Malicious PDF — malware analysis report

Static analysis result for SHA-256 8cb68368246543e1…

MALICIOUS

PDF

42.5 KB Created: 2020-08-26 08:06:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 56dd61e4fefea64be305a39783d2b41e SHA-1: 2110987a6c791e7a5c26f185af910fa89d0983ad SHA-256: 8cb68368246543e15833297a2c71c429b13cd7d9b62b944fb1366baecca2b67b
120 Risk Score

Malware Insights

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

The PDF file was identified as malicious due to a critical heuristic firing for a PDF redirector link pointing to 'https://ttraff.cc/pify?keyword=rat+breeders+los+angeles'. Additionally, another critical heuristic detected a PDF link farm with numerous external links, many hosted on cdn.shopify.com. The document body, though heavily obfuscated, also contains the URL 'https://ttraff.cc/pify?keyword=rat+breeders+los+angeles', suggesting a phishing or malware distribution attempt.

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=rat+breeders+los+angeles
    • http://files.brentcue.com/uploads/1/3/1/4/131406800/pagemositi-nufujiko.pdf
    • http://disotuw.lawrencelionsbasketball.com/uploads/1/3/0/7/130739173/6003660.pdf
    • http://karedik.resilientpeople.ca/uploads/1/3/1/4/131454215/fafab.pdf
    • http://wusos.ashlynnsboutique.com/uploads/1/3/1/4/131437594/tuganixesifatur.pdf
    • https://cdn.shopify.com/s/files/1/0450/8103/4917/files/rifuzorabudezefirumidi.pdf
    • https://cdn.shopify.com/s/files/1/0435/7311/7091/files/the_communist_manifesto_sparknotes.pdf
    • https://cdn.shopify.com/s/files/1/0432/5641/4363/files/12537841243.pdf
    • https://cdn.shopify.com/s/files/1/0429/7680/5018/files/36421673733.pdf
    • https://cdn.shopify.com/s/files/1/0428/8158/1209/files/tofejijuvuzewefatokagibu.pdf
    • https://cdn.shopify.com/s/files/1/0440/5365/9798/files/46233779714.pdf
    • https://cdn.shopify.com/s/files/1/0432/9802/9733/files/the_bridge_documentary.pdf
    • https://cdn.shopify.com/s/files/1/0438/4669/7125/files/1208337370.pdf
    • https://cdn.shopify.com/s/files/1/0430/9565/4564/files/gpsc_result_2018_answer_key.pdf
    • https://cdn.shopify.com/s/files/1/0429/3269/9292/files/welogumofelufok.pdf
    • https://cdn.shopify.com/s/files/1/0431/9540/0356/files/niwafo.pdf
    • https://cdn.shopify.com/s/files/1/0428/9685/1111/files/da_31_fillable.pdf
    • https://cdn.shopify.com/s/files/1/0436/3000/2336/files/87552736448.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_off000068de.bin
d91508251ac200d4b8e085f63384806b160618d2720fdb532a588c87a506dd28		 pdf-font-stream PDF embedded font (sfnt) at offset 0x68DE 5140 bytes
font_01_sfnt_off00007a66.bin
50d93421e14a0dfab554742efdfe11743a4a6e812de27b1718847c3b5dcca1b3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7A66 10244 bytes

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