Malicious PDF — malware analysis report

Static analysis result for SHA-256 801653348adfcdef…

MALICIOUS

PDF

66.8 KB Created: 2021-02-25 16:54:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: cc1f742447cb2495b50b6350c7b36ada SHA-1: ad0a0e6c00b1c36e918476c42fc22220acb806ec SHA-256: 801653348adfcdefb2ccc729ccdb505554a9a43ee91443a7eceb2a9507515d37
184 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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 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.
  • 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://yafferge.ru/aws?utm_term=satyarth+prakash+in+hindi+audio In PDF document text
    • http://dujojiwasemob.mywebcommunity.org/gidorapuwatodune.pdfIn PDF document text
    • http://gibejujefuguxax.22web.org/paxoxokimujus.pdfIn PDF document text
    • http://vijexibat.mywebcommunity.org/16374307671.pdfIn PDF document text
    • http://ruguwafe.scienceontheweb.net/what_are_the_5_elements_of_game_design.pdfIn PDF document text
    • http://cybety.xyz/rofekamusefaxul85kkj.pdfIn PDF document text
    • http://lazujifoxupa.getenjoyment.net/nabojex.pdfIn PDF document text
    • https://cdn.sqhk.co/kominepoli/XMtgfg6/rounded_corners_or_square_corners_web_design.pdfIn PDF document text
    • http://dewisazovuvoxi.mywebcommunity.org/how_to_use_the_karcher_jet_wash.pdfIn PDF document text
    • http://ewwe.space/how_to_get_government_funding_for_nonprofit_organizationsv3gvm.pdfIn PDF document text
    • https://cdn.sqhk.co/jifegusewe/gh5jdxM/life_or_die_zombie_survival_pro_mod_apk.pdfIn PDF document text
    • http://tevuvisena.iblogger.org/zolepovebikakutojidifow.pdfIn PDF document text
    • http://love-your-lips.online/metlife_accidental_insurance_claim_formu7ch1.pdfIn PDF document text
    • https://cdn.sqhk.co/fezivabuja/W9hdBhL/jalogaduxedopepud.pdfIn PDF document text
    • https://japatuxivavagax.weebly.com/uploads/1/3/0/7/130775167/mofisepopokikizerij.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://belajuba.epizy.com/bunutuzuxijaxoloxiguzefe.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_off0000caca.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCACA 5284 bytes
SHA-256: 688289457fd251808733d2c5375764f1dc91f31dac3172a3d1803c6443590155
font_01_sfnt_off0000dcc0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDCC0 9892 bytes
SHA-256: 0dc6ac07f9af72860c0089fccd74430761835df752c31118c31bce8bdd5c161a