Malicious PDF — malware analysis report

Static analysis result for SHA-256 ded303d7035ea2c7…

MALICIOUS

PDF

78.7 KB Created: 2021-04-04 15:02:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-02
MD5: f3e5434ffd16d3834c7b1a827721b011 SHA-1: b8b1f5d8b2b9f3a0a22176627052550e12849790 SHA-256: ded303d7035ea2c758f8b06c16aa4c4769ec17e0427f7eca5c828b5e35c56a68
126 Risk Score

Malware Insights

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

The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous external URIs, with a primary suspicious URL being https://xezojetit.ru/award?keyword=news+report+template+pdf. The document body, though heavily obfuscated, suggests a lure related to 'news report template pdf'. The presence of many links on disposable hosting indicates a link farm designed to redirect users to malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://xezojetit.ru/award?keyword=news+report+template+pdf PDF link annotation
    • http://gebigulexejo.sportsontheweb.net/administrao_financeira_groppelli.pdfIn PDF document text
    • http://dobilarujokux.sportsontheweb.net/49848748403.pdfIn PDF document text
    • http://apsdd54gfv.xyz/lumion_6_pro_download0tne2.pdfIn PDF document text
    • http://everydays.space/ielts_band_9_writing_book9g8px.pdfIn PDF document text
    • http://pifowovumuwe.medianewsonline.com/fecha_de_caducidad_de_medicamentos.pdfIn PDF document text
    • http://zifufarox.getenjoyment.net/domopuxizobofusefewizeru.pdfIn PDF document text
    • http://radogomi.mygamesonline.org/best_call_of_cthulhu_rpg_books.pdfIn PDF document text
    • http://pixizosusonaxij.sportsontheweb.net/79382757608.pdfIn PDF document text
    • http://begdas.fun/adventure_capitalist_hacked_apkv32sa.pdfIn PDF document text
    • http://jonotijero.medianewsonline.com/dulodukegunozotasekatuvem.pdfIn PDF document text
    • http://voiprormul.xyz/756177708733sutn.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/629f1b25-542e-42dd-95ca-add3bdd86b93/1727471699.pdfIn PDF document text
    • http://kugukokoner.myartsonline.com/61396744723.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/20362ac1-3adc-40dc-9a1e-75840a8152e2/blender_2.8_modeling_tutorial.pdfIn PDF document text
    • http://donufuruwitij.atwebpages.com/98596769761.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c67eee9a-658a-4637-82d7-08dff60fabae/74669262598.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c73a8658-9316-4477-92c4-bc72095409f4/43721677478.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/98a8b08c-b72e-4f1c-82fd-da573d6755b2/my_whirlpool_side_by_side_refrigerator_is_not_making_ice.pdfIn PDF document text
    • http://benamow.myartsonline.com/calendario_laboral_2020.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7557d51e-edf0-4d67-a673-b9baa990d14d/81570367255.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b7303806-d2b4-460f-95b1-436004dc8873/how_do_i_set_the_time_on_my_g_shock_5081.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/67768f12-a0e2-4f2d-b0f0-903f16ddda9d/munapaduduwana.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_off0000f715.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF715 5248 bytes
SHA-256: 621e4887dae2e620c0490fe7916b1fac11de0aa117e923cfc6910fa9c9640164
font_01_sfnt_off000108ee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x108EE 10860 bytes
SHA-256: 4fc425c97df9970f50a6167d420da56d26c6066c1a875d0461a9a49e92594375

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