Malicious PDF — malware analysis report

Static analysis result for SHA-256 b01bfcdb4a149cef…

MALICIOUS

PDF

43.3 KB Created: 2020-08-01 01:33:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4cd066a6c6a3ad9c1b0c1d0c8d310494 SHA-1: 55d4878b79e00d3cc4b3f98e43b7aaddca3ffa13 SHA-256: b01bfcdb4a149cef17348847029b60c79cd932472be7cdcd17f76a98c86d8903
120 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, specifically pointing to a URL designed to lure users with a movie download theme. The document body, though heavily obfuscated, contains the same URL and references to movie titles, reinforcing the lure. The presence of a large number of external PDF links, many hosted on Shopify, suggests a link farm intended to distribute the malicious payload or redirect traffic.

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=transformers+age+of+extinction+imax+download
    • http://files.gotcertifications.com/uploads/1/3/1/4/131483009/8967167.pdf
    • http://files.mrsararadian.com/uploads/1/3/1/4/131453676/725d0ad5d8b20d.pdf
    • http://files.divorcecoachingandconsulting.com/uploads/1/3/2/3/132303035/nonetepizo-jalak.pdf
    • https://cdn.shopify.com/s/files/1/0429/4138/2812/files/ronotikobap.pdf
    • https://cdn.shopify.com/s/files/1/0432/1994/3579/files/97740184974.pdf
    • https://cdn.shopify.com/s/files/1/0434/1514/2567/files/osrs_mining_calc.pdf
    • https://cdn.shopify.com/s/files/1/0427/5588/3175/files/woxatifosovaravexewedij.pdf
    • https://cdn.shopify.com/s/files/1/0431/6879/2733/files/zilijaxalowisitamojak.pdf
    • https://cdn.shopify.com/s/files/1/0430/7258/5888/files/medusoba.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/pujofupokutesigitugut.pdf
    • https://cdn.shopify.com/s/files/1/0428/0510/0711/files/pojij.pdf
    • https://cdn.shopify.com/s/files/1/0428/5644/8167/files/giwijekefoxorojaguba.pdf
    • https://cdn.shopify.com/s/files/1/0438/4948/2400/files/sudotora.pdf
    • https://cdn.shopify.com/s/files/1/0435/4883/6004/files/91040660520.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_off0000680c.bin
7f22d830d24596d0cf3d067ec897ce38686a162c4d027183ebce5f9275b43143		 pdf-font-stream PDF embedded font (sfnt) at offset 0x680C 5448 bytes
font_01_sfnt_off00007a95.bin
152f7a74f87538cdf6e5238848c78bfc92697ef8797d407d9f3984ac68ceefd4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7A95 11056 bytes

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