Malicious PDF — malware analysis report

Static analysis result for SHA-256 c4e7918d68bbc7d6…

MALICIOUS

PDF

54.7 KB Created: 2020-08-05 08:44:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 411c34a3333e4da4bddd330c4d04e2c1 SHA-1: 5977b5bbd601f5298e36ce5d75a026427c0ecf52 SHA-256: c4e7918d68bbc7d695475a229b7be247e68a3a1289fa53beb26d2bc761602422
128 Risk Score

Malware Insights

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

The PDF contains a lure related to 'Ahmednagar police bharti 2020 question paper pdf' and includes a call-to-action button. Crucially, it links to a known malicious redirector at 'ttraff.ru', which is designed to lead users to further malicious content. The document also contains a large number of links to other PDFs hosted on various domains, suggesting a link farm or SEO poisoning tactic to improve search engine visibility for malicious lures.

Heuristics 4

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=ahmednagar+police+bharti+2020+question+paper+pdf
    • http://palodos.dukedooketami.com/uploads/1/3/2/7/132740900/9906f9fd0.pdf
    • http://files.livingwaterswellness.org/uploads/1/3/2/6/132681488/tutivabaxobago-mifalivodusu-rotobonegat-leluxu.pdf
    • http://files.cekelly.org/uploads/1/3/1/4/131406068/6903595.pdf
    • http://files.breneman.club/uploads/1/3/1/0/131070434/3322815.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/tipibag.pdf
    • https://cdn.shopify.com/s/files/1/0431/0269/9681/files/67996360449.pdf
    • https://cdn.shopify.com/s/files/1/0432/7381/4182/files/gekoxovolisusiroxuxer.pdf
    • https://cdn.shopify.com/s/files/1/0431/6705/6028/files/80167378779.pdf
    • https://cdn.shopify.com/s/files/1/0433/6232/0536/files/introductory_chemistry_tro_5th_edition.pdf
    • https://cdn.shopify.com/s/files/1/0437/4921/2309/files/kegepoladiwepubanarega.pdf
    • https://cdn.shopify.com/s/files/1/0435/3507/3440/files/fokizofofegazalufex.pdf
    • https://cdn.shopify.com/s/files/1/0432/0428/0481/files/17298717209.pdf
    • https://cdn.shopify.com/s/files/1/0429/9898/8954/files/zexufubuwikusop.pdf
    • https://cdn.shopify.com/s/files/1/0430/9454/0452/files/59348989418.pdf
    • https://cdn.shopify.com/s/files/1/0431/0230/6468/files/98000420430.pdf
    • https://cdn.shopify.com/s/files/1/0429/7195/5351/files/xazekenazawuditedapoje.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006ac5.bin
bf388374138861f59d6ea3babcb70730475f7ad282acce35da8ac7f4deeccee5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6AC5 6096 bytes
font_01_sfnt_off00007f44.bin
6539b129c5cd894636dc8f40f53a156c00c8f46378ab4f137c96d687a1cff6ed		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7F44 3720 bytes
font_02_sfnt_off00008aa6.bin
d2b03841f5ac8cd1c246c72a3f0b850161399522a890b5b3d589f4a7205e41c7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8AA6 9948 bytes
font_03_sfnt_off0000acee.bin
7f0e6a96cf3ddc4ec8793f4adec16b69a6ea1f47125f92e39cb08ee846c4873b		 pdf-font-stream PDF embedded font (sfnt) at offset 0xACEE 9896 bytes

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