Malicious PDF — malware analysis report

Static analysis result for SHA-256 dbdcd65e5e0d0883…

MALICIOUS

PDF

68.1 KB Created: 2021-02-17 10:03:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: eb7eae447ac572e4694e96f0c1043714 SHA-1: 95a766a530442f260edb0ca9ceb37833a299e9a1 SHA-256: dbdcd65e5e0d0883afed0af68befdf90c039d265456ae66feace68df96fc1ab1
216 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 7

  • 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.
  • QR-code redirect lure medium SE_QR_LURE
    Document instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
  • 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://jottigo.ru/wix?keyword=la+pavoni+paris PDF link annotation
    • https://maraliva.weebly.com/uploads/1/3/2/7/132712127/tikoma_sepawazewujo_banazusuja.pdfIn PDF document text
    • https://valuzobuxile.weebly.com/uploads/1/3/2/7/132711949/2de3ab1353.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4458849/normal_5ff24b315b988.pdfIn PDF document text
    • https://buvekidi.weebly.com/uploads/1/3/0/7/130775196/wijivazekaguweterek.pdfIn PDF document text
    • https://dojibabebane.weebly.com/uploads/1/3/2/6/132682208/vabokuturisenilepa.pdfIn PDF document text
    • https://losaburi.weebly.com/uploads/1/3/5/3/135322327/451bfbb50710877.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4448976/normal_5fce5eb8abb02.pdfIn PDF document text
    • https://dugeditukuvil.weebly.com/uploads/1/3/4/7/134723955/zegamonogodab.pdfIn PDF document text
    • https://motapesuna.weebly.com/uploads/1/3/4/7/134749044/xinuto-turemoxu-tagimuri.pdfIn PDF document text
    • https://fexagire.weebly.com/uploads/1/3/0/7/130775556/6463087.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4371509/normal_5fe4f5f143257.pdfIn PDF document text
    • https://xezelugewopisaw.weebly.com/uploads/1/3/5/3/135311865/ravoxizuneki-depuxapikomi.pdfIn PDF document text
    • https://tapebosipufadiz.weebly.com/uploads/1/3/4/3/134366988/76272.pdfIn PDF document text
    • https://lexawuvake.weebly.com/uploads/1/3/4/6/134610488/9156504.pdfIn PDF document text
    • https://miwunukeje.weebly.com/uploads/1/3/4/5/134524605/ratefuzudupopev.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/jeworurowam/lafiresewegezirak.pdfIn PDF document text
    • https://s3.amazonaws.com/domegagowevag/58520278818.pdfIn PDF document text
    • https://s3.amazonaws.com/fejakixoweka/20724504988.pdfIn PDF document text
    • https://s3.amazonaws.com/wutezigojuxi/janerinopole.pdfIn PDF document text
    • https://s3.amazonaws.com/dumupa/mastering_chemistry_homework_answers_chapter_6.pdfIn PDF document text
    • https://s3.amazonaws.com/dogevazapiwediw/escape_room_mystery_level_43_answer.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_off0000cde6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCDE6 4780 bytes
SHA-256: 80bb36d6b8001a0a6316b3a23d9ad262214bab85954df255e0cdca48f902ab98
font_01_sfnt_off0000de42.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE42 11464 bytes
SHA-256: 10adb07df5066fbc4605b3be4e4d67fe0033ab93fe04a30991a661ebe7cac07d