Malicious PDF — malware analysis report

Static analysis result for SHA-256 cd154f02222fe63c…

MALICIOUS

PDF

69.2 KB Created: 2020-12-09 21:33:58 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: ec3ac564d6d8583ac0d15789db6e833e SHA-1: 1d44b4145524ae44625b788183eb82f69e43cdea SHA-256: cd154f02222fe63c5effa04a815ef448c3a6ce3ada35f4a488184e21dacda31a
254 Risk Score

Malware Insights

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

The PDF contains numerous links, including a link farm and a redirector to a malicious domain. The ML classifier and ClamAV detection strongly indicate malicious intent. The presence of embedded URLs and the nature of the heuristics suggest this document is designed to lure users to malicious infrastructure, likely for phishing or to download further malware.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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://ggtraff.ru/aws?utm_term=castlevania+harmony+of+despair+ps3+iso In PDF document text
    • https://s3.amazonaws.com/sazariwapa/18646329706.pdfIn PDF document text
    • https://numeroluxovuz.weebly.com/uploads/1/3/4/7/134733954/0abf7fc01e6.pdfIn PDF document text
    • https://s3.amazonaws.com/tadovu/beginning_morphology_and_syntax.pdfIn PDF document text
    • https://s3.amazonaws.com/lanowilovuviwib/badupezujetamosesezijomi.pdfIn PDF document text
    • https://s3.amazonaws.com/zuponefi/disneyland_california_weather_report.pdfIn PDF document text
    • https://vexepagofebove.weebly.com/uploads/1/3/4/8/134866030/nipove_vetuxoravupo_desegutadidif_mupifip.pdfIn PDF document text
    • https://tivakoxidedopa.weebly.com/uploads/1/3/0/7/130776298/sigamo.pdfIn PDF document text
    • https://s3.amazonaws.com/fuzafuzeruwit/lumojedojew.pdfIn PDF document text
    • https://s3.amazonaws.com/zunaduxa/anno_2205_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/davolazupivowi/tojuxuletasojuzitagasi.pdfIn PDF document text
    • https://zosupexaduj.weebly.com/uploads/1/3/0/7/130738593/7a320c21b2f8.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/5fc5d156c89e1c4b8fe05cfa/t/5fc9425f56acec624b6bf93a/1607025247515/soccer_hero_apk_mod_2020.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbe10243c02f22b9dd4ef1a/1606291493041/spotify_without_ads_apk.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc78cbdd2523e4b70c2822a/t/5fcb58c8b6b7366152f72f1d/1607162057220/music_player_app_for_android_tv.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc64899f9866f3fd2f86f4e/t/5fc847117ff5a343ebefb3c5/1606960913670/bitdefender_mobile_security_antivirus_full_apk.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc28126d49dd124473e558a/t/5fc6bc88c7c45a5eaf8e5ab8/1606859914276/pumateguzagolob.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000bb2b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBB2B 5512 bytes
SHA-256: 60ddb73b8986d30b754417ea60c6bbd6f53cf67d71e686ed3bab2eaec3fecd76
font_01_sfnt_off0000cdcd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCDCD 10340 bytes
SHA-256: b20468cf24a7dfd63f49c02274b5ed37fe9902e17cdd3557ff16214bfc3402dd
font_02_sfnt_off0000f15f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF15F 16312 bytes
SHA-256: b2563e85233037e3c2780690ed1455257f868516b5a962e54e6ffe29314c9cb1