Malicious PDF — malware analysis report

Static analysis result for SHA-256 e6f1395c1bcf9e79…

MALICIOUS

PDF

87.2 KB Created: 2020-03-10 13:36:21 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6) First seen: 2020-09-24
MD5: a5b959635db2a6de15e085dc606316e8 SHA-1: b98eebd125b0f73d6ecf1f2f0e688bb697597b95 SHA-256: e6f1395c1bcf9e79910d1a08cc7e9f312a7a81a04a9144ec788019317d24fb8e
96 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic. These links point to various subdomains and appear to be designed to manipulate search engine results or lead users to potentially malicious content. The ML_NYX_PDF_MALICIOUS heuristic also strongly indicates malicious intent. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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://traveleverywherewithellisa.voyagerwebsites.com/uploads/1/3/0/5/130588344/130588344.html#akbar+birbal+kahani+marathi PDF link annotation
    • http://mrsbalisalisa.com/uploads/1/3/0/7/130775493/9578446.pdfIn PDF document text
    • http://hustlewithemma.com/uploads/1/3/0/6/130639308/mesurokawowo-sonesonora.pdfIn PDF document text
    • http://theezmoccasins.com/uploads/1/3/0/6/130620251/896fffab158fad.pdfIn PDF document text
    • http://drjeffbarone.com/uploads/1/3/0/8/130873982/jepugeromureg.pdfIn PDF document text
    • http://rogsonslaser.com/uploads/1/3/0/6/130620313/6362028.pdfIn PDF document text
    • http://st-john-baptist-church.com/uploads/1/3/0/8/130814290/9cd9859f765857a.pdfIn PDF document text
    • http://bekindbeusefulvote.com/uploads/1/3/0/6/130621916/nowep_nejaketulas_jetalasibofiwi.pdfIn PDF document text
    • http://lovelyuntamedrituals.com/uploads/1/3/0/5/130543099/5741512.pdfIn PDF document text
    • http://uzurichic.com/uploads/1/3/0/2/130270924/lekanovikowadufas.pdfIn PDF document text
    • http://mail.clclife.com/uploads/1/3/0/3/130379123/cfe98bbb4c7556b.pdfIn PDF document text
    • http://testprepbyrenee.com/uploads/1/3/0/6/130639720/f43cfe4498.pdfIn PDF document text
    • http://www.crokadile.com/uploads/1/3/0/6/130639544/bbb6f3eff.pdfIn PDF document text
    • http://webdisk.heroicproducts.net/uploads/1/3/0/9/130969991/8109059.pdfIn PDF document text
    • http://nativeitaliano.com/uploads/1/3/0/7/130739396/bofokugipume.pdfIn PDF document text
    • http://niagaraadvantage.ca/uploads/1/3/0/5/130545753/5157eba2.pdfIn PDF document text
    • http://vegasvoicelessons.com/uploads/1/3/0/6/130639554/nidodoluzodoke.pdfIn PDF document text
    • http://nirvanatails.net/uploads/1/3/0/2/130288399/6465466.pdfIn PDF document text
    • http://betteroffice.org/uploads/1/3/0/3/130323213/99ed9e.pdfIn PDF document text
    • http://digital-human.org/uploads/1/3/0/7/130740550/c78f929819af.pdfIn PDF document text
    • http://wildywell.com/uploads/1/3/0/6/130620490/dizisuzop.pdfIn PDF document text
    • http://nogra.net/uploads/1/3/0/2/130270826/mazewozudujesixaj.pdfIn PDF document text
    • http://45oakridgelane.com/uploads/1/3/0/9/130969690/1d11dff6061.pdfIn PDF document text
    • http://fedorahosted.org/lohitIn 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
    • https://savannah.gnu.org/projects/freefont/In PDF document text
    • http://www.gnu.org/licenses/In PDF document text
    • http://www.gnu.org/copyleft/gpl.htmlIn PDF document text

Related samples 8

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

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f691.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF691 7036 bytes
SHA-256: 7b12c4def3b8c0cdc71bfe964b2b8f5c04ea23422da963c6f468752aa286d72c
font_01_sfnt_off0001126d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1126D 1388 bytes
SHA-256: 1723f1ced37cc89d69e30f3df6281c5e5fb8989544fd4587aa75b00c91af2fd0
font_02_sfnt_off000119d3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x119D3 18136 bytes
SHA-256: 88fa35da7c7f996cb20759a23ed9ae262b7a16670224da92622f238a88bd3f43

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