Malicious PDF — malware analysis report

Static analysis result for SHA-256 d44bb63a6e6ed201…

MALICIOUS

PDF

41.3 KB Created: 2020-08-05 03:16:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5fdec3a918d0a485f14971794ee87041 SHA-1: 7c5b201833b955a6fbd0ceebbf4301815646a84f SHA-256: d44bb63a6e6ed201ca9e8568da3e15bafa9d9e6a10435b313315793bd9408dfb
120 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to domains associated with SEO link farms and redirectors. The primary malicious URL identified is https://ttraff.cc/pify?keyword=bull+shoals+lake+map+pdf, which is flagged as a malicious redirector. The document body, though heavily obfuscated, contains text related to maps and manuals, suggesting a lure to disguise the malicious intent. The presence of numerous links to external PDFs, including those hosted on Shopify, indicates a strategy to distribute malicious content or phish users.

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.cc/pify?keyword=bull+shoals+lake+map+pdf
    • http://files.precisionofcarey.com/uploads/1/3/1/3/131380569/5990862.pdf
    • http://files.austinwhendricks.com/uploads/1/3/0/7/130738531/9166194.pdf
    • http://nalabavuz.kimpietrzak.com/uploads/1/3/1/4/131406893/c8488599af50.pdf
    • http://files.sunharbourstudio.ca/uploads/1/3/0/7/130776142/cf292.pdf
    • http://files.missionalworship.com/uploads/1/3/1/4/131437123/9b4add.pdf
    • https://cdn.shopify.com/s/files/1/0430/9660/4825/files/pimebivegusuxipoj.pdf
    • https://cdn.shopify.com/s/files/1/0428/9455/7351/files/46452002182.pdf
    • https://cdn.shopify.com/s/files/1/0435/6092/7393/files/2005_acura_tl_owners_manual.pdf
    • https://cdn.shopify.com/s/files/1/0438/4922/0256/files/67603419457.pdf
    • https://cdn.shopify.com/s/files/1/0432/3606/5435/files/zafewuvalofe.pdf
    • https://cdn.shopify.com/s/files/1/0437/3990/6197/files/72347840925.pdf
    • https://cdn.shopify.com/s/files/1/0431/7803/3313/files/38199347059.pdf
    • https://cdn.shopify.com/s/files/1/0433/5802/7928/files/certyfikat_kompetencji_zawodowych_przewonika_drogowego.pdf
    • https://cdn.shopify.com/s/files/1/0431/4864/0418/files/xigijoketujanuregiwabosa.pdf
    • https://cdn.shopify.com/s/files/1/0432/3485/3021/files/asean_charter_pdf_bahasa_indonesia.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_off000064cc.bin
e87e1d5b2675bd3d51f9e376167098974bd8840626703f49d79e9544575694ed		 pdf-font-stream PDF embedded font (sfnt) at offset 0x64CC 5296 bytes
font_01_sfnt_off000076b1.bin
21c89149858d18de9bd1f10643cf937d4fceea8aeaa688d2657dd4743e60c576		 pdf-font-stream PDF embedded font (sfnt) at offset 0x76B1 9848 bytes

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