Malicious PDF — malware analysis report

Static analysis result for SHA-256 b14d6947bfc9c927…

MALICIOUS

PDF

49.8 KB Created: 2020-10-28 19:15:59 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-02
MD5: b93004b67420a3fe9c8fe24c3d0adc4d SHA-1: 90f9acf1d77a4f9c31c68a1bdf73ea1e16347ba4 SHA-256: b14d6947bfc9c92796d925501a41be57c27d50a572b88b7a86f3e8daca93f4ba
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm and routes users through malicious redirector infrastructure. Specific URLs and indicators for this sample are listed in the indicators section.

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/strik?keyword=superman+vs+thanos+fanfiction In PDF document text
    • https://mapuxotegudu.weebly.com/uploads/1/3/4/3/134356271/kesugudoxiwi-zafavidofaraza-gazox-lugedadataweje.pdfIn PDF document text
    • https://joverukaded.weebly.com/uploads/1/3/4/4/134433057/jelutuwib-vafuwipofuze-dobukuwer-bovumipinere.pdfIn PDF document text
    • https://siregudak.weebly.com/uploads/1/3/0/7/130738759/zisiwedufilawike.pdfIn PDF document text
    • https://lafapimiwegu.weebly.com/uploads/1/3/4/0/134041150/1bb7452d3d1720b.pdfIn PDF document text
    • https://bopifodefow.weebly.com/uploads/1/3/4/3/134383970/b2cbade7b.pdfIn PDF document text
    • https://lifotuvuzaraxur.weebly.com/uploads/1/3/0/7/130775275/fitamalekalez_rikopamupeko_tidagijulud_sunabi.pdfIn PDF document text
    • https://sokuvotaboraj.weebly.com/uploads/1/3/0/7/130776263/9847291.pdfIn PDF document text
    • https://xuzowezawejinat.weebly.com/uploads/1/3/4/3/134378303/sozawuxob.pdfIn PDF document text
    • https://kakawugob.weebly.com/uploads/1/3/0/9/130969990/225f86e.pdfIn PDF document text
    • https://nuvefiwepopowu.weebly.com/uploads/1/3/4/5/134502743/rosifo-forufe.pdfIn PDF document text
    • https://bubixoduxufito.weebly.com/uploads/1/3/1/0/131070588/8476882.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://cdn.shopify.com/s/files/1/0429/5294/9913/files/maine_mariners_2020-21_schedule.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0502/1473/1930/files/r_knitr_tutorial.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0484/6845/9670/files/59933384698.pdfIn PDF document text
    • https://s3.amazonaws.com/fasanag/50298657767.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0484/7121/2193/files/advantages_and_disadvantages_of_aid.pdfIn PDF document text
    • https://s3.amazonaws.com/kavitokolezub/88937134227.pdfIn PDF document text
    • https://s3.amazonaws.com/waxapoz/income_affidavit_format.pdfIn PDF document text
    • https://s3.amazonaws.com/fasanag/17383539411.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0497/5155/6260/files/fumabavamor.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000076f8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x76F8 5268 bytes
SHA-256: fe75f3fc8e66fa0cc180d3443ed81074c218c8e9d1ea821b634d5b34ba031d34
font_01_sfnt_off000088b2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x88B2 10312 bytes
SHA-256: 4a4a72a94888f2647bfb207cff8eae126c43bd7b5299acb0f626a02ac2a36dc0
font_02_sfnt_off0000abfa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xABFA 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3

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