Malicious PDF — malware analysis report

Static analysis result for SHA-256 2ca5ecf4d3e65886…

MALICIOUS

PDF

78.1 KB Created: 2021-03-04 19:17:43 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-20
MD5: 000f584ea91308af977b8759f3d2ece6 SHA-1: 7bb62b388d18d6dff6185cc728f5a461c3dfa169 SHA-256: 2ca5ecf4d3e65886e55cdce6ca6566527e7f3bcf8babfb1197a18540557b532f
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a mass external link farm, with one prominent URL disguised as a printer setup query. ClamAV and ML classifiers identified this PDF as malicious, specifically a phishing trojan. The presence of numerous external links suggests an attempt to redirect users to potentially malicious websites for further exploitation or credential harvesting.

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
  • 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.
  • 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://soxebez.ru/123?utm_term=how+do+i+connect+my+brother+hl+l2350dw+printer+to+wifi PDF link annotation
    • http://tibagisuminove.sportsontheweb.net/36250701341.pdfIn PDF document text
    • https://zapojejomelaxi.weebly.com/uploads/1/3/0/7/130775516/gozase.pdfIn PDF document text
    • https://vorogudomuva.weebly.com/uploads/1/3/1/3/131398182/a74ba29ee79e.pdfIn PDF document text
    • https://cdn.sqhk.co/bepemuno/fWHhaQz/62520944478.pdfIn PDF document text
    • https://cdn.sqhk.co/mebosuxular/idIyigL/truck_driving_games_free_download_for_windows_10.pdfIn PDF document text
    • https://cdn.sqhk.co/judawube/h06hhhf/tik_tok_video_fleetwood_mac_ocean_spray.pdfIn PDF document text
    • https://cdn.sqhk.co/losomilodip/Kw4JSjc/20139158014.pdfIn PDF document text
    • https://cdn.sqhk.co/zofizitene/ricjdtv/70818596729.pdfIn PDF document text
    • http://zizodoroluxonaf.sportsontheweb.net/42293464429.pdfIn PDF document text
    • https://soxuwewoduxewu.weebly.com/uploads/1/3/4/0/134042667/zaserojuwa_mowekora_gonibodumoseg_nosoxirek.pdfIn PDF document text
    • http://kanaxade.mygamesonline.org/42681165130.pdfIn PDF document text
    • https://zikixitifo.weebly.com/uploads/1/3/4/8/134897390/mezevev-vilizazewi-jogejef-pejofalu.pdfIn PDF document text
    • https://cdn.sqhk.co/xuwadezab/jceBDjh/marketing_strategic_planner_job_description.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/jodabiladezot/samsung_scx-3405w_factory_reset.pdfIn PDF document text
    • https://s3.amazonaws.com/levovod/falling_slowly_sheet_music_piano_free.pdfIn PDF document text
    • https://s3.amazonaws.com/xujitezu/cdate_format_vbscript.pdfIn PDF document text
    • http://rogofideb.onlinewebshop.net/nada_carmen_laforet_resumen_y_analisis.pdfIn PDF document text
    • https://s3.amazonaws.com/bejeseja/koxusopupem.pdfIn PDF document text
    • https://s3.amazonaws.com/rotowan/hanuman_vs_mahiravana_movie_hd.pdfIn PDF document text
    • https://s3.amazonaws.com/babetafaperaxov/nimafolubenape.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_off0000f28d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF28D 5864 bytes
SHA-256: 6a4cd3f8292460457062830fe9d0a6bdd57b94ba86d9211e12028388dfe84318
font_01_sfnt_off00010678.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10678 10676 bytes
SHA-256: 08206f4cda8d43af118085a192ccf504be173f192e7bb8e8b737d45dde80e09d

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