Malicious PDF — malware analysis report

Static analysis result for SHA-256 97fe0d9bb2c2a097…

MALICIOUS

PDF

73.1 KB Created: 2021-03-28 01:14:51 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 50c58a45d28cbd797d61afbf02d02d17 SHA-1: 69961b2fdd93383227baad830a23916bfaf68de3 SHA-256: 97fe0d9bb2c2a09767f93247f6d03ccd7c806e3ed30025d066cecfa3139b7b53
196 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

Heuristics 6

  • 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.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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://bologen.ru/wb?keyword=hx%20stomp%20power%20supply%20alternative PDF link annotation
    • https://zaketedojerobi.weebly.com/uploads/1/3/6/0/136023974/ledanemuk_pizegejunetoz_tunipek.pdfIn PDF document text
    • http://miworusak.iblogger.org/carole_tuesday_soundtrack.pdfIn PDF document text
    • https://kokozorakozuwel.weebly.com/uploads/1/3/0/7/130775651/rugipunumalona.pdfIn PDF document text
    • http://damewonuseba.sportsontheweb.net/avivamiento_de_gales.pdfIn PDF document text
    • http://datujizid.iblogger.org/what_were_maya_angelous_accomplishments.pdfIn PDF document text
    • https://tidepobowajaxuk.weebly.com/uploads/1/3/0/8/130814761/popiketis-megotapezifa.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://a179b4bb-f9e1-4b0b-8685-f881d2afde68.filesusr.com/ugd/0fdb6d_251d2af79cb7455fb8ff42df02a08bbd.pdf?index=trueIn PDF document text
    • https://874c0fd6-92eb-497b-905f-dc7ca4d2e287.filesusr.com/ugd/5ca7d4_1cf144f292a54d3b8bc156712c9d44ce.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/kukazowox/15585171958.pdfIn PDF document text
    • https://s3.amazonaws.com/ravuxudibure/63027294871.pdfIn PDF document text
    • https://s3.amazonaws.com/padosumifubobo/2118567097.pdfIn PDF document text
    • https://94aa8f26-b07a-4c24-bdb4-4112657565c9.filesusr.com/ugd/37428b_9c013e52da4f44adb2a445e99d444ffb.pdf?index=trueIn PDF document text
    • https://4454cc88-256b-48ad-9013-c0414c72072d.filesusr.com/ugd/67e251_73c03d50eda740b4a02e0f80f09d3fd1.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/vufupu/zofibasixutejumemus.pdfIn PDF document text
    • https://s3.amazonaws.com/zomuzigo/pop_warner_scholar_forms.pdfIn PDF document text
    • https://2a4065d7-883d-43e8-a524-7ce9aa4b4e88.filesusr.com/ugd/ccb1c6_271cbf464684494383019f10bf1672a1.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/rabewiruzitewa/sublime_format_xml.pdfIn PDF document text
    • http://vajapojaperusu.myartsonline.com/alagappan_medicine_7th_edition_free_download.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_off0000e1c7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE1C7 5248 bytes
SHA-256: 27471403bffd014f1eb64afe7b4ed48e707e13fa11720cc2af2d5f9fe426553a
font_01_sfnt_off0000f39d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF39D 10596 bytes
SHA-256: 0b81ea70a1144ee9aabe520987e70433f3bb6ba510d1abfbb1c6981d4e72acef

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