Malicious PDF — malware analysis report

Static analysis result for SHA-256 cc2c4f8343ec043d…

MALICIOUS

PDF

84.9 KB Created: 2021-03-03 19:12:49 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-26
MD5: 8d760b4a9bd5fd442be919c3bbac33be SHA-1: 1f14ac528361ce3d99e7c776e503f43fc7cc0a16 SHA-256: cc2c4f8343ec043d1b375f1755711067410802287685e89840eb4fa728e73cc5
126 Risk Score

Malware Insights

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

The PDF contains numerous embedded URLs, many pointing to disposable domains, suggesting a link farm or phishing lure. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' and the ML classifier strongly indicate malicious intent. While no scripts were explicitly extracted, the nature of the URLs and the PDF structure suggest it's designed to redirect users to malicious sites, likely for phishing or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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
  • 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://jumiwimov.ru/123?utm_term=dirt+devil+power+express+upright+bagless+vacuum+berry PDF link annotation
    • http://startbastar.online/a_suitable_boy_season_1_episode_1_watch_onlineakr6b.pdfIn PDF document text
    • http://maturibcgj.space/guwuxirusugokeburofelilc1s07.pdfIn PDF document text
    • http://wugupomovupa.sportsontheweb.net/theme_of_power_in_oedipus_the_king.pdfIn PDF document text
    • https://cdn.sqhk.co/tixukiko/JigGico/hair_cut_scissors_professional.pdfIn PDF document text
    • http://kinoxca.xyz/fifimigp7w0.pdfIn PDF document text
    • http://tendernes.ru/bartok_mikrokosmos_volume_2rez3n.pdfIn PDF document text
    • http://chambreapp.xyz/91839043266scld7.pdfIn PDF document text
    • http://xakidofe.sportsontheweb.net/dwarf_blood_bowl_set_up.pdfIn PDF document text
    • http://br1.red/verakelw9eep.pdfIn PDF document text
    • http://lovemecompletely.com/what_is_unity_in_art_brainly1t2cz.pdfIn PDF document text
    • http://creamwalls.space/idaho_fish_and_game_salmon_harvest_reportj74fs.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • http://baletax.onlinewebshop.net/ingenuity_swing_where_to_put_batteries.pdfIn PDF document text
    • http://gaditimotef.rf.gd/vozijefoxotugemite.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ffd1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFFD1 5724 bytes
SHA-256: 37084bcbb2a92bed58a94a5cf80444923e34ac8ccf914efb4ba0671e39ad968f
font_01_sfnt_off0001136d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1136D 10700 bytes
SHA-256: 18ccff79f7d443dd1aaf94e249361659bdcfc0d2a6935d02946a51d4c062e294
font_02_sfnt_off000137fe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x137FE 4324 bytes
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361

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