PDF malware analysis — malicious · 2393c5847db31cf3

MALICIOUS

PDF

75.5 KB Created: 2021-03-19 22:59:46 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 0add50d7674b160118f8ccc2f096bfac SHA-1: 21728252ffdd86d7088b82dc6dc58e3207d32f53 SHA-256: 2393c5847db31cf3a12a98545657b4ec681b45491997d3a9cdd66ca7fdcc5eae

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file contains an embedded URL that directs users to a suspicious domain, likely for phishing or malware distribution. The ML classifier and ClamAV detection strongly indicate malicious intent. The document body, though truncated and obfuscated, contains keywords related to the embedded URL, suggesting a lure to a malicious site.

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://nipisod.ru/award?keyword=insert+a+gif+into+pdf
- https://cdn.sqhk.co/maxanogefo/ibP0tha/25812662453.pdf
- https://cdn.sqhk.co/fotenulutis/fjigJhj/nenoneludugumupufuw.pdf
- https://cdn.sqhk.co/migixurej/Kx4ihyK/renolixo.pdf
- http://bibeponuvizozu.iblogger.org/advanced_excel_formulas_with_examples_ppt.pdf
- http://jikalananigopun.iblogger.org/86763693491.pdf
- http://reduslim-sito.site/lewububiwuwesusagaz3189.pdf
- http://glossywp.online/lizifetawafulonunizow8pxm.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- http://kitalanexu.epizy.com/rubber_stamp_font.pdf
- https://uploads.strikinglycdn.com/files/abbc7871-c9b2-4a9a-a239-cca6b84c2fc2/30656818093.pdf
- http://woxepakaj.epizy.com/29737541955.pdf
- http://dasufolizimifub.rf.gd/video_instagram_private_message.pdf
- http://jenesigafepi.epizy.com/arya_songs_ing_telugu_audio_songs.pdf
- https://s3.amazonaws.com/welanisowari/webojekuzuzujawadolamuxu.pdf
- https://uploads.strikinglycdn.com/files/059fd8f6-b5d6-43db-845a-c65cf6f23cb2/creative_writing_prompts_for_books.pdf
- https://uploads.strikinglycdn.com/files/b0983a9b-d4ec-45bd-aaad-13abeafe31c2/casio_illuminator_watches.pdf
- https://s3.amazonaws.com/tuxutedi/sample_biology_lab_report_on_enzymes.pdf
- https://s3.amazonaws.com/wazorixekunafob/honeywell_fire_alarm_control_panel_manual.pdf
- http://sulifuzefusuw.rf.gd/police_report_template_malaysia.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.

Filename	Kind	Source	Size
`font_00_sfnt_off0000eba7.bin` `fee7785dd86365d98fd961dce924171974696ac2914d0a4871495543c876e5ed`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xEBA7	5112 bytes
`font_01_sfnt_off0000fd20.bin` `a418e255be3d5098034eae8c41018bf66c8ac0981bc1e9bc82e5eca43c3c67d4`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xFD20	10500 bytes

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