Malicious PDF — malware analysis report

Static analysis result for SHA-256 2465af94d8987f9b…

MALICIOUS

PDF

67.8 KB Created: 2021-03-04 16:04:06 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: adbc098025f67ff614f541407b0f7aa7 SHA-1: 00d54d3318af1187f471bef80218281750635492 SHA-256: 2465af94d8987f9b4a4cf33de45c19e37d86fb53c806e5372ea2aeab40d64608
196 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9956

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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://gimoguvi.ru/award?keyword=agm+battery+tender+harbor+freight PDF link annotation
    • http://vawurabel.mygamesonline.org/honeywell_wi-fi_7-day_programmable_thermostat_rth6580wf_manual.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374976/normal_5fd5f3e798035.pdfIn PDF document text
    • http://gojavodevagajuw.mygamesonline.org/14811674246.pdfIn PDF document text
    • http://xatakafigudu.getenjoyment.net/what_does_the_christmas_tree_in_a_dolls_house_symbolize.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4422385/normal_6006b92456268.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4409425/normal_603ab69981dda.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4498983/normal_5fef37b91cbc9.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4459791/normal_5fe55aead5657.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://nakeviw.myartsonline.com/fukifalereniliw.pdfIn PDF document text
    • https://s3.amazonaws.com/numegubowalonan/chunari_chunari_song_mp.pdfIn PDF document text
    • https://4b3b4da4-1145-40fd-8a04-0ac29766dab0.filesusr.com/ugd/6c6203_2542ab0d98064b7a8b5293ff218dd05e.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/bezutu/orlando_virginia_woolf_short_summary.pdfIn PDF document text
    • https://s3.amazonaws.com/ganubifirigevi/dalibomejijuxakasemun.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7ffbe6a0-94e2-4bcb-96e7-32f03939cb6f/meteguxixidavomopax.pdfIn PDF document text
    • https://s3.amazonaws.com/tutasujal/15721879573.pdfIn PDF document text
    • https://s3.amazonaws.com/gagotaniwipure/70184941256.pdfIn PDF document text
    • https://s3.amazonaws.com/legipalofi/1008_names_of_lord_vishnu_english.pdfIn PDF document text
    • http://sawesupunozigiv.atwebpages.com/226797496.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7bdd2261-91d1-4ed3-94de-ba70e9dab906/how_to_write_differences_essay.pdfIn PDF document text
    • https://f61a8d15-835b-4c36-a3db-e4ead73ab13f.filesusr.com/ugd/e9f5f3_0c848062f393472b8df05cd718031802.pdf?index=trueIn PDF document text
    • https://e57d8632-f742-4524-ada6-9cdf759d9f13.filesusr.com/ugd/b0cb2d_d333482f31c74f1dbd773cb88c7ca1cd.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/kotodur/raxelelegijoleve.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/50beb28d-66dc-4166-b332-c310a79167c6/how_to_stop_call_forwarding_on_iphone_8.pdfIn PDF document text
    • https://s3.amazonaws.com/gazijewevan/51729887637.pdfIn PDF document text
    • https://s3.amazonaws.com/fidefofudi/jamadobonasosuje.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d56d9b2f-d1ef-48b5-9f0a-f481ecbebb65/what_is_realtek_high_definition_audio_driver.pdfIn PDF document text
    • https://s3.amazonaws.com/midaguvimabof/73471522042.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000cea1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCEA1 5340 bytes
SHA-256: bb68f4edf772d23110cb874c247dcc6569c4a5ea7a0a43559fc035610ed008ec
font_01_sfnt_off0000e0ad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE0AD 9644 bytes
SHA-256: 7a158da65c206339cf600cdac98b89f9115e5f0c63e4698616b3ed0c61116649