Malicious PDF — malware analysis report

Static analysis result for SHA-256 cec0fdb6da2ab632…

MALICIOUS

PDF

71.0 KB Created: 2021-02-14 23:13:58 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: b490b1cf1b2cd081e7bdb8b639ff7ae4 SHA-1: e656ed2086b731c8d6a4571252e9d557ef6c145c SHA-256: cec0fdb6da2ab632d2b2ce76bf465bc9c2e707fbcaf721d5a5178113a4e850e7
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • 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 is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://baarspo.ru/wix?keyword=star+ocean+integrity+and+faithlessness+strategy+guide PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4370525/normal_6028328baa1dd.pdfIn PDF document text
    • https://cdn.sqhk.co/biluvetizom/8jggczD/pekadake.pdfIn PDF document text
    • https://cdn.sqhk.co/miviterul/ZtBigha/insane_labz_slender_60_caps.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4482415/normal_5fced70e51d3e.pdfIn PDF document text
    • https://lekozeva.weebly.com/uploads/1/3/5/9/135964777/ac5b71d0ab04a9d.pdfIn PDF document text
    • https://dotomogef.weebly.com/uploads/1/3/4/7/134760479/70872.pdfIn PDF document text
    • https://cdn.sqhk.co/rureroso/j6ge491/minizosajebavuxeliw.pdfIn PDF document text
    • https://matigolexa.weebly.com/uploads/1/3/2/6/132682665/4996857.pdfIn PDF document text
    • https://mixenabunagoxo.weebly.com/uploads/1/3/5/3/135320093/04d091b72e49.pdfIn PDF document text
    • http://gadezobokonej.iblogger.org/42302635909.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4446035/normal_5feec804bbf3a.pdfIn PDF document text
    • https://cdn.sqhk.co/lewiwifo/1UHaieY/singing_lessons_for_adults.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4459623/normal_602076a7ead98.pdfIn PDF document text
    • https://cdn.sqhk.co/nananava/aKoogip/electric_circuit_examples_physics.pdfIn PDF document text
    • https://nakigere.weebly.com/uploads/1/3/4/6/134608851/2556029.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • http://tetexamafikej.epizy.com/farnborough_college_ofsted_report.pdfIn PDF document text
    • https://s3.amazonaws.com/xapidajovaji/papolokuna.pdfIn PDF document text
    • http://xefukogan.rf.gd/jukegorowirofegipeze.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_off0000cb29.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCB29 5368 bytes
SHA-256: 5649cc9b1e89bb8003c41ae7be23d05f51b7fc2c1d03993e386fae87dbeb69bd
font_01_sfnt_off0000dd55.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD55 10128 bytes
SHA-256: c92c5ac724e5d387dd85f175751b99f73f09c9c127f23f290e025fd73acc518a
font_02_sfnt_off00010010.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10010 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f