Malicious PDF — malware analysis report

Static analysis result for SHA-256 c26338639f4efff0…

MALICIOUS

PDF

47.2 KB Created: 2020-08-25 19:49:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9177a433a252b47b9d978a4511dc6244 SHA-1: 2a667d76625f2593de78f7662fe89f6b265ac181 SHA-256: c26338639f4efff007ce02ae882a95db5262a84abf788a927054300e0c7bf2e4
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 pointing to 'ttraff.com'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded URLs, many hosted on Shopify. The document body, though partially corrupted, contains the same redirector URL and a seemingly unrelated topic ('shani beej mantra mp3 free download'), suggesting a lure. 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.com/pify?keyword=shani+beej+mantra+mp3+free+download
    • http://files.wellingtontrace.com/uploads/1/3/1/0/131070501/kamujax_wajemusifinarit.pdf
    • http://xavudikup.tongatextiles.com/uploads/1/3/2/7/132712676/4393ef.pdf
    • http://jezafirab.beachstreetboutiqueapparel.com/uploads/1/3/2/6/132695351/f231285a99f.pdf
    • http://nadojolu.absolutelyaffordabletravel.com/uploads/1/3/1/4/131482995/4437811.pdf
    • https://cdn.shopify.com/s/files/1/0427/7341/4055/files/1690913682.pdf
    • https://cdn.shopify.com/s/files/1/0433/7880/2846/files/fuzigozasizunaf.pdf
    • https://cdn.shopify.com/s/files/1/0429/9423/7593/files/difukabawimaboli.pdf
    • https://cdn.shopify.com/s/files/1/0433/5940/4197/files/92392454467.pdf
    • https://cdn.shopify.com/s/files/1/0444/4412/3302/files/applied_physics_part_1.pdf
    • https://cdn.shopify.com/s/files/1/0437/9292/4821/files/37440230009.pdf
    • https://cdn.shopify.com/s/files/1/0437/9508/7522/files/berliner_platz_a2_neu.pdf
    • https://cdn.shopify.com/s/files/1/0433/3741/6869/files/waxawexi.pdf
    • https://cdn.shopify.com/s/files/1/0433/6248/4383/files/2086859231.pdf
    • https://cdn.shopify.com/s/files/1/0428/9144/4390/files/apoptotic_factors.pdf
    • https://cdn.shopify.com/s/files/1/0431/8406/2622/files/bihar_school_of_yoga_books_download.pdf
    • https://cdn.shopify.com/s/files/1/0433/7926/1590/files/zixomipefovepoxuk.pdf
    • https://cdn.shopify.com/s/files/1/0434/6331/1512/files/amniote_egg_coloring_answers.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005449.bin
84382a54ae682aefcb3d8a87743c8a8711be4aad09800bb9cbe9a7ea15125f60
pdf-font-stream PDF embedded font (sfnt) at offset 0x5449 5680 bytes
font_01_sfnt_off0000676b.bin
4cd60777e265fafd80a6c4ac8a8f541642313e2b1c6670a3899fdf55b12f51bc
pdf-font-stream PDF embedded font (sfnt) at offset 0x676B 3772 bytes
font_02_sfnt_off00007310.bin
040be89d268b28cfa61fdac6c3e9a68301a50e0f52e1d87f6fba1bbdfa6ca8b3
pdf-font-stream PDF embedded font (sfnt) at offset 0x7310 10708 bytes
font_03_sfnt_off000097ee.bin
7b20072f7e370c238df658fd42bcd1cb97f0994a0a28c965103e6f51272c5a63
pdf-font-stream PDF embedded font (sfnt) at offset 0x97EE 6736 bytes