Malicious PDF — malware analysis report

Static analysis result for SHA-256 1fefe91633fcd0c8…

MALICIOUS

PDF

65.8 KB Created: 2020-08-17 00:10:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a14405e4a3e583f1f76c335cd26d2387 SHA-1: 62e84717d2886e00ca16357d5edae687b9ec8fe2 SHA-256: 1fefe91633fcd0c843c28695f825da5bd4c33e71aabcc7aa3cdac3ec3b06ff65
150 Risk Score

Malware Insights

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

The PDF document was flagged by multiple critical heuristics for containing malicious redirector links and a large link farm, indicating a likely SEO spam or phishing campaign. The embedded URL 'https://ttraff.ru/pify?keyword=filmywap+2017+hollywood+movies+in+english' is identified as a malicious redirector. The document body, though heavily obfuscated, contains references to this URL and appears to be a lure for movie-related content, which is a common tactic for distributing malware or leading users to malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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=filmywap+2017+hollywood+movies+in+english
    • http://lijegub.andrezsemini.com/uploads/1/3/1/4/131437914/5282496.pdf
    • http://files.firpoint.net/uploads/1/3/1/4/131407423/ruluxepavuvavub_veruzawixekon_suwivifafi_pokobakexano.pdf
    • http://wozepog.countertruth.com/uploads/1/3/2/8/132814930/zarewukenisaxe_mesabudipewe.pdf
    • https://cdn.shopify.com/s/files/1/0431/0099/5741/files/riratalezixulifuxemosuwi.pdf
    • https://cdn.shopify.com/s/files/1/0431/3523/8301/files/fuzufewazisifus.pdf
    • https://cdn.shopify.com/s/files/1/0434/4253/6598/files/fekevex.pdf
    • https://cdn.shopify.com/s/files/1/0434/2870/8519/files/bopotuvisirupekikuk.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/1317992411.pdf
    • https://cdn.shopify.com/s/files/1/0431/6535/2093/files/pizelajerotef.pdf
    • https://cdn.shopify.com/s/files/1/0430/9080/4893/files/23681974309.pdf
    • https://cdn.shopify.com/s/files/1/0437/9007/4018/files/12163885412.pdf
    • https://cdn.shopify.com/s/files/1/0428/6716/3302/files/bedoxufumojavoxebirudirud.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_off0000c1ee.bin
524ee7977656dd5e1a6bb3c6cc49094b6b8d18a9e6f99e6aa595e8a4eec349b5		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC1EE 5892 bytes
font_01_sfnt_off0000d609.bin
6a26cf2f3374a6d72818143b278a4521ef57cc465c06bc3d0211ccd2217205e2		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD609 10928 bytes

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