Malicious PDF — malware analysis report

Static analysis result for SHA-256 a7c7fa3ec2f597b1…

MALICIOUS

PDF

39.7 KB Created: 2020-03-26 15:05:56 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 12af9edaaadbc955c55ea3d7f110d47d SHA-1: a887a8dfe996801096d64e77c344b4f948bd0717 SHA-256: a7c7fa3ec2f597b162147ff779d79bfa732ad34bc604151d66c1603e56f800e6
82 Risk Score

Malware Insights

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

The PDF document contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic, pointing to various PDF files. The document body also contains an embedded URL related to a 'Garmin speed cadence sensor not working' lure, and the SE_CALLBACK_LURE heuristic suggests a potential phishing or tech-support scam context. The primary attack pattern involves redirecting users to a link farm, likely for SEO manipulation or to host further malicious content.

Heuristics 4

  • 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
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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 http://ameenahsan.in/uploads/1/3/0/5/130539992/130539992.html#garmin+speed+cadence+sensor+not+working
    • http://amiguru-me.com/uploads/1/3/0/7/130775156/bujeru.pdf
    • http://autodiscover.bodysmartutah.com/uploads/1/3/0/4/130435884/fd2459ef.pdf
    • http://www.americascupaccommodations.com/uploads/1/3/0/6/130639609/nogiterenonita.pdf
    • http://bud-spencer.org/uploads/1/3/0/2/130289776/4826236.pdf
    • http://nvacupuncture.org/uploads/1/3/0/4/130483202/0ed0a6ef5a6.pdf
    • http://micheprint.com/uploads/1/3/0/3/130379638/2e6b91041019.pdf
    • http://www.teatimestorieskolkata.com/uploads/1/3/0/4/130488741/b564b.pdf
    • http://www.workrescuegear.com/uploads/1/3/0/6/130621240/9e39f1f1e0298.pdf
    • http://runningtoosuccess.com/uploads/1/3/0/8/130874165/3747623.pdf
    • http://archaeologicalgis.com/uploads/1/3/0/2/130271048/30fa61b0378.pdf
    • http://talesfromsixthgrade.com/uploads/1/3/0/5/130589318/6893ed903f575.pdf
    • http://cherylannmcgown.com/uploads/1/3/0/6/130620366/tafajutemamigati.pdf
    • http://fuckgeese.com/uploads/1/3/0/6/130621327/sonit_zevaba_digefodif.pdf
    • http://andrewgibson.ie/uploads/1/3/0/5/130541445/1574fae54bda.pdf
    • http://permezone.com/uploads/1/3/0/4/130483273/f54e5f8ae429423.pdf
    • http://itsthebates.com/uploads/1/3/0/5/130539225/xavumumipegajel.pdf
    • http://thomassackville.com/uploads/1/3/0/6/130639417/xilavamu-pojusufuxiva-xapiz-butuz.pdf
    • http://comicatedlife.com/uploads/1/3/0/7/130776661/4f560f33dfe1cc3.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 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007286.bin
7bb7a314c353e29e53c3e90a3462acc698c274c816bdcb0392691cc0d6a8910e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7286 7948 bytes

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