Malicious PDF — malware analysis report

Static analysis result for SHA-256 aae6b089565f25bd…

MALICIOUS

PDF

37.0 KB Created: 2020-10-30 06:14:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: b6b7ad5d0bc81c6a6ae829dd0444f50d SHA-1: 1f4764ae21a01f64e461d66eb360be411d32a1ae SHA-256: aae6b089565f25bd76e0b4711be00b840cf22b0ddd6667f0a7f2b80f465c1690
154 Risk Score

Malware Insights

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

The PDF contains a link farm designed to mimic search results, directing users to download other PDFs. The primary malicious URL, 'https://gettraff.ru/pify?keyword=babaji+the+lightning+standing+still+in+hindi+pdf+free+download', is flagged as a malicious redirector. This suggests the document is part of a campaign to distribute malicious content or lead users to phishing sites.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • 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://gettraff.ru/pify?keyword=babaji+the+lightning+standing+still+in+hindi+pdf+free+download In PDF document text
    • https://cdn-cms.f-static.net/uploads/4370071/normal_5f90e7ed5c808.pdfIn PDF document text
    • https://jufopikigon.weebly.com/uploads/1/3/4/3/134309667/c580279ad651.pdfIn PDF document text
    • https://sonefuvik.weebly.com/uploads/1/3/4/3/134325549/sepofujugafo.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/leguvefu/aerodynamic_aviation.pdfIn PDF document text
    • https://s3.amazonaws.com/lezopobigeza/14140583293.pdfIn PDF document text
    • https://s3.amazonaws.com/tetazino/roxexit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0507/7555/6290/files/westin_palm_desert_golf_course.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0504/6901/1634/files/33155394857.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0266/9654/8530/files/huntington_state_beach_rv_camping.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0501/5791/2245/files/spring_awakening_playlist.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0478/0654/6079/files/jewunigowub.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c73c94b1-871d-401a-a72b-a1a62226c001/food_fantasy_team_up_guide.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_off00004dfd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4DFD 5660 bytes
SHA-256: 76f8cfb6b01a499e71f9c76dc2ff81a9636301cf938a5828da6f3c3e09b1118e
font_01_sfnt_off0000614f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x614F 10600 bytes
SHA-256: 95536d04bb70674b8c0f4d35e37927ec97297fdad3c340683283dc412247b661

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