Malicious PDF — malware analysis report

Static analysis result for SHA-256 3653d47b630049d9…

MALICIOUS

PDF

52.4 KB Created: 2020-08-22 15:55:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 865e166299a103fff319c6a561cb3011 SHA-1: ba9e7656bfdd992dc50298092692b46d62b2eebc SHA-256: 3653d47b630049d9a3246ea518d42594034ab2a544797b638980fbbd036dbd50
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a heuristic firing indicating it is a malicious redirector link, pointing to 'https://ttraff.ru/pify?keyword=whatsapp+status+er+apk+latest+version'. The document body also contains this URL and other links, suggesting a lure to download potentially malicious content. The presence of a large number of external PDF links further supports the 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.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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.ru/pify?keyword=whatsapp+status+er+apk+latest+version In PDF document text
    • http://mulov.frankysmusicproduction.com/uploads/1/3/0/7/130775951/7099508.pdfIn PDF document text
    • http://zisafeza.jakyoga.com/uploads/1/3/2/6/132696056/sajaxitar_putibex_mazibogobavufu_fudapasemixa.pdfIn PDF document text
    • http://natulo.elitetheatre.org/uploads/1/3/0/7/130776054/gogijogovosebox_makiso_xomulebobasago_guvonej.pdfIn PDF document text
    • http://files.tiered-educational-consulting.com/uploads/1/3/0/9/130969893/zurarozexanotijerax.pdfIn PDF document text
    • http://files.avianoreunion.com/uploads/1/3/0/9/130969965/6735838.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/1/0431/5555/4455/files/87286453759.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6060/9692/files/rabalelejoti.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5071/9642/files/7628215173.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8205/5842/files/kotafe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1522/4996/files/75915554990.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5842/9089/files/menuluwesizuvigepogojag.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4345/4102/files/varsity_blues_soundtrack.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0436/2906/files/ditidepajivixasavadiviv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6900/4190/files/setisidigonoxotukovituna.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7405/9424/files/65640420298.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2689/8344/files/tugabikovuvade.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004d47.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4D47 5044 bytes
SHA-256: 32dc4ff4d6ae0aaa995737fac573c9e8b66df981d67d9f3b7ac2d1f4fb803fbf
font_01_sfnt_off00005e74.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E74 15440 bytes
SHA-256: f29ba56b9864cf09455bd14231b1c50c2e2ede9a1497660a6b89d1b40ddc5df5
font_02_sfnt_off000089e9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x89E9 9584 bytes
SHA-256: 7fc0c286c2d72ed95d6c7d250b22f550ee40c874b712863452752f6a0a5d75f3
font_03_sfnt_off0000aadc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAADC 16944 bytes
SHA-256: 876f0980cc4a9cb5e9eb3de9f476441b298b9e6d317b2991ec208d456f07dbb3