Malicious PDF — malware analysis report

Static analysis result for SHA-256 8bd50abeff0cf66b…

MALICIOUS

PDF

37.9 KB Created: 2020-08-19 05:29:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5acc6554bcbddadaf26e0863fa5d67bd SHA-1: 59c35adff00bc4f51d6550020c4ae0ab73463e92 SHA-256: 8bd50abeff0cf66bb9350c08806d07c89b5b0296387809574ff7b93db5a2be75
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.com/pify?keyword=vande+mataram+instrumental+free++ar+rahman'. This indicates a social engineering attempt to direct the user to malicious content. The document also contains a large number of embedded links, many pointing to Shopify domains, which is characteristic of SEO link farm abuse to disguise malicious intent. No scripts were extracted, but the primary attack vector appears to be the malicious redirector.

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=vande+mataram+instrumental+free++ar+rahman
    • http://files.qualityfolkdojo.com/uploads/1/3/0/7/130738801/puditedigode-darilusikewini-silimevo.pdf
    • http://files.andyreimanis.com/uploads/1/3/0/8/130874238/lezapotanoxosib.pdf
    • https://cdn.shopify.com/s/files/1/0439/2602/8456/files/cable_girls_parents_guide.pdf
    • https://cdn.shopify.com/s/files/1/0432/1122/7300/files/228216300.pdf
    • https://cdn.shopify.com/s/files/1/0434/5570/9341/files/wivap.pdf
    • https://cdn.shopify.com/s/files/1/0430/6960/4001/files/94362611060.pdf
    • https://cdn.shopify.com/s/files/1/0428/8479/2479/files/pagojuremalofatodexalusu.pdf
    • https://cdn.shopify.com/s/files/1/0430/0134/8255/files/42387429808.pdf
    • https://cdn.shopify.com/s/files/1/0436/1102/9666/files/17964806043.pdf
    • https://cdn.shopify.com/s/files/1/0435/1678/8890/files/attracting_and_retaining_talented_employees.pdf
    • https://cdn.shopify.com/s/files/1/0434/1966/4540/files/avril_lavigne_rock_n_roll.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_off00004822.bin
cb1e54cf736b44c198144163ffbab32db62bbfd5603520c1c4dc63eee119dab3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4822 4884 bytes
font_01_sfnt_off00005879.bin
8b9f7da677fb4350c490c1bde0964f29adbcf3ee6baf411253f6fe9c07f672a3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5879 10756 bytes
font_02_sfnt_off00007d21.bin
0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7D21 4324 bytes

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