Malicious PDF — malware analysis report

Static analysis result for SHA-256 16857b8e3eab6cf3…

MALICIOUS

PDF

53.9 KB Created: 2020-04-09 23:49:11 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6) First seen: 2021-01-23
MD5: 8661397eb59d99eb54ecdb99e4d917a6 SHA-1: 29d1e9b7577c06de56e118e9391dbac2f7dcb08f SHA-256: 16857b8e3eab6cf3db3a13133e9d5b09e51f2f8fa75c1ef685eec1c3c207dda6
96 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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://arsoni.st/uploads/1/3/0/5/130545633/130545633.html#tezkiret%C3%BC%27l+evliya+s%C3%BCleyman+uluda%C4%9F+pdf PDF link annotation
    • http://tlcequipmentfinance.com/uploads/1/3/0/7/130776304/b2cd247762.pdfIn PDF document text
    • http://ultimatefantasyfighting.net/uploads/1/3/0/7/130776304/ramaxavijunok.pdfIn PDF document text
    • http://doublebounceback.com/uploads/1/3/0/6/130605133/1612027e0.pdfIn PDF document text
    • http://willoweventplanning.com/uploads/1/3/1/3/131383480/zapekuse_luxaruv_rorop.pdfIn PDF document text
    • http://callpaullandscaping.com/uploads/1/3/0/4/130483879/6928271.pdfIn PDF document text
    • http://woodlandadventurers.net/uploads/1/3/0/5/130540882/kumitizevuzabifujog.pdfIn PDF document text
    • http://stpetersrestoration.org/uploads/1/3/0/3/130379151/dfe0e.pdfIn PDF document text
    • http://drewgentleart.com/uploads/1/3/0/4/130436339/mepom-jaxazan-juvom-gameke.pdfIn PDF document text
    • http://opportunitypalestine.com/uploads/1/3/0/9/130969841/gumeto_dejuvaxaxog.pdfIn PDF document text
    • http://stiofanocadhla.com/uploads/1/3/0/4/130483429/238128.pdfIn PDF document text
    • http://blackmarigoldjewelry.com/uploads/1/3/0/7/130776002/wurajejevelepeju.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00008bcf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8BCF 11080 bytes
SHA-256: 22a59946057147d945c5de4d5f424fc49a57c2ddf1d1b81e1f52b4bbb283805a
font_01_sfnt_off0000afb0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAFB0 16912 bytes
SHA-256: 3fec83365873aacb42b730e637e4d0c1718e582dbf12446350d3b01a6775d9e3

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