Malicious PDF — malware analysis report

Static analysis result for SHA-256 60637d15fcc5ded7…

MALICIOUS

PDF

80.5 KB Created: 2021-02-04 22:41:53 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: bbafcd6ae7bca65a0a705d807ebc3958 SHA-1: 73e209c865402bd3a7312d1350ec26f83ad57421 SHA-256: 60637d15fcc5ded7a1de8ccc1cc5f29ded9d3d59dd012b41c238048d3bd6c9dc
96 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ML classifiers and ClamAV, indicating a phishing or trojan threat. It contains an embedded URL pointing to a suspicious domain, likely intended to host further malicious content or redirect the user. The document body, though partially corrupted, suggests a lure related to historical topics to mask the malicious intent.

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://seumenha.ru/123?utm_term=negative+consequences+of+the+columbian+exchange
    • https://static.s123-cdn-static.com/uploads/4411001/normal_60021b0cac938.pdf
    • https://static.s123-cdn-static.com/uploads/4380674/normal_5fcf6dcd6b6fa.pdf
    • https://cdn.sqhk.co/xedufoga/j6jYhfm/rocket_music_player_premium_apk.pdf
    • https://static.s123-cdn-static.com/uploads/4371010/normal_6008b15896d72.pdf
    • http://6gusevshop.space/59142234619wuxyb.pdf
    • http://playmarket-online.com/hd_screen_recorder_for_pc_onlineprn5m.pdf
    • https://cdn.sqhk.co/libarazituw/cGghggA/the_fancy_pants_adventures_world_1_remaster.pdf
    • https://cdn.sqhk.co/dubutemaruxu/jTBW3ii/love_quotes_for_her_from_the_heart.pdf
    • http://constructionhouse.info/bexabisessnph.pdf
    • https://cdn-cms.f-static.net/uploads/4411498/normal_5fd8a32430ad0.pdf
    • http://deutschebank-meine.com/cara_belajar_sahams5mzt.pdf
    • https://cdn-cms.f-static.net/uploads/4479715/normal_600d1bc6644f4.pdf
    • https://static.s123-cdn-static.com/uploads/4380411/normal_5fe39f53ce773.pdf
    • http://yoga-fitness.space/zejokamesololelegya52k.pdf
    • https://static.s123-cdn-static.com/uploads/4414166/normal_5ff619445fb89.pdf
    • https://cdn.sqhk.co/zogobadakedu/ajjRghf/costumes_near_me_open_now.pdf
    • http://shishkin-seed.xyz/wefalumiwivakx540.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://fekamenuzexogam.epizy.com/associative_learning_theory.pdf
    • http://joluror.rf.gd/problem_solving_worksheet_ks2.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_off0000fd0f.bin
d1b7b595c9f0137abf79756b342d90dfd2bbe12cbe155eda5b447dad65182d63
pdf-font-stream PDF embedded font (sfnt) at offset 0xFD0F 5564 bytes
font_01_sfnt_off00010ff4.bin
c33542d96097f62c4ce7a3fd547c565afb7139566967e78d660cb4b1bece5f13
pdf-font-stream PDF embedded font (sfnt) at offset 0x10FF4 10604 bytes