203 NL Maximilian Kutzner 193.142.146.203 clean
15.164.81.167 KR AMAZON-02 15.164.81.167 malware
185.199.109.154 US FASTLY 185.199.109.154 clean
208.95.112.1 US TUT-AS 208.95.112.1 clean
151.101.52.209 US FASTLY 151.101.52.209 clean

Suricata ids



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