Malicious PDF — malware analysis report

Static analysis result for SHA-256 c650ad1c1656f0c2…

MALICIOUS

PDF

47.2 KB Created: 2020-07-19 05:13:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ec2b996c92df94f69e6b79b237ab3a8d SHA-1: c0c6171517de1114550507451822d6879f411d38 SHA-256: c650ad1c1656f0c2563114892215182e09764ece079910d3d43534b9a3838a8d
142 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link T1059.001 PowerShell

The PDF contains a link farm designed to redirect users to malicious sites, as indicated by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body, though heavily obfuscated, suggests a lure related to 'Acura Canada warranty manual'. The presence of numerous external PDF links points towards a link farm strategy for distributing malicious content or phishing. No scripts were extracted from this sample.

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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns
  • 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/wb?keyword=acura%20canada%20warranty%20manual
    • http://files.medicalherbalistsussex.com/uploads/1/3/2/6/132682040/madumim_topegonedef.pdf
    • http://files.mobilpapershredding.com/uploads/1/3/1/4/131407918/61b88.pdf
    • http://files.caribbeandawn.com/uploads/1/3/1/3/131398334/fevomigilukupeb.pdf
    • http://files.dafniantonarou.com/uploads/1/3/0/7/130740624/5b84b81.pdf
    • http://files.chackbayfire.com/uploads/1/3/0/7/130775220/nituzukukebuxar.pdf
    • http://files.marahgaiti.com/uploads/1/3/1/8/131872273/4252089.pdf
    • http://files.thepoipuppy.com/uploads/1/3/0/7/130739601/7c1158dfb9bf443.pdf
    • http://files.fishwoodworking.com/uploads/1/3/0/9/130969312/b7de32271d16.pdf
    • http://files.decaturcountyworks.com/uploads/1/3/1/4/131453453/muxafukoteluwufo.pdf
    • http://files.liberato.us/uploads/1/3/1/4/131412290/9a6944c.pdf
    • http://files.fishwoodworking.com/uploads/1/3/0/9/130969312/b7de32271
    • https://zizejabiwugu.files.wordpress.com/2020/07/dugesaguzogugeselixuwe.pdf
    • https://gijatok.files.wordpress.com/2020/06/53073680113.pdf
    • https://lofukidowoji.files.wordpress.com/2020/07/1473184629.pdf
    • https://lugopago.files.wordpress.com/2020/06/niwenigepakup.pdf
    • https://cdn.shopify.com/s/files/1/0430/9522/8565/files/73310617751.pdf
    • https://cdn.shopify.com/s/files/1/0431/2629/2629/files/76068249426.pdf
    • https://cdn.shopify.com/s/files/1/0432/7541/9798/files/pigigajugewikafimenevan.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/94323725826.pdf
    • https://cdn.shopify.com/s/files/1/0430/3070/8375/files/56382767942.pdf
    • https://cdn.shopify.com/s/files/1/0430/4447/0945/files/70160349598.pdf
    • https://cdn.shopify.com/s/files/1/0431/2514/5760/files/40968329124.pdf
    • https://cdn.shopify.com/s/files/1/0428/9229/6359/files/jafekisulozere.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_off00007b95.bin
2787ba3fe446977bff318cd0afa560e3b9038373c056f657b7eea2a1c4a68782		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7B95 4696 bytes
font_01_sfnt_off00008b76.bin
17d52a41068305a488352d93ef42be5d10642702524625de8f0e7ac39ac4ec02		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8B76 10564 bytes

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