Malicious PDF — malware analysis report

Static analysis result for SHA-256 ec990abaf0105197…

MALICIOUS

PDF

88.5 KB Created: 2021-03-24 04:01:43 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-02
MD5: d2f03e8d636978728265cc30fff1c7aa SHA-1: 2d38a604dfec0eec9c21ad12b147c4bef716150a SHA-256: ec990abaf01051973ba5f5ab4e759844a9f1f107f6bcfa5c984f9c54f2882e55
186 Risk Score

Malware Insights

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

This PDF file was flagged by multiple heuristics and an ML classifier as malicious, specifically identified as a phishing trojan by ClamAV. It contains a large number of external links, many pointing to disposable domains, suggesting a link farm or SEO spam operation. The primary malicious URL identified is https://xezojetit.ru/wix?keyword=shaista+wahidi+husband, which is likely used to redirect users to further malicious content or phishing pages.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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
  • 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.
  • 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://xezojetit.ru/wix?keyword=shaista+wahidi+husband PDF link annotation
    • https://cdn.sqhk.co/xegogeji/aUhfiev/monkey_flight_search.pdfIn PDF document text
    • http://gixipures.sportsontheweb.net/wedding_march_music_sheet.pdfIn PDF document text
    • https://sedanafijokam.weebly.com/uploads/1/3/4/8/134888359/6747783.pdfIn PDF document text
    • http://kugaraginoja.mypressonline.com/mutonidefonekojemivoro.pdfIn PDF document text
    • https://levukuwaxumofet.weebly.com/uploads/1/3/1/3/131383949/9622809.pdfIn PDF document text
    • http://pofuxubilet.sportsontheweb.net/budiji.pdfIn PDF document text
    • https://cdn.sqhk.co/zivunegas/L6kjdgf/35169895844.pdfIn PDF document text
    • http://nigoguno.scienceontheweb.net/6417771846.pdfIn PDF document text
    • http://rudovatimokasum.medianewsonline.com/ecografia_anatomica_fetal.pdfIn PDF document text
    • https://tigoxugijiwubaz.weebly.com/uploads/1/3/4/3/134315710/3437506.pdfIn PDF document text
    • http://piwulag.sportsontheweb.net/bopp_film_properties.pdfIn PDF document text
    • https://cdn.sqhk.co/kujexelorite/zQufheo/tamanadinudemejivazarez.pdfIn PDF document text
    • https://cdn.sqhk.co/sudizatase/jVggl1C/cataclysm_dark_days_ahead_launcher.pdfIn PDF document text
    • https://bixixadapi.weebly.com/uploads/1/3/5/3/135321875/bunokoliviwipup.pdfIn PDF document text
    • http://nigemutekilum.mypressonline.com/kelaxojasilix.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
    • https://uploads.strikinglycdn.com/files/290b9bfb-b021-4a66-8cb3-818e77d6d629/powerdirector_15_tutorial_francais.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/445083da-2221-4d54-b968-30be81105eb0/mtd_42_inch_mower_deck_parts.pdfIn PDF document text
    • http://nubibubimalepik.atwebpages.com/anisometropia_definicion.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8e41b0d3-8b9d-4af5-be61-9da13eb8e836/how_to_design_gear_tooth_profile.pdfIn PDF document text
    • http://sinusisokopex.atwebpages.com/experimental_quantitative_research_design_example.pdfIn PDF document text
    • http://moxapowi.myartsonline.com/coreano_de_corea_2020.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c0a88459-a913-4406-baa5-8ba3f02fd1cc/how_do_you_know_what_your_life_path_number_is.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/be6bfb1b-d023-462b-a932-020ebc08fef6/96707768340.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/91d37fc2-8ff1-498b-ae7c-b67da9825c64/mental_toughness_in_sport_the_goal-expectancy-self-control_ges_model.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/95897823-f3fb-4b4e-9e0d-8bd97f0fe34e/bivekawexi.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f5d8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF5D8 4772 bytes
SHA-256: 5c9b5de78a8a7085edafe130df4b479f3f72e94f65d905cf44d9d4a4c1d7c1df
font_01_sfnt_off000105f9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x105F9 11188 bytes
SHA-256: 01ba568e593afb9e048235b7db0b4922694f2152ccd92f701d9d6960b90664d7
font_02_sfnt_off00012c5a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12C5A 17352 bytes
SHA-256: 069a12372117c3a65ec10b16af420fa339d2c0c4e5f6fdd2802b27ad42857f08
font_03_sfnt_off00014590.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14590 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176

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