Malicious PDF — malware analysis report

Static analysis result for SHA-256 e33257a23609a333…

MALICIOUS

PDF

108.7 KB Created: 2021-02-25 13:45:15 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 637e61e76463fa91d81878a075bd25d0 SHA-1: 66e5cef83fc16892b1f3c7ab8b2379d0e644424a SHA-256: e33257a23609a3331581d5696408e69323d99a0a5668beadef1bc221fdf3e7da
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 0.9998

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://baarspo.ru/wix?keyword=proform+500+cx+treadmill+manual PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4452373/normal_6034861291771.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4425256/normal_5fdf254d48348.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4453718/normal_5ff70a4396ac1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4483089/normal_600e5ba8ed20d.pdfIn PDF document text
    • http://meine-gebuhrenfrei.com/lapuruzomagosetitonugagibrc7s.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4409394/normal_5fe92e42c0552.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4392463/normal_5fcb1810ba858.pdfIn PDF document text
    • http://dihtyar.online/kekometipavijopeotsr9.pdfIn PDF document text
    • http://vulevon.22web.org/19969496112.pdfIn PDF document text
    • http://gufutaca3.xyz/rupezijojutebekaxs7wl.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/kakef/widodepo.pdfIn PDF document text
    • https://s3.amazonaws.com/gelawiweza/vidmate_for_ios_free.pdfIn PDF document text
    • https://s3.amazonaws.com/tesotiwapax/how_to_reset_carrier_furnace.pdfIn PDF document text
    • https://s3.amazonaws.com/dowadotiju/criminal_case_full_hile_apk.pdfIn PDF document text
    • http://zamutuxagen.epizy.com/catholic_bible_in_arabic.pdfIn PDF document text
    • https://s3.amazonaws.com/pigolo/android_studio_gradle_sync_failed_already_disposed.pdfIn PDF document text
    • https://s3.amazonaws.com/kijelopazekune/fugixezupo.pdfIn PDF document text
    • http://sizilave.epizy.com/hockey_game_poster_template.pdfIn PDF document text
    • http://rajiwewovipu.epizy.com/9418248237.pdfIn PDF document text
    • http://mogerokefo.epizy.com/how_to_connect_my_sony_tv_to_bluetooth_speaker.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_off00015dd9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15DD9 5324 bytes
SHA-256: 7b9545bc658ba3ae1c37bdf2d4e862bb2002e9e62f9d9d1ec5317c2456f28fc1
font_01_sfnt_off00016fea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x16FEA 16864 bytes
SHA-256: 62086e8bb227185b888b876daf881b549c1914fb2c59df9e8a6cf09f3397abec

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