Malicious PDF — malware analysis report

Static analysis result for SHA-256 a2cd84187ee2802d…

MALICIOUS

PDF

163.3 KB Created: 2021-04-01 06:08:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-10
MD5: 215d6eaafc8a91bfd3560f3979e5faf1 SHA-1: 44791b32961743bf74af5fc18ef445df212a952c SHA-256: a2cd84187ee2802d4e8799b4486456c1bdc60b3012c20c55ffb58bbe755c2f87
136 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

The file was detected as a malicious PDF by ClamAV and an ML classifier, exhibiting characteristics of a credential harvesting lure. The embedded URL and document body suggest a phishing attempt disguised as a game advertisement. While no scripts were explicitly extracted, the PDF structure and embedded URIs indicate potential exploitation or redirection to malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • MFA / one-time-code harvesting lure high SE_MFA_LURE
    Document asks for a one-time code, authenticator approval, or MFA confirmation — consistent with credential phishing kits that steal session tokens or abuse multi-factor authentication
  • 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://resalured.ru/123?utm_term=best+shooter+games+for+android PDF link annotation
    • https://cdn.sqhk.co/pixazizaze/biadiJI/naduj.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4497372/normal_605a0cdb7c46e.pdfIn PDF document text
    • https://papifovi.weebly.com/uploads/1/3/4/3/134339441/merapawubugi.pdfIn PDF document text
    • https://cdn.sqhk.co/riwaxagi/vhc4Vhi/futovifibobi.pdfIn PDF document text
    • https://cdn.sqhk.co/lozukoxokir/ggjgjcZ/free_video_call_app_in_dubai.pdfIn PDF document text
    • https://cdn.sqhk.co/gepabafi/aidOici/real_life_simulator_2017.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370265/normal_605fda922dcd0.pdfIn PDF document text
    • http://buylettersonline.com/hill_rom_bed_weight_capacity7j0at.pdfIn PDF document text
    • https://tetejinuditobig.weebly.com/uploads/1/3/5/9/135973847/wikakopati_wedososa_baxaseviko.pdfIn PDF document text
    • https://cdn.sqhk.co/givesaxi/cjeg2ZN/refakalikojigugafa.pdfIn PDF document text
    • https://cdn.sqhk.co/bosamame/ihii3ib/bialetti_coffee_maker_manual.pdfIn PDF document text
    • https://cdn.sqhk.co/mejapevelu/A22Hhe0/zombie_party_favor_ideas_for_bridal_shower.pdfIn PDF document text
    • https://cdn.sqhk.co/modonasuje/ghThfgf/xuvirexomigoxed.pdfIn PDF document text
    • https://cdn.sqhk.co/fakineduxafe/ieZjyhd/58801727232.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4447906/normal_602bdf0392781.pdfIn PDF document text
    • http://euroshopme.site/mijugezf6pmt.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/doxifuba/noxanerugijeroji.pdfIn PDF document text
    • https://s3.amazonaws.com/gotitibekovi/bemililimafaraferimitezuj.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000246f5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x246F5 5340 bytes
SHA-256: a8ca1ed7a9c5f503b337834c6d9eb24b477070a2282e5e0060d7ffe2dc8756a5
font_01_sfnt_off000258f8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x258F8 11604 bytes
SHA-256: dd69bf986b136e04ed1765592e54d553a925a7b95dd542974be27ed637c69760

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