Malicious PDF — malware analysis report

Static analysis result for SHA-256 b94e01dba6cf947d…

MALICIOUS

PDF

78.9 KB Created: 2021-04-15 13:51:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c1d975e6b3753e7be466bceac119351f SHA-1: bfa0b6bdce91daaf5592fed888865ce165c16f9a SHA-256: b94e01dba6cf947dcedeb7957d36783a758810d02cd7e90e791e14a2986e0fd2
96 Risk Score

Malware Insights

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

The PDF contains an embedded URI pointing to a suspicious domain, identified by ClamAV as Pdf.Phishing.Trojan. The document body, though heavily obfuscated, appears to reference product details, suggesting a lure to a phishing or malware distribution site. The presence of external URIs indicates an attempt to redirect the user to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://vilenefex.ru/strik?utm_term=chicco+keyfit+30+infant+car+seat+orion
    • https://cdn.sqhk.co/wuwexosul/VgdEjfi/sirope_de_arce_que_es.pdf
    • http://jurexulekuw.22web.org/modle_bon_de_livraison.pdf
    • https://cdn-cms.f-static.net/uploads/4457590/normal_602aa47c72220.pdf
    • https://cdn.sqhk.co/batumozi/AghVfhg/jowawudi.pdf
    • https://cdn.sqhk.co/tavikebepo/048jihg/56844666526.pdf
    • https://cdn.sqhk.co/fagiseregu/4jcHSGB/69818398439.pdf
    • https://cdn.sqhk.co/gogojelawov/ie4sfK2/nfl_football_playoff_scores_2020.pdf
    • https://cdn.sqhk.co/rapowipijes/jagfZjj/atari_2600_emulator_windows_10.pdf
    • https://cdn-cms.f-static.net/uploads/4372963/normal_60176acd96238.pdf
    • https://cdn.sqhk.co/jojevirelo/JmY4Bjh/65859254923.pdf
    • https://cdn.sqhk.co/tibidimewako/dKgf1cP/11363958126.pdf
    • https://cdn.sqhk.co/rijomawonuj/6Tu5hhf/retro_arcade_games_for_sale_brisbane.pdf
    • https://static.s123-cdn-static.com/uploads/4378152/normal_60076dbdb8e13.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/xalexojaxipud/english_sheets_for_2nd_grade.pdf
    • https://uploads.strikinglycdn.com/files/73405a0e-52a4-417c-a4c8-04e39118e672/genie_model_7055_wifi.pdf
    • https://s3.amazonaws.com/kakef/attarintiki_daredi_movie_comedy_scenes.pdf
    • http://wamasoz.epizy.com/kanuguwezegenufotixujoxe.pdf
    • https://uploads.strikinglycdn.com/files/553dbb9b-1288-4160-a4cd-7e7f8d6a871c/46024385740.pdf
    • http://dijuxuzuzame.rf.gd/new_islamic_calendar_1441.pdf
    • https://s3.amazonaws.com/febopa/bizewodisemew.pdf
    • https://s3.amazonaws.com/pokorevalaxex/69031021704.pdf
    • http://negavutagogo.epizy.com/43769362352.pdf
    • 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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f546.bin
8816c827c8ac9dad416578b3bebc87d502abb065cdbfa7a22200924f6be99d41
pdf-font-stream PDF embedded font (sfnt) at offset 0xF546 5312 bytes
font_01_sfnt_off0001075c.bin
44cc005c2de3ccb07b10ef80855732de16de1ce0b794bdba4a26f058784e36df
pdf-font-stream PDF embedded font (sfnt) at offset 0x1075C 11144 bytes