Malicious PDF — malware analysis report

Static analysis result for SHA-256 81edac9b4c95661a…

MALICIOUS

PDF

69.7 KB Created: 2021-03-19 05:22:37 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: bb4034d18029058496bd2b4eafcadf0f SHA-1: 2864a6a67d45ab980fc97d0ef2ad32ddb85e13ee SHA-256: 81edac9b4c95661abb5b624d80572c51a4553aa735f0d8bfdb58294c130717af
96 Risk Score

Malware Insights

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

The file is identified as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The presence of an external URI pointing to 'fokemale.ru' suggests a phishing or malware distribution attempt. While no scripts were explicitly extracted, the PDF structure and embedded URLs are indicative of a malicious document designed to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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://fokemale.ru/strik?utm_term=bow+tie+dog+collar+nz
    • http://clipshd.design/can_office_2010_run_on_windows_xpsepe2.pdf
    • https://cdn.sqhk.co/zavilisuga/zAWidPk/dead_man_walking_jeremy_camp_ringtone.pdf
    • https://cdn.sqhk.co/xibetevoxaj/0MGFhg4/sago_mini_farm_mod.pdf
    • http://kusoxesarudomu.22web.org/applied_mathematics_3_kumbhojkar.pdf
    • https://cdn.sqhk.co/dagozuwemep/cV6ikw6/lixesezutilijesuxef.pdf
    • https://cdn.sqhk.co/sevijeruba/fhif8jj/sonny_gray_stats_by_game.pdf
    • https://cdn.sqhk.co/wadebekop/iiiG5gi/bamadufom.pdf
    • https://cdn.sqhk.co/farukisinu/tlidjcr/terranova_test_kindergarten.pdf
    • http://raftgjgr.space/362732533312ro5i.pdf
    • http://study-english-04.space/is_tableau_free_for_studentsk0cov.pdf
    • http://gmetry.online/la_divina_commedia_di_dante_alighieri_inferno9z0ui.pdf
    • http://rexirututesopew.iblogger.org/jevajiborusor.pdf
    • https://cdn.sqhk.co/luvutagawata/chiggu9/ball_in_water_hazard_2019.pdf
    • http://wusazododapir.iblogger.org/37292633485.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/fobupojowojon/pifamenif.pdf
    • https://s3.amazonaws.com/sezewu/azadi_movie_audio_song.pdf
    • http://wupejuxudeg.rf.gd/autodesk_eagle_user_manual.pdf
    • https://s3.amazonaws.com/tevigotu/google_docs_executive_summary_template.pdf
    • http://numapev.rf.gd/46906017884.pdf
    • http://nizulodezif.rf.gd/93331036674.pdf
    • http://zitabodubelaru.epizy.com/vector_brochure_design.pdf
    • http://togotavasokuzez.epizy.com/line_6_toneport_ux1_review.pdf
    • http://fikupamipevow.rf.gd/refar.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_off0000d0d9.bin
0ee3ce1503614c0fabbbeb75288f2e20427abcbb20982b25df0995fe14102705
pdf-font-stream PDF embedded font (sfnt) at offset 0xD0D9 5120 bytes
font_01_sfnt_off0000e26f.bin
0c1179c880ac49fd6308173d8596ff8d706e591658b76a8ee798e402df3f754d
pdf-font-stream PDF embedded font (sfnt) at offset 0xE26F 11072 bytes