Malicious PDF — malware analysis report

Static analysis result for SHA-256 f304d9c01eaa91ce…

MALICIOUS

PDF

44.7 KB Created: 2020-08-14 18:52:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 90ac0236a54b31878d8a14e0d2e4dc39 SHA-1: 481a167035fcbf34651245f1083709c0d4939604 SHA-256: f304d9c01eaa91ce2cd1f633136108a720823305f083e5b9e59aa81b4f168de3
202 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link T1059.003 Windows Command Shell

The PDF contains a link farm and a malicious redirector URL, indicating an attempt to drive traffic to potentially harmful sites. The presence of a "video song app pc" lure in the document body, combined with the "SE_LOLBIN_RUN_COMMAND" heuristic, suggests the document is designed to exploit user interest for malicious purposes, likely leading to further compromise. The redirector URL `https://ttraff.cc/pify?keyword=video+song++app+pc` is a primary indicator of this malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • LOLBin token sequence in document text high SE_LOLBIN_RUN_COMMAND
    Extracted document text contains a Windows script/execution tool name (PowerShell, mshta, cmd, rundll32, regsvr32, …) within 220 characters of a dangerous flag, command verb, or URL. This is a visible 'run this' instruction in HTML/PDF/RTF lure bodies, or — in macro-laden Office files — the macro's own string-pool entries appearing adjacent in extracted text.
  • SEO-redirector lure link (multi-word utm_term) low PDF_SEO_UTM_REDIRECTOR_LINK
    PDF contains a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the search-keyword gateway used by the 'free document download' phishing family. Surfaced as an IOC; on its own this is a low-confidence signal.
  • 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.cc/pify?keyword=video+song++app+pc In PDF document text
    • http://files.jordanpriceart.co.uk/uploads/1/3/1/4/131454216/wozituvazifoxeb.pdfIn PDF document text
    • http://files.octexan.com/uploads/1/3/0/7/130738903/f05cdcfb0b3ee5.pdfIn PDF document text
    • http://suzir.nakitahogans.com/uploads/1/3/1/4/131454024/ripuridefipofoj-foken.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7867/1779/files/88977512862.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8649/5397/files/14586018681.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1458/6521/files/mamabaxetajoteru.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0489/5143/files/aceite_esencial_de_mandarina.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/3140/2395/files/english_classroom_language.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4758/2870/files/69407289691.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7049/6661/files/noxigawazoteponirad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3110/1603/files/5935741128.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6283/4853/files/catia_v6_assembly_tutorial.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0589/5075/files/alleluia_jubilate.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/sefumiwizekoreletete.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_off00007104.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7104 5080 bytes
SHA-256: 4f8762b28e33baff153561e9f49240727ad74d20036a15f04d88a0a1327d20f6
font_01_sfnt_off00008262.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8262 10388 bytes
SHA-256: ff176e8f84ede092ecba25793084da11edd0f4038b3f0403f6301bf6e51f63a4