Malicious PDF — malware analysis report

Static analysis result for SHA-256 c2eea85e41a1ea9a…

MALICIOUS

PDF

71.1 KB Created: 2021-05-23 23:13:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-13
MD5: 9f370ba1b04d25d482419e659804aa42 SHA-1: ef93f80fa769639f85c3d04a4bb76e4b6c1ebd79 SHA-256: c2eea85e41a1ea9af61860693608c47f3e5dba490f46765487bcd5ef166d18a9
186 Risk Score

Malware Insights

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

This PDF file exhibits characteristics of a link farm, containing numerous external links to various websites, including 'https://ponafet.ru/strik?utm_term=just+already+yet+still+ever+never+exercises+pdf'. The presence of a large number of links on disposable hosting suggests an attempt to manipulate search engine results or direct users to potentially malicious content. ClamAV and ML classifiers also flagged this file as malicious, indicating a phishing or trojan-like behavior.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://ponafet.ru/strik?utm_term=just+already+yet+still+ever+never+exercises+pdf PDF link annotation
    • https://sofifego.weebly.com/uploads/1/3/4/8/134899758/492ca0436.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4411696/normal_603fb2f8a1dc2.pdfIn PDF document text
    • https://rutejiredoratel.weebly.com/uploads/1/3/1/3/131383841/6954577.pdfIn PDF document text
    • https://xigobiniliw.weebly.com/uploads/1/3/5/2/135298108/73e0f6dc154801.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4446770/normal_5fe0b4d7d6429.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4382962/normal_60027c418e64b.pdfIn PDF document text
    • https://rujogapojepon.weebly.com/uploads/1/3/4/5/134597846/xurapubasuxip.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383165/normal_6013858a32e04.pdfIn PDF document text
    • https://tiferivirukituk.weebly.com/uploads/1/3/4/4/134433041/dfa85bdb.pdfIn PDF document text
    • https://kegadurab.weebly.com/uploads/1/3/4/0/134096735/babozuzagabokiw-guvasozemumoguv-zimomopodamot-vogikirukup.pdfIn PDF document text
    • https://ririsibonegibo.weebly.com/uploads/1/3/4/5/134596323/1770545.pdfIn PDF document text
    • https://bekajujoxofutit.weebly.com/uploads/1/3/1/4/131406668/xisagosome.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/fdad85b4-bdf7-46dc-947a-a8d54e6ffbc5/walmart_pharmacy_covid_vaccine_houston.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9d902648-2b61-4a73-a34b-45ad5e10787c/rimidawenigezaxamola.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6da01d69-e8b4-41e2-a23c-e8ad351f92ed/jedadulawikope.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/04996813-25c5-455b-86e5-8945df038749/16952784491.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/59243268-9140-4162-8e49-98679f54f6f3/the_time_travelers_wife_full_movie_download_in_hindi_filmywap.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6cce34f9-a823-4650-b9f6-e4488360d376/fuzedotekowilev.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b8e0ed40-e1d4-401b-82e5-2cc6f300a4e8/breadman_bread_machine_manual_tr2200c.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/670755a8-36bb-4364-9984-b7e0155e3e5f/livabugowoxutanu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/eaad528d-c492-4315-953a-3fced55e8499/63750221928.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/691b4dac-184f-4f2b-b931-7b8d22a1b796/can_you_hotspot_with_consumer_cellular.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/44715882-9087-4493-8c3f-cbe8bcf0dcfb/vixas.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0f236766-26a2-40cc-949b-3bf68d9fe7c8/beginner_guitar_chords_tabs.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_off0000d8af.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD8AF 5368 bytes
SHA-256: 985bb78abcb8b97c0cfe5b38f432f7be2a0f04523ab006ed86d5902a8a11812c
font_01_sfnt_off0000eb16.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB16 10484 bytes
SHA-256: b207830339b576599829dee019e0d3371edee247d634aaae0575cf82d7b97868

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