Malicious PDF — malware analysis report

Static analysis result for SHA-256 fae682aef7f5c438…

MALICIOUS

PDF

44.7 KB Created: 2020-08-01 22:45:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 727c1d097cc4e8fd0c7fdd572b19a90e SHA-1: 888c95065fbc5054958758029c3440b7245419b8 SHA-256: fae682aef7f5c438f3eb67e6c5112b022458eae0f72cf9311d9682b9555769c2
120 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with a critical heuristic firing indicating a malicious redirector. The document body, though heavily obfuscated, contains text related to 'free prepper books pdf' and includes the primary malicious URL. This suggests a social engineering tactic to entice users to click the link, which then redirects to potentially harmful content.

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=free+prepper+books+pdf
    • http://files.amandawhitesel.com/uploads/1/3/1/4/131407152/lovon.pdf
    • http://files.andywilsonmusic.net/uploads/1/3/1/4/131452880/givovejikasonapi.pdf
    • http://files.landladyprosvcs.com/uploads/1/3/1/3/131383319/340e79437.pdf
    • http://files.lifestylefaceandbodycare.co.uk/uploads/1/3/1/3/131379844/mufopinebafexej.pdf
    • https://cdn.shopify.com/s/files/1/0431/5299/8556/files/59149549347.pdf
    • https://cdn.shopify.com/s/files/1/0430/3768/7962/files/vusije.pdf
    • https://cdn.shopify.com/s/files/1/0432/8197/3416/files/neopets_food_club.pdf
    • https://cdn.shopify.com/s/files/1/0432/5539/8563/files/bolerizazij.pdf
    • https://cdn.shopify.com/s/files/1/0431/7783/6702/files/gclear_hex_code.pdf
    • https://cdn.shopify.com/s/files/1/0427/4946/0636/files/51645168312.pdf
    • https://cdn.shopify.com/s/files/1/0429/8915/8554/files/gaxoj.pdf
    • https://cdn.shopify.com/s/files/1/0434/9971/6770/files/xemagovekerazemalogizu.pdf
    • https://cdn.shopify.com/s/files/1/0432/8275/9836/files/zuxuxijogumaxogewenizop.pdf
    • https://cdn.shopify.com/s/files/1/0433/6379/5096/files/fofunazuzute.pdf
    • https://cdn.shopify.com/s/files/1/0429/3358/4028/files/96348710763.pdf
    • https://cdn.shopify.com/s/files/1/0430/2707/1127/files/budowufixeroxap.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_off0000708d.bin
87a062c4b957a7b56deae1a5af068c5ff7e58849b86f1d72cec430d0b06f0a44		 pdf-font-stream PDF embedded font (sfnt) at offset 0x708D 4952 bytes
font_01_sfnt_off00008172.bin
cad7bc03545d687c3ee2e2141cc693d73eeeff4b2dc9b4bd956634fda3b745a6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8172 10580 bytes

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