Malicious PDF — malware analysis report

Static analysis result for SHA-256 df4d634ab34709ad…

MALICIOUS

PDF

41.4 KB Created: 2020-07-28 04:45:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 60f3517d55c125ec668f4b66d68d5a6b SHA-1: 48111e3917aefb7335a502de7fd85a66c66e12fa SHA-256: df4d634ab34709add8a766ecbaf39340f25e8ae5fc188899e5d60beffec11199
120 Risk Score

Malware Insights

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

The PDF file contains multiple embedded links, with one specifically pointing to a known malicious redirector. The document body, though heavily obfuscated, suggests a lure related to 'agriculture college in maharashtra pdf'. The presence of numerous external PDF links, many hosted on cdn.shopify.com, indicates a link farm strategy, likely to obscure the ultimate malicious destination. The primary malicious IOC is the ttraff.com redirector URL.

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=agriculture+college+in+maharashtra+pdf
    • http://files.jennijoyce.com/uploads/1/3/1/4/131408432/viwozev.pdf
    • http://files.kruoutdoors.com/uploads/1/3/0/9/130969360/wivokoladi_pidav_lobedipakudi_rukotitifa.pdf
    • http://files.prairieolive.ca/uploads/1/3/0/7/130776110/c0a64246.pdf
    • http://files.prairieolive.ca/uploads/1/3/0/7/130776110/c0
    • https://cdn.shopify.com/s/files/1/0428/8921/6163/files/40460541404.pdf
    • https://cdn.shopify.com/s/files/1/0433/8148/9813/files/33127499564.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/43106273748.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/89965927340.pdf
    • https://cdn.shopify.com/s/files/1/0428/7417/5644/files/57477865452.pdf
    • https://cdn.shopify.com/s/files/1/0431/3851/5098/files/81209539268.pdf
    • https://cdn.shopify.com/s/files/1/0429/6962/8828/files/64046984649.pdf
    • https://cdn.shopify.com/s/files/1/0432/7391/2488/files/67397133554.pdf
    • https://cdn.shopify.com/s/files/1/0432/3803/1518/files/42298765945.pdf
    • https://cdn.shopify.com/s/files/1/0428/0477/3031/files/95942488129.pdf
    • https://cdn.shopify.com/s/files/1/0429/8145/8069/files/raremixareborejaraselela.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_off000063c2.bin
fac70a5b648369011aa5785dd2ea6adc391e63698da37a1571690a161ac725af		 pdf-font-stream PDF embedded font (sfnt) at offset 0x63C2 5440 bytes
font_01_sfnt_off0000760a.bin
83acadf95b8a531806e320b74413cd64ac2999a5e3597c93acbc6c0fab3973f6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x760A 10032 bytes

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