Malicious PDF — malware analysis report

Static analysis result for SHA-256 5044f37924c96e26…

MALICIOUS

PDF

40.7 KB Created: 2020-10-15 16:15:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: 3ec9fd3a024593ca63e1ea9cb1a4aeb0 SHA-1: febac8b8e2fa52c7afde1614fb1a0cb44e504fc0 SHA-256: 5044f37924c96e2616a340255a7859ee25ce621efa66e61360eaf6eea321c7b9
192 Risk Score

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.
  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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.club/pify?keyword=hp+photosmart+2600+manual In PDF document text
    • https://site-1037835.mozfiles.com/files/1037835/47142404163.pdfIn PDF document text
    • https://site-1043093.mozfiles.com/files/1043093/braven_speaker_stryde_360_manual.pdfIn PDF document text
    • https://dimaxafazeza.weebly.com/uploads/1/3/1/4/131453031/zakeme.pdfIn PDF document text
    • https://vevejeda.weebly.com/uploads/1/3/0/7/130776099/f3bb5cc2ac1ef9.pdfIn PDF document text
    • https://gexirirexov.weebly.com/uploads/1/3/0/8/130874239/tijuwerabis.pdfIn PDF document text
    • https://pigogokeda.weebly.com/uploads/1/3/1/8/131857695/5677351.pdfIn PDF document text
    • https://keniwuki.weebly.com/uploads/1/3/1/4/131483234/2c029f.pdfIn PDF document text
    • https://kabudededawizo.weebly.com/uploads/1/3/1/3/131383409/sawizar-tubaxave-zopulenog.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/7a146417-109c-4c63-93c6-a1c645b957d6/65938314347.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5d8eceea-72f9-41b1-9fe5-05586b307aa1/33550065450.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/73fa0b1e-5037-4dcc-b939-07cb62d30e00/90431301300.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/14356c9e-bb37-4dd9-bae7-9687d0b0c010/pimuvuwufu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d3334cb9-6909-471f-a7f6-2da43a9989b0/99161736456.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a7d586f7-a1b4-444f-a38b-02fcd7c7e8fd/lenuxazuboditif.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0498/2512/0411/files/mendels_second_law_of_inheritance.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0949/9558/files/51123184125.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6528/6549/files/zitigugewufelafenav.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0493/2186/9471/files/the_last_song_full_book.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0501/0741/6741/files/download_hopeless_land_fight_mod_apk.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000059fc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x59FC 5448 bytes
SHA-256: dbfba288c6b2731a91533ce07303a7cb2bf8237638e8791218c61bb506a51bf7
font_01_sfnt_off00006c51.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C51 12968 bytes
SHA-256: 3d938cec533ba88f2fd854a44341749a291a4504d1679239d874a315bc34ff48

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