Malicious PDF — malware analysis report

Static analysis result for SHA-256 3b299a96816c8313…

MALICIOUS

PDF

91.7 KB Created: 2021-03-06 14:40:54 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-13
MD5: 11ba42464d68b8200736d449b47925c4 SHA-1: 389e7fb78d7a4549df9c99b883fd0414e2e47afa SHA-256: 3b299a96816c8313e8158bf9245671356ebda83e85b7c263f3b4578d816005dd
96 Risk Score

Malware Insights

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

The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The embedded URL points to a suspicious domain, likely a phishing site designed to trick users into providing sensitive information. No scripts were extracted, but the PDF structure itself contains the malicious URL.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://soxebez.ru/wix?keyword=capsim+margin+analysis+tutorial+answers PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4403429/normal_603e40d6ce52d.pdfIn PDF document text
    • http://opencabinets.xyz/butepixozonekerzjbfr.pdfIn PDF document text
    • http://in-arenas.com/90558870411nd8cr.pdfIn PDF document text
    • http://docita.fun/bhagmati_telugu_movie_free_hddkv9t.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4454544/normal_60297cbe2da90.pdfIn PDF document text
    • http://ital-tess.space/jifazonuro2oz34.pdfIn PDF document text
    • http://godubumoze.iblogger.org/darolaworaxedirotolafukum.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4496607/normal_6021c96174d2e.pdfIn PDF document text
    • http://polystate.ru/single_cycle_multi_cycle7r4gv.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4377403/normal_603e935eded5c.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/wupixufekijax/barefoot_in_the_park.pdfIn PDF document text
    • http://wobudesupak.epizy.com/ielts_essay_writing_samples_band_9.pdfIn PDF document text
    • https://s3.amazonaws.com/bopuxosavubare/rudimugoluwotogipewiw.pdfIn PDF document text
    • https://s3.amazonaws.com/mozirolinitaje/wivizibodax.pdfIn PDF document text
    • https://s3.amazonaws.com/jumedemimo/sapizifepiz.pdfIn PDF document text
    • http://gisizuxororex.epizy.com/permaculture_a_designers_manual_free.pdfIn PDF document text
    • https://s3.amazonaws.com/luropiw/acestream_player_android.pdfIn PDF document text
    • https://s3.amazonaws.com/mejobu/anokha_bandhan_songs.pdfIn PDF document text
    • http://tofawazod.epizy.com/63322535916.pdfIn PDF document text
    • http://tuwafexom.epizy.com/bootstrap_4_html_template_free.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_off00011e69.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11E69 3440 bytes
SHA-256: 76b89860cad36a3600bd32535031e34915490d62b78d05476f95472ed47112e0
font_01_sfnt_off00012ab8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12AB8 5240 bytes
SHA-256: de2c6b8fb3159cbb94f6ca297bcb8f49811db9993c25aad7ede27611b059b71c
font_02_sfnt_off00013c83.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13C83 10808 bytes
SHA-256: b7f464af0a0554c4db6a94b6aa647caf40e9397367e1d609dcbf5b926417c02c

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