Malicious PDF — malware analysis report

Static analysis result for SHA-256 f30d254ae76d3b28…

MALICIOUS

PDF

70.9 KB Created: 2021-02-19 02:02:15 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 4172df31d057a61dfa956a8d5a149770 SHA-1: d6fe16758b732d8b88866c3392db52609c667148 SHA-256: f30d254ae76d3b28a4112a1e415f2a3e77e022aabc10b96b7ef40ec2e338cd18
184 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://crophysi.ru/wix?keyword=roku+disney%252B+not+showing+up In PDF document text
    • https://cdn.sqhk.co/xidafigutoxa/idwf39u/rocket_car_ball_download_pc.pdfIn PDF document text
    • http://jazeforip.22web.org/vat_challan_form_in_word_format.pdfIn PDF document text
    • https://duruzamuxe.weebly.com/uploads/1/3/2/3/132302842/aae021e2980fd94.pdfIn PDF document text
    • https://cdn.sqhk.co/tarekekog/bL1VicA/xunoxubogigepuwiv.pdfIn PDF document text
    • https://cdn.sqhk.co/ximepadogi/ihjjihh/no_crop_video.pdfIn PDF document text
    • http://wobepatonogez.iblogger.org/abilene_reporter_news_high_school_football_scores.pdfIn PDF document text
    • https://cdn.sqhk.co/mapetidul/cCgfijn/woderomezuteporar.pdfIn PDF document text
    • http://wtia.space/cosmopolitan_las_vegas_restaurantsbmf38.pdfIn PDF document text
    • http://de-bewertung-id-q2e5t23.top/acoustic_blues_guitar_tabs_for_beginnersrmd11.pdfIn PDF document text
    • http://fastcreditcheck.info/gowri_arumugam_songs2xgq3.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://xelilurezo.epizy.com/android_10_pixel_3_root.pdfIn PDF document text
    • http://furofazitogo.epizy.com/cg_video_2018_sabwap.pdfIn PDF document text
    • http://sarirepenibe.epizy.com/bihar_police_si_previous_paper.pdfIn PDF document text
    • http://xepododulujex.epizy.com/bosquejos_evangelisticos_cortos.pdfIn PDF document text
    • https://s3.amazonaws.com/waxegatulo/cepton_vista_manual.pdfIn PDF document text
    • http://runoxujozu.rf.gd/korojovamibejinunenatala.pdfIn PDF document text
    • http://jawikaginixuxuz.rf.gd/mayrhofen_ski_report.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_off0000d9e2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD9E2 5148 bytes
SHA-256: 0d8f38e007267fd8166a65179dc4c0c6848069441292a867b729a7dc9aaac3c5
font_01_sfnt_off0000eb89.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB89 10328 bytes
SHA-256: 4f74fa8d98e2a1336e7545c7e8f7c4ccae8f1bbe93c8d2122f90901763a9c176