Malicious PDF — malware analysis report

Static analysis result for SHA-256 1b9e6a563c8334bc…

MALICIOUS

PDF

76.2 KB Created: 2021-04-02 04:10:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-20
MD5: 01d263c11fc27f37dbd349e39eb6a1a0 SHA-1: 1e9bcfa288ecf511b030975d9a1f11152666f6ba SHA-256: 1b9e6a563c8334bc6d989ccf6836ca60a00d26c81d033d9ebb448804a032641a
156 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded external links, many of which point to potentially malicious domains, as indicated by the PDF_SEO_LINK_FARM heuristic. While the document body is heavily obfuscated, the presence of numerous links suggests an attempt to redirect users to malicious sites for further exploitation. No scripts were extracted, but the PDF structure itself is indicative of a link farm or phishing attempt.

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://fipakitifenilab.weebly.com/uploads/1/3/4/0/134042330/1805846.pdf In PDF document text
    • http://storeeuro.info/how_to_insert_bobbin_singer_sewing_machinezk1y7.pdfIn PDF document text
    • http://uscovidcharts.com/18823735681llp65.pdfIn PDF document text
    • https://kiloxuloje.weebly.com/uploads/1/3/5/3/135398856/265ffc7083fc4.pdfIn PDF document text
    • https://ropugobefele.weebly.com/uploads/1/3/4/4/134445072/fonaluf-dudego.pdfIn PDF document text
    • https://gapuropiti.weebly.com/uploads/1/3/2/7/132740804/mogoravi.pdfIn PDF document text
    • http://titanof-filtr.ru/the_son_of_neptune_back_coveripm3c.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://feedproxy.google.com/~r/wb/ENAH/~3/o_fyKxYoRT8/wb?keyword=how%20to%20find%20velocity%20and%20acceleration%20given%20positionPDF link annotation
    • http://lesexugisitu.rf.gd/12389694156.pdfIn PDF document text
    • https://s3.amazonaws.com/nuvukivaxiren/bwssb_recruitment_2018_notification.pdfIn PDF document text
    • https://s3.amazonaws.com/kotodur/35875018998.pdfIn PDF document text
    • https://s3.amazonaws.com/polexebuj/97734020887.pdfIn PDF document text
    • https://s3.amazonaws.com/baxunaf/avira_phantom_vpn_pro_mac.pdfIn PDF document text
    • https://s3.amazonaws.com/pirosisob/how_to_reset_smart_drive_camera.pdfIn PDF document text
    • https://s3.amazonaws.com/xamibudasagas/sevisanukew.pdfIn PDF document text
    • https://s3.amazonaws.com/suxugipipolazog/pogudivakuwogexejemikew.pdfIn PDF document text
    • http://lirepotinemos.rf.gd/xodavomafekufizeborafatub.pdfIn PDF document text
    • http://zirofasorajama.epizy.com/ravaxobixelupojexejaged.pdfIn PDF document text
    • https://s3.amazonaws.com/zerepuzuze/constitutional_convention_word_search_puzzle_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/xasovewipeje/ultimo_edital_da_prf.pdfIn PDF document text
    • https://s3.amazonaws.com/lopeteb/83812025253.pdfIn PDF document text
    • https://s3.amazonaws.com/tubupejevomo/pelukugolodugatijuga.pdfIn PDF document text
    • https://s3.amazonaws.com/ninazarila/65175649390.pdfIn PDF document text
    • https://s3.amazonaws.com/sivanira/migovadefomogep.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_off0000e974.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE974 5540 bytes
SHA-256: 732b6ab5952c102ce17fcd96e0dbd01e5aa1b6285cdbed242a89e6544ae335c1
font_01_sfnt_off0000fc79.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFC79 11248 bytes
SHA-256: c70a8c98a7c50317bb84209937e7daaa210b3ddaa86779589f08691c4e4d52eb

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