Malicious PDF — malware analysis report

Static analysis result for SHA-256 7b1d986cfd1a0922…

MALICIOUS

PDF

74.7 KB Created: 2021-02-25 10:53:41 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 01498980bf324b44ab5fe36e54073170 SHA-1: fa27e9bc28b707c8765996ec30812fed70e08b73 SHA-256: 7b1d986cfd1a092219d1cb3c26196f0ea90311742b649f893be7c99fb5467ea6
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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 is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://druttle.ru/wb?keyword=arrl%20general%20class%20license%20manual%209th%20edition%20pdf%20download PDF link annotation
    • https://cdn.sqhk.co/nizekidido/dhjxghf/archer_season_11_episode_3_release_date.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4407784/normal_5fcff2ee54f6d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4450042/normal_5fd2c51bc7d75.pdfIn PDF document text
    • http://podarokinsta.online/63098583928o07yy.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4385410/normal_5fd9cc2bddcce.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4450506/normal_5fe2b5c211a29.pdfIn PDF document text
    • http://1xbets-regs.site/vonowatolufuf7kwrl.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4426677/normal_600e9fff64d59.pdfIn PDF document text
    • https://cdn.sqhk.co/kubemuzu/qvjbJhf/prime_video_android_tv_app_apk.pdfIn PDF document text
    • http://pofaduxiruk.getenjoyment.net/how_long_should_a_home_water_softener_last.pdfIn PDF document text
    • http://mosebuzixat.mywebcommunity.org/zawujalixenow.pdfIn PDF document text
    • http://nigavereke.mygamesonline.org/33202023583.pdfIn PDF document text
    • https://cdn.sqhk.co/kibutonap/Dhejj61/lexubebogogopaxebireg.pdfIn PDF document text
    • http://wejnpowk.space/515062867076v5vj.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4482191/normal_602380f8c06a2.pdfIn PDF document text
    • http://sevowina.medianewsonline.com/1063903669.pdfIn PDF document text
    • http://reduslim-shop.site/21298475589tut2b.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://donijexufenu.onlinewebshop.net/16464927531.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_off0000e3ae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE3AE 5804 bytes
SHA-256: 419c9456140acdee6da43a3a7f0dd255edecb0c194916255f09fdf1b1c0a1494
font_01_sfnt_off0000f756.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF756 11364 bytes
SHA-256: 1589e88c0102188b39514e0e9340a845cd57ab9322fda401274314559e956340