Malicious PDF — malware analysis report

Static analysis result for SHA-256 35eb90fca12dce6a…

MALICIOUS

PDF

46.9 KB Created: 2020-08-24 23:09:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8bfd023789c2df04d109a67863b79bed SHA-1: 1b14905d7215090f906a3c69541391b9ada31157 SHA-256: 35eb90fca12dce6aec7c51b9f7a0ca9306781bf6ef5c70bba1156f5b2c272a48
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains numerous embedded links, with one identified as a malicious redirector. The heuristic 'PDF_SEO_LINK_FARM' indicates a large number of external PDF links, suggesting a link farm designed to distribute malicious content. The primary malicious URL identified is https://ttraff.com/pify?keyword=aefi+ka+full+form, which is likely used to redirect users to a harmful destination. 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.com/pify?keyword=aefi+ka+full+form
    • http://motomarab.krishnayogastudio.com/uploads/1/3/0/9/130969352/00502630ab877a.pdf
    • http://files.kordesign.net/uploads/1/3/1/3/131383977/330cf29b.pdf
    • http://bikivi.simeksfarm.com/uploads/1/3/1/8/131856935/271ab40.pdf
    • http://bonut.africaintercultural.com/uploads/1/3/1/0/131070767/dozafunega.pdf
    • https://cdn.shopify.com/s/files/1/0431/8350/5570/files/pixelmon_tidal_bell.pdf
    • https://cdn.shopify.com/s/files/1/0433/4016/9374/files/concrete_and_abstract_nouns_worksheet_7th_grade.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/laxefasigapabaxirasu.pdf
    • https://cdn.shopify.com/s/files/1/0430/0298/6659/files/72139830323.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/51906755497.pdf
    • https://cdn.shopify.com/s/files/1/0434/5200/6552/files/49488720390.pdf
    • https://cdn.shopify.com/s/files/1/0432/2761/1300/files/32300510867.pdf
    • https://cdn.shopify.com/s/files/1/0433/8266/9464/files/77026660836.pdf
    • https://cdn.shopify.com/s/files/1/0428/5104/1447/files/tivupopu.pdf
    • https://cdn.shopify.com/s/files/1/0431/8570/1019/files/bollywood_songs_lyrics_book.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_off00006e85.bin
25db9e96f9b50ea8d6b7fb3cca8f2328943f5caf487928a084ab1f6024df8d21		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6E85 4484 bytes
font_01_sfnt_off00007dbb.bin
ab3a552955706eba04cd19f09bd02f6c9fed6f5d2a650dbc84a1759fc06df80d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7DBB 10376 bytes
font_02_sfnt_off0000a121.bin
cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA121 4324 bytes

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