Malicious PDF — malware analysis report

Static analysis result for SHA-256 d23e98d11a6e16ad…

MALICIOUS

PDF

104.8 KB Created: 2021-05-20 02:22:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 0236da55b530e2240bb0377ee564518c SHA-1: 80425e98a32b7fb20f25ec3ac148de9ea1b6dc0a SHA-256: d23e98d11a6e16ad8142790663c176704751f484ad86ee5ce95f70b5cd271e6a
156 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9947

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://baarspo.ru/strik?utm_term=pokemon+emerald+hack+with+gen+8 PDF link annotation
    • https://vuzozemipasu.weebly.com/uploads/1/3/6/0/136051601/5bbb5be87905.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4480145/normal_6030142fcc926.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383577/normal_606e0055c83df.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4459057/normal_6023f400c940f.pdfIn PDF document text
    • https://rixagaxovexi.weebly.com/uploads/1/3/4/0/134000332/likilelijek.pdfIn PDF document text
    • https://josuriwomevopi.weebly.com/uploads/1/3/4/7/134769094/zujolerugojetokemeb.pdfIn PDF document text
    • https://tonudekosinin.weebly.com/uploads/1/3/4/6/134685286/powumetonon_pilanibuxavutuv.pdfIn PDF document text
    • https://mirodogewe.weebly.com/uploads/1/3/4/8/134861862/zezafekibipivem.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://uploads.strikinglycdn.com/files/460e1d61-0d05-4f5f-acf5-abe83eca03e3/83997286314.pdfIn PDF document text
    • https://s3.amazonaws.com/vifusupegiza/arduino_uno_pin_details.pdfIn PDF document text
    • https://s3.amazonaws.com/jedadokuti/98635955618.pdfIn PDF document text
    • https://s3.amazonaws.com/wujapu/26715298667.pdfIn PDF document text
    • https://s3.amazonaws.com/dovulavavo/99620301103.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cba3a1aa-41a3-4ada-a87b-24ac864cbb89/72476557726.pdfIn PDF document text
    • https://s3.amazonaws.com/lixasifasi/benenupituni.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/72391b63-7488-4ca2-813b-d772e5fe3fd3/twilight_1_full_movie_download_in_hindi_dubbed_480p.pdfIn PDF document text
    • https://s3.amazonaws.com/boxujetanonikuv/reset_epson_artisan_1430_waste_ink_pad_-_free_download.pdfIn PDF document text
    • https://s3.amazonaws.com/legobegutulo/rowenta_steam_iron_cleaning.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/31cb2ecf-72ec-454a-88de-841c485be8d0/el_juego_del_angel_carlos_ruiz_zafon_resumen.pdfIn PDF document text
    • https://s3.amazonaws.com/banula/restaurant_business_plan_template_south_africa.pdfIn PDF document text
    • https://s3.amazonaws.com/zarelusipofox/spectra_manual_breast_pump_review.pdfIn PDF document text
    • https://s3.amazonaws.com/fonibinaraj/all_computer_word_full_form.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e5f7bdc6-c906-41e4-b31e-0c31689f5604/lenuwusuwako.pdfIn PDF document text
    • https://s3.amazonaws.com/kafises/honda_gc190_pressure_washer_engine.pdfIn PDF document text
    • https://s3.amazonaws.com/wipotegadodorek/rizigukegekojev.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
    • https://savannah.gnu.org/projects/freefont/In PDF document text
    • http://www.gnu.org/licenses/In PDF document text
    • http://www.gnu.org/copyleft/gpl.htmlIn 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 8

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

Full JSON: related samples API

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00010372.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10372 6588 bytes
SHA-256: 4e1a9c4cb32f1bc4ff176ae4dc1460c31b2d267bf2def0252f23ad2731e7be72
font_01_sfnt_off000113eb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x113EB 5312 bytes
SHA-256: ffa77fcfa6de29569cd766f6d5cf8220c1523284ab696a76cf8b423f068726a5
font_02_sfnt_off000125ca.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x125CA 8072 bytes
SHA-256: cf894c5c318147636816bae11233eb73c448be63b0a5dcf68d49badf3b67f065
font_03_sfnt_off000140f6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x140F6 11696 bytes
SHA-256: f4396a74dfe49dfe105db322ff2e675d20ae928293946c9968c3bcf26ccfbe03
font_04_sfnt_off000168cd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x168CD 18400 bytes
SHA-256: e4adce8b4ed7c7e8a7304f7dd907d9ae3a2ad7f06c7a19a8012908793a71a972
font_05_sfnt_off000183e9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x183E9 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176

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