Malicious PDF — malware analysis report

Static analysis result for SHA-256 1dc6295002e969ff…

MALICIOUS

PDF

82.6 KB Created: 2021-03-17 00:37:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9f230b95bd3f47c7e8bcfc8213473e35 SHA-1: 1a90d95932d561495e7b63db39edb0a0b4a80ab6 SHA-256: 1dc6295002e969ffded8e71c89c2ddeeffd192f68f8fe34add900757be309d3f
104 Risk Score

Malware Insights

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

The PDF contains embedded URLs and heuristic firings indicating malicious intent, including a ClamAV detection for Pdf.Phishing.Trojan. The document body, though heavily obfuscated, appears to be a lure related to a search query, suggesting a phishing or social engineering tactic. The presence of external URIs points towards the download of a secondary payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

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
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://resalured.ru/strik?utm_term=how+to+turn+off+vissani+beverage+cooler
    • https://cdn.sqhk.co/puburasar/oGgeamH/xupedupejabowowiju.pdf
    • http://kirakexig.mypressonline.com/dell_e6410_battery_driver.pdf
    • http://doxalasi.mywebcommunity.org/what_state_produces_the_most_dairy_farms.pdf
    • http://ginupedarokuxu.getenjoyment.net/how_to_tell_if_you_can_save_your_marriage.pdf
    • http://rosativiwam.mypressonline.com/char-broil_oil_less_fryer_recipes.pdf
    • https://cdn.sqhk.co/nupasoxure/2wggTgf/vigil_game_residence_of_evil.pdf
    • https://cdn.sqhk.co/kotolodegag/ibhbEja/bluestone_lane_menu_dc.pdf
    • http://ritixibetono.mygamesonline.org/aroma_4_cup_rice_cooker_directions.pdf
    • http://tulomodev.getenjoyment.net/70805791288.pdf
    • http://vibolofisef.mywebcommunity.org/gegafufuzapowenevefa.pdf
    • https://cdn.sqhk.co/mopijiluxu/ieRJOhc/beli_pulsa_xl_bayar_belakangan.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://s3.amazonaws.com/viboxikuz/3081633212.pdf
    • https://s3.amazonaws.com/jopomodilamego/best_planetarium_android_app.pdf
    • https://s3.amazonaws.com/wupuxus/jinelilufukatov.pdf
    • http://gubawakelu.onlinewebshop.net/why_is_my_cricut_not_cutting_through_glitter_iron_on.pdf
    • http://bekusisit.atwebpages.com/how_to_write_a_presentation_speech.pdf
    • http://bepolujogox.atwebpages.com/69290603743.pdf
    • https://s3.amazonaws.com/fomaralunex/74920926868.pdf
    • https://s3.amazonaws.com/futamo/91846489372.pdf
    • http://nopugorib.onlinewebshop.net/barejeluwovegojegudorefo.pdf
    • http://zonatitusajobo.onlinewebshop.net/56443408747.pdf
    • http://wetukanezin.atwebpages.com/tudelagibavosixikojito.pdf
    • https://s3.amazonaws.com/vufupu/dahao_emcad_embroidery_pattern-_design_system.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f49c.bin
c7f4692adc0021f3225316751f7a18cc5c11c7a3e94666202ff25040907c0fce		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF49C 5184 bytes
font_01_sfnt_off0001066a.bin
b02b2c2adf1464dc7f48fba7def4fef2e86ae1b0de375d97ba5f4497c18221a0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1066A 11396 bytes
font_02_sfnt_off00012d14.bin
0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12D14 4324 bytes

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