Malicious PDF — malware analysis report

Static analysis result for SHA-256 506ebeec7f7e370c…

MALICIOUS

PDF

77.5 KB Created: 2021-02-28 06:42:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-12
MD5: 5227c71f6cdd5cb0b45ab06c20ba754f SHA-1: 057ac99d3acc22ff85333a47346cc63626ad0428 SHA-256: 506ebeec7f7e370c52c770a0d251dd2e41a2fc550ebedab4c4e45b616c314e95
156 Risk Score

Malware Insights

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

This PDF file was identified as malicious by a machine learning classifier and ClamAV, indicating a phishing or trojan threat. It contains a large number of external links, with one heuristic specifically identifying it as a 'PDF_SEO_LINK_FARM'. The primary URL, 'https://nipisod.ru/award?keyword=the+eye+of+minds+series+order', suggests a lure related to an order or award. While no scripts were explicitly extracted, the PDF structure and numerous external links point towards an attempt to redirect users to potentially malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://nipisod.ru/award?keyword=the+eye+of+minds+series+order PDF link annotation
    • https://cdn.sqhk.co/beledufe/gTVg9ig/car_crash_last_night_florida.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4446280/normal_600a1f270a1c1.pdfIn PDF document text
    • https://kuxodebareku.weebly.com/uploads/1/3/4/0/134042390/sijejawezegusojotefo.pdfIn PDF document text
    • https://cdn.sqhk.co/xajegakagiz/hb6hbjd/history_of_j-_pop_music.pdfIn PDF document text
    • http://kolagozisil.mywebcommunity.org/what_does_the_ending_of_a_long_way_down_mean.pdfIn PDF document text
    • https://cdn.sqhk.co/jeforije/dFghgcc/kid_rock_songs_northern_michigan.pdfIn PDF document text
    • https://bewosugug.weebly.com/uploads/1/3/0/8/130814774/zuxunozawitugen.pdfIn PDF document text
    • http://jesofoma.getenjoyment.net/boss_ve-20_vocal_processor_reviews.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4369491/normal_5fef665072140.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4487888/normal_60118de69f7c9.pdfIn PDF document text
    • https://dikekivex.weebly.com/uploads/1/3/0/7/130775400/xuxamusuzitugut.pdfIn PDF document text
    • https://disipewadapa.weebly.com/uploads/1/3/4/8/134870645/e93e6adff4.pdfIn PDF document text
    • https://nadagedo.weebly.com/uploads/1/3/1/8/131858166/9c1cb2da8afd4.pdfIn PDF document text
    • http://dalidusiz.mywebcommunity.org/44098426608.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/wemazun/mifesigozibupasajumap.pdfIn PDF document text
    • https://s3.amazonaws.com/jafujasiwetid/nasivediv.pdfIn PDF document text
    • https://s3.amazonaws.com/datarofapakil/metabolic_acidosis_treatment_guidelines.pdfIn PDF document text
    • https://s3.amazonaws.com/pegozegi/peritarimununivowidu.pdfIn PDF document text
    • http://gapoxuvopa.onlinewebshop.net/63156919365.pdfIn PDF document text
    • https://s3.amazonaws.com/faluzotixupi/video_cutter_online_free_without.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_off0000e725.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE725 4664 bytes
SHA-256: 12de159869f1acddb4d4d4427823952ac7cdef04624b02013908e4e33c870ee9
font_01_sfnt_off0000f6d1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF6D1 10336 bytes
SHA-256: 3425da5a11d509228f341238c03fde52ae4f7f99727e8fc32783ddd08d638f10
font_02_sfnt_off00011a4f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11A4F 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f

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