Malicious PDF — malware analysis report

Static analysis result for SHA-256 f493a5071e6774e3…

MALICIOUS

PDF

92.9 KB Created: 2021-03-21 01:51:38 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 62630ced3137c28f350602357cbb0275 SHA-1: 96de1691ae16080e724d7bd9a65fbdc07eec0c26 SHA-256: f493a5071e6774e30bf4f4b683f2e566be022f61daa3adf5dcedd33729e9c73e
126 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://dugedepap.ru/123?utm_term=baseball+score+sheet+template+excel PDF link annotation
    • https://cdn.sqhk.co/kitujesijak/vhfiaq0/baller_shot_caller_new_song.pdfIn PDF document text
    • http://bufanono.iblogger.org/29318133442.pdfIn PDF document text
    • http://autokenn.com/zefekelasinasekirabomibbolb.pdfIn PDF document text
    • https://gegoviboz.weebly.com/uploads/1/3/4/8/134876631/kapoxom.pdfIn PDF document text
    • https://vimanofadubob.weebly.com/uploads/1/3/5/3/135304206/defuro-nafan.pdfIn PDF document text
    • https://cdn.sqhk.co/batumozi/7jbkMja/81661070759.pdfIn PDF document text
    • http://palovedu.22web.org/22737899740.pdfIn PDF document text
    • http://pink-echo.club/isotonic_vs_hypotonic_vs_hypertonic_worksheetf2g8s.pdfIn PDF document text
    • http://misstourist.info/naza_lite_upgradeh2q51.pdfIn PDF document text
    • https://losanuritajog.weebly.com/uploads/1/3/4/7/134730792/b53582e795f08.pdfIn PDF document text
    • http://kalavar.xyz/the_art_and_science_of_java_by_eric_robertsdmu52.pdfIn PDF document text
    • https://zazobowelukoki.weebly.com/uploads/1/3/0/9/130969428/lobojob.pdfIn PDF document text
    • https://xogefuvoza.weebly.com/uploads/1/3/2/3/132303221/zugipufofololikaj.pdfIn PDF document text
    • https://furimubabo.weebly.com/uploads/1/3/1/8/131856330/e1701c9.pdfIn PDF document text
    • http://everydays.space/speedway_puzzle_gamesa3qiw.pdfIn PDF document text
    • http://majafapabukores.iblogger.org/bailey_love_26th_edition.pdfIn PDF document text
    • http://buvofigutunam.22web.org/dalevewoju.pdfIn PDF document text
    • https://xemageka.weebly.com/uploads/1/3/1/3/131380316/bexemuniz_dubawolumug_baliderinis_saxutozoxeto.pdfIn PDF document text
    • https://cdn.sqhk.co/ragonujip/hj7Yygg/oscar_isaac_movies_life_itself.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://wipidomi.rf.gd/78901125462.pdfIn PDF document text
    • http://vekibavekuje.epizy.com/ribapepexesari.pdfIn PDF document text
    • http://ripomozenawigi.rf.gd/checkpoint_5100_datasheet.pdfIn PDF document text
    • http://gadojir.rf.gd/introduction_to_automata_and_language_theory.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_off00012b72.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12B72 5432 bytes
SHA-256: a8b32bc8b4f91d7acaa13e48b824a969fcaae9e08cb874e5922cd7b37ab91c26
font_01_sfnt_off00013dbd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13DBD 11800 bytes
SHA-256: cc80813943271b347927abbad7d6b4d0def6a7bb23a38ecb315efe491282ef7d

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