Malicious PDF — malware analysis report

Static analysis result for SHA-256 2cd2468f65e7a3fb…

MALICIOUS

PDF

82.1 KB Created: 2021-03-10 07:47:06 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 2ee3370a1662047249529560485d9e40 SHA-1: 1068ef0fac4947a74edfc51abbc0455554daca20 SHA-256: 2cd2468f65e7a3fbdc283978e514cd594456bac6d8357fd524d3e8f7aea7abab
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document was flagged as malicious by an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9990

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 https://midufefew.ru/strik?utm_term=sarah+j+maas+court+of+thorns+and+roses+characters PDF link annotation
    • https://duzareledibasa.weebly.com/uploads/1/3/4/8/134890493/5751905.pdfIn PDF document text
    • http://famozosivupiwij.sportsontheweb.net/65755646950.pdfIn PDF document text
    • http://idealslimitalia-official.site/dolibomooliwo.pdfIn PDF document text
    • https://talupujepanuzan.weebly.com/uploads/1/3/4/5/134595677/788194.pdfIn PDF document text
    • http://vitonidero.medianewsonline.com/canales_de_distribucion_logistica.pdfIn PDF document text
    • http://bugosegu.scienceontheweb.net/kujixemagoserufalezetiwe.pdfIn PDF document text
    • http://itasda.online/21357782886pwnn6.pdfIn PDF document text
    • https://pusenosate.weebly.com/uploads/1/3/5/3/135347115/9b761f9e3ec7.pdfIn PDF document text
    • https://rabivavas.weebly.com/uploads/1/3/0/9/130969809/jemimonolol-sufajo-lofiwerepubus.pdfIn PDF document text
    • https://zelekunidos.weebly.com/uploads/1/3/2/6/132682808/80f21b802ebd.pdfIn PDF document text
    • http://netzamka.ru/65541780704wr8b4.pdfIn PDF document text
    • http://eslivdrug.space/6928507447agzns.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://wiwosotu.myartsonline.com/xajotasumopavawe.pdfIn PDF document text
    • https://s3.amazonaws.com/mipizaju/how_much_can_a_landlord_raise_rent_in_los_angeles_2020.pdfIn PDF document text
    • https://9d76d0c6-5807-43ac-a2ba-7b4112d1a20a.filesusr.com/ugd/5cd33b_dafe975b957449f4a5f3484f291f2f54.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/bajapovogam/63758564679.pdfIn PDF document text
    • https://9f5bcc56-a059-4f00-ae85-604acd6a3d2d.filesusr.com/ugd/ac9354_38e5eb4e0f7646d888b085774a20cb83.pdf?index=trueIn PDF document text
    • http://wonanikapudidak.atwebpages.com/dotututadawometajidiv.pdfIn PDF document text
    • https://6d428a25-da86-44fa-8f13-5b0f09742281.filesusr.com/ugd/3649d2_95442f153f324e5db56ba90400a55f55.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/jivuxo/consumer_report_best_compact_car_2015.pdfIn PDF document text
    • https://s3.amazonaws.com/limewub/nibasowor.pdfIn PDF document text
    • https://s3.amazonaws.com/fulosobezur/dagewabisane.pdfIn PDF document text
    • https://s3.amazonaws.com/dojivewobasuval/72485027774.pdfIn PDF document text
    • https://d99d9bf7-a5e0-49f2-90ac-0d1bc881463d.filesusr.com/ugd/0182ef_e824a46f05154483a82b6f9c117fb93c.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/kewakuko/table_saw_dewalt_dw7187.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://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f75b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF75B 5408 bytes
SHA-256: 03f17da94c9da2283440f716ccaf0ba28c32f61b075b7834c5676e80faac7727
font_01_sfnt_off00010991.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10991 2744 bytes
SHA-256: 868fe87e3fbddef701b083a4dc2bc26b577e7e4ed9735b00cbf69c546a8d3326
font_02_sfnt_off0001153c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1153C 10724 bytes
SHA-256: 55964eedeeca1e90667c5b282e0f34394aee8d74820bbdcec10953f6a2372869

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