Malicious PDF — malware analysis report

Static analysis result for SHA-256 cce46688bdeca89c…

MALICIOUS

PDF

81.2 KB Created: 2021-03-28 20:27:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 042a29b16973b8efd8e1037ce6a3167f SHA-1: 58d3f87fadffd32d3fdb949abdb4cc21560ab809 SHA-256: cce46688bdeca89cad37bdf01c2be9edd0712e7c871e8292237721e0972d4efc
186 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

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://soxebez.ru/award?keyword=abbott+alinity+m+pdf PDF link annotation
    • https://cdn.sqhk.co/merisipugito/TCjjjhw/57201474081.pdfIn PDF document text
    • https://cdn.sqhk.co/wadelovelo/d5hhWgf/english_word_puzzle_games_online.pdfIn PDF document text
    • https://cdn.sqhk.co/mofekuma/gihj8hd/trial_xtreme_4_cheats_deutsch.pdfIn PDF document text
    • http://cucoupon.info/vitamix_e310_vs_52009shyg.pdfIn PDF document text
    • https://cdn.sqhk.co/tavedikovo/kbEHhfN/fatupusibewat.pdfIn PDF document text
    • https://cdn.sqhk.co/kaxonavi/gehijdM/94173292881.pdfIn PDF document text
    • https://cdn.sqhk.co/dasadogiso/gg0pdjg/86031112791.pdfIn PDF document text
    • http://lianhua.life/coc_single_player_guidezpubb.pdfIn PDF document text
    • http://sunshop.pro/widojediocbvt.pdfIn PDF document text
    • https://cdn.sqhk.co/valujoper/u1herig/meccano_maker_system_4x4_off_road_truck_instructions.pdfIn PDF document text
    • http://zugipipekuf.22web.org/zusulezubamokarepo.pdfIn PDF document text
    • https://cdn.sqhk.co/vunofufi/GjfhaSk/pizza_chef_sunapee_number.pdfIn PDF document text
    • https://cdn.sqhk.co/pepupiribojo/aiUhjkB/revulemone.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://lixutepojux.rf.gd/fotokukuj.pdfIn PDF document text
    • https://8137cd1e-393d-4948-8193-eca935452849.filesusr.com/ugd/756799_077a79d262484075a8b756b3881b27bc.pdf?index=trueIn PDF document text
    • https://8dfdba76-182f-4dc4-9dda-37a8c8d09dc9.filesusr.com/ugd/4ae4db_1e1175912bc54bb490239a0281dc2b62.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/95e8a8a3-9407-4071-9246-f8089353ab75/logitech_g710_software.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/98474e60-d304-442b-a550-0e3d890c966d/rerupadefewovavesogaj.pdfIn PDF document text
    • http://fatebem.epizy.com/dojofi.pdfIn PDF document text
    • https://4228e3e8-6e56-436b-9c2a-5710a6c3a216.filesusr.com/ugd/e32dc8_c0f81bd7699d4e3fa1cf09b65288e172.pdf?index=trueIn 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_off0000fd74.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFD74 5144 bytes
SHA-256: a849c277c477abba4f83feb917a02a0bea5db40969c6f515e15e6a193eee7d79
font_01_sfnt_off00010ef2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10EF2 11648 bytes
SHA-256: 40070c904801c7ce662f536e0f852fa228250c76ee15f32e71ef2cb0b31b1094

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