Malicious PDF — malware analysis report

Static analysis result for SHA-256 d2e7703cb53a2c3e…

MALICIOUS

PDF

79.3 KB Created: 2020-11-17 22:53:11 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 56c1d982bf1ef8e370de5820b715a4ef SHA-1: 956145c5ff8b111c14aa1337abeee8cb78fb9e33 SHA-256: d2e7703cb53a2c3ee8304372285d17c4613a5a43dfe92f220b7ef5a6d33b232c
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 0.9998

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://traffking.ru/123?utm_term=best+brown+mascara+ulta PDF link annotation
    • https://wuwilosuz.weebly.com/uploads/1/3/4/3/134394730/a1ddcf.pdfIn PDF document text
    • https://fasefipuronupa.weebly.com/uploads/1/3/4/4/134471496/6073601.pdfIn PDF document text
    • https://jonukejunuxesa.weebly.com/uploads/1/3/1/4/131409236/4957355.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/7eb4c1e2-264d-40bc-86ae-6127394573ac/fumukinip.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a4705f3e-94cc-4071-a9e6-fdd0101a8f2d/vetuvaduse.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8b569682-b26e-4cf6-82ac-344026615dea/ghs_bell_schedule.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f5fa4a25-bf54-4cf3-84a1-4d105f984d1b/selufojapo.pdfIn PDF document text
    • https://s3.amazonaws.com/bodepova/chapter_18_the_lightning_thief_summary.pdfIn PDF document text
    • https://s3.amazonaws.com/jakujakula/basketball_heads_championship_hacked.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3228356f-58c9-4183-97b4-fa0112d0237d/knights_of_columbus_regalia_change.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/eb878cac-3a6d-4508-9fa3-7e17c625e582/solution_menu_ex_driver_not_installe.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6aae2e63-992b-427e-a112-1464cbc6b6cb/forejiji.pdfIn PDF document text
    • https://s3.amazonaws.com/gateme/jubafojuzukilodunanewepav.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0a734a12-a672-4b7c-a1b0-54b73cd0a2a8/ive_got_you_under_my_skin_trumpet_sheet_music.pdfIn PDF document text
    • https://s3.amazonaws.com/suximawo/what_was_the_first_beyblade_show.pdfIn PDF document text
    • https://s3.amazonaws.com/napisakaluja/jijikusesaxanexerixeduv.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_off0000f8f1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF8F1 5228 bytes
SHA-256: ac08e005be1d398573f79b83456c098dfc1534eba94da5ab345da5274ede0c98
font_01_sfnt_off00010ab0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10AB0 11252 bytes
SHA-256: 34590c4d080dc72de7bb3b0529b74b2d6751cbfc6afa891054435c4f3997422d

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