Malicious PDF — malware analysis report

Static analysis result for SHA-256 e132773d6e771dea…

MALICIOUS

PDF

73.8 KB Created: 2021-02-21 14:40:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-29
MD5: ca22540cacd2fd29f53db1442e7f8b31 SHA-1: df485f0c6338e7ccb26e274c350cc32b7cde4c4b SHA-256: e132773d6e771dea6ce696e7ee38e304796dafa0cd3e0142c527fb94dafd0889
96 Risk Score

Malware Insights

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

The PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URI pointing to 'https://maypoin.ru/wix?keyword=championship+soccer+games+today', which is likely a lure to a phishing or malware distribution site. The document body is heavily obfuscated and unreadable, suggesting an attempt to hide its malicious intent.

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://maypoin.ru/wix?keyword=championship+soccer+games+today PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4414501/normal_5ff17890c79d6.pdfIn PDF document text
    • http://onlyforyou.space/my_talking_tom_2p3y96.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4377938/normal_5fcaea2241e8d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4420037/normal_60121d8ce6730.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379371/normal_602c40457008e.pdfIn PDF document text
    • http://sofebitaxed.iblogger.org/doom_2019_ps4_trophy_guide.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4413585/normal_5fc810afc8a0a.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4444377/normal_5ff4050bcd5f1.pdfIn PDF document text
    • http://fragcups.com/candy_crush_apk_android_152l3j.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4496148/normal_5fdf887e3e023.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4404490/normal_5ff234e6b3615.pdfIn PDF document text
    • http://bazis-rostov.com/368843394387xx3p.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4463543/normal_600824cd4d4f3.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://juvegebufu.epizy.com/sajixojexasonazanu.pdfIn PDF document text
    • http://lowuzoduveloga.epizy.com/15649267234.pdfIn PDF document text
    • http://jufakoxageponuz.rf.gd/case_animatronics_hack_apk.pdfIn PDF document text
    • http://rovalonawu.epizy.com/behind_the_candelabra_full_movie.pdfIn PDF document text
    • http://xadamodovupeniz.rf.gd/ruvigubewozemanepulupud.pdfIn PDF document text
    • http://nexaware.epizy.com/blue_prism_developer_certification_dumps.pdfIn PDF document text
    • http://xesovukefezusag.rf.gd/mustapha_cadillacs_and_dinosaurs.pdfIn PDF document text
    • http://gimukukuzape.epizy.com/believer_lyrics_whatsapp_status.pdfIn PDF document text
    • http://fefekug.rf.gd/comparing_and_ordering_rational_numbers_worksheets.pdfIn PDF document text
    • http://fasekefap.epizy.com/flexible_cuttable_mirror_sheets.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_off0000e4aa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE4AA 5460 bytes
SHA-256: 0f12862beea0e71139029a6cfdea0ef54903b41152f00f5cd1954880893f3832
font_01_sfnt_off0000f70f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF70F 10192 bytes
SHA-256: 0b37f553c6c811813f440cf0f99f4e6c1e25bf4e330ac911f99b80b4f7aff2e4

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