Malicious PDF — malware analysis report

Static analysis result for SHA-256 6ee40a6941a7137b…

MALICIOUS

PDF

80.7 KB Created: 2021-03-25 01:18:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-02
MD5: 1fc8b4bf6497c18fb12f0e3261e793ac SHA-1: aee32432b69c09eb43a80beb76727fc1ef683835 SHA-256: 6ee40a6941a7137bbcbd0bef93f0e391136f5923fc25969510da453a2a7d669e
126 Risk Score

Malware Insights

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

The PDF contains numerous embedded URLs, with one specifically pointing to a site related to 'Summoners War newbie guide 2020'. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' indicates a high number of links on disposable hosting, suggesting a phishing or malicious redirection scheme. The ML classifier and ClamAV detection strongly indicate malicious intent, likely to redirect users to a phishing site or download further malware.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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 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://ponafet.ru/wix?keyword=summoners+war+newbie+guide+2020 PDF link annotation
    • http://golden-charm.ru/crazy_kind_of_love_movie_reviewoq7vx.pdfIn PDF document text
    • http://fapenas.22web.org/66657312440.pdfIn PDF document text
    • http://bikefevogob.iblogger.org/how_to_build_a_keto_diet_plan.pdfIn PDF document text
    • https://cdn.sqhk.co/vebiziwob/cqbjjhf/53195832108.pdfIn PDF document text
    • https://cdn.sqhk.co/bugolajoxodu/fjehbji/west_hill_dragon_gate_kunming.pdfIn PDF document text
    • https://cdn.sqhk.co/kerodamajop/N8hjji4/conjunctions_worksheets_with_answers_for_class_8.pdfIn PDF document text
    • http://ru-dev.xyz/teacher_appreciation_week_2019_chipotleoa5os.pdfIn PDF document text
    • http://mylic.ru/star_trek_movies_chris_pine_4xl710.pdfIn PDF document text
    • http://setomomenoku.22web.org/mogaxixifovusos.pdfIn PDF document text
    • https://cdn.sqhk.co/jobiwokojo/gejjxja/remote_link_pc_remote_ios.pdfIn PDF document text
    • https://cdn.sqhk.co/vuwipabobatu/gedUJQp/tobowunowo.pdfIn PDF document text
    • http://wubosilafusim.iblogger.org/cant_connect_to_asus_router.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://gedorigakijalag.epizy.com/attentional_control_scale_derryberry_reed_2020.pdfIn PDF document text
    • https://s3.amazonaws.com/fasudikek/centring_sheet_manufacturer_in_hyderabad.pdfIn PDF document text
    • https://s3.amazonaws.com/nafamaragisek/royal_canin_kitten_mousse_feeding_guide.pdfIn PDF document text
    • https://82a15d5c-09b3-4b2c-b6d5-cdf01964cb25.filesusr.com/ugd/5adcb9_d25c4d8178cc4077b48ae709fbcf6ada.pdf?index=trueIn PDF document text
    • http://volapubexu.epizy.com/zuvesepexoxamuwagugu.pdfIn PDF document text
    • http://sedegagagojuwej.epizy.com/2015_lexus_rx_350_f_sport_for_sale_in_toronto.pdfIn PDF document text
    • https://s3.amazonaws.com/mamibis/23700872132.pdfIn PDF document text
    • https://s3.amazonaws.com/rovikibixu/88489980905.pdfIn PDF document text
    • https://68420551-d949-41c4-975b-2ae86aa6d062.filesusr.com/ugd/09c3c7_8f37665227e24aa58f8eafccc245e7a7.pdf?index=trueIn 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_off0000fd0e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFD0E 5724 bytes
SHA-256: d8c316ab1e23565d0e1f9196f1e53e2d425646e7c5680abce985fa750249f1b0
font_01_sfnt_off00011079.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11079 10968 bytes
SHA-256: 6d3a10759a90ee5bade3105a3638f40eaf58809d06f1dd623e3c0363794c8704

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