Malicious PDF — malware analysis report

Static analysis result for SHA-256 772219b30bb06489…

MALICIOUS

PDF

57.8 KB Created: 2020-12-04 12:39:30 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-31
MD5: 05e76feddb228331600ec8d9d2e69b03 SHA-1: dbc35c994597e7c409ba469b5c72f44a6f04135a SHA-256: 772219b30bb064890363f48b6d658a5159facfa8f7ca67943bb7049e4039ac3c
174 Risk Score

Malware Insights

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

This PDF file is identified as malicious by multiple heuristics and a machine learning classifier, specifically flagging it as a phishing lure. It contains a single image and minimal text, typical of a screenshot-based attack. The critical finding is a link to known malicious redirector infrastructure at 'https://ggtraff.ru/aws?utm_term=2002+chevrolet+avalanche+owners+manual+pdf', which is the primary vector for the attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LURE
    PDF has 1 image(s), only 0 text block(s), carries a click-outward action, and is only 57 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
  • 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://ggtraff.ru/aws?utm_term=2002+chevrolet+avalanche+owners+manual+pdf In PDF document text
    • https://webijizili.weebly.com/uploads/1/3/4/6/134609257/98317.pdfIn PDF document text
    • https://dojomataz.weebly.com/uploads/1/3/4/7/134700303/kivovafajisitowigi.pdfIn PDF document text
    • https://nijubalalo.weebly.com/uploads/1/3/1/4/131453980/lipotezuwikonuxusi.pdfIn PDF document text
    • https://morizuni.weebly.com/uploads/1/3/4/6/134606759/2a5a051bfc2.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/3b2be80b-f189-4998-847a-d68e881cc62f/live2d_cubism_modeler.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/09def0b6-ec9d-42dc-af6b-9ccfe7735a13/cop_and_robber_minecraft.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cc58c2e9-467c-4808-8428-6808dad4d03c/hippowdon_temple_map.pdfIn PDF document text
    • https://s3.amazonaws.com/fasanag/70189807656.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/97215b98-7b8b-42b5-90e0-9e3a3939a535/maybe_this_time_kasie_west.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3f74cc2a-a0ae-48e5-b366-8b26635fa657/wubemerix.pdfIn PDF document text
    • https://s3.amazonaws.com/mewezekilafef/tobitujuropozavumedotusor.pdfIn PDF document text
    • https://s3.amazonaws.com/titugome/dutowafokopaxexutumo.pdfIn PDF document text
    • https://s3.amazonaws.com/nisoxow/cryptocurrency_meaning.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a5fb3aac-b658-42cf-b57a-230203d66596/85172218160.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6afc3f07-de58-4045-8b73-8088f7076d83/suicide_squad_full_movie_free_no_dow.pdfIn PDF document text
    • https://s3.amazonaws.com/xunilukegez/nowizusuvebadexemax.pdfIn PDF document text
    • https://s3.amazonaws.com/jeworurowam/ming_hing_restaurant.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ad95.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAD95 5724 bytes
SHA-256: aea3c209594f6f979e46f46e1783988175940d58b3c981a05ffc732d1e9011f8
font_01_sfnt_off0000c0fd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC0FD 7484 bytes
SHA-256: 019831ad7d76e3ffeedc51bed0ead9326a85dc6e7b99158a2b191ebc40bd874a

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