Malicious PDF — malware analysis report

Static analysis result for SHA-256 6d6fd42c731cb42c…

MALICIOUS

PDF

60.3 KB Created: 2020-12-15 11:08:19 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 940241cdd50e58bceaa36e80480acf3a SHA-1: b3bd613c7f4d575730204da679effce328937722 SHA-256: 6d6fd42c731cb42ce90feab04195fa4da87df24e65bfcc76a26210a46967ae26
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF file was detected as malicious by ML classifiers and ClamAV, specifically flagged as a phishing trojan. It contains an embedded URI pointing to 'https://traffking.ru/123?utm_term=thermarest+z+seat+canada', which is likely used to deliver a malicious payload or phish for credentials. The document body, though heavily obfuscated, suggests a product listing context, aligning with common phishing lures.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://traffking.ru/123?utm_term=thermarest+z+seat+canada PDF link annotation
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://static1.squarespace.com/static/5fc0fe012e537a05ef0995e2/t/5fce9d215d76fd1ed3574754/1607376161894/axes_io_mod_apk_unlimited_money_download.pdfIn PDF document text
    • https://s3.amazonaws.com/ropidadegaxut/pagorigavubilizemapama.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc58cd5e9fc3622d54176b0/t/5fd6bf0f72b1137fa9840e79/1607909138098/guided_fishing_trips_lake_conroe.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbdfc293570fb44d1c92b23/1606286378515/sumadejakukodakokafam.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc1bb67bdb33045eec822d5/t/5fd01daf6cbf29106bf0b48a/1607474608603/dinitusubolasobepererem.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3c9ed201-89e7-47c2-b330-f44806739456/kalimonipitugorelurovij.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5902016c-7195-4900-a927-af753d4a5e90/123movies_uncut_gems_2019.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/334b41f2-8b9d-4f09-8ae6-58050a5194d4/viribaxokupubokabinuv.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7e61bdfe-e294-42e3-b32d-c83f2fe96e47/type_1101_police_light_flashlight_reinforced_manual.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fcebba1b44223045ec9a9d5/t/5fd0134d349c9408591b309c/1607471950422/anime_x_wallpaper_ios.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e9f3550c-e49d-4799-8704-6101850ae133/mc_command_center_pregnancy.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ef146c81-3554-497e-894e-d0920133bea5/element_riddles_1_answers.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc552cfab79f442f246e6cc/t/5fd1b28d8185f4776a0bdd75/1607578254090/togifu.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc50a730b6b03258f4ffca1/t/5fc769c9a3696915e22507f4/1606904266901/34636191328.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_off0000b1e5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB1E5 5148 bytes
SHA-256: a06f8991fb0357a344818a6d451c4009fee385d5250825eeecd7e0535973bcbc
font_01_sfnt_off0000c336.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC336 9684 bytes
SHA-256: 55345ac813a073955dd330141137496d164b3a6a11fda81ee5fc3c9a4687946b

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