Malicious PDF — malware analysis report

Static analysis result for SHA-256 faf7ea47ab9571c4…

MALICIOUS

PDF

58.4 KB Created: 2021-01-08 16:30:37 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-14
MD5: 6bc3a6a06957393c2024d9bdffe83d3f SHA-1: 89f21b815369a7e5c5afb3908c1a25c63b81d8f9 SHA-256: faf7ea47ab9571c441ba562ac8afabdfa1be63ffb8b5c49af7fe667081e6d6d7
212 Risk Score

Malware Insights

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

This PDF file contains a large number of embedded links, many of which point to potentially malicious redirectors or link farms. The heuristic firings indicate it is a malicious redirector and a link farm, with one URL specifically noted as malicious. The ML classifier also flagged it with high confidence. The document body, though heavily obfuscated, contains references to movie downloads, suggesting a lure to trick users into visiting these malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8255

Heuristics 4

  • 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.
  • 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.
  • 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://traffine.ru/aws?utm_term=badlapur+full+movie++filmywap In PDF document text
    • https://cdn.sqhk.co/lazujanaziri/E8hcgfd/34290585868.pdfIn PDF document text
    • https://cdn.sqhk.co/wavefekus/ggehem8/ghost_rider_fortnite_cup_date.pdfIn PDF document text
    • https://sosojisizavawov.weebly.com/uploads/1/3/1/4/131454692/kemenunem-xipomaginurulun-pitebinokut.pdfIn PDF document text
    • https://vutuwoti.weebly.com/uploads/1/3/4/7/134720014/1786128.pdfIn PDF document text
    • https://cdn.sqhk.co/tokarikadez/jc5SBtu/revamenuwuxovirerezivamo.pdfIn PDF document text
    • https://cdn.sqhk.co/javijaxim/Rvibjen/faller_amino_for_gravity_falls_season_3.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/70d557b7-5689-43f0-98ef-76e1a0f2ea4d/50827360514.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b69f9b41-d44f-4dfc-b83f-aa05923af0d8/97940243929.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7d835c8e-7dcb-416a-8501-4025bb5cd8eb/15622153500.pdfIn PDF document text
    • https://s3.amazonaws.com/timafatafej/gisijepudupen.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fe30fb6c-cb2a-4f8b-9367-75ae237d6113/hetalia_america_x_russia_fanfiction.pdfIn PDF document text
    • https://s3.amazonaws.com/felasorarabipis/addition_worksheets_for_kinder.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/278cf550-a7c7-4171-bb1d-e2e522ca0adc/45534372081.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1981c63a-4aa0-40eb-a001-4b07620a22ce/nivufuw.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/529f3a5d-fe43-4f30-965c-3b787b6b8514/92175724863.pdfIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c7cc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC7CC 5312 bytes
SHA-256: 7aa42ea09d64b68ae20049248f8a570be85758d102e53652df18cdf20a847802