Malicious PDF — malware analysis report

Static analysis result for SHA-256 1d2030e66dae7fed…

MALICIOUS

PDF

74.9 KB Created: 2021-03-23 19:12:45 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9a00064622cfc96acccf02ddd761bb50 SHA-1: 1fc026cb40fd378abf67ea401fa3ed070701a944 SHA-256: 1d2030e66dae7fedcb2a6f0337a5a8b53c7a3bbcd7cbb02ba0751ab0b5cbf27b
96 Risk Score

Malware Insights

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

The file is a PDF document flagged as malicious by ML classifiers and ClamAV. It contains an embedded URL that leads to a suspicious domain, likely intended for phishing or malware distribution. The document body, though heavily obfuscated, contains text related to legal documents, reinforcing the phishing lure. No scripts were extracted, but the presence of external URIs and the overall malicious classification strongly suggest a phishing attack vector.

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://xajibur.ru/award?keyword=cerere+cazier+judiciar+persoana+juridica+pdf
    • https://static.s123-cdn-static.com/uploads/4392647/normal_5fe42781e46cf.pdf
    • https://static.s123-cdn-static.com/uploads/4425737/normal_600730fd2ef38.pdf
    • http://youtube-subscribes.com/clinical_pharmacology_and_therapeutics_questions_for_self_assessmentiid9r.pdf
    • https://cdn-cms.f-static.net/uploads/4464527/normal_6026228823633.pdf
    • http://nakanilo.club/how_to_learn_string_theorybhvzx.pdf
    • https://static.s123-cdn-static.com/uploads/4495390/normal_5ff89e59f3516.pdf
    • https://cdn-cms.f-static.net/uploads/4385614/normal_6056a56dafec6.pdf
    • https://cdn-cms.f-static.net/uploads/4409627/normal_60436b5ab8393.pdf
    • http://azorocheat6.xyz/amazing_bible_timeline_with_world_historyi7pen.pdf
    • http://sezejawi.mypressonline.com/xuxulojelifu.pdf
    • http://notdull-eng.online/48153960697h3jfv.pdf
    • http://nazhivy.net/30519221754rmvs4.pdf
    • http://globalsafegroup.com/sofubafijegixal69.pdf
    • http://businessoutsourcing.info/dead_trigger_movie_2017_downloadscgr6.pdf
    • http://watertea.space/pemefevebadivoluvuboludetw5mmj.pdf
    • http://kafujaguvo.mygamesonline.org/3431123085.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://takidodaw.rf.gd/57603440235.pdf
    • http://rokijer.epizy.com/tuxikiketuvunojas.pdf
    • http://tetexamafikej.epizy.com/ariston_water_heater_instruction_manual.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_off0000e56e.bin
7e26539f53708c1075ada8175cc13245ce445ced4d6a0f88c748668b4c111047
pdf-font-stream PDF embedded font (sfnt) at offset 0xE56E 5148 bytes
font_01_sfnt_off0000f70b.bin
b58d6bdc2c1ba3f35d6215d7cb749d80d3abd7d6c1382928faec1f0bf10e2e46
pdf-font-stream PDF embedded font (sfnt) at offset 0xF70B 11516 bytes