Malicious PDF — malware analysis report

Static analysis result for SHA-256 86e7c19bbd4b3e3c…

MALICIOUS

PDF

71.5 KB Created: 2021-03-10 13:44:16 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c56c7471dd76348efed7b83b16168ee2 SHA-1: cd428367003bc3e7ea1c8f8d9f9a67bb87ce09ac SHA-256: 86e7c19bbd4b3e3c541a78ca9eb405dac5383e3bd67a33d462b2f78998f23bbb
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 payload. It contains an external URI pointing to a URL that is likely part of a phishing campaign, disguised as instructions. The presence of embedded URLs and the overall detection suggest the document is designed to redirect users to malicious sites for further exploitation.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://vilenefex.ru/wix?keyword=little+green+machine+proheat+instructions
    • https://cdn.sqhk.co/zexoribuj/jKjegoB/what_farm_animal_are_you_playbuzz.pdf
    • http://yourdesk.website/gopawidirexululasufivu049xf.pdf
    • https://cdn.sqhk.co/maxegugej/ctjcGjh/xawekufilefukabijozuf.pdf
    • https://cdn.sqhk.co/jivomawufem/ibNQijI/16745954299.pdf
    • https://cdn.sqhk.co/linidivez/eAhddR4/sipelife.pdf
    • http://pifowovumuwe.medianewsonline.com/15284102559.pdf
    • http://witinub.iblogger.org/nasutavirazos.pdf
    • https://cdn.sqhk.co/pevizopubok/jjajjgg/hot_wheels_games_to_play_online.pdf
    • http://leyloften.online/t_maxx_2.5_horsepowernj6ou.pdf
    • http://basepati.22web.org/13969180841.pdf
    • http://rollernefritmassage.xyz/dante_paradiso_canto_xvii_testo07nef.pdf
    • http://umniashka.ru/jesowukapukowugif6qyb.pdf
    • http://sugameloxufe.mywebcommunity.org/57826248856.pdf
    • http://nnorm-id.com/discord_link_formatting1kt3q.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/kelageketisefuv/fuvisovotediw.pdf
    • http://benibabu.rf.gd/what_is_a_true_rms_clamp_meter.pdf
    • http://muxomak.epizy.com/citizenship_application_guide_canada.pdf
    • https://uploads.strikinglycdn.com/files/af6e3642-1f46-4630-b51c-0dc7333da4f5/vibedalubogugitez.pdf
    • https://s3.amazonaws.com/dinigugaxej/dazidujalivi.pdf
    • https://s3.amazonaws.com/rodiligarexo/free_film_streaming_apps_for_android.pdf
    • https://uploads.strikinglycdn.com/files/1988765e-17a6-466d-a871-2e4571aef1de/fundamentals_of_heat_and_mass_transfer_7th_edition_incropera_solutions_manual.pdf
    • https://uploads.strikinglycdn.com/files/491d8231-e233-4ab2-aafe-30edad4fbd55/troy_bilt_self_propelled_mower_with_honda_engine.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_off0000dbac.bin
5d5d99aa958a7305db32c3f40416ce90c85a48766e754824efc516df1b72cb78
pdf-font-stream PDF embedded font (sfnt) at offset 0xDBAC 5288 bytes
font_01_sfnt_off0000ed7c.bin
85a44d60c4d2a23db84bc453b89257148629e39f71f57d01021e88add4434c7d
pdf-font-stream PDF embedded font (sfnt) at offset 0xED7C 10168 bytes