Malicious PDF — malware analysis report

Static analysis result for SHA-256 ab3a2e8f05d63f27…

MALICIOUS

PDF

66.1 KB Created: 2021-02-26 02:33:52 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 06d63f4a63b94d594c952c2a36998d51 SHA-1: 1f73d6533e89cbee3f86038a095b88c4ac4c8396 SHA-256: ab3a2e8f05d63f276f013812c89b7bc85d2c02570f61f1212fb54e053d4ffa45
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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.
  • 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://bologen.ru/award?keyword=all+you+need+is+kill+%2528manga%2529+2-in-1+edition PDF link annotation
    • https://kaginugopaz.weebly.com/uploads/1/3/4/3/134310825/tabas.pdfIn PDF document text
    • http://zonizubiro.getenjoyment.net/76787646209.pdfIn PDF document text
    • https://cdn.sqhk.co/niwuruba/rhdcjiz/9005596846.pdfIn PDF document text
    • https://jefaganogebe.weebly.com/uploads/1/3/1/4/131437435/dfdee17b19d.pdfIn PDF document text
    • https://cdn.sqhk.co/guzunilepin/iFt4jfy/41372552637.pdfIn PDF document text
    • https://cdn.sqhk.co/gogamosujimi/V1jaOlQ/razawodilalujowiboluk.pdfIn PDF document text
    • https://cdn.sqhk.co/nebafaveju/hdEgdNj/wave_live_wallpaper_mod_apk.pdfIn PDF document text
    • https://cdn.sqhk.co/tamejenonisi/iijib2M/keyboard_sms_free_download_for_pc.pdfIn PDF document text
    • https://cdn.sqhk.co/jifigetuxu/dsgjues/ninja_jumpsuit_costume.pdfIn PDF document text
    • http://watogoda.mypressonline.com/amar_o_depender_walter_riso_free_download.pdfIn PDF document text
    • https://cdn.sqhk.co/gulifunanale/L5uhjhi/cyber_hunter_discord_free_coins.pdfIn PDF document text
    • https://cdn.sqhk.co/kawiwitifa/jiG89mY/liripusaxezatiwixevubemed.pdfIn PDF document text
    • http://falorilipeb.mywebcommunity.org/vevesesekug.pdfIn PDF document text
    • http://muzibatixabu.mypressonline.com/excelsior_meaning_ny.pdfIn PDF document text
    • http://vipadobotisituz.mygamesonline.org/mawanivemekiwezujomodo.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://jiwigazuvix.rf.gd/xanathar_s_guide_to_everything_races.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_off0000c5e2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC5E2 5572 bytes
SHA-256: 9e7d09aa9b44b7f0f2b9329619185ac22deabadd5786d6b638c7cf74d92e9dbf
font_01_sfnt_off0000d8f9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD8F9 10016 bytes
SHA-256: 3d40273b14e33e7e73bb7ccc7f659193708081784e00048bf2a01475cd67cacd