Malicious PDF — malware analysis report

Static analysis result for SHA-256 bb341f59b59440e3…

MALICIOUS

PDF

216.0 KB Created: 2021-06-09 21:10:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-25
MD5: 4cbce6ec0dd01f8ef89ecccf31b0bb1e SHA-1: e38f5864ff5c2000ebd023f4fd83b6845b2eab17 SHA-256: bb341f59b59440e34bf5572954e09cfdd296dcef908435a8b741c6560c18e229
96 Risk Score

Malware Insights

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

The PDF contains an embedded URL that directs users to a site associated with a 'fastlane millionaire' lure, indicating a phishing or scam attempt. The ML classifier and ClamAV detection strongly suggest malicious intent. While no scripts were directly extracted, the PDF structure and embedded URI are indicative of a phishing lure, likely intended to lead the user to download further malicious content or provide sensitive information.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9962

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://archism.ru/pbw?utm_term=fastlane+millionaire+pdf PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4414166/normal_6068d1b55e212.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4377938/normal_602ed8938d9ea.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4475194/normal_5fe13b0a17bfd.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
    • http://vijewiriw.pbworks.com/w/file/fetch/144749775/departmental_test_answer_key_2018_appsc.pdfIn PDF document text
    • http://wudiwiligis.pbworks.com/w/file/fetch/144543252/59303572416.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/be0718bd-688b-4c8c-8a66-3e6f00433c5d/pefajubefidodanokovax.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7d6208e7-f23f-41d4-b522-30a74938f042/g_shock_mudmaster_watch_battery_replacement.pdfIn PDF document text
    • http://xoxafepapesu.pbworks.com/w/file/fetch/144598419/is_the_dating_game_killer_on_netflix.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1dc26f74-d2fc-4538-850a-9ca40f17cfd5/zunowen.pdfIn PDF document text
    • http://kiletejude.pbworks.com/f/mulojukosofoxozuridusup.pdfIn PDF document text
    • http://wuxikadafi.pbworks.com/w/file/fetch/144882570/convert_arpents_to_acres.pdfIn PDF document text
    • http://tarogifere.pbworks.com/w/file/fetch/144772035/41355788419.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/dc997491-1104-46d8-86c3-dbfaf26732a9/9497431062.pdfIn PDF document text
    • http://gutupum.pbworks.com/w/file/fetch/144632382/24240200265.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/249c6186-afef-453c-8298-26a1dbc1e074/salonojiwodoso.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/013c2a86-7523-4417-aaaa-47d5c15915d0/tekupijexoxivodojux.pdfIn PDF document text
    • http://wirabofitox.pbworks.com/w/file/fetch/144743877/anticancer_david_servan_schreiber_download.pdfIn PDF document text
    • http://jilawuxifi.pbworks.com/f/16552985171.pdfIn PDF document text
    • http://sozakuvepar.pbworks.com/f/betazoj.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/32910774-d273-418c-aa6f-6da654db60c2/80391514675.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c33f39bd-e57b-44da-8ea1-d558247a10cc/how_do_i_fix_my_canon_camera_lens_error.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5ae98904-51dc-4ca0-bed1-e84518f26d20/is_wilderness_survival_an_eagle_required_merit_badge.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0003102e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3102E 4932 bytes
SHA-256: 397f30e3a2b1e6fa97a2f99ac9035817808075b49907be0c07d32b63668ec339
font_01_sfnt_off000320d0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x320D0 10768 bytes
SHA-256: e2e55b7b77b3643cbbc2fa730e4902a918554e9688af9f81b6d2ee8aa2ac0169
font_02_sfnt_off00034579.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x34579 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176

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