Malicious PDF — malware analysis report

Static analysis result for SHA-256 b042b31a2dd4322e…

MALICIOUS

PDF

43.0 KB Created: 2020-08-22 12:24:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5061e8f45a9d099ecf4dfba46f57fa83 SHA-1: cb79075879a94f8660d24745d7979e90b0ac6987 SHA-256: b042b31a2dd4322ecfc46061119a7a78458d24079c7c1fff858cc0de3cd775d9
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.cc/pify?keyword=aligarh+full+movie++hd'. This URL is presented within the document body, suggesting a lure to trick users into clicking it. The file also exhibits characteristics of a link farm, with numerous external PDF links, many hosted on Shopify. The primary malicious IOC is the redirector URL, which likely leads to 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.cc/pify?keyword=aligarh+full+movie++hd
    • http://files.avoicecrying.com/uploads/1/3/2/6/132681586/xiwipabipikut-poreguripaxolat-vakezizis-zurobi.pdf
    • http://files.thiottawa.org/uploads/1/3/1/4/131407547/ad4c62d3fe70da.pdf
    • http://files.athisfeet.org/uploads/1/3/2/3/132302995/wijedutotuteron.pdf
    • https://cdn.shopify.com/s/files/1/0432/5064/7204/files/29353812200.pdf
    • https://cdn.shopify.com/s/files/1/0429/1185/8855/files/read_little_house_in_the_big_woods.pdf
    • https://cdn.shopify.com/s/files/1/0462/5622/6458/files/cbse_net_application_form_2019.pdf
    • https://cdn.shopify.com/s/files/1/0439/6518/6206/files/32467436797.pdf
    • https://cdn.shopify.com/s/files/1/0433/3751/5176/files/british_english_and_american_english_differences.pdf
    • https://cdn.shopify.com/s/files/1/0434/5790/4792/files/army_aptitude_test_practice.pdf
    • https://cdn.shopify.com/s/files/1/0431/0764/7639/files/10211946078.pdf
    • https://cdn.shopify.com/s/files/1/0431/0302/7361/files/telecharger_catalogue_schneider_electric_2020.pdf
    • https://cdn.shopify.com/s/files/1/0434/4433/8854/files/17095961412.pdf
    • https://cdn.shopify.com/s/files/1/0431/5460/4198/files/pigorigemi.pdf
    • https://cdn.shopify.com/s/files/1/0439/2147/3691/files/big_o_notation_examples_in_data_structure.pdf
    • https://cdn.shopify.com/s/files/1/0429/4498/7292/files/pokemon_red_guide.pdf
    • https://cdn.shopify.com/s/files/1/0427/7560/9510/files/levupukepafivezijo.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005521.bin
716446b02e104df8da9a55e38c88bfa75cfe3013d913b4d92201893f86322214
pdf-font-stream PDF embedded font (sfnt) at offset 0x5521 5192 bytes
font_01_sfnt_off000066ab.bin
85feb0d19327d2177d915c246ed7a978158180bda59d7620bccdb48d892ec5c8
pdf-font-stream PDF embedded font (sfnt) at offset 0x66AB 10336 bytes
font_02_sfnt_off00008a07.bin
6e3fbd491d8b71441998836ddca0d0c102716a221ea14f8143929167ad9a79b3
pdf-font-stream PDF embedded font (sfnt) at offset 0x8A07 16164 bytes