Malicious PDF — malware analysis report

Static analysis result for SHA-256 47937336c3f0c0a3…

MALICIOUS

PDF

73.5 KB Created: 2021-03-05 22:52:06 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: baa4bfbf10ae2560556644fb45d7db25 SHA-1: 2bc81f9d672e6047a6939c50eb9cec04a8d98b9f SHA-256: 47937336c3f0c0a3de5bcc5076f03016fec3a7c732aea3e1339cb9d19c25b8b6
126 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

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 0.9997

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://xajibur.ru/wix?keyword=kite+fighting+rules PDF link annotation
    • https://cdn.sqhk.co/rivojotewez/hCnigvX/gapeliwavatiditoludebu.pdfIn PDF document text
    • https://cdn.sqhk.co/mojuzizimu/bhhPeck/detokejefavojelidi.pdfIn PDF document text
    • http://debopuforu.22web.org/fajun.pdfIn PDF document text
    • http://thailandlove.site/why_is_my_kodak_printer_printing_blank_pagesswq1e.pdfIn PDF document text
    • https://cdn.sqhk.co/fezivabuja/WCgc4dW/chronoblade_apk_obb_download.pdfIn PDF document text
    • http://leqqurint.online/how_to_find_the_measure_of_an_interior_angle_of_a_parallelogram1d1ih.pdfIn PDF document text
    • https://cdn.sqhk.co/puzadowoke/hfereha/79350292418.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/77ee3dd1-9adf-4305-b470-f3f85c2de219/68218583844.pdfIn PDF document text
    • https://c03439ef-6557-4199-865e-586791a52b6c.filesusr.com/ugd/6bb4a2_70d0e3c843f148e98b86edda2f13f7d0.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/xamapebonijos/mofofurija.pdfIn PDF document text
    • http://sonogobujajeva.rf.gd/24189927314.pdfIn PDF document text
    • https://27420876-d215-4860-9a72-f48db0d0c320.filesusr.com/ugd/4062c2_d039b3eaf05c4502a96c44044aa1e128.pdf?index=trueIn PDF document text
    • http://levolavajoji.epizy.com/52997342865.pdfIn PDF document text
    • https://c064424b-11a8-4e39-a524-24a74bcd733d.filesusr.com/ugd/54e393_f2cdd41bac65420390d331a46a65084c.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/dusubonifu/jelukawugifiritunisaxa.pdfIn PDF document text
    • http://kexeban.rf.gd/16872584748.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/caa2a705-c06c-45dc-b30a-8605bba7d80a/mozewobemeberakag.pdfIn PDF document text
    • https://s3.amazonaws.com/xokebore/90223357246.pdfIn PDF document text
    • https://64b67c6e-fbbd-4787-add8-9ed3e274c95c.filesusr.com/ugd/eb6612_b197bbb9f5c741f6b1ce77cdbfa68772.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/a83eefd6-b5b1-4e81-9831-3c0b855a02c7/bosigokesudez.pdfIn PDF document text
    • https://76c9fb28-c10e-4950-85be-37de24a2ede8.filesusr.com/ugd/fa32a6_d7631c61eaf3481f8b52262ad82957be.pdf?index=trueIn 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_off0000e323.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE323 4788 bytes
SHA-256: e65c91ffe6bd2080f0cc56e173b4615718b3e7b165cd6b18e9ace7d10f704e6e
font_01_sfnt_off0000f377.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF377 10996 bytes
SHA-256: f42fbd43a689df2cfb233691e87df526db2c78ed874c50686cc7d0d1ee098d97

Open this report in the interactive analyzer, or submit your own file for analysis.