Malicious PDF — malware analysis report

Static analysis result for SHA-256 1eb29211be5941e4…

MALICIOUS

PDF

75.8 KB Created: 2021-01-24 11:22:30 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-17
MD5: 086e3fdb6e57612b19b8b9e1473f6a6a SHA-1: 956b594086e79305904ad40ee34c418416a13b84 SHA-256: 1eb29211be5941e4772c6af6b45de986349bbd15813b43bbd3812bbeac74a5eb
154 Risk Score

Malware Insights

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

The file is identified as malicious by multiple heuristics, including a critical finding for a PDF redirector link pointing to 'ggtraff.ru'. The ML classifier also strongly flagged this PDF. The embedded URL likely leads to a phishing page or a download of a second-stage payload. No scripts were extracted, but the presence of malicious links indicates an attempt to lure the user to a compromised site.

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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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://ggtraff.ru/wb?keyword=marketing%20strategy%20social%20media%20pdf In PDF document text
    • http://noverst.xyz/79642366363czeoi.pdfIn PDF document text
    • http://buyervannakupitvsem.xyz/bubble_maniac_tea_house_peterboroughvx89c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4389095/normal_5fd5f1adf06e9.pdfIn PDF document text
    • http://sportplays.ru/mortal_battle_fighting_gamesku153.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4424347/normal_5fe4fd0fec79f.pdfIn PDF document text
    • http://affilateapp.online/zovibitakuwenibuewavj.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4419003/normal_5fcbd4185ab1b.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4403689/normal_5fc577681c261.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4454543/normal_5fd10e4ee2be0.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4420905/normal_5fffecf1a2741.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4465907/normal_6004323f950b8.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4370560/normal_5ff76b9e1bae7.pdfIn PDF document text
    • https://cdn.sqhk.co/malevevipali/gZygjjb/kung_fu_panda_zodiac_signs.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/gekixadonuru/wedding_minister_speech_template.pdfIn PDF document text
    • https://s3.amazonaws.com/xazarujokemus/android_camera_flash_icon.pdfIn PDF document text
    • https://s3.amazonaws.com/nisiwanolom/cardiac_catheterization_procedure_steps.pdfIn PDF document text
    • https://s3.amazonaws.com/vazisi/bye_bye_babu_dj_naa_song.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_off0000dc0e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC0E 5436 bytes
SHA-256: e702efe15fbb462b44381c17c049b01947424ae15745e09403c3ecbeddf96d55
font_01_sfnt_off0000ee85.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE85 10856 bytes
SHA-256: e69594007a61c05f7cf9478c49a54dbdacbf6dd4637a8b08467a8b74ab247967
font_02_sfnt_off000113a4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x113A4 4324 bytes
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361

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