Malicious PDF — malware analysis report

Static analysis result for SHA-256 6629291e6af9f285…

MALICIOUS

PDF

81.9 KB Created: 2021-04-05 04:10:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-07
MD5: bb08cebb5f414a76f49c5d3f64c7522b SHA-1: 5321e3c51aa5e151f19bb93418a8c139b970abeb SHA-256: 6629291e6af9f2852053db1d9c148478421fbf009481b0bac25b88b226be1790
96 Risk Score

Malware Insights

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

The PDF file was flagged by ML classifiers and ClamAV as malicious, indicating a high likelihood of malicious intent. It contains an embedded URI pointing to 'dugedepap.ru', which is likely part of a phishing or social engineering scheme to trick users into visiting a malicious site. The document body, though heavily obfuscated, suggests a lure related to 'anti cancer drugs list pdf'. No scripts were extracted, but the presence of external URIs and the overall detection profile suggest it's designed to lead the user to a malicious resource.

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://dugedepap.ru/award?keyword=anti+cancer+drugs+list+pdf PDF link annotation
    • http://vpntop.info/sap_material_requirement_planningvqnsf.pdfIn PDF document text
    • http://strgb2.ru/bomba_de_ariete_pvc6dg3x.pdfIn PDF document text
    • http://getbuiss.online/866231742484leh5.pdfIn PDF document text
    • http://sbrf.link/519509872792m6z7.pdfIn PDF document text
    • http://sunshop.pro/18204397356ggr8w.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4410433/normal_6065ca86ad869.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4494657/normal_606602b04d147.pdfIn PDF document text
    • http://gayerkan.com/lotozanikogefion4sd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4390051/normal_601b2d6f4488f.pdfIn PDF document text
    • https://cdn.sqhk.co/wepunajexiju/jjGsicR/92030523465.pdfIn PDF document text
    • http://trenolgia.buzz/cpwd_telephone_directory_2020u0jl1.pdfIn PDF document text
    • https://cdn.sqhk.co/kulobibab/GaYtijn/dodge_action_3d.pdfIn PDF document text
    • http://itslm.fun/tavokoguweyozl1.pdfIn PDF document text
    • http://fitdieta.com/623627587416sg1z.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/vesubodufisi/21321511370.pdfIn PDF document text
    • https://s3.amazonaws.com/pululusodogi/70406230091.pdfIn PDF document text
    • https://s3.amazonaws.com/mesixadelomomo/adobe_acrobat_reader_dc_italiano_free.pdfIn PDF document text
    • https://s3.amazonaws.com/kujesulad/40256210571.pdfIn PDF document text
    • https://s3.amazonaws.com/vifusupegiza/convert_to_editing_word_document.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e61d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE61D 5084 bytes
SHA-256: 483800616c896c3b7a4b0d09b9a69c66f114f0f57f5b0d32b4c01ce3f9986acd
font_01_sfnt_off0000f763.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF763 2092 bytes
SHA-256: 9fcfd2b2c12c9d480c0beec3ee39f05b9e518edc5177a7a5fcc68dff0371f8a2
font_02_sfnt_off00010104.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10104 14040 bytes
SHA-256: 136dd5e49ef6be2c4dc191145dcc971b8d79a0816596889394ee68daab476a8d
font_03_sfnt_off00012c21.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12C21 4324 bytes
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3

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