Malicious PDF — malware analysis report

Static analysis result for SHA-256 176a3088dafc780c…

MALICIOUS

PDF

47.0 KB Created: 2020-10-26 18:58:57 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-14
MD5: 78c5bca3f746484406abac3e3f8d20cf SHA-1: 3484926b2380af97ac5f1ccf5b92ad635c8c9710 SHA-256: 176a3088dafc780cee187f5f5f8bbafc169e6f44f53366d6625860c6dfb64967
154 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a link to a known malicious redirector, indicating an attempt to lead the user to a malicious site. The document body, though heavily obfuscated, contains text that appears to be a lure related to 'Fantastic Mr. Fox streaming'. The presence of numerous external PDF links further suggests a link farm or redirection scheme.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://gettraff.ru/strik?keyword=fantastic+mr+fox+streaming In PDF document text
    • https://rimosuvifakub.weebly.com/uploads/1/3/4/3/134310068/4450418.pdfIn PDF document text
    • https://xexovelez.weebly.com/uploads/1/3/0/8/130813416/7443485.pdfIn PDF document text
    • https://woliwejimagevin.weebly.com/uploads/1/3/4/3/134319070/fevowugipaw.pdfIn PDF document text
    • https://naxedomabaxa.weebly.com/uploads/1/3/1/6/131606472/xikesusar-konupoputegosav-kiwizazej.pdfIn PDF document text
    • https://moxitasa.weebly.com/uploads/1/3/1/4/131454719/jidukupoxepexog.pdfIn PDF document text
    • https://rabexowubomisuw.weebly.com/uploads/1/3/1/4/131407155/tudibesepoma_megite_vowewo_bojejomagujalox.pdfIn PDF document text
    • https://fekudumubaf.weebly.com/uploads/1/3/2/6/132681201/d54f4d96cedca1.pdfIn PDF document text
    • https://tipefejiri.weebly.com/uploads/1/3/0/9/130969755/koremewazenu-geginixer-dukoketuvaverux.pdfIn 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/0e63e1c8-ca49-459f-a3fb-0910f3eb6bb9/pasamude.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8c8a688a-c469-48de-b5b6-60c9069c2778/wopilaxisisifusef.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/dff9b5ac-8a90-4014-acfa-2bcaad9b57d2/65158325997.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0481/5015/1329/files/5_love_languages_test_for_child.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7777/7061/files/how_to_upload_image_using_retrofit_android.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0266/8124/5879/files/wow_balance_druid_pve_guide_5.4.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0501/8458/5406/files/79674312334.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0504/0698/1830/files/eugenie_grandet_de_balzac.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9f8f5634-4fed-41be-9980-6bfc7c7b7f6d/david_freedman_robert_pisani_roger_purves_statistics.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/eb581b0b-cbd8-4820-95a3-224d3a30a624/zinavefunitakewimojap.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0484/4109/8398/files/wimeranixajatikar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0481/6348/7897/files/the_language_of_composition_2nd_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0484/9929/4363/files/waluzowipagumajadu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7527/2855/files/rbi_baseball_19_android_review.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_off0000769d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x769D 5192 bytes
SHA-256: a6ce1093003eb93d5e8036ff44995febeb94cde9224aa14e5d102175ff85d9f9
font_01_sfnt_off00008838.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8838 11116 bytes
SHA-256: 8083b2b9bd86d055c0e647a1c0659729627150a7bc45aef27a8d216ea9e3419b

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