Malicious PDF — malware analysis report

Static analysis result for SHA-256 c1477f68c335d21e…

MALICIOUS

PDF

39.3 KB Created: 2020-03-31 05:56:47 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 65d4096f4291e817aadea9b38a928699 SHA-1: 28f71ca07ca76a2420fe427a17643df60eed3d40 SHA-256: c1477f68c335d21ea029a6db2cccb977d3c3272be439f8481601348fed6631d8
62 Risk Score

Malware Insights

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

The PDF document contains a large number of embedded external links, characteristic of a link farm or SEO poisoning attack. The primary heuristic indicates a mass of external PDF links generated for SEO purposes, with the dominant host being trinityplantsale.com. The document body, though partially corrupted, contains a URL pointing to chuzhappy.com, which is also listed among the extracted URLs. This suggests the document's purpose is to redirect users to a network of potentially malicious or deceptive websites.

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://chuzhappy.com/uploads/1/3/0/9/130969703/130969703.html#os+deslizamento+dos+filamentos+de+actina+e+miosina
    • http://trinityplantsale.com/uploads/1/3/0/6/130603709/2895065.pdf
    • http://freshestset.com/uploads/1/3/0/9/130969452/wotijotakafesegama.pdf
    • http://chloelgroup.com.au/uploads/1/3/0/5/130543052/6413656.pdf
    • http://brandonchonko.com/uploads/1/3/0/3/130313215/japogujozifo.pdf
    • http://fredsmetalworks.com/uploads/1/3/0/2/130288514/wukuzene_ranuxore_lulab_lumed.pdf
    • http://dashincar.com/uploads/1/3/0/4/130483957/1165843.pdf
    • http://celestialfx.com/uploads/1/3/0/2/130272862/rofume.pdf
    • http://naturalhorsemanshipcentre.com/uploads/1/3/0/5/130588997/siketuredo.pdf
    • http://workout-strong.com/uploads/1/3/0/5/130545957/bedolibi-pepedaxaretowid-gilokiwi-xutejurolowuwo.pdf
    • http://tencargologistics.com/uploads/1/3/0/5/130551391/6770265.pdf
    • http://linkwestapt.com/uploads/1/3/0/2/130270742/dipeb.pdf
    • http://it-alaska.com/uploads/1/3/0/7/130739764/5617313.pdf
    • http://northridgevillesubway.com/uploads/1/3/0/7/130775306/4654129.pdf
    • http://rebeccaspostpartumservices.com/uploads/1/3/0/3/130323145/fefofefujeme_rurim_gixodisit_mijodomiwem.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_off00006d70.bin
e29c16ce6b6113dd680be09c8ec4811852cf68b42452c7ff982f91a8d17aa756		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6D70 9948 bytes

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