Malicious PDF — malware analysis report

Static analysis result for SHA-256 6f2c0a2ead5c9f40…

MALICIOUS

PDF

67.0 KB Created: 2020-11-26 03:30:47 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 899c7b14e70a3ff2d35430393e8a94e5 SHA-1: 13fe457afc8f43e405fd8f0114068359c629a45d SHA-256: 6f2c0a2ead5c9f4067390b01bdf79e39f3765ab32ad5ac2e1a3ee6d95076acf9
214 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with at least one identified as a malicious redirector. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or distributing further malware. Although no scripts were explicitly extracted, the PDF structure and embedded links suggest an attempt to redirect users to malicious infrastructure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • 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.
  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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/strik?utm_term=autel+maxidas+ds708+update
    • https://nijomusuvul.weebly.com/uploads/1/3/4/6/134671469/ramutilivavirad.pdf
    • https://depasosuva.weebly.com/uploads/1/3/4/4/134483816/xesofafexira_xugikug_tigamibozex_nedizi.pdf
    • https://ziwegakesamud.weebly.com/uploads/1/3/4/4/134468237/d562e8e95.pdf
    • https://rifeseroki.weebly.com/uploads/1/3/4/6/134698736/1758205.pdf
    • https://fadusoga.weebly.com/uploads/1/3/0/7/130739873/dezasujul_kirolowepepuvab.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/140ecfad-1a98-4b54-976a-0e4a51ce81e6/fotememuzebidu.pdf
    • https://s3.amazonaws.com/fadedosi/step_brothers_full_movie_script.pdf
    • https://s3.amazonaws.com/susonanezaj/hoja_de_registro_de_presion_arterial.pdf
    • https://s3.amazonaws.com/pazifetanegapu/aditya_hridayam_hindi_format.pdf
    • https://s3.amazonaws.com/bifamomove/tomb_of_annihilation_4chan.pdf
    • https://s3.amazonaws.com/wonoti/16409879965.pdf
    • https://uploads.strikinglycdn.com/files/20993e1c-de6b-4a29-9f11-a77442fd8a24/el_diario_de_eliseo_jj_benitezws.pdf
    • https://s3.amazonaws.com/kiwopusafize/persona_4_golden_yosuke_social_link_guide.pdf
    • https://s3.amazonaws.com/jamokaroxoj/36730910683.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c66a.bin
b3f64539dcec9493583a488bbf28209466ac81b448145917f9d0d3351f17a135		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC66A 5484 bytes
font_01_sfnt_off0000d903.bin
763b2849780508fd8e09d9c8f1085811fd02727e5e8f6f017d1be21e351db195		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD903 11160 bytes

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