Malicious PDF — malware analysis report

Static analysis result for SHA-256 e0b32ee20a54e4a4…

MALICIOUS

PDF

79.9 KB Created: 2021-03-03 07:44:27 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 4a0dd1609ab96d6dae254082497d17f9 SHA-1: a9ebb263ed47c18fc6917765566132430c987efd SHA-256: e0b32ee20a54e4a4438669541a11d40e3281e84c9884276f938b956961fcc8fa
126 Risk Score

Malware Insights

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

The PDF document contains numerous links to disposable domains, indicating a link farm or phishing lure. The ML classifier and ClamAV detection strongly suggest malicious intent, likely phishing or malware distribution. The embedded URL points to a domain that is likely used to host malicious content or redirect to a phishing page.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9990

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=la+crosse+atomic+clock+setting+instructions PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4377905/normal_6032ca572f68e.pdfIn PDF document text
    • http://baltika-trans.ru/champion_reverse_weave_hoodie_size_guide630gs.pdfIn PDF document text
    • http://insuranceautousa.com/63925647663x39z.pdfIn PDF document text
    • http://terakusinuw.mypressonline.com/78861347604.pdfIn PDF document text
    • http://bathforlegs.xyz/lg_direct_drive_dishwasher_error_codesjs45i.pdfIn PDF document text
    • http://macsk.space/itel_mobile_dialer_express_apptefym.pdfIn PDF document text
    • http://mpvideo.org/xebubovamuwad1i6r.pdfIn PDF document text
    • http://kusafomidufe.mywebcommunity.org/54440081904.pdfIn PDF document text
    • http://teenagetutor.net/lion_main_theme_piano_sheet_musicv884e.pdfIn PDF document text
    • http://italysummer.space/gaunts_ghosts_first_and_only_audiobookn2dua.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4424349/normal_5ff4c8451de8d.pdfIn PDF document text
    • http://keep-travel.com/25571435162v1bwd.pdfIn PDF document text
    • http://unonatur.space/benefits_of_fascial_stretch_therapyf7dl7.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4454558/normal_5fe2d8fed3de1.pdfIn PDF document text
    • http://daludaja.getenjoyment.net/cdma_workshop_2.7_full_download.pdfIn PDF document text
    • http://kerutugizuxig.mygamesonline.org/american_assassin_movie_age_rating.pdfIn PDF document text
    • http://avtoshkola-region26.ru/55580451763jy7q0.pdfIn PDF document text
    • http://aycotoro6.xyz/onkyo_tx-nr656_remote_reset4dpua.pdfIn PDF document text
    • http://fobativ.mywebcommunity.org/why_is_my_amana_washer_not_starting.pdfIn PDF document text
    • http://1cats.space/free_golf_event_flyer_template0979h.pdfIn PDF document text
    • http://zefujixa.mywebcommunity.org/34730278005.pdfIn PDF document text
    • http://fagumawegoleleb.mypressonline.com/journal_entries_questions_for_class_11_with_solutions_in_hindi.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • http://patudesaruvob.atwebpages.com/62170159452.pdfIn PDF document text
    • http://dezobod.onlinewebshop.net/hl-2270dw_driver_is_unavailable.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ef0a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEF0A 5004 bytes
SHA-256: 34d4239e47d579f6d716df741d9b9362679df8e1cccd247a2027b5f6301e8c97
font_01_sfnt_off0000fff6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFFF6 10236 bytes
SHA-256: 89551fe3d986de247ab1bfecba8fa0af22c522418c3b09b515d275de420cefc1
font_02_sfnt_off00012318.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12318 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176