Malicious PDF — malware analysis report

Static analysis result for SHA-256 fcfe45605fe82a65…

MALICIOUS

PDF

42.6 KB Created: 2020-08-20 03:45:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 53b33e61c8d97a3645fe0d8959b1acf2 SHA-1: 5639123fe26d1219f775db244e10eeabc6b34ea4 SHA-256: fcfe45605fe82a652406604df66bd20d4d6195edc97d1a00de5d78362c12ec59
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'ttraff.ru'. Additionally, it exhibits characteristics of a PDF link farm, with numerous links to external PDFs, many hosted on Shopify. The document body, though heavily obfuscated, contains the same malicious URL. The primary attack vector appears to be social engineering, luring users to click on the malicious link under the guise of a game guide, likely leading to further malicious activity.

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=laplace+m+skill+guide+assassin
    • http://jopaminiw.dealswithdessy.com/uploads/1/3/0/7/130738721/silakole-bopaw-fowarapo.pdf
    • http://pebule.championcleaning.net/uploads/1/3/1/3/131382134/8272b4cb409.pdf
    • http://biduminib.hedongreenprint.co.uk/uploads/1/3/1/6/131637240/waxegudoxiti-naforavulo-xipibilogusov-vudebaze.pdf
    • http://files.aayogaandwellness.com/uploads/1/3/0/7/130776449/ee9c740dcb2de0.pdf
    • https://cdn.shopify.com/s/files/1/0433/9875/8557/files/86783601335.pdf
    • https://cdn.shopify.com/s/files/1/0433/4541/2261/files/luxevumarejazulewimaban.pdf
    • https://cdn.shopify.com/s/files/1/0446/7389/2515/files/advantages_of_geothermal_energy.pdf
    • https://cdn.shopify.com/s/files/1/0447/1390/2234/files/african_union_organs.pdf
    • https://cdn.shopify.com/s/files/1/0433/3391/0681/files/79006131940.pdf
    • https://cdn.shopify.com/s/files/1/0431/6243/5739/files/givisatu.pdf
    • https://cdn.shopify.com/s/files/1/0437/2480/0154/files/nagedop.pdf
    • https://cdn.shopify.com/s/files/1/0431/6119/0559/files/40425605562.pdf
    • https://cdn.shopify.com/s/files/1/0430/7219/2669/files/articles_with_geographical_names_test.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_off00006982.bin
b11178f31e168a3f6fa0c194313cc38949d68f2c795350505713a30704c79ab8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6982 5300 bytes
font_01_sfnt_off00007b7b.bin
42e68f5c7dc7df1ec2dd76f7e1a3fad684574a2f3e9c3364df198745ac7f3a7a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7B7B 10072 bytes

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