Malicious PDF — malware analysis report

Static analysis result for SHA-256 2706922562d00046…

MALICIOUS

PDF

72.0 KB Created: 2021-02-14 09:28:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-14
MD5: b02b7b825a0a3df408d695cfb136e82e SHA-1: 97724c1c9ed6e11b1677f07d154d283551caeacc SHA-256: 2706922562d0004684eba2508b4c332c6274c138c6af7198857c2f3d6436a9dd
156 Risk Score

Malware Insights

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

This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains a large number of external links, many pointing to other PDFs, suggesting a link farm or redirection mechanism. The primary URL, https://seumenha.ru/aws?utm_term=mehandi+circus+720p+hd+video+songs, appears to be a lure, while the numerous S3 bucket links and Weebly links are likely part of the malicious infrastructure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://seumenha.ru/aws?utm_term=mehandi+circus+720p+hd+video+songs PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4486051/normal_5ffeccc955bcb.pdfIn PDF document text
    • https://vipavogezeguw.weebly.com/uploads/1/3/1/0/131069860/5254251.pdfIn PDF document text
    • https://vozunekoba.weebly.com/uploads/1/3/4/9/134902797/4895176.pdfIn PDF document text
    • https://tisawisapapaw.weebly.com/uploads/1/3/5/3/135326074/dazuponowepekuna.pdfIn PDF document text
    • https://vavaterojitenoj.weebly.com/uploads/1/3/4/8/134898986/nuwiz_vudewivif_bafufu_potewe.pdfIn PDF document text
    • https://xozavefo.weebly.com/uploads/1/3/4/0/134018900/4064050.pdfIn PDF document text
    • https://viduturuv.weebly.com/uploads/1/3/6/0/136082320/xetosev-ditumetopizulu-dapuxuboxoboru-jadojopabotimiw.pdfIn PDF document text
    • https://wetugaremuzen.weebly.com/uploads/1/3/5/2/135298520/2819758.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4425916/normal_6019204b4a905.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4371543/normal_601e419c4f7ff.pdfIn PDF document text
    • http://fomirevadago.22web.org/n64_emulator_android_with_cheats.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4466661/normal_5fff9430894d8.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/bitizopovopaso/arpan_movie_all_songs.pdfIn PDF document text
    • https://s3.amazonaws.com/lixasifasi/80693709441.pdfIn PDF document text
    • https://s3.amazonaws.com/nitajosasa/chori_chori_chupke_chupke_song_mp4.pdfIn PDF document text
    • https://s3.amazonaws.com/xamibebulosaxug/sejatunokesip.pdfIn PDF document text
    • https://s3.amazonaws.com/baxunaf/placenta_function.pdfIn PDF document text
    • https://s3.amazonaws.com/juvosi/monurogutowujedowexaludar.pdfIn PDF document text
    • https://s3.amazonaws.com/tirimofufemukat/funny_jokes_with_answers_for_adults.pdfIn PDF document text
    • http://wedizakur.epizy.com/xiliwisilejixorawajitil.pdfIn PDF document text
    • https://s3.amazonaws.com/tigovatolis/97477496889.pdfIn PDF document text
    • https://s3.amazonaws.com/vogubivajavofu/27270463767.pdfIn PDF document text
    • https://s3.amazonaws.com/tuxenipup/nutrition_information_eggplant_parmesan.pdfIn PDF document text
    • http://dizakopalelur.epizy.com/59672102950.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_off0000da58.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDA58 5724 bytes
SHA-256: e17a170633b9978d16f32bb2b458aa3a219ffe696d05e11ff1aa168abe1b2a03
font_01_sfnt_off0000edef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEDEF 10856 bytes
SHA-256: 615bbd83c74855227c815c2ce9fdcc95e9434324cdefd2235d1660b6d68466aa

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