Malicious PDF — malware analysis report

Static analysis result for SHA-256 fd3216138c69e5cf…

MALICIOUS

PDF

68.2 KB Created: 2021-02-17 21:15:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 940e592c0ed6086e76bc033b9f06c989 SHA-1: f18572cca38a725acd21668b65e2bb1602b5b341 SHA-256: fd3216138c69e5cfa2144b45d57ab6d07c6796613af1ff2ec5ea9bbbb75bb256
156 Risk Score

Malware Insights

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

This PDF file was identified as malicious by ML classifiers and ClamAV, flagging it as a phishing trojan. The heuristic 'PDF_SEO_LINK_FARM' indicates the presence of numerous external links, suggesting a tactic to distribute malicious content or manipulate search engine results. While no scripts were explicitly extracted, the PDF structure and embedded links point towards a phishing or malicious content delivery attempt, likely initiated via a spearphishing attachment.

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://leonvi.ru/aws?utm_term=scott+manual+bird+launcher+uk PDF link annotation
    • https://gomepenet.weebly.com/uploads/1/3/0/8/130874128/zuvuwowaro-kijodifamedepi-fefuke-roxenej.pdfIn PDF document text
    • http://tojumuwuluso.iblogger.org/critical_ops_apk_obb_mod.pdfIn PDF document text
    • http://menozamula.22web.org/91341127399.pdfIn PDF document text
    • https://lifalaril.weebly.com/uploads/1/3/4/8/134883644/bevepudakobabis.pdfIn PDF document text
    • https://vewominejijisos.weebly.com/uploads/1/3/6/0/136053907/tadolego.pdfIn PDF document text
    • https://cdn.sqhk.co/karelevo/idQMgej/130773856.pdfIn PDF document text
    • https://gedikorewugeg.weebly.com/uploads/1/3/0/7/130775309/nefawaropeki-velujejelid.pdfIn PDF document text
    • http://kprovk.xyz/nations_in_combat_apk_1._3._2elbwg.pdfIn PDF document text
    • http://1xbet-registr.site/pelicula_mas_alla_de_los_sueos_en_espaolxvxxs.pdfIn PDF document text
    • https://famutogerene.weebly.com/uploads/1/3/4/6/134688643/najufemovetuvetofa.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/janodojivi/hindu_calendar_2019_lala_ramswaroop.pdfIn PDF document text
    • https://s3.amazonaws.com/woneketelak/lajejijid.pdfIn PDF document text
    • https://s3.amazonaws.com/kifutizijebuj/zibokerit.pdfIn PDF document text
    • http://jominata.rf.gd/a5_booklet_templates_word.pdfIn PDF document text
    • https://s3.amazonaws.com/gapivegek/apple_mobile_device_support_service.pdfIn PDF document text
    • http://dorizoki.rf.gd/44909892806.pdfIn PDF document text
    • https://s3.amazonaws.com/gopifu/hd_movies_apps_for_android_phone.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000be0b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBE0B 5192 bytes
SHA-256: 70906f92d3ba62f85cc30ff4a7ec193c7f5f0ebcc8fa7a8fb553c20d3b6454a7
font_01_sfnt_off0000cf6c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCF6C 10888 bytes
SHA-256: ccb13a02dd72406a7d4e449b675fac295c092ed6adcd838d70b319cd6ff0ca2d
font_02_sfnt_off0000f459.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF459 4324 bytes
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333

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