Malicious PDF — malware analysis report

Static analysis result for SHA-256 7ed720ad5a09d916…

MALICIOUS

PDF

83.0 KB Created: 2021-03-04 14:47:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-20
MD5: cf28d35996158d285dbb9841e0aad342 SHA-1: 8d95d6d5d9ac1015f058c15386b8c74d3667fbdc SHA-256: 7ed720ad5a09d916238011c222fbc0b4bb878b212f2190d8ab4dd1da43fd13b2
96 Risk Score

Malware Insights

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

The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The embedded URL points to a suspicious domain, likely used to host a phishing page or a second-stage payload. Although no scripts were explicitly extracted, the PDF structure and embedded URLs suggest an attempt to redirect the user to a malicious site, consistent with phishing or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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=babies+r+us+easylite+convenience+stroller PDF link annotation
    • http://jenirafona.22web.org/56269812231.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4496816/normal_601689a0dc6c3.pdfIn PDF document text
    • http://gowitobo.iblogger.org/73898336477.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4425507/normal_600a60c47439e.pdfIn PDF document text
    • https://cdn.sqhk.co/mofijovelu/gex9HUn/alien_shooter_gift_codes_2020.pdfIn PDF document text
    • http://podarokinsta.site/achenbach_child_behaviour_checklisttfee5.pdfIn PDF document text
    • https://cdn.sqhk.co/poxufape/fWheji9/globe_prepaid_wifi_promos_for_1_month.pdfIn PDF document text
    • http://zekamuwafevero.iblogger.org/68061694228.pdfIn PDF document text
    • http://blockhcain.host/citizen_eco-drive_promaster_skyhawk_a-t_watch_jy0010-50ezrk48.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4458837/normal_5fdf0df33f53e.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/fedojigudaj/tikarexarewituvidedezuxib.pdfIn PDF document text
    • http://sufumawug.epizy.com/baadshah_telugu_hd_video_song.pdfIn PDF document text
    • http://fibajufe.rf.gd/android_auto_apk_4pda.pdfIn PDF document text
    • https://s3.amazonaws.com/bipovoromoj/schematic_report_template.pdfIn PDF document text
    • http://vukimikopid.epizy.com/what_is_a_french_week.pdfIn PDF document text
    • https://s3.amazonaws.com/fumiposamisur/zejorigenokej.pdfIn PDF document text
    • http://kusotuwomaru.epizy.com/formal_dresses_baton_rouge_la.pdfIn PDF document text
    • https://s3.amazonaws.com/sefipa/alien_lanes_guided_by_voices_full_album.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_off0000fa90.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFA90 5024 bytes
SHA-256: 2d921a060545f18c95e487d318708b10c0c1514472cf41b5dc506055fd1168b4
font_01_sfnt_off00010bb4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10BB4 10740 bytes
SHA-256: ebbe935e93b7bff94c099a455830f2f08ff4bd391bd82deb5615a821fdd89fe8
font_02_sfnt_off0001307c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1307C 4324 bytes
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2

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