Malicious PDF — malware analysis report

Static analysis result for SHA-256 ce79ec8066b14e40…

MALICIOUS

PDF

88.4 KB Created: 2021-06-05 02:05:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 2c71b44ea5f20732e15adcd3bdd5820e SHA-1: b1f507a040166d7db613323a4fbbc5c731e3d048 SHA-256: ce79ec8066b14e40d42b8f1f1811a8c0a5c8be140df3308b193d5419d8cec5f5
156 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF contains a significant number of external links, identified as a 'PDF_SEO_LINK_FARM' heuristic, suggesting an attempt to direct users to potentially malicious or deceptive websites. The presence of a URL pointing to 'kuzutuzo.ru' with search terms related to pirated movies further supports a phishing or malicious redirection motive. ClamAV also detected this file as 'Pdf.Phishing.Trojan'.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://kuzutuzo.ru/123?utm_term=aambala+tamil+movie++tamilrockers.+gr PDF link annotation
    • https://dexekuweda.weebly.com/uploads/1/3/4/7/134705305/raxevopegidovugemotu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4501501/normal_6019be09c6190.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4467979/normal_601f3276b4b84.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4465393/normal_600c883c8c08d.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4445869/normal_5fee3ae68ceb1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369520/normal_6017b0b43d2fc.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4495413/normal_60201a1dd735e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4496812/normal_60599185a3ceb.pdfIn PDF document text
    • https://jixawapideraje.weebly.com/uploads/1/3/3/9/133997308/6096864.pdfIn PDF document text
    • http://fedorahosted.org/lohitIn 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/7db0d529-4871-4371-b7d3-d8830327a524/mawaruk.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/89c20519-7253-4334-8d01-6ff5f7b1c7c1/62208799005.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c2034054-d0c4-4cee-9ae1-2ff90e17113e/financial_accounting_tools_for_business_decision_making_7th_edition.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4e2a561b-8a62-4639-9e23-cbceccfe188c/how_to_swing_trade_amazon_stock.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/160fd696-a617-45a1-b155-e05dd6b4f95e/how_do_i_program_my_directv_remote_to_my_audio_receiver.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4f8decea-09dd-428f-862b-bcfeee8c44e6/how_to_use_elgato_capture_card_on_xbox_one.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5e4dce6a-9701-4b90-a340-fd2739b5d5c7/xafowobefabosumedasojedaf.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 7

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00010a8e.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x10A8E 3572 bytes
SHA-256: d878ad1eda93d8bff5998932762ff29f068b4f97138b684301e144a97064adac
font_00_sfnt_off0000f83d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF83D 5404 bytes
SHA-256: 4351ce5270f390cd7ff05702d886bea5cd53c6ad476c07a5e9bc1a2897f906c5
font_02_sfnt_off000117fa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x117FA 11412 bytes
SHA-256: 4adb2cd1872979d34af2f0df84c69e33f6deac6ddbc2e0f576d65d0845529621
font_03_sfnt_off00013ed1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13ED1 16124 bytes
SHA-256: 49befb9005bc29f8750949af7140059d368820fd75e3f196fee35d26d8d88b46

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