Malicious PDF — malware analysis report

Static analysis result for SHA-256 a0ed0a711649ebd0…

MALICIOUS

PDF

65.2 KB Created: 2020-03-27 13:55:44 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 9d629c84eb5405ea5f4bfdeb2a72ab1b SHA-1: c19754ba0270fdfb9720a3289ad2dc67db8b9826 SHA-256: a0ed0a711649ebd01a40ef8ac87b2e6620d91e74ec6e63459ca8c23c67f9dab2
92 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic, suggesting a link farm or redirection to malicious content. The ML classifier also strongly indicated maliciousness. The primary attack pattern involves luring users to external websites via these links, potentially for SEO manipulation or to serve further payloads.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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://treasures4yourheart.com/uploads/1/3/0/3/130323130/130323130.html#anais+nin+movie
    • http://briony.rocks/uploads/1/3/0/9/130969920/ruleso.pdf
    • http://crookedcrown.ca/uploads/1/3/0/9/130969762/7444680.pdf
    • http://momentswithmadds.org/uploads/1/3/0/4/130490399/827e24.pdf
    • http://lawnology.com/uploads/1/3/0/8/130874298/0e9d7d.pdf
    • http://zebrinclothing.com/uploads/1/3/0/5/130551249/8155644.pdf
    • http://gabbiadelcazzo.com/uploads/1/3/0/2/130289779/3bc177abfdf3.pdf
    • http://friendsfriendsfriends.com/uploads/1/3/0/4/130483134/26216ef817ecc.pdf
    • http://michaelgrew.net/uploads/1/3/0/4/130476207/7728091.pdf
    • http://london.silkymassage.net/uploads/1/3/0/6/130639542/739d8c21.pdf
    • http://alexascleaningservices.com/uploads/1/3/0/6/130622013/51b35005c0.pdf
    • http://conceptionconstruction.org/uploads/1/3/0/5/130588659/zosekifamisigibol.pdf
    • http://discountclosetspecialist.com/uploads/1/3/0/7/130738652/71b313889aa1562.pdf
    • http://bestilljill.com/uploads/1/3/0/7/130740173/fejiwovesazesasep.pdf
    • http://empireofthedead.org/uploads/1/3/0/3/130323641/parimo.pdf
    • http://kingdomdvlpr.com/uploads/1/3/0/4/130435807/5222793.pdf
    • http://handipapers.com/uploads/1/3/0/2/130274370/lenefemibewipo.pdf
    • http://deercreekarchery.com/uploads/1/3/0/7/130775304/gusudi.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_off0000bddb.bin
13e1bc82225e4f9ab84907d5a494faf311f8e1ade3b68138e4104fdc5d6cf6ce		 pdf-font-stream PDF embedded font (sfnt) at offset 0xBDDB 9812 bytes
font_01_sfnt_off0000e1ad.bin
fdcd9ec1285a8d3c68ecdf38f244675c538998e3ee858d015968910288dd394e		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE1AD 16196 bytes

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