Malicious PDF — malware analysis report

Static analysis result for SHA-256 770600a1ab647292…

MALICIOUS

PDF

72.2 KB Created: 2021-02-26 07:48:53 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: ed11c7afff298877a977185e1c000bbd SHA-1: 63b01f47657bd2359fe1c6a201d0fce1308e61bf SHA-256: 770600a1ab6472927f7dffc50a6c47759d50d4eb1b9cbda2a402ae54d195f39f
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://seumenha.ru/award?keyword=how+to+clean+carburetor+on+husqvarna+tiller PDF link annotation
    • https://kojelujozifani.weebly.com/uploads/1/3/1/8/131856125/0bac1db58.pdfIn PDF document text
    • http://rumurel.mywebcommunity.org/suretedunanavu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383681/normal_5fdc6e2879264.pdfIn PDF document text
    • https://cdn.sqhk.co/dimowitop/xficjih/ninitadupon.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4527859/normal_5ff038d2c11bb.pdfIn PDF document text
    • https://cdn.sqhk.co/mibemofega/gduVYa7/5_classic_table_tennis_mistakes.pdfIn PDF document text
    • http://tevutubiwij.getenjoyment.net/the_white_princess_episode_5_trailer.pdfIn PDF document text
    • https://cdn.sqhk.co/vimewiki/BHgj0gh/mermaid_straw_cup.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4500679/normal_5fc8888b1bc42.pdfIn PDF document text
    • https://buzegiregusa.weebly.com/uploads/1/3/6/0/136082094/59147481b.pdfIn PDF document text
    • https://jotozured.weebly.com/uploads/1/3/4/5/134588142/filasomovona.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/zobuwubedak/12722710882.pdfIn PDF document text
    • https://s3.amazonaws.com/rizezobabub/cavernous_transformation_porta_hepatis_ultrasound.pdfIn PDF document text
    • https://s3.amazonaws.com/xamapebonijos/acer_aspire_a315-_31_driver.pdfIn PDF document text
    • http://zesafemumibow.myartsonline.com/how_to_use_pictochat_on_ds_lite.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_off0000de86.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE86 5268 bytes
SHA-256: d1699b967e4c99cfbfcb52fe551cbab7558410632956e24fc6585bf885b008b2
font_01_sfnt_off0000f080.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF080 10404 bytes
SHA-256: 570eb3431c7a2bd3f2fea1a7398a1d6647af6b4a083c64bf3ef35750d16db4c4