Malicious PDF — malware analysis report

Static analysis result for SHA-256 b0bbc66dd8dffb0f…

MALICIOUS

PDF

76.9 KB Created: 2021-03-20 16:04:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4752d9e2cd231c631810ef1115c0049c SHA-1: 2c95b0d699379790d71be51b543a8213ff58bf49 SHA-256: b0bbc66dd8dffb0f6f0cfb3ac99c91b63c4092f996b647517c17701a077a94c8
96 Risk Score

Malware Insights

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

The PDF document contains an embedded URL that redirects to a malicious domain, likely intended to trick the user into visiting a phishing or malware distribution site. The ML classifier and ClamAV detection strongly indicate malicious intent, classifying it as a phishing trojan. The document body, though heavily obfuscated, suggests a lure related to pricing Pokemon cards.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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://zajinet.ru/aws?utm_term=how+to+price+your+pokemon+cards
    • http://gumidaz.medianewsonline.com/best_free_alternatives_to_premiere_pro.pdf
    • http://luziniwanemek.sportsontheweb.net/kebulaluzoliwew.pdf
    • https://cdn.sqhk.co/fezemepusap/Y7NDkhb/fufupenasosebavu.pdf
    • http://hotelhouze.ru/bushnell_tour_v4_patriot_pack_manualosp0e.pdf
    • https://cdn-cms.f-static.net/uploads/4414489/normal_5fe6ac77b1507.pdf
    • https://cdn-cms.f-static.net/uploads/4458827/normal_602688ec8326b.pdf
    • http://fozivot.mypressonline.com/water_pollution_in_english.pdf
    • https://static.s123-cdn-static.com/uploads/4401973/normal_5ff60f91cccaf.pdf
    • http://excellent-spb.ru/20478888271zy4fu.pdf
    • https://cdn-cms.f-static.net/uploads/4405904/normal_601ff08537533.pdf
    • https://cdn.sqhk.co/gepeduvo/igihhh1/besevawukusizogi.pdf
    • http://kernig.pro/1101003536ued5t.pdf
    • https://cdn.sqhk.co/zipodumup/haicjgh/nails_of_america_summerwood.pdf
    • https://cdn.sqhk.co/pomorezolo/fhhZxge/blackalicious_alphabet_aerobics_song.pdf
    • http://vutisonoj.sportsontheweb.net/the_enigma_of_amigara_fault_download.pdf
    • http://zukoretevir.medianewsonline.com/minozat.pdf
    • https://cdn.sqhk.co/bebumila/hfbaAYS/10200727190.pdf
    • http://fazejajogavu.medianewsonline.com/riladekig.pdf
    • http://boforobevuziko.mywebcommunity.org/aliphatic_and_aromatic_hydrocarbons.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/ae1aa043-a0ae-4b75-9a92-22dac96f9d59/how_to_pair_hype_wireless_headphones.pdf
    • https://uploads.strikinglycdn.com/files/37777855-dbc9-4459-8f31-9426262113f7/sierra_load_data_223_80_grain.pdf
    • https://uploads.strikinglycdn.com/files/465788a3-4c0f-4dcb-8ec3-5c8b8e2772fd/3872602338.pdf
    • http://wivaxodi.onlinewebshop.net/18511998017.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_off0000eee6.bin
792b948e3093576d003c7aed5167249f782c03b24917c31b0919b7f6592a8458
pdf-font-stream PDF embedded font (sfnt) at offset 0xEEE6 5408 bytes
font_01_sfnt_off0001014c.bin
09edc4602bf900096e00e93f4cf0d72e1288268c7895ef036b713f9c8927c9f8
pdf-font-stream PDF embedded font (sfnt) at offset 0x1014C 10736 bytes