Malicious PDF — malware analysis report

Static analysis result for SHA-256 335ed8b6b01f3f3c…

MALICIOUS

PDF

40.0 KB Created: 2020-08-16 01:04:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4d232d2ee62d6456baafa811ab6c4ac1 SHA-1: e3701ddd6f72137c027d96102f0824c266f0cc43 SHA-256: 335ed8b6b01f3f3c0ff2d1b4966104a45b86a0d7f6f7357b52bec994c7fbbdce
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=yellamma+cassette+video+songs'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded URLs, many hosted on cdn.shopify.com. The document body contains the lure text 'Yellamma cassette video songs' and the malicious URL, suggesting an attempt to trick users into clicking the link. No scripts were extracted from this sample.

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=yellamma+cassette+video+songs
    • http://files.oldlinereferees.org/uploads/1/3/2/6/132681488/jutuvegopubameg.pdf
    • http://files.demelzafox.com/uploads/1/3/0/8/130874612/gokadipem.pdf
    • http://vosujakuw.gesamtschule-kunow.net/uploads/1/3/1/4/131453252/1626093.pdf
    • http://bomureb.laharpelibrary.com/uploads/1/3/0/9/130969465/3963788.pdf
    • https://cdn.shopify.com/s/files/1/0432/8371/0117/files/xodasuda.pdf
    • https://cdn.shopify.com/s/files/1/0427/6341/9815/files/xezeluramapigodamonuxi.pdf
    • https://cdn.shopify.com/s/files/1/0434/5525/0598/files/33251061542.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/19252536586.pdf
    • https://cdn.shopify.com/s/files/1/0431/7950/7875/files/evidence_based_approach.pdf
    • https://cdn.shopify.com/s/files/1/0435/2940/4567/files/84052311122.pdf
    • https://cdn.shopify.com/s/files/1/0437/0196/0854/files/anemia_hemolitica_diagnostico.pdf
    • https://cdn.shopify.com/s/files/1/0427/9926/8003/files/7082763428.pdf
    • https://cdn.shopify.com/s/files/1/0437/8837/0072/files/altrincham_college_of_arts_6th_form.pdf
    • https://cdn.shopify.com/s/files/1/0435/2222/8379/files/wajojewa.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_off000048df.bin
849a08b94c13a55150d60845cfcae65d5ce5c2af5ff43599ff34ad71da778a3d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x48DF 5184 bytes
font_01_sfnt_off00005a76.bin
fc63b1961750506a154190a8800e2344fabd1c9ae323b36b83e290ba3da8dc96		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5A76 3100 bytes
font_02_sfnt_off0000673c.bin
79a6131a9d722eaa1cbc07879883354528f27ff3ee597887be1244e8d69d9cdb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x673C 13768 bytes

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