Malicious PDF — malware analysis report

Static analysis result for SHA-256 80bfdc4297ba3185…

MALICIOUS

PDF

42.1 KB Created: 2020-08-22 06:43:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5f40a4e6147375e32bbb22b0eefb8aaa SHA-1: a6554f31ade5426c92ba9e59dd393479fd0b0207 SHA-256: 80bfdc4297ba3185c6677f2480db474bed4bd8743bca0295fea4499570ed01eb
120 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, with a critical heuristic identifying it as a link farm. One of the primary links directs to a known malicious redirector service, 'ttraff.ru', which is likely used to obscure the ultimate malicious destination. The document body, though heavily obfuscated, also contains the same URL, reinforcing its role in the attack chain. The presence of numerous external links, many hosted on Shopify, suggests an attempt to distribute further malicious content or phishing pages.

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=chablis+vintage+report+2018
    • http://files.makeupbybb.com/uploads/1/3/1/3/131381712/zinomezumajiwet_xamaminiwoxesus_radan_gekero.pdf
    • http://zorim.bereanbiblechurchfm.com/uploads/1/3/1/1/131163599/bc801b3793572d7.pdf
    • http://files.positivetransitions.co.uk/uploads/1/3/0/7/130776714/902aa.pdf
    • http://files.stephengreiman.com/uploads/1/3/0/9/130968947/papewofe.pdf
    • https://cdn.shopify.com/s/files/1/0449/8885/8536/files/hq_youtube_to_mp3.pdf
    • https://cdn.shopify.com/s/files/1/0428/9665/4489/files/nafogigekugekagovaxi.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/dokole.pdf
    • https://cdn.shopify.com/s/files/1/0434/5787/2039/files/twi_cswip_3._2_questions_and_answers.pdf
    • https://cdn.shopify.com/s/files/1/0434/2035/2677/files/miller_and_levine_biology_chapter_7.pdf
    • https://cdn.shopify.com/s/files/1/0440/7033/8725/files/dedozukuvun.pdf
    • https://cdn.shopify.com/s/files/1/0432/5448/1054/files/90011245752.pdf
    • https://cdn.shopify.com/s/files/1/0450/7539/8821/files/enhanced_ui_civ_5.pdf
    • https://cdn.shopify.com/s/files/1/0428/9291/8937/files/advertising_and_public_relations_book.pdf
    • https://cdn.shopify.com/s/files/1/0431/3730/2679/files/gezanidonirufataluwi.pdf
    • https://cdn.shopify.com/s/files/1/0431/1112/1063/files/board_games_to_learn_english.pdf
    • https://cdn.shopify.com/s/files/1/0444/2229/9815/files/tweed_cephalometric_analysis.pdf
    • https://cdn.shopify.com/s/files/1/0434/9824/2214/files/31738751396.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_off000065f2.bin
d4484fce1d66bff883f35f03405074a9b4d52801d2cf7038a5e8f6c60cf21fc8
pdf-font-stream PDF embedded font (sfnt) at offset 0x65F2 5708 bytes
font_01_sfnt_off0000795a.bin
7748b7e93cc624157e3e6edcb2fd9ee2e16264f43266f27c11dc68eadae420dd
pdf-font-stream PDF embedded font (sfnt) at offset 0x795A 10028 bytes