Malicious PDF — malware analysis report

Static analysis result for SHA-256 58a64da4027f47f1…

MALICIOUS

PDF

69.7 KB Created: 2021-02-17 19:42:38 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 4748d4d995d60c4bb1f1287c27e2cf27 SHA-1: 3ced612d5fbd0935882502814ed06ecc8ddd5064 SHA-256: 58a64da4027f47f14059ca85dd44711b65477214fd00d79bb8a93d6f781c9523
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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 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://jacksth.ru/123?utm_term=beats+by+dre+studio+wireless+adapter PDF link annotation
    • https://fuvepuzineg.weebly.com/uploads/1/3/4/4/134463404/gomora.pdfIn PDF document text
    • https://jotipipadazazo.weebly.com/uploads/1/3/4/3/134319758/toxipaj.pdfIn PDF document text
    • https://pupifino.weebly.com/uploads/1/3/0/7/130776741/roladasejalajud.pdfIn PDF document text
    • https://cdn.sqhk.co/gujadozede/Lghggw8/96195525667.pdfIn PDF document text
    • https://jufasoxoko.weebly.com/uploads/1/3/5/3/135315704/7e28b811014.pdfIn PDF document text
    • http://xapepinozex.22web.org/agneepath_movie_deva_shree_ganesha_song.pdfIn PDF document text
    • https://cdn.sqhk.co/jirudumom/hcd4jcB/transformers_robots_in_disguise_season_4_episode_14.pdfIn PDF document text
    • https://cdn.sqhk.co/zasemewiti/hbpVMG8/lego_star_wars_tfa_niima_outpost.pdfIn PDF document text
    • https://cdn.sqhk.co/norifasil/nOhckhe/snake_in_toilet_bowl_thailand.pdfIn PDF document text
    • https://cdn.sqhk.co/fuvebopeweb/Qif0jbs/atif_aslam_new_song_2019_coke_studio.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/kifutizijebuj/22780648916.pdfIn PDF document text
    • http://zetitovafe.rf.gd/gimivesoririsufave.pdfIn PDF document text
    • https://s3.amazonaws.com/lukepepe/indianapolis_cbre_market_report.pdfIn PDF document text
    • https://s3.amazonaws.com/tizowodifi/72155333084.pdfIn PDF document text
    • http://banodinetawapi.rf.gd/ebook_reader_for_windows_8._1.pdfIn PDF document text
    • http://gesulobanaxa.rf.gd/worksheet_12-_3_inscribed_angles_answer_key.pdfIn PDF document text
    • https://s3.amazonaws.com/jozetej/lusibufosopadis.pdfIn PDF document text
    • http://xevikosurozogin.rf.gd/apache_ant_salesforce.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_off0000cf7e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCF7E 5336 bytes
SHA-256: fda792036dfc76eaa251c83555a64f676fdab34ab7745e95c88885f6df0037b7
font_01_sfnt_off0000e1c2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE1C2 11652 bytes
SHA-256: 3fc50e60b1507f8714831aae4e3056c5ac0ecbd21becef93dfff9e4dcaa534e6