Malicious PDF — malware analysis report

Static analysis result for SHA-256 2d197b022fd4a11b…

MALICIOUS

PDF

72.2 KB Created: 2020-11-23 08:39:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: dd287c9548b8f320bc66e3373da209ac SHA-1: dee62b632944e31726e9e18fa61889e41a4c8595 SHA-256: 2d197b022fd4a11bfa6de9d77d2451a503fddbb25345a2b3eec063b73cd666e5
154 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file routes users through malicious redirector infrastructure. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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/123?utm_term=gauntlet+dark+legacy+red+runestone+locations In PDF document text
    • https://cdn-cms.f-static.net/uploads/4393761/normal_5f9f5b6adf5ae.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4380692/normal_5f98c721db8a8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4380539/normal_5f994b1eb7188.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369493/normal_5f8a6391bedff.pdfIn 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/02fc2c24-58ca-41a8-8958-8552d57f162c/trudeau_salt_and_pepper_mill_refill.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/879edd7c-2569-439a-bb1e-1cce9678f630/bbg_workout_planner.pdfIn PDF document text
    • https://s3.amazonaws.com/forupokisip/net_accounts_receivable_days.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c25a43ed-b354-4e15-b941-d0021696be1b/hacked_bank_account_and_routing_numb.pdfIn PDF document text
    • https://s3.amazonaws.com/wupixufekijax/kittanning_hoagie_shop_menu.pdfIn PDF document text
    • https://s3.amazonaws.com/bededuxotulapil/vofalikudutixapazuwiwimom.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2d13bb58-d6d6-4daf-a899-413eee34095f/dragonvale_gemstone_dragon_breeding_guide.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c9d2e6b8-edd4-4b74-a80b-bd0e50dd54e8/jetpack_joyride_unlimited_coins_apk_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_off0000e225.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE225 5304 bytes
SHA-256: 3affc5b3c1c0a11255dac3ee33ee44f43677c6b09252911c19b717ad39b2fecd
font_01_sfnt_off0000f44c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF44C 9320 bytes
SHA-256: 163d429f77ef18025b4ea1e9c74ef7558f7012a3b39131bf9e9e79cc7755007a

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