Malicious PDF — malware analysis report

Static analysis result for SHA-256 0b34cdee3d2b4114…

MALICIOUS

PDF

38.5 KB Created: 2020-08-18 21:11:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: fb9008c663f1fe3e50d70c0f1e0b64d4 SHA-1: 197eeaf31edb283d1f806c659f2a4503783ffe74 SHA-256: 0b34cdee3d2b4114625f69c3d90e97b982178f0edcb9e64e4049fd577b0d201f
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, including one pointing to a known malicious redirector (https://ttraff.ru/pify?keyword=darling+harbour+map+guide). The document body, though obfuscated, suggests a lure related to a 'map guide'. The presence of a link farm and a malicious redirector indicates an attempt to drive traffic to malicious infrastructure, likely for phishing or malware delivery. The ML classifier strongly supports the malicious verdict.

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=darling+harbour+map+guide In PDF document text
    • http://mubek.binhamvillagehall.co.uk/uploads/1/3/2/7/132710714/peferixoxiludij_tubakufadaka_posavosemodeso.pdfIn PDF document text
    • http://files.treeofhopecounselingrochester.com/uploads/1/3/1/3/131383698/mibovo.pdfIn PDF document text
    • http://wewom.oakroaster.com/uploads/1/3/0/9/130969754/karasavobeves.pdfIn PDF document text
    • http://files.bethinkcreate.com/uploads/1/3/2/7/132740218/70bd1ff781.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/1/0428/3147/8950/files/ropavaka.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7560/9510/files/zigogixepupewigulunumuxaf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6482/8838/files/42605800099.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6480/0918/files/mutijumox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1814/8261/files/42516445513.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/6055/7984/files/zebidamiv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/8743/3623/files/active_listening_exercises_for_couples.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9703/0817/files/birujat.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1348/8292/files/44382289305.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4731/3827/files/xupazelofodidunevevug.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7448/6421/files/figawuvoserifovona.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_off000058a6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x58A6 5332 bytes
SHA-256: 4d5f46240eac6d2a9bed3131dc73a927a7209c942bcc1534725adc4b1f9ffb6e
font_01_sfnt_off00006a91.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6A91 10084 bytes
SHA-256: 297f42afc1c687b42c635d4e85eda678c72bb6f086ec1b7006bcfb7c8913705c

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