Malicious PDF — malware analysis report

Static analysis result for SHA-256 6896d78b35c16fcb…

MALICIOUS

PDF

109.5 KB Created: 2021-03-19 03:37:42 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 30b82085f5dd58f8b891d8a92ab0e895 SHA-1: 7ffba7d643104113750b4d6d01592bf645eba7ec SHA-256: 6896d78b35c16fcbd5714b5f079d628b2eb37792e2537c1c10fb56a861deaadb
156 Risk Score

Malware Insights

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

The PDF file contains numerous external links, forming a link farm, and is flagged by ClamAV as a phishing trojan. The document body, though obfuscated, suggests a lure related to 'Marbury v Madison definition government' to direct users to a malicious URL. The presence of embedded URLs and the ML classifier's high confidence score indicate malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://jumiwimov.ru/aws?utm_term=marbury+v+madison+definition+government
    • https://static.s123-cdn-static.com/uploads/4489848/normal_5fce328a9906d.pdf
    • http://torevifij.iblogger.org/zupolesamiwokazevawo.pdf
    • https://cdn.sqhk.co/wugolekufo/Nih1jhY/rescue_mission_macon_ga_zebulon_rd.pdf
    • https://nezemugobif.weebly.com/uploads/1/3/4/5/134519414/6934926.pdf
    • https://filavemegu.weebly.com/uploads/1/3/4/8/134883773/kugamexorawugete.pdf
    • https://wogijelagorezu.weebly.com/uploads/1/3/4/0/134096035/75483c7.pdf
    • https://fomodaduvi.weebly.com/uploads/1/3/4/7/134700625/dolivesowag.pdf
    • http://jevufoduxixan.22web.org/wherever_you_are_ambitions_japan_tour.pdf
    • https://metasabuvaro.weebly.com/uploads/1/3/2/6/132681671/zetelage.pdf
    • https://betozuwozoz.weebly.com/uploads/1/3/4/1/134108580/riporizesenonu_gewofexovonixo_jajilikaj.pdf
    • https://cdn-cms.f-static.net/uploads/4424689/normal_6027e4ac89a4b.pdf
    • https://visofebofoxofub.weebly.com/uploads/1/3/0/8/130814652/rubaxeso.pdf
    • https://jaxebenub.weebly.com/uploads/1/3/4/2/134266064/viwulo.pdf
    • https://cdn.sqhk.co/vofonowul/kjgijhl/darejelobir.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • http://digasima.rf.gd/job_card_ka_full_form.pdf
    • http://ragomoxos.rf.gd/norolulenipupedalajogebi.pdf
    • http://kileduf.epizy.com/bobixa.pdf
    • http://jukatuvofijeriw.rf.gd/lagu_bensound_dreams.pdf
    • http://rosukijabadizi.epizy.com/lease_agreement_termination_template.pdf
    • http://lozadubevapoke.epizy.com/spider_man_game_apk_for_pc.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00015ec8.bin
18c2c252a47efdb2d2722ba0593883e3630d0933b02527ac99f427ccfe83bfde		 pdf-font-stream PDF embedded font (sfnt) at offset 0x15EC8 5384 bytes
font_01_sfnt_off00017111.bin
04c54f31584c7b08ea92271e597bdcb1a163012db994c7f62530b4f829843dfa		 pdf-font-stream PDF embedded font (sfnt) at offset 0x17111 11492 bytes
font_02_sfnt_off000197fc.bin
05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176		 pdf-font-stream PDF embedded font (sfnt) at offset 0x197FC 4324 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.