Malicious PDF — malware analysis report

Static analysis result for SHA-256 b98c9830e62736fd…

MALICIOUS

PDF

39.6 KB Created: 2020-08-05 11:49:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5235ce3f4a41cb219a10b28cc52f664d SHA-1: f306f1234f08f3a355a0137b10ba67b049afd9f0 SHA-256: b98c9830e62736fd27f3d2424b8d3ab666451f8cb0e8ea353c2dfacd818974f7
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, with at least one identified as a malicious redirector. The document body, though partially corrupted, contains the URL 'https://ttraff.ru/pify?keyword=hemostasis+adalah+pdf', which is flagged as malicious. The presence of numerous links, many pointing to Shopify domains, suggests a link farm or SEO poisoning tactic to drive traffic to malicious sites.

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=hemostasis+adalah+pdf
    • http://files.farmsourceco.com/uploads/1/3/0/7/130776661/zuwagiwujivusa.pdf
    • http://files.blissfamilychiropractic.com/uploads/1/3/1/3/131382223/9c6c1.pdf
    • http://files.retreatatprairiewind.com/uploads/1/3/0/9/130969206/sugojabetavivivosora.pdf
    • https://cdn.shopify.com/s/files/1/0432/5664/3739/files/critical_thinking_questions_examples.pdf
    • https://cdn.shopify.com/s/files/1/0430/4571/6129/files/menimobutu.pdf
    • https://cdn.shopify.com/s/files/1/0435/1895/1576/files/nyu_personal_statement.pdf
    • https://cdn.shopify.com/s/files/1/0431/9975/8497/files/pazewut.pdf
    • https://cdn.shopify.com/s/files/1/0431/5509/5716/files/gerawemewevisi.pdf
    • https://cdn.shopify.com/s/files/1/0429/3391/1705/files/fixebetefafesuzeresovej.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/26443777516.pdf
    • https://cdn.shopify.com/s/files/1/0434/3028/1377/files/44306277481.pdf
    • https://cdn.shopify.com/s/files/1/0430/0704/9877/files/lesovezipuzafe.pdf
    • https://cdn.shopify.com/s/files/1/0433/3685/9813/files/xogoweju.pdf
    • https://cdn.shopify.com/s/files/1/0431/3448/4648/files/tudebezubewojulitemiweti.pdf
    • https://cdn.shopify.com/s/files/1/0431/6200/9755/files/kelami.pdf
    • https://cdn.shopify.com/s/files/1/0432/6516/3422/files/warajawotabitelal.pdf
    • https://cdn.shopify.com/s/files/1/0430/9028/0609/files/45501690760.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_off00005e36.bin
8486b1bf110a25a76d7c128d4bdfe446650df5da71ce2878c45e86b097624d93		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5E36 5148 bytes
font_01_sfnt_off00006f8c.bin
82406ab642272821e485a7aa1b1299ed37024184caa7b440af7a5f3d12602b68		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6F8C 9992 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.