Malicious PDF — malware analysis report

Static analysis result for SHA-256 569c7a37d8850764…

MALICIOUS

PDF

72.4 KB Created: 2021-02-23 00:50:49 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: fcc35fb28cbe1a6741b9cd7cf13e52d9 SHA-1: 3d3594b5a6dde99c942b6fe4b9660a7dba7d3e2c SHA-256: 569c7a37d8850764db81a73c66ecb07197a185bf68a943d19f8de886b1e3daba
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 6

  • 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.
  • 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://jottigo.ru/aws?utm_term=helter+skelter+an+american+myth+cast PDF link annotation
    • https://cdn.sqhk.co/woxemumi/dzmCdij/rumble_on_news.pdfIn PDF document text
    • http://podarokinsta365.site/sotolulozisafunopukokewak505g1.pdfIn PDF document text
    • https://cdn.sqhk.co/puruwedisuma/fhijfig/adidas_originals_x_star_wars_rivalry_hi_chewbacca.pdfIn PDF document text
    • http://nubolats.xyz/how_much_lotus_car_costakgr8.pdfIn PDF document text
    • https://zebonusifok.weebly.com/uploads/1/3/4/5/134509505/1499510.pdfIn PDF document text
    • https://nemapawa.weebly.com/uploads/1/3/0/9/130969411/jamuzedo_datixilumodiri_fudezasirabuko_bopetegos.pdfIn PDF document text
    • https://cdn.sqhk.co/luwivimexu/Mqja2je/68063194024.pdfIn PDF document text
    • https://zikepasut.weebly.com/uploads/1/3/4/1/134108801/0c535d99ce1.pdfIn PDF document text
    • https://cdn.sqhk.co/pozigafo/WhajfLX/australian_defence_apparel_careers.pdfIn PDF document text
    • http://crubr.space/21953550558fwis9.pdfIn PDF document text
    • https://teligodinawam.weebly.com/uploads/1/3/4/4/134457670/tixigavezuji_tokoluti_vukaze.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/gupawupigawono/endnote_ntu_mac.pdfIn PDF document text
    • https://s3.amazonaws.com/kudufigunabi/why_will_my_hot_tub_not_heat.pdfIn PDF document text
    • https://s3.amazonaws.com/patotale/woleliveratupowo.pdfIn PDF document text
    • https://s3.amazonaws.com/paxivogedewilu/actinomicosis_tratamiento.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_off0000e037.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE037 5164 bytes
SHA-256: b9b670bc78035a8149209b1501d8345e2c258f7dae2a1ba382075dcabf27c610
font_01_sfnt_off0000f19d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF19D 10420 bytes
SHA-256: 489241068d6f3ec4e49d2d322039e84508eb2adda72ba2f06e29b373a4044e0d