Malicious PDF — malware analysis report

Static analysis result for SHA-256 205bcc2845feef3f…

MALICIOUS

PDF

69.3 KB Created: 2021-03-07 14:43:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 284ae165e83ddf67f7142431c30b1b24 SHA-1: c0642929eab0892a909c73b9408d916365e0afdd SHA-256: 205bcc2845feef3fef61f77470e2878ac26b13378a2265415c4fd9c948eae873
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://jottigo.ru/wix?keyword=bruce+lee+artist+of+life+pdf+download PDF link annotation
    • https://lixubirenolona.weebly.com/uploads/1/3/4/6/134669397/5471362.pdfIn PDF document text
    • https://cdn.sqhk.co/menodotitit/cSEongH/pezadefu.pdfIn PDF document text
    • https://jugurapofan.weebly.com/uploads/1/3/4/3/134339640/8731054.pdfIn PDF document text
    • https://cdn.sqhk.co/nexasolonit/jjI6hhy/lego_hidden_side_summer_2020_castle_of_mystery.pdfIn PDF document text
    • https://cdn.sqhk.co/xamitarerivu/fjhdJgh/libenuf.pdfIn PDF document text
    • https://gakewejodum.weebly.com/uploads/1/3/4/9/134902465/32d85dabad8af7.pdfIn PDF document text
    • https://cdn.sqhk.co/libibajuzumu/aieggpz/livermore_bingo_granada.pdfIn PDF document text
    • https://cdn.sqhk.co/fezajuwu/ihjXhdp/tavuvijewegu.pdfIn PDF document text
    • https://pixipemojawipe.weebly.com/uploads/1/3/4/4/134459682/9344b71.pdfIn PDF document text
    • https://cdn.sqhk.co/kinemefuwa/dhidjhG/get_free_ringtones_for_my_phone.pdfIn PDF document text
    • http://zozegakipuvi.iblogger.org/list_challenge_1000_books.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://9a60fab3-6fb0-4be7-9305-b2e3cc44d963.filesusr.com/ugd/811c4f_3f2b2c0c49934579a5810daaaa1632b4.pdf?index=trueIn PDF document text
    • http://janenukexozi.epizy.com/bse_odisha_class_10_books.pdfIn PDF document text
    • https://b6c9d0de-81a1-4db9-ab7d-8a95af9e63d6.filesusr.com/ugd/b28ae2_00b7d3e643d64e59baf76bdfb431b09f.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/loranoduzuja/62002517851.pdfIn PDF document text
    • https://6d706a39-1f93-4f1a-9423-caccf7e65e71.filesusr.com/ugd/69f91f_0739718c31fe4aec8cb81f44f82f5846.pdf?index=trueIn PDF document text
    • https://e4586023-485a-43f1-9451-2d404684c5b7.filesusr.com/ugd/95ff22_27ea93580956413c88ccc5e231f9f78b.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/rixevozajixezos/xetuwirakujipisopa.pdfIn PDF document text
    • https://s3.amazonaws.com/baxunaf/benefits_of_quitting_smoking_timeline.pdfIn PDF document text
    • https://b564fea6-732e-489f-a029-a72dc6590de2.filesusr.com/ugd/6a4619_e1ac37940de24177b912cf14142343bc.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/temujonuwu/creating_word_search_templates.pdfIn PDF document text
    • https://s3.amazonaws.com/tamobalasu/human_geography_what_is_the_study_of_population.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d11f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD11F 5288 bytes
SHA-256: 7dcd43e3c221eb5f319620284a37b8e96bff0caf5cb5ad9fc7b6f357c887f0d4
font_01_sfnt_off0000e33d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE33D 10608 bytes
SHA-256: cb248a2715e8f2b5f9ad4a0a672c5a7832dced063e924323f5dc2e3a52fc8316