Malicious PDF — malware analysis report

Static analysis result for SHA-256 0717e03e07a380a5…

MALICIOUS

PDF

67.0 KB Created: 2020-12-14 21:45:52 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-11
MD5: 8fa3663a94e8a87367567367786a4d04 SHA-1: b66d23559fa88c4c9ff71e7303472caf4fa2d031 SHA-256: 0717e03e07a380a53725268e0146d2827df4bf4dcd9c64a92d192ce491b7b5ad
214 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with one identified as a known malicious redirector. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or malware distribution. The presence of embedded links suggests an attempt to direct users to malicious infrastructure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • 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.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://gettraff.ru/123?utm_term=ranku+darbo+papuosalai+ant+kaklo In PDF document text
    • https://fikupekuxugo.weebly.com/uploads/1/3/4/6/134612485/mavepajoku_bisavezozibotax_nabamonizibu.pdfIn PDF document text
    • https://bomazadoxu.weebly.com/uploads/1/3/4/4/134474586/tobibexipem-rotagavefuri-saworuj.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://static1.squarespace.com/static/5fce0e7fe5cb4c30585dce04/t/5fd1afb3133bcb3b889c1a51/1607577529836/linkin_park_nouvel_album_2020.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc67d6924b06a7eb3261b77/t/5fd2239c99fe644e8a6900de/1607607196533/free_nds_emulator_for_android_6.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc390e0f9866f3fd2e4e56d/t/5fce77288a454103bf75fb46/1607366440069/47061467646.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0f66f116eb00e3c4c456d/t/5fc38e4e3f75b166434232aa/1606651472294/wadalafurifog.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc06ef3116eb00e3c49974f/t/5fc3591a3570fb44d16ddb87/1606637852019/moluvotamerezabafuzib.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc280b3405d5340f333d31f/t/5fc55d88bc819f1cf48bf019/1606770056444/the_practice_of_statistics_4th_edition.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbf69df1972c46e3c9729a5/1606379999821/10806082501.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc1050bab79f442f22a407f/t/5fc9047ad53fa24eb47771a3/1607009402959/tiktok_star_died_from_corona.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0e844cd1e280355d45049/t/5fc13a8a4f983757200c5d0c/1606498954950/17084035324.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0d00e405d5340f3291e5b/t/5fc0d84d4e98326c023008b8/1606473811813/wavuvitunebore.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fcedda7affad1251da5f8bb/t/5fd12857a2f0bc19cc4d16ce/1607542873181/jopupamaxuzezisejodok.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0d6092e537a05ef08bc6e/t/5fc6d2a33d56556d142a67c7/1606865572703/taichi_bubble_tea_military_road_niagara_falls_ny.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0e940bd14ff0dd29cb4d3/t/5fc0f44f08845d0924ac81e1/1606480976077/shoe_heel_pads_cvs.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000bb5f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBB5F 5164 bytes
SHA-256: 9d38c50751f9b25f3b8611ed42ff7a2bde56e073e445e4a422839fe3778279fd
font_01_sfnt_off0000ccf2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCCF2 3416 bytes
SHA-256: 6810d781b44ef4b965b5afe1d7f6b8cc880d2ac72f1ecb091ae7516489268e2f
font_02_sfnt_off0000da81.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDA81 11404 bytes
SHA-256: b2922c60c605cd19488e80f481bae03049df1f628f3c84d33e501a6edd58e039