Malicious PDF — malware analysis report

Static analysis result for SHA-256 f7f8be9dd702c2e7…

MALICIOUS

PDF

36.1 KB Created: 2020-07-10 01:35:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2020-09-04
MD5: ce44751ac30682c83a296872f6b99e21 SHA-1: 56de260c901f1d7e24dbc384b45c6c75a2466ca3 SHA-256: f7f8be9dd702c2e7a5c43ff8f6a01bf194965f3e4a7dbd3a3c25d792936a5679
194 Risk Score

Malware Insights

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

The PDF contains numerous links, including one to a redirector at 'ttraff.com', which is flagged as malicious. The document body and embedded links suggest a lure related to 'lspdfr how to use police radio', likely intended to trick users into downloading further malicious content from the linked SEO farms. The ML classifier strongly indicates maliciousness.

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.com/wb?keyword=lspdfr%20how%20to%20use%20police%20radio In PDF document text
    • http://files.dreamleadershipconsulting.com/uploads/1/3/1/0/131070527/jaros.pdfIn PDF document text
    • http://files.christiestimber.com/uploads/1/3/2/3/132302815/a80bec9c772bc.pdfIn PDF document text
    • http://files.paulsfranchiseleague.com/uploads/1/3/1/4/131438249/kabuvoxije_kuvorenuzixuw_raxejusub.pdfIn PDF document text
    • http://files.forspaciousskies.net/uploads/1/3/0/7/130738830/489db4fb2a5ad.pdfIn PDF document text
    • http://files.msubsm.com/uploads/1/3/1/3/131384156/bb6d09234.pdfIn PDF document text
    • http://files.nataliemcgreal.com/uploads/1/3/2/8/132814182/lajakos_dunabir.pdfIn PDF document text
    • http://files.condzellasfarm.com/uploads/1/3/0/9/130969555/97c8dd5b0b0479.pdfIn PDF document text
    • http://files.solidstatecircus.com.au/uploads/1/3/1/4/131437880/gitiwevele.pdfIn PDF document text
    • https://www.albo1125.comIn PDF document text
    • https://github.com/Albo1125/PoliceSIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://podinerexine.files.wordpress.com/2020/07/dukurukawexajuteb.pdfIn PDF document text
    • https://subezokebiw.files.wordpress.com/2020/06/zakotixadarudetol.pdfIn PDF document text
    • https://xagatefiwumu.files.wordpress.com/2020/06/12883622664.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/68769425665.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/65621046881.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/96328102714.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/51031200676.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/tifomev.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/55742160690.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/51025654711.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_off00004fb6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4FB6 5052 bytes
SHA-256: 65f769aaa36cdb1e817abc375bb389a6ed8be31071a9fea6b2dacf71a57d472a
font_01_sfnt_off0000610d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x610D 10060 bytes
SHA-256: c07266d40de17690e00aadb9286bbfb8c21962ae3a388c9404c644d2bbacb9cf

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