Malicious PDF — malware analysis report

Static analysis result for SHA-256 4e753473740be19a…

MALICIOUS

PDF

49.8 KB Created: 2020-08-22 02:53:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 54c1fe60d8accc5eb0a3f1a1989698bc SHA-1: 396b9d69c2b68c614f651c44508344ac9aea0a71 SHA-256: 4e753473740be19a40a2970153af49e34d30ba554b638ed6673cf304bc40525e
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1200 Hardware Addends T1059.001 PowerShell

The PDF file contains a significant number of embedded links, with one heuristic specifically identifying it as a 'PDF_SEO_LINK_FARM'. The primary malicious URL identified is 'https://ttraff.cc/pify?keyword=automatic+vs+manual+car+mileage', which is flagged as a malicious redirector. The document body itself is heavily obfuscated and contains a mix of seemingly unrelated text and the malicious URL, suggesting a lure to a malicious site. No scripts were extracted from this sample.

Heuristics 3

  • 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.
  • 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.cc/pify?keyword=automatic+vs+manual+car+mileage
    • http://files.backpagesportsradio.com/uploads/1/3/0/8/130873708/rodevepamupip-nafoburagawekol-zibobo-regozezugewi.pdf
    • https://cdn.shopify.com/s/files/1/0434/8372/5990/files/halt_and_catch_fire_imdb.pdf
    • https://cdn.shopify.com/s/files/1/0438/1868/0482/files/joluwitikovesuviralaru.pdf
    • https://cdn.shopify.com/s/files/1/0435/4582/1333/files/birthday_wishes_gif_with_name.pdf
    • https://cdn.shopify.com/s/files/1/0429/9204/2137/files/mowupar.pdf
    • https://cdn.shopify.com/s/files/1/0431/1161/2572/files/simple_past_perfect_tense_exercises.pdf
    • https://cdn.shopify.com/s/files/1/0431/9304/1053/files/niwebozidakugob.pdf
    • https://cdn.shopify.com/s/files/1/0437/3151/7605/files/algebra_and_trigonometry_sullivan_6th_edition.pdf
    • https://cdn.shopify.com/s/files/1/0434/7248/6564/files/algorithm_design_foundations_analysis_and_internet_examples_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0433/0507/4838/files/mumakuxo.pdf
    • https://cdn.shopify.com/s/files/1/0431/8311/2341/files/serofugulix.pdf
    • https://cdn.shopify.com/s/files/1/0438/3942/2626/files/darigikalukagutobes.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000069c8.bin
95e7471d12b971464ac660432553f2bb6379a039cb88d6bdee8a3062eebbb300		 pdf-font-stream PDF embedded font (sfnt) at offset 0x69C8 5048 bytes
font_01_sfnt_off00007adb.bin
f8dcc56d0118eb3fd1cff2fc579056002a044c3e801baa2fd096e7e8466c95aa		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7ADB 15340 bytes
font_02_sfnt_off0000aa6d.bin
ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3		 pdf-font-stream PDF embedded font (sfnt) at offset 0xAA6D 4324 bytes

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