Malicious PDF — malware analysis report

Static analysis result for SHA-256 7f8e6de0e0240c85…

MALICIOUS

PDF

72.3 KB Created: 2021-02-15 22:40:21 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 21210cbec7173730d7cb8afd7902d904 SHA-1: dbac4cd2e13bde651e00ff1ae8e54b7c7bd63498 SHA-256: 7f8e6de0e0240c85ed2a3b2a0ad3c7972ff8ed50744cc98db9e3084a9ddeb0fa
96 Risk Score

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

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://jottigo.ru/strik?utm_term=chick+fil+a+online+application+pdf PDF link annotation
    • https://xopaluwejur.weebly.com/uploads/1/3/1/8/131857284/rekagozivetam.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4457000/normal_5ff9a9b803c1c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4462980/normal_5fdacb46eef07.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4420034/normal_5ff8c31b97ee5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4406166/normal_60191ab35178f.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4368752/normal_5fefcc9e0bcf3.pdfIn PDF document text
    • https://cdn.sqhk.co/fuwuwoki/hkjiLjd/final_fantasy_7_remake_pc_port.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383794/normal_6010eec800703.pdfIn PDF document text
    • https://cdn.sqhk.co/kigaratak/ghjgoPd/potizotunarorowaraxedu.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4483856/normal_5fdea394a45b1.pdfIn PDF document text
    • https://cdn.sqhk.co/wuvexudid/jvmXjcZ/yummy_cubes_cheats.pdfIn PDF document text
    • https://cdn.sqhk.co/xowuzaseku/OMiftic/76724977229.pdfIn PDF document text
    • https://sufunisukexe.weebly.com/uploads/1/3/1/3/131381546/bifidisuwose.pdfIn PDF document text
    • https://cdn.sqhk.co/gadewekunel/fhcZjdS/i_am_a_warrior_lyrics_patty_smyth.pdfIn PDF document text
    • https://cdn.sqhk.co/juduxijumijo/dDjfi7k/hockey_goalie_masks_used.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://vedulojut.epizy.com/blame_movie_anime.pdfIn PDF document text
    • http://zitejilid.epizy.com/short_guided_meditation_script_for_relaxation.pdfIn PDF document text
    • http://lidesesepaz.rf.gd/many_voices_one_world_report.pdfIn PDF document text
    • http://zenujasope.epizy.com/sfp_glc-_sx-_mmd_datasheet.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000de9c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE9C 4936 bytes
SHA-256: c8485d76da7b6f1d15382cc90e48b10933c112e9c8f828e69d04daff65c15d7c
font_01_sfnt_off0000ef66.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEF66 10664 bytes
SHA-256: 8a348de1b84dff9a1d13917ea245d71888fb30f6eb2e13b504d3c6a9124ab06a