Malicious PDF — malware analysis report

Static analysis result for SHA-256 c69c44e63c14f58e…

MALICIOUS

PDF

91.0 KB Created: 2020-11-26 08:26:51 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-02
MD5: e385ad676a9f070c905c2bb6d4345dce SHA-1: dcf59c90daa164fee140cc8bb80aef94c1cecb4b SHA-256: c69c44e63c14f58eb6efd692b342c4d501b1c1443d79fa83ba908577d6a0fd96
96 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 embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9990

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://traffset.ru/strik?utm_term=yoshi+and+birdo PDF link annotation
    • http://www.opentle.orgIn 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://uploads.strikinglycdn.com/files/ffcc2c1b-f3b2-4702-b38a-c94b78df0309/20891761419.pdfIn PDF document text
    • https://s3.amazonaws.com/zufaxepixiguxax/72641832858.pdfIn PDF document text
    • https://s3.amazonaws.com/pazovugal/powujupogofuxekajarat.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0a7ab64d-761d-4111-beb7-2addc7a5a97e/logan_square_xsport_hours.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bac3b28e-9c09-40f4-9d01-37e3370e89b2/pesegikesujepiro.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4e206fde-0556-41c4-9724-d9b7b247b554/guyton_and_hall_textbook_of_medical_physiology_10th_edition.pdfIn PDF document text
    • https://s3.amazonaws.com/mefadedosuw/mp4_google_drive_john_wick_chapter_3.pdfIn PDF document text
    • https://s3.amazonaws.com/dosalapasenow/iowa_state_women_s_basketball_uniforms.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e5af47a7-b221-463e-b8b1-be44acf3555e/feneroverawuwonirudusira.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/26580b34-05ca-440c-a2d7-375fb44edee8/dragon_city_hile_program.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://www.gnu.org/licenses/gpl.htmlIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off0000fe9a.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0xFE9A 15828 bytes
SHA-256: 775b3f0a95d5e869678001de25d34ea67d31ffb1fc9ce147fe0c868b20b9799a
font_00_sfnt_off0000ef4f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEF4F 4572 bytes
SHA-256: 98ae1c18764637c2ecc44579d1a2dc22afdcd7b3b37e09f4602dfac11cb28a88
font_02_sfnt_off00012ad8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12AD8 11200 bytes
SHA-256: 43e73bc6a2b907ca443971a04839cfcff83e7d10b7c618b80c6130c5b487c4d8
font_03_sfnt_off000150f9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x150F9 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f

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