Malicious PDF — malware analysis report

Static analysis result for SHA-256 0930deb63d8ddc42…

MALICIOUS

PDF

83.6 KB Created: 2021-03-15 15:47:38 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-02
MD5: d6d62c5d64ac6b7e9fa6719137187eb6 SHA-1: 44b19e77075417661b9192be59aa980be3873ee2 SHA-256: 0930deb63d8ddc427fd150241bbc0be5b57d5d900c07512df5f9a349f07825fe
126 Risk Score

Malware Insights

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

The PDF contains embedded URLs that point to domains associated with link farms and potentially malicious content. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or malware distribution. The document body, though partially garbled, suggests a lure related to a 'flat belly overnight trick', a common theme in scams.

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://gimoguvi.ru/wix?keyword=what+is+the+flat+belly+overnight+trick PDF link annotation
    • http://suxoxaxowigab.scienceontheweb.net/microsoft_access_2020_database_tutorial.pdfIn PDF document text
    • http://kurs1.xyz/dixisalopibevexazijornzsj4.pdfIn PDF document text
    • http://lozejebivo.scienceontheweb.net/construct_2d_array_python.pdfIn PDF document text
    • http://devgm.design/usps_annual_report_20166o0vf.pdfIn PDF document text
    • http://losinglotterynumbers.com/understanding_viruses_3rd1lry2.pdfIn PDF document text
    • http://tijijosopake.22web.org/analysis_financial_report_sample.pdfIn PDF document text
    • http://zisuroto.mygamesonline.org/free_download_driver_printer_hp_laserjet_p1006_for_windows_10.pdfIn PDF document text
    • http://wivaserana.mywebcommunity.org/types_of_cabinet_hinges.pdfIn PDF document text
    • http://watertea.space/vokuvejaranuxafudewekkejm6.pdfIn PDF document text
    • http://paktum.pro/what_did_darwin_discover_in_south_americakffan.pdfIn PDF document text
    • http://suxusojifuf.iblogger.org/zivevekolezizujosu.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://fuxufotab.epizy.com/tosinisozoxeboxusu.pdfIn PDF document text
    • https://0bdb67af-4c57-4a6e-9706-714cc80719f5.filesusr.com/ugd/fc840b_360d7be5fd454f669a3d53e118d8eed7.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/f85de5d1-4631-4c67-b533-d39ea4063ad6/jabawujexumekakawaku.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/89235461-e843-4c18-93be-6f6eb0d8d900/64058417853.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b70819e3-688e-42d8-92a4-51e6a75215c8/does_stephen_king_appear_in_pet_sematary_2019.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7e158478-31d8-4a9b-a216-26173ec2bbaf/to_all_the_boys_i_loved_before_2_book.pdfIn PDF document text
    • http://sabiwilurase.atwebpages.com/unilag_admission_list_2020.pdfIn PDF document text
    • https://af0fe010-594a-4ec7-a26b-e2d78e33490d.filesusr.com/ugd/7d2910_c75b40396c1f40d5a5d7f6ac9dd6db91.pdf?index=trueIn PDF document text
    • https://38aad9b5-7a72-45b8-ac81-9fe73ce82000.filesusr.com/ugd/08338c_716f1bb272ea4a93aec56acb4f3c5271.pdf?index=trueIn PDF document text
    • http://fugovolit.rf.gd/55300630755.pdfIn PDF document text
    • http://zazaluvuzusu.rf.gd/sofebozujowawaz.pdfIn PDF document text
    • http://sasebuza.epizy.com/how_to_set_delay_on_mr_coffee_12_cup.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_off0000fbe2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFBE2 5312 bytes
SHA-256: d08c864228d14e1951d7d9a2a1f163ca7868858de49e2e9ff7eb959d445a61a4
font_01_sfnt_off00010dfb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10DFB 10724 bytes
SHA-256: 1c2437f59992cc3d6d650a18588ab05f410fbbbf48b11492b0a224e4505ad380
font_02_sfnt_off000132a4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x132A4 4324 bytes
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333