Malicious PDF — malware analysis report

Static analysis result for SHA-256 f457f6ea7ddeda2a…

MALICIOUS

PDF

677.7 KB Created: 2021-03-16 07:06:45 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: bddbffb91f5508c62ce1624f5719ed6e SHA-1: 94b89a9533dca16f7ba5cf378557bbfdf1656a99 SHA-256: f457f6ea7ddeda2af1e4ff0cf5b4f885188674e21ef6df4c4f5c2114bba8a182
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 0.7609

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://vilenefex.ru/aws?utm_term=pressure+conversions+chem+worksheet+13-1+answer+key PDF link annotation
    • https://cdn.sqhk.co/fufowomusixi/jiuHhzd/37354452781.pdfIn PDF document text
    • https://cdn.sqhk.co/sileluzorupo/WiUhhiQ/desojareril.pdfIn PDF document text
    • https://cdn.sqhk.co/bexuxoxabim/KLieHjd/studio_photoshoot_ideas_for_family.pdfIn PDF document text
    • https://cdn.sqhk.co/nidebuwe/ggJhjBl/doodle_jump_2_unblocked.pdfIn PDF document text
    • https://vaputonusodi.weebly.com/uploads/1/3/4/4/134493057/bogelirewoba.pdfIn PDF document text
    • https://tineminelebon.weebly.com/uploads/1/3/1/6/131606156/ladefosubegujo.pdfIn PDF document text
    • https://cdn.sqhk.co/gulifunanale/sjfNQoy/tik_tok_video_fleetwood_mac_original.pdfIn PDF document text
    • https://cdn.sqhk.co/wemorapi/e9Mx4vD/garden_balls_for_sale.pdfIn PDF document text
    • https://cdn.sqhk.co/wamefuvew/cNhuplr/bike_racing_game_download_apk20.pdfIn PDF document text
    • https://xawizavikerid.weebly.com/uploads/1/3/4/5/134525990/zijizemopugago.pdfIn PDF document text
    • https://fabidarupevonu.weebly.com/uploads/1/3/4/6/134620419/xalivaxej.pdfIn PDF document text
    • https://cdn.sqhk.co/kidatufo/16gijjx/today_s_date_in_spanish.pdfIn PDF document text
    • https://cdn.sqhk.co/rawerusiwala/JiiS6vf/moksha_yoga_toronto.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://natetiko.epizy.com/chogada_dance_performance.pdfIn PDF document text
    • https://48b7024d-7414-4593-b44d-ed892b96ad15.filesusr.com/ugd/3e5db3_3839352b791041f091cc43d2f30e8c9d.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/71d87da0-5aa7-4bc2-a971-bb30a0f859dc/87094977797.pdfIn PDF document text
    • https://8fc1c2d6-49ba-4d63-8b95-0327ef2b1627.filesusr.com/ugd/1849a1_cb02bab0769a48d6891f003c3e83aeef.pdf?index=trueIn PDF document text
    • http://tinasixubu.epizy.com/10026170764.pdfIn PDF document text
    • https://3176e400-c268-4dc0-8d69-08eae86937f8.filesusr.com/ugd/ea2f88_5da923101e44421fbef8aa6c0955de6a.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/4a38caf8-f9e4-437c-9fab-63fd3c32cdcd/how_to_do_enthalpy_change.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_off000a43f2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA43F2 5572 bytes
SHA-256: e263639f0373dcfbf1c86640eb136b0031c9b7e49563fce086ddb6c94c71ced2
font_01_sfnt_off000a56e3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA56E3 13356 bytes
SHA-256: c5ceeb94560f0047f21db86824fa0d6e488fd038ee21e0c24e702461b53c0bea

Open this report in the interactive analyzer, or submit your own file for analysis.