Malicious PDF — malware analysis report

Static analysis result for SHA-256 7e03680699cac086…

MALICIOUS

PDF

87.7 KB Created: 2021-05-19 00:23:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-23
MD5: 8c568bb962cbb9de7471e576d5501a6e SHA-1: 2c0b8e821963119a0d2bae27ce27902fc629ed4f SHA-256: 7e03680699cac086c86ab1d06ba15fdde4c9ef6f995ac649049b5d1a9b0b19b8
244 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file contains a large number of embedded links, many of which point to disposable hosting services or known malicious redirectors. The document body, though heavily obfuscated, suggests a lure related to 'saving a project in Google Earth'. The primary function appears to be directing users to potentially malicious websites, likely for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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
  • 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 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.
  • 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://yafferge.ru/strik?utm_term=how+to+save+a+project+in+google+earth In PDF document text
    • http://xobuxok.22web.org/ripat.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4372737/normal_606c6f15757c6.pdfIn PDF document text
    • https://gikesusemu.weebly.com/uploads/1/3/4/7/134775173/laduxu.pdfIn PDF document text
    • https://mutikotamibe.weebly.com/uploads/1/3/0/8/130874320/1802156.pdfIn PDF document text
    • https://jozevupipe.weebly.com/uploads/1/3/5/3/135346753/rimewutajugawos.pdfIn PDF document text
    • https://wujipiledulom.weebly.com/uploads/1/3/4/6/134695719/865828.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4477400/normal_604871b30317f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4385424/normal_6017a6f03788b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4451752/normal_602798d19c115.pdfIn PDF document text
    • https://xasukibumit.weebly.com/uploads/1/3/4/7/134749231/3fc3751121.pdfIn PDF document text
    • http://sipoxamux.22web.org/bedanovo.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/26969d6e-e9a5-4172-80f9-d1538d655949/rikam.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3ef63f2c-662f-41f0-8809-8e4c2bb080ef/nespresso_vertuoline_maintenance.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c9e7436a-e937-4cb8-a507-2d430c9e2987/99536034542.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f6536b43-f537-4825-ac9e-cde9cff5f63f/wuxelutedepisudel.pdfIn PDF document text
    • http://kadapefiwemol.epizy.com/juboduziwamufo.pdfIn PDF document text
    • https://s3.amazonaws.com/topipovikapari/where_can_i_download_big_fish_games_full_version_for_free.pdfIn PDF document text
    • https://s3.amazonaws.com/fomudebipefasu/monthly_planner_template_october_2019.pdfIn PDF document text
    • http://gifesikubelazu.epizy.com/google_assistant_go_apk_latest.pdfIn PDF document text
    • https://s3.amazonaws.com/xupimaral/spacemacs_vim_mode_cheat_sheet.pdfIn PDF document text
    • http://pozogomeguko.epizy.com/numeric_and_geometric_patterns_grade_7.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1bfdb7fc-e4a7-4117-8ea8-07c4e8442959/let_the_right_one_in_trailer_american.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_off00011a60.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11A60 5384 bytes
SHA-256: 54c2370dddfd33933a2650c951dcee894f64bd7dbd104adfd9b59d431e58154b
font_01_sfnt_off00012cc5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12CC5 10648 bytes
SHA-256: 3f954d251cfd5c508d953c6be3d433303a407cb3e0212cc58f2de94ddfe09b5a