Malicious PDF — malware analysis report

Static analysis result for SHA-256 32ecff4ada22c779…

MALICIOUS

PDF

123.7 KB Created: 2021-03-14 07:10:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-02
MD5: 1063dbc45d762dff27d8218139619d9b SHA-1: 87c099d8e90700469a4e861a6bf74568d7a26e8a SHA-256: 32ecff4ada22c779e3a4b2b76fa3cce4524572a8ac074e474552c356be07d8d1
134 Risk Score

Malware Insights

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

The PDF contains multiple external links, including one to 'seumenha.ru', which is flagged as a link farm on disposable hosting. The ML classifier and ClamAV detection strongly indicate malicious intent, likely phishing or malware distribution. Although no scripts were explicitly extracted, the PDF structure and heuristic firings suggest it's designed to redirect users to malicious sites for further compromise.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9966

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 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.
  • 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://seumenha.ru/award?keyword=arcgis+10+tutorial+for+beginners+pdf PDF link annotation
    • https://muzikalojex.weebly.com/uploads/1/3/4/0/134012647/xeboxufojariramagek.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4413585/normal_5feeaad732f40.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4530578/normal_602aa0ad83505.pdfIn PDF document text
    • https://vilinumatilaji.weebly.com/uploads/1/3/2/7/132740241/dadipiz.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4426409/normal_6042f56525494.pdfIn PDF document text
    • https://miluxeto.weebly.com/uploads/1/3/5/3/135326788/nexesepin.pdfIn PDF document text
    • https://fitokuzigijot.weebly.com/uploads/1/3/4/6/134681543/fudis_kolilagev_gutolabesuxijif.pdfIn PDF document text
    • https://vesekukoluvili.weebly.com/uploads/1/3/4/7/134759730/taxawoxatefotaz_lupuketapili_fatas_kigef.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/vajefam/56184020072.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/159132ad-007a-412d-9554-0c10bdaaed74/19057631102.pdfIn PDF document text
    • https://s3.amazonaws.com/xeruxaxer/85276919720.pdfIn PDF document text
    • https://s3.amazonaws.com/didowugorokirug/adobe_reader_11_offline_setup_free.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4e0ef2fd-c2d4-4098-9a57-892ae361cfc5/how_to_use_viper_car_starter.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1e93a385-c031-4d1b-ba03-021573eb3655/kudasewexinomalafunu.pdfIn PDF document text
    • https://s3.amazonaws.com/fuvidokibet/purposes_of_writing_include.pdfIn PDF document text
    • https://s3.amazonaws.com/rutufokedizon/bimanual_meaning_in_gujarati.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2eee6a6e-bf5a-4c1f-9221-752f45024cda/17685058938.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/80d3d09a-e86e-40d5-81d1-cc4f69780067/tudusin.pdfIn PDF document text
    • https://s3.amazonaws.com/piradi/disolventes_proticos_y_aproticos.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2d6a9b37-93cd-4875-88f6-f080da94f787/dazuvu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/025cddc9-fc1a-49a9-b823-eae1251c603f/best_book_for_introduction_to_accounting.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
    • https://savannah.gnu.org/projects/freefont/In PDF document text
    • http://www.gnu.org/licenses/In PDF document text
    • http://www.gnu.org/copyleft/gpl.htmlIn 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 7

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000137e6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x137E6 6656 bytes
SHA-256: 743029c2f5d25025814fccc44b5330a379f8908032d13be40e7c72741a171b92
font_01_sfnt_off0001484f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1484F 4548 bytes
SHA-256: 7352ae21097dd1059174dee41f565b1d0e0514fc5dc25aaaf77906c0ba1a5e7a
font_02_sfnt_off0001586d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1586D 5648 bytes
SHA-256: 1931bbecf9a1e014dfd0cc7d3eb7b153818efa967a7f2edc825580a2149d1cab
font_03_sfnt_off00016baf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x16BAF 9084 bytes
SHA-256: a0f98d3a49a80cfb6778ecae7663523277410c40006611e90c268b28ce26b86c
font_04_sfnt_off00017e26.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x17E26 17948 bytes
SHA-256: 0eb7b42859dd01ca8459bea7804bd2025ef5b592507e7a06e2c6100b3e18b08a
font_05_sfnt_off0001b761.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1B761 17100 bytes
SHA-256: a6755aa4c635f7fba422e2ead6af0b1e5c6f461eabc189690196ff931c17f4ce
font_06_sfnt_off0001d02f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1D02F 6128 bytes
SHA-256: 0ab72a8725c55fb9cdd40aad158343290c609a7c18ab690e6c357959d54ccea5

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