Malicious PDF — malware analysis report

Static analysis result for SHA-256 d563be7b0cb82f51…

MALICIOUS

PDF

76.5 KB Created: 2021-03-01 12:42:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-03
MD5: 258254bb6e9e6802ad530aa428bcd570 SHA-1: 53822115b619ab91f35b0d1d9d761f5c9a61b273 SHA-256: d563be7b0cb82f514f9a8f83cb636c35b07cb098263b7269b5b3f44a052a6061
186 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains a large number of external links, many hosted on disposable domains, suggesting a link farm or phishing campaign. The embedded URLs are likely used to redirect users to malicious sites, potentially for credential harvesting or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://maypoin.ru/strik?utm_term=how+to+close+the+cosco+high+chair PDF link annotation
    • https://fezagigix.weebly.com/uploads/1/3/0/8/130813643/ropezirumifavod.pdfIn PDF document text
    • https://dubakaxejevam.weebly.com/uploads/1/3/2/6/132696109/cb011414273.pdfIn PDF document text
    • https://feposejixadolo.weebly.com/uploads/1/3/4/7/134744373/korenurizel.pdfIn PDF document text
    • http://zoluvukabufe.iblogger.org/nosofododuvala.pdfIn PDF document text
    • https://dorikorojuj.weebly.com/uploads/1/3/3/9/133987202/xopibuza.pdfIn PDF document text
    • https://milunuxuv.weebly.com/uploads/1/3/4/5/134529922/4169388.pdfIn PDF document text
    • https://rulafusojuxibaw.weebly.com/uploads/1/3/4/2/134265871/koditofo-sujawa-kovigi.pdfIn PDF document text
    • https://cdn.sqhk.co/wifinalimow/8gc6A2J/nidolopoxoxedofakebinivef.pdfIn PDF document text
    • http://lixorajepidil.mygamesonline.org/howls_moving_castle_wallpaper_engine.pdfIn PDF document text
    • https://cdn.sqhk.co/botonerepap/ihhgjie/3509_herons_circle_reno_nv.pdfIn PDF document text
    • https://cdn.sqhk.co/sozivowemin/XhgujbL/cat_escape_room_london.pdfIn PDF document text
    • https://dodonixufaf.weebly.com/uploads/1/3/1/4/131453867/puripa_nojonafoxoj_miwelowitiwifi_tavuz.pdfIn PDF document text
    • https://cdn.sqhk.co/woxemumi/0ahcjcY/microbay_home_golf_simulator.pdfIn PDF document text
    • https://cdn.sqhk.co/kinifukix/jLifcjX/sound_effect_download_free_explosion.pdfIn PDF document text
    • https://cdn.sqhk.co/risenulowo/qw4hfXz/sizavukules.pdfIn PDF document text
    • http://worelimupuvefam.mywebcommunity.org/tc_nova_delay_factory_reset.pdfIn PDF document text
    • http://kedugobepuged.mywebcommunity.org/asus_rt-n66u_firmware_alternative.pdfIn PDF document text
    • https://cdn.sqhk.co/roretuduva/jgqoqhi/8470271848.pdfIn PDF document text
    • https://cdn.sqhk.co/fosigigamef/NhfLjdq/jotinusuw.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • http://jimomurapujivo.onlinewebshop.net/12754516930.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e2a1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE2A1 4796 bytes
SHA-256: af970abf7b776e2355c6602a2b183b99d2dd888db837765add8a9e804eb525a9
font_01_sfnt_off0000f30d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF30D 10220 bytes
SHA-256: e94e751ce360367b7a137d218caaa559097953e6025895f4c918e4edbfe3b329
font_02_sfnt_off00011622.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11622 4324 bytes
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e

Open this report in the interactive analyzer, or submit your own file for analysis.