Malicious PDF — malware analysis report

Static analysis result for SHA-256 62f2df24ed5b3554…

MALICIOUS

PDF

76.6 KB Created: 2021-03-22 08:31:47 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 1b7db2c448c5a1c7f16aa1f79e0adf92 SHA-1: 3404ab7c3f265d549826d54762d3a993d4d1ba20 SHA-256: 62f2df24ed5b35548bcc95cab4057a1e952c48f20a76d8d52755e6ae5ccf5f86
96 Risk Score

Malware Insights

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

The file was detected as malicious by ML classifiers and ClamAV, specifically identified as a phishing trojan. It contains an embedded URI pointing to a suspicious domain, likely intended to redirect the user to a malicious site. The document body, though heavily obfuscated, suggests a lure related to 'free t shirt order form template pdf', aligning with phishing tactics.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://druttle.ru/award?keyword=free+t+shirt+order+form+template+pdf
    • http://art-practice.org/pdf_document_translator_app_downloadmsfig.pdf
    • http://usejus.pro/what_is_the_theme_of_abuela_invents_zerofi8qn.pdf
    • http://subonus.ru/the_last_song_elton_john_karaokehgd3g.pdf
    • http://leomannapov.com/angular_new_date_format_yyyy-_mm-_dd01j9g.pdf
    • https://tumafivefaj.weebly.com/uploads/1/3/3/9/133999435/3086935.pdf
    • http://maddot.space/what_is_the_meaning_of_liminal_in_urdum6pzg.pdf
    • http://free-at.pro/bard_handbook_3.55cyed.pdf
    • http://tryici.xyz/what_is_gods_spiritual_lawc5nue.pdf
    • http://detonicinitalia.website/bible_commentaries_onlineuuifi.pdf
    • http://5coupons.info/how_to_tell_if_a_boat_battery_is_badliapx.pdf
    • https://pazudafodimaje.weebly.com/uploads/1/3/0/7/130776249/gafetuludodofak.pdf
    • https://befibexa.weebly.com/uploads/1/3/0/9/130969759/topatuta-zorimab.pdf
    • http://worldhold.online/45607474421pwydo.pdf
    • http://biomaniks.website/tutorial_lightroom_android_urbexilcdy.pdf
    • http://temilops.xyz/22612454255a6vrt.pdf
    • https://jurivulanikep.weebly.com/uploads/1/3/4/5/134525456/6159723.pdf
    • http://christinaanddavid2019.com/jujipezewupewisymg7y.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://920f4c01-5fd6-4c40-8b27-b99972fecb60.filesusr.com/ugd/d63aaf_3823ef4baba74193942751f13423707c.pdf?index=true
    • https://c84ffda1-e72a-45fa-8ce8-a771970cf326.filesusr.com/ugd/9fd656_d952e3c0a15c42759709a5039e3f820b.pdf?index=true
    • 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_off0000eff3.bin
6e911b807500f3148f0779e8051580c654c6f4425af6d93751936e7cdc01e70a
pdf-font-stream PDF embedded font (sfnt) at offset 0xEFF3 5236 bytes
font_01_sfnt_off00010197.bin
3139e4ae30b8b1011d8860f5414e3729b172733df8403caedec7bcf8f136d845
pdf-font-stream PDF embedded font (sfnt) at offset 0x10197 10408 bytes