Malicious PDF — malware analysis report

Static analysis result for SHA-256 883c0fdafcb796dd…

MALICIOUS

PDF

47.2 KB Authoring application: OpenOffice Draw First seen: 2020-09-24
MD5: 65b1a8b0fdf90c16a486cbb9d62d4ad7 SHA-1: 0aec51489bf5ea83fdbb54c71c292b044ee45d07 SHA-256: 883c0fdafcb796ddbf1f14b33941e9431bbdd8d5be8c2cb46e20502414f1e48e
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains a large number of embedded external links to other PDF files hosted on various domains. This behavior is indicative of a link farm, often used for SEO manipulation or to distribute malicious content. The ClamAV detection and ML classifier further support its malicious nature.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9988

Heuristics 3

  • ClamAV: Pdf.Phishing.TtraffRobotInstall-7605656-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.TtraffRobotInstall-7605656-0
  • 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.
  • 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://suportland.net/uploads/1/3/0/6/130620521/riranakosenafet-jugokejegurulod-jodumabu.pdf In PDF document text
    • http://wtoservices.com/uploads/1/3/0/7/130776898/tidiru.pdfIn PDF document text
    • http://parislomas.net/uploads/1/3/0/6/130604294/semupififir.pdfIn PDF document text
    • http://beachesinsrilanka.com/uploads/1/3/0/2/130289375/1086308.pdfIn PDF document text
    • http://concordlawncareservices.com/uploads/1/3/0/3/130379363/zibetop_jogemoseletagub_kaxonewi_velen.pdfIn PDF document text
    • http://dofnelsonfaithfomation.com/uploads/1/3/0/3/130313585/3415191.pdfIn PDF document text
    • http://dgdiamondgalleria.com/uploads/1/3/0/6/130604185/potidowu.pdfIn PDF document text
    • http://mhessential.net/uploads/1/3/0/7/130775201/jijegamaxiwa.pdfIn PDF document text
    • http://scaldeferri.org/uploads/1/3/0/7/130775980/pudurozorovufenuken.pdfIn PDF document text
    • http://barbadiancanadians.com/uploads/1/3/0/7/130739817/kemexujix.pdfIn PDF document text
    • http://stevenyasell.com/uploads/1/3/0/6/130640013/kepudidoged.pdfIn PDF document text
    • http://desatascosbarcelona.net/uploads/1/3/0/7/130739162/69fc94a9c.pdfIn PDF document text
    • http://fiftybucksaweek.com/uploads/1/3/0/2/130271002/255800.pdfIn PDF document text
    • http://shadowmist-britishshorthair.com/uploads/1/3/0/3/130324324/06aa569f.pdfIn PDF document text
    • http://southerncottongoldenretrievers.com/uploads/1/3/0/6/130604815/tovuwefova.pdfIn PDF document text
    • http://7th-hitchin.org.uk/uploads/1/3/0/7/130776168/kepolabumavosok-kavul-vurisobegafaso.pdfIn PDF document text
    • http://naturalbabymag.com/uploads/1/3/0/6/130621575/1140987.pdfIn PDF document text
    • http://danielgordon.com/uploads/1/3/0/4/130435938/d3f94e2.pdfIn PDF document text
    • http://mandakemp.com/uploads/1/3/0/5/130589310/jibugi.pdfIn PDF document text
    • http://bataviagameon.com/uploads/1/3/0/2/130271159/mibufubud.pdfIn PDF document text
    • http://augellocontractors.com/uploads/1/3/0/8/130873786/2c7685.pdfIn PDF document text
    • http://mommalovesyou.net/uploads/1/3/0/4/130483215/nutupugibenuf.pdfIn PDF document text
    • http://mkmyoga.com/uploads/1/3/0/7/130738909/8160252.pdfIn PDF document text
    • http://xinliyulekaihu.br3h.com/uploads/1/3/0/8/130874322/130874322.html#letter+writing+in+french+pdfIn PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 5

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003cbb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3CBB 16036 bytes
SHA-256: 779aa567746046747dac965df7fdfb06ff632674a0a99ce247a327bf89f0fa63
font_01_sfnt_off00005466.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5466 9344 bytes
SHA-256: cdda7b6d835a1586e8aa7349a28cc4c12a8f88b323f7153071539115e2c9a69d

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