Malicious PDF — malware analysis report

Static analysis result for SHA-256 a5ccc15e6296b80b…

MALICIOUS

PDF

85.0 KB Created: 2021-02-24 19:47:48 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-23
MD5: 2c092147c22e52558f70e5bf451a274b SHA-1: 02e3d97c4af50f14f813c35563c3bc67a0253a80 SHA-256: a5ccc15e6296b80bde54650d16add7e6e304305305b2c3630bc9f7ad15808ad3
186 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF file was flagged by ClamAV as Pdf.Phishing.Trojan and an ML classifier indicated a high probability of maliciousness. It contains a large number of external links, many hosted on disposable domains, suggesting a link farm designed to distribute malicious content or phish users. The document body, though heavily obfuscated, appears to reference a 'Wow jager lvl guide', likely a lure to entice users to click the embedded links.

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://jottigo.ru/wix?keyword=wow+j%25C3%25A4ger+lvl+guide+1-90 PDF link annotation
    • https://cdn.sqhk.co/jebavimot/emZzie5/gallery_furniture_store_altamonte_springs_fl.pdfIn PDF document text
    • https://fugunukotuji.weebly.com/uploads/1/3/4/5/134589730/simafaxajivu.pdfIn PDF document text
    • https://rulorakaduf.weebly.com/uploads/1/3/4/4/134480735/a96cd7a71.pdfIn PDF document text
    • https://cdn.sqhk.co/pinepopowig/fgcjeb7/sluzewiec_horse_racing_track_warsaw.pdfIn PDF document text
    • http://kamikofonem.mygamesonline.org/43226274263.pdfIn PDF document text
    • https://cdn.sqhk.co/pazakazagoz/Sjujeia/landscape_coloring_book_color_by_number_apk.pdfIn PDF document text
    • https://cdn.sqhk.co/kawurefeki/LijghF7/50579489245.pdfIn PDF document text
    • http://jiteruruw.sportsontheweb.net/conair_clipper_blades.pdfIn PDF document text
    • http://terugate.mypressonline.com/84262572430.pdfIn PDF document text
    • http://mikovil.mywebcommunity.org/lg_wireless_headphones_for_smart_tv.pdfIn PDF document text
    • https://cdn.sqhk.co/rijomawonuj/cBjavKR/lelunoseboluz.pdfIn PDF document text
    • https://cdn.sqhk.co/fepebage/lgjPibR/prison_escape_puzzle_adventure_level_2.pdfIn PDF document text
    • http://raguvigawak.mypressonline.com/10471316998.pdfIn PDF document text
    • https://mowerezudajam.weebly.com/uploads/1/3/5/9/135966589/1d1a20756595dfa.pdfIn PDF document text
    • http://wumewil.sportsontheweb.net/fatutisibikejigub.pdfIn PDF document text
    • https://mepalowe.weebly.com/uploads/1/3/1/0/131070826/zojewaxekosebevelar.pdfIn PDF document text
    • https://cdn.sqhk.co/ruwonumatag/chfN2x7/glitter_lips_with_makeup_brush_set_coloring_games.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://rosajeku.myartsonline.com/vezaxidazana.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_off00010dcf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10DCF 5464 bytes
SHA-256: 07dcf7a56f2fc8beded63f29be07f27ef52800ed5e6da1aadebe2ef32c01b1e1
font_01_sfnt_off000120a9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x120A9 10532 bytes
SHA-256: 65b7ee6d7d82934d3e511c06c8d755d53ecca78e9f7bfd3d55f37e42d9ad0a49

Open this report in the interactive analyzer, or submit your own file for analysis.