Malicious PDF — malware analysis report

Static analysis result for SHA-256 815ce5e62601901d…

MALICIOUS

PDF

43.5 KB Created: 2020-07-13 08:57:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 2198613bdb0080f2dc90367a25efe40e SHA-1: 95db801f073a925ee614e957f8ee3d62df5fb9bc SHA-256: 815ce5e62601901dc1533cd35e022f9c67f2b687cecbbf8fb6fe396a955f5c42
154 Risk Score

Malware Insights

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

The PDF document was flagged by multiple critical heuristics for containing malicious redirector links and a large link farm. The ML classifier also strongly indicated maliciousness. The embedded URLs, particularly the one pointing to 'ttraff.com', suggest a redirection to potentially harmful content or phishing sites. No scripts were extracted, but the sheer volume of outbound links indicates a strong intent to manipulate traffic or distribute further payloads.

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://ttraff.com/pify?keyword=drinking+and+driving+psa+scripts
    • http://files.megcweeks.com/uploads/1/3/0/8/130874516/f7c94d11.pdf
    • http://files.newparanormalinvestigators.com/uploads/1/3/2/7/132712120/sabaxorekarozot.pdf
    • http://files.lightoftheworldcoaching.com/uploads/1/3/0/7/130776344/paremulapove.pdf
    • http://files.woodsilks.com/uploads/1/3/2/7/132741130/gajiti_nasevoluvanipe.pdf
    • https://lideriv.files.wordpress.com/2020/06/59993749700.pdf
    • https://bejibabatit.files.wordpress.com/2020/07/88603700699.pdf
    • https://befalemo.files.wordpress.com/2020/07/27943159332.pdf
    • https://luwaliwev220981188.files.wordpress.com/2020/07/romuregajipukuwixelufada.pdf
    • https://rekezigojiw.files.wordpress.com/2020/07/44810245384.pdf
    • https://taxoloxud.files.wordpress.com/2020/06/22069058575.pdf
    • https://cdn.shopify.com/s/files/1/0429/4891/9450/files/likelodileguk.pdf
    • https://cdn.shopify.com/s/files/1/0430/6249/3345/files/wijaj.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/mapitawaluzosamorexub.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/80884551140.pdf
    • https://cdn.shopify.com/s/files/1/0432/3665/5259/files/fomewadazolopemo.pdf
    • https://cdn.shopify.com/s/files/1/0430/2356/4957/files/wekofawepatexapijusaxipo.pdf
    • https://cdn.shopify.com/s/files/1/0433/1916/5086/files/92371021594.pdf
    • https://cdn.shopify.com/s/files/1/0433/4583/8232/files/xifaboruvupopokugodelofol.pdf
    • https://cdn.shopify.com/s/files/1/0433/0071/6694/files/rejetevoj.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006cbb.bin
9183b69b86fa467b177547ad327f5f9e395053aa8dabe0aece7895d476eb9dd1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6CBB 4892 bytes
font_01_sfnt_off00007d67.bin
02b3aad8b5dcecd0b88cf7445c8d3a21db1ed1a6292cf7856b24417c5118917c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7D67 10240 bytes

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