Malicious PDF — malware analysis report

Static analysis result for SHA-256 3549f813ec9b274f…

MALICIOUS

PDF

40.8 KB Created: 2020-08-22 18:53:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8d8a839c3f984561f028ef941eb7fd3f SHA-1: d7fac7522d16c54f10d1aa9fc6a52427e0193ec1 SHA-256: 3549f813ec9b274f3eecaf08dae0baa5b9d2a5b8312c8b5b678c1d0dff7454c7
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to external resources. One critical heuristic identified a link to known malicious redirector infrastructure, specifically 'https://ttraff.ru/pify?keyword=after+party+netflix+parents+guide'. Another critical heuristic flagged the document as a PDF link farm, with numerous links to shopify.com domains, likely for SEO manipulation or to host further malicious content. The document body contains garbled text but includes the lure phrase 'after party netflix parents guide', suggesting a social engineering pretext.

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.ru/pify?keyword=after+party+netflix+parents+guide
    • http://files.alexanderecology.com/uploads/1/3/1/4/131438563/lokegikosexiras.pdf
    • http://fuwizoz.theclayloft.co.uk/uploads/1/3/0/9/130969204/sawigasunawokaf-lirofivemun.pdf
    • https://cdn.shopify.com/s/files/1/0429/2270/5063/files/gigot.pdf
    • https://cdn.shopify.com/s/files/1/0431/5689/7947/files/korepatebejoxoxodajedi.pdf
    • https://cdn.shopify.com/s/files/1/0428/6126/5062/files/cbse_literature_reader_class_9.pdf
    • https://cdn.shopify.com/s/files/1/0433/1575/7214/files/printable_baby_bingo_blank_template.pdf
    • https://cdn.shopify.com/s/files/1/0433/4557/6088/files/24929620581.pdf
    • https://cdn.shopify.com/s/files/1/0446/5822/9411/files/tar_gz_unzip.pdf
    • https://cdn.shopify.com/s/files/1/0440/4012/6629/files/34949120554.pdf
    • https://cdn.shopify.com/s/files/1/0427/7246/3772/files/bibiguraw.pdf
    • https://cdn.shopify.com/s/files/1/0430/5063/1319/files/topographical_anatomy_and_operative_surgery_textbook_for_english_speaking.pdf
    • https://cdn.shopify.com/s/files/1/0429/7188/9815/files/71510388024.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_off00006174.bin
bafd69a8ffc1398118e9e44219c91a647c72ad187efe17d1b807af77f925447e
pdf-font-stream PDF embedded font (sfnt) at offset 0x6174 5368 bytes
font_01_sfnt_off000073cf.bin
b782e96748fcf1f43072aa6f0c5e6aec5e576f78aa2ed169a2c76cc6a08f2248
pdf-font-stream PDF embedded font (sfnt) at offset 0x73CF 10164 bytes