Malicious PDF — malware analysis report

Static analysis result for SHA-256 7e7c0c5800d5edf1…

MALICIOUS

PDF

83.4 KB Created: 2021-03-29 08:06:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: b00b0796ffe9c4eeed4cc55b073698b9 SHA-1: 5a90b717e4e758644a349f27664c3e1dc91ab41b SHA-256: 7e7c0c5800d5edf1b73812ffea2aa1d816125600315865de8b7ff2d8f62f21b0
156 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and 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 0.9993

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 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://jumiwimov.ru/aws?utm_term=mary+poppins+songs+list PDF link annotation
    • http://smartradiobf.ru/how_to_use_hemani_pomegranate_oilgsy62.pdfIn PDF document text
    • https://piramejujidizek.weebly.com/uploads/1/3/4/6/134694247/fd7ab722f559.pdfIn PDF document text
    • http://stnold.com/physics_1_for_dummieslqbun.pdfIn PDF document text
    • http://rebelliona.online/anesthesia_managements_freehbv4w.pdfIn PDF document text
    • https://vezorobabuwej.weebly.com/uploads/1/3/0/9/130969079/275c4941bf.pdfIn PDF document text
    • https://ligumanu.weebly.com/uploads/1/3/0/7/130775644/f56e85e.pdfIn PDF document text
    • http://dokumenty-kiev.online/is_arris_a_good_router9ps28.pdfIn PDF document text
    • http://lovemecompletely.com/20461502134lnttt.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/mozedijiz/star_wars_cantina_band_flute_sheet_music.pdfIn PDF document text
    • https://s3.amazonaws.com/jukoxisojow/44761786112.pdfIn PDF document text
    • https://s3.amazonaws.com/pasawe/sadness_and_sorrow_naruto_sheet_music.pdfIn PDF document text
    • https://s3.amazonaws.com/xojafemori/dukesunemijub.pdfIn PDF document text
    • https://s3.amazonaws.com/subopukomanaw/44826401298.pdfIn PDF document text
    • https://s3.amazonaws.com/libosokune/zapukabis.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cdbc27e3-5462-49cf-b264-10041b8be48e/autocad_book_for_beginners_free_download.pdfIn PDF document text
    • https://s3.amazonaws.com/nerugiraxura/miracle_box_crack_2._92_free.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/818bab43-fd69-4ab0-9c51-2d6a23125899/does_fedex_need_a_phone_number.pdfIn PDF document text
    • https://s3.amazonaws.com/tuxexi/wunudopozaredeju.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9dede572-91d6-49d8-ad6c-3e1d525e24ec/ariston_margherita_2000_manual_romana.pdfIn PDF document text
    • https://s3.amazonaws.com/jupoti/lipawuwowo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ad17c70e-845e-4a4e-83eb-6bae78116db4/sutoroti.pdfIn PDF document text
    • https://s3.amazonaws.com/wifiduxezo/grinch_hour_of_code_answers.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f5686c64-0dbf-4f29-8924-3bb40b4afe85/what_happens_when_your_dryer_doesnt_dry.pdfIn PDF document text
    • https://s3.amazonaws.com/xalexojaxipud/dixofurafelogunakef.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

Related samples 8

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

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00010784.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10784 5092 bytes
SHA-256: 5e7425cc34a1cb5cb4221b6cccbe3a34a2dc0c93b3bd3c78904a03243acbb513
font_01_sfnt_off000118f8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x118F8 11964 bytes
SHA-256: 5bee972e5baa1926dbc5885a2f993c30d8efa7daecb5f4d32d4a120855a43e48

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