Malicious PDF — malware analysis report

Static analysis result for SHA-256 2e3b118a83f5fb88…

MALICIOUS

PDF

83.9 KB Created: 2021-03-26 08:18:52 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 132a47e97ac18a1e7aa8e46a29b33b2a SHA-1: 18805963f379046a8e15d005e5460f02a943e48b SHA-256: 2e3b118a83f5fb88c453a42677d724ef7d8da461785447370b7d87c108a7cb75
176 Risk Score

Malware Insights

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

This PDF document contains numerous external links, a common tactic for SEO poisoning and phishing. The primary malicious URL, 'https://jacksth.ru/strik?utm_term=les+mis%25C3%25A9rables+broadway+cast+2014', is likely intended to redirect users to a malicious site. The presence of a PDF link farm heuristic and ClamAV detection further supports its malicious nature.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 6

  • 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.
  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
  • 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://jacksth.ru/strik?utm_term=les+mis%25C3%25A9rables+broadway+cast+2014
    • http://gamowenugeg.sportsontheweb.net/where_are_keurigs_on_sale.pdf
    • https://cdn.sqhk.co/rotusorukazi/Mgiljis/latilutajum.pdf
    • https://xesofizagib.weebly.com/uploads/1/3/4/4/134491847/jojixujisonufi-xowedoxefipomid-kukinunilegeru-dovezavotubupaw.pdf
    • https://gozerivolese.weebly.com/uploads/1/3/4/2/134265833/01137c532f418e.pdf
    • https://wexubowepupewaw.weebly.com/uploads/1/3/1/8/131856394/2238146.pdf
    • http://judupebe.getenjoyment.net/binary_options_tutorial.pdf
    • http://ruvikuvi.mywebcommunity.org/casio_g_shock_1289_manual.pdf
    • http://xorimomupajo.scienceontheweb.net/85548663051.pdf
    • http://depotupunejiwo.iblogger.org/chronic_kidney_stone_formation.pdf
    • http://kavakedego.scienceontheweb.net/tomepifi.pdf
    • http://koxelovanalimu.getenjoyment.net/au_bonheur_des_dames_chapitre_1.pdf
    • https://cdn.sqhk.co/xosaletozobi/phxNn78/pit_bull_dog_fight_video.pdf
    • https://cdn.sqhk.co/kitolitik/gfL9geP/22230859784.pdf
    • https://sinukunub.weebly.com/uploads/1/3/4/4/134431456/wotikusi_xakiragim_golozo_pozew.pdf
    • https://varusimutajol.weebly.com/uploads/1/3/4/5/134502614/8965887.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://01d67eed-50ba-4ccb-8f82-c1581f7ed07e.filesusr.com/ugd/e3325f_67ca9b7f020c402c8042ceb24b59cf3a.pdf?index=true
    • http://lenadupubop.rf.gd/play_store_for_jio_phone_link.pdf
    • https://d427386d-3434-45d9-8802-370857a594f4.filesusr.com/ugd/accd1f_509f64f73c364b3086859ec470571b56.pdf?index=true
    • https://26f2e344-8444-46ea-90c9-5a893bcc2fb3.filesusr.com/ugd/b8c837_ba3289aa452844f5b3b0392a03639e3c.pdf?index=true
    • https://67258aaf-84c5-4a88-bfd2-1aa7ddb6c27a.filesusr.com/ugd/850f07_a271c38685dc4e4aa20bfcef20f31aa6.pdf?index=true
    • https://ad5375d1-0dc8-447d-a54b-f1659eeba1ba.filesusr.com/ugd/a4ba79_8d85dd0ac1d146cd814bd40d6611b388.pdf?index=true
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f731.bin
fe347c29107ed1bd87eab6927f077b4e69aaea62ecf4fca13464a5bb68634b09		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF731 5600 bytes
font_01_sfnt_off00010a0e.bin
2b404560ad12626e4874d92f9056c78db04b5aa77d56ae16fcb654fddc13d8fd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10A0E 11912 bytes
font_02_sfnt_off0001321b.bin
4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1321B 4324 bytes

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