Malicious PDF — malware analysis report

Static analysis result for SHA-256 7cfa00c7f02ae72d…

MALICIOUS

PDF

50.6 KB Created: 2020-10-09 05:41:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-13
MD5: 3c5bab8407ef6ce6e7ba604a298d0b5a SHA-1: c193adaab87b8d92ef8c1fb856de6c480b9c3539 SHA-256: 7cfa00c7f02ae72dfb38b6af6fca0fdf9ae151485a6cb78bede847b62cf7427b
184 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many pointing to disposable domains, suggesting a link farm designed to distribute malicious content or phish users. The primary link, 'https://ttraff.link/pify?keyword=mini+dv+camcorder+to+computer', appears to be a redirector, likely leading to a malicious site. No scripts were extracted, but the PDF structure itself is indicative of malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • 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.
  • 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://ttraff.link/pify?keyword=mini+dv+camcorder+to+computer In PDF document text
    • http://dimixegag.artsoffmain.ca/uploads/1/3/0/7/130740112/bevedu-renonore.pdfIn PDF document text
    • http://xivovum.triplecrownlacrosse.com/uploads/1/3/1/4/131453558/detax.pdfIn PDF document text
    • http://files.hancockcountyfoodpantry.org/uploads/1/3/2/6/132695586/9169329.pdfIn PDF document text
    • http://files.wellife360.org/uploads/1/3/1/4/131454349/3104073.pdfIn PDF document text
    • http://files.acyouthsoccer.net/uploads/1/3/1/6/131637385/pokerex-fuguxukekixen-piruvubud-zifomilewot.pdfIn PDF document text
    • http://mazonedi.emiliabunea.com/uploads/1/3/1/4/131453718/vagesimifuwi.pdfIn PDF document text
    • http://files.verticalgunracks.com/uploads/1/3/1/3/131378952/19562.pdfIn PDF document text
    • http://jatisiso.claysmithcreativesltd.com/uploads/1/3/1/4/131405965/nilarizebevubopibi.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
    • https://uploads.strikinglycdn.com/files/0eac551d-b7aa-4a3f-99c4-f51b6a23014f/vadofukijisiwekebuboduves.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4287dc9d-cd9e-422d-905c-608e2222fa89/70615945062.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9e9f80e0-bf39-4361-b45b-bed100909ccc/96279175391.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4eaa04bc-8ae5-4dae-aa22-02c5755d512f/mozefowafutibodugenon.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8778b474-67bb-4b84-90ae-b3a44b497652/sogusitanaja.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2303/1720/files/rca_tablet_reviews_7_inch.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0477/4939/8684/files/the_beck_diet_solution_reviews.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7680/3990/files/capo_chord_conversion_chart.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9465/3594/files/jexoworupumodorifed.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0496/1258/7159/files/dedepe.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_off00007b01.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7B01 4956 bytes
SHA-256: dcce6c4c963b66f23fb327839568328bef5d7109c86380a9839a4d3671757e89
font_01_sfnt_off00008bc2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8BC2 10288 bytes
SHA-256: 2b0cfe4495325946d0bbfdc67f535a82cb816532098beee4a2cc01c5e6e769ea
font_02_sfnt_off0000aef0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAEF0 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3