Malicious PDF — malware analysis report

Static analysis result for SHA-256 237af131bf5c7f9e…

MALICIOUS

PDF

39.7 KB Created: 2020-06-01 23:46:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9293fbd97510ddb6aad7ad228765f8f1 SHA-1: 1979e71dc4ac9bf63ba9c6a20f1788489ab1c6e7 SHA-256: 237af131bf5c7f9e6593b9f0e1846ddff60a07e0dab75416f153215f4cd5deb8
62 Risk Score

Malware Insights

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

The PDF document contains a large number of external links, many of which point to other PDF files on various domains. This behavior is indicative of a link farm designed to direct users to potentially malicious content or to manipulate search engine rankings. The primary lure appears to be related to 'Ixia traffic generator' based on the document body and one of the extracted URLs.

Heuristics 3

  • 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.
  • 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://74-123-73-7.mgwnet.com/uploads/1/3/0/2/130289209/130289209.html#ixia+traffic+generator
    • http://amsterdamdreams.com/uploads/1/3/1/8/131871739/waleti.pdf
    • http://pur7oil.com/uploads/1/3/0/9/130969082/sorokowanob-jimimopuwuwujal-jatew.pdf
    • http://ibn-ca.com/uploads/1/3/0/4/130492963/8c2437ab47eb.pdf
    • http://247-movers.com/uploads/1/3/0/3/130379408/f67298e47.pdf
    • http://betterworldbetterfuture.com/uploads/1/3/0/4/130476505/begifuzukuvudo_povepiw.pdf
    • http://74-123-73-7.mgwnet.com/uploads/1/3/0/2/130289209/terms.html
    • http://74-123-73-7.mgwnet.com/uploads/1/3/0/2/130289209/dmca.html
    • http://74-123-73-7.mgwnet.com/uploads/1/3/0/2/130289209/policy.html
    • https://bilonuzikare.files.wordpress.com/2020/05/42064606824.pdf
    • https://tefizewu.files.wordpress.com/2020/05/16640299758.pdf
    • https://melexiv.files.wordpress.com/2020/05/jugaxunemawafifu.pdf
    • https://zeluwisopij.files.wordpress.com/2020/05/27829342646.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_off00006f19.bin
8fcd779a06a7617fed244a06c8580d7552b1fbe53090ae8aad9d709dd22a70c1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6F19 10860 bytes

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