Malicious PDF — malware analysis report

Static analysis result for SHA-256 34f2af1cf882ce87…

MALICIOUS

PDF

70.4 KB Created: 2020-12-03 18:31:55 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-05
MD5: bf81ab7cc138fd781a2bac7266047a92 SHA-1: dfc5f4e30f0b3b26245c11973002db01cf8b8345 SHA-256: 34f2af1cf882ce873166b9434e4ae85639bd6ad6b3beba5a804fb834dea63c77
154 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'ggtraff.ru'. This URL is the primary indicator of malicious intent, likely serving as a lure for phishing or to download further malicious content. The ML classifier also strongly flagged this PDF as malicious.

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/aws?utm_term=abyssal+sire+osrs+guide In PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/c4b6f731-7d67-464f-aa90-937da75a0b17/3_day_notice_form_florida.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ae1fbc9b-631d-410d-8203-d2402b38e05d/adobe_premier_pro_2019_crack_free.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbcf0662c6de34c7a37ab40/1606217830656/bose_soundlink_mini_2_manual.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc11ff5ea4a794d5646682f/t/5fc2e613cb3e0f5771b01dae/1606608403961/subway_surfers_new_york_apk.pdfIn PDF document text
    • https://s3.amazonaws.com/jasipefulaxiduj/delivipovefol.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e6ea5f85-47d0-4202-8fb0-26f772fb3997/black_and_decker_complete_guide_to_treehouses.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d20ebe43-ab1e-4337-a090-bf7513ab6cfc/tugifizokazafi.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc578bb92c50b1a1e9652c3/t/5fc79365a907d7439cdefdef/1606914918182/hd_music_player_apk.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b5b92d72-fcc7-4d86-ba1c-ccbd794bdc84/ge_predix_architecture.pdfIn PDF document text
    • https://s3.amazonaws.com/kakekojezutok/one_wheeled_powered_skateboard.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/210eeeb1-05b0-4dd9-afb9-b3d98ec0d2b9/9876196852.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/80ab9528-b30d-4e11-9c2f-fd3fdc0d6495/vogijexigo.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc102e7bda9c57a97beca32/t/5fc8f0a38ae58f63938f8cb4/1607004324249/top_down_shooter_android_games_free_download.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_off0000d68d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD68D 5224 bytes
SHA-256: 1a1889b87ec75a3656fd04fc17cfa67835b38d7db57be14a5b8c8df28fd262b5
font_01_sfnt_off0000e864.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE864 10684 bytes
SHA-256: 8cb6290ed641b90224e980c94fb9e7c4db4f8243ffe984de0c8b0fdc6cc02bbc

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