Malicious PDF — malware analysis report

Static analysis result for SHA-256 34aab1afcc1ec6c6…

MALICIOUS

PDF

73.0 KB Created: 2021-03-03 16:43:35 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: 48fdb3fed11dcbb022ecb64c5910d153 SHA-1: 337cbbe5a59384320c1d0bcd392f6ed9627688fa SHA-256: 34aab1afcc1ec6c661aa2c8c08c19b93bd2c9760a9590c005fc2805491b8e15e
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://baarspo.ru/wix?keyword=appvn+latest+apk+uptodown PDF link annotation
    • http://jepenufi.getenjoyment.net/dd_best_warlock_spells.pdfIn PDF document text
    • https://cdn.sqhk.co/jagapifa/hgiwgg8/juicy_fruit_song_chords.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4422161/normal_5fd6484d58966.pdfIn PDF document text
    • https://gomemetunugup.weebly.com/uploads/1/3/2/7/132712315/gudowezakilujav.pdfIn PDF document text
    • http://smeshnoykir.space/97586287454gc9w9.pdfIn PDF document text
    • http://legionmone.xyz/allen_carr_book_free_downloadtjhhd.pdfIn PDF document text
    • http://satofaxa.iblogger.org/votetejop.pdfIn PDF document text
    • https://xikanunifozale.weebly.com/uploads/1/3/1/8/131860479/matafazilurez.pdfIn PDF document text
    • https://cdn.sqhk.co/fapewakuw/icMhijd/ticket_to_ride_costa_rica.pdfIn PDF document text
    • https://cdn.sqhk.co/wupifufexix/eUjWfhe/how_to_cook_pot_stickers_in_the_oven.pdfIn PDF document text
    • https://dovomarolod.weebly.com/uploads/1/3/0/9/130969455/pesavaxal.pdfIn PDF document text
    • http://opensol.xyz/teveluzavototalox41dq0.pdfIn PDF document text
    • https://cdn.sqhk.co/rapawaferew/CQK6jiC/38967149464.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://ratesedefavure.epizy.com/ponapefuge.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_off0000e08e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE08E 5064 bytes
SHA-256: 3b147a14b85725071ab9720bfeb8193475cb0babc083078e47071aea549da012
font_01_sfnt_off0000f1ef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF1EF 10932 bytes
SHA-256: 83a131d61976273899aac2dc8e2575ad93b87afa0d29e8e70064fccf7e652dc2