Malicious PDF — malware analysis report

Static analysis result for SHA-256 924ee0d4dc2cb814…

MALICIOUS

PDF

78.2 KB Created: 2021-03-18 14:42:22 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-10
MD5: 22f3703d37c39382857eb6ac552c90c1 SHA-1: 9c9190e8d2bfccf56e0d093785fe44bee3838c3c SHA-256: 924ee0d4dc2cb81440999ab95a3a34683b66a9b9d09debd9203a4cc72e132955
184 Risk Score

Malware Insights

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

This PDF file was flagged as malicious by multiple heuristics and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous embedded links pointing to potentially malicious or disposable domains, suggesting a phishing or malware distribution campaign. The presence of a link to a known malicious redirector infrastructure further supports this assessment.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://dafemum.ru/wix?keyword=kitchen+cabinet+jacksonville+fl In PDF document text
    • http://alsamcctv.com/linear_equations_word_problems_workszo1sn.pdfIn PDF document text
    • http://menuralu.22web.org/43920244394.pdfIn PDF document text
    • http://niwizonoleror.mywebcommunity.org/alesis_dm10x_electronic_drum_kit.pdfIn PDF document text
    • http://useporte.xyz/318275579910ltsj.pdfIn PDF document text
    • https://wumetitazidizo.weebly.com/uploads/1/3/4/8/134885052/mosuwokuvigufu.pdfIn PDF document text
    • http://waliduv.mypressonline.com/suzanupafokafaligana.pdfIn PDF document text
    • https://cdn.sqhk.co/sawomunuj/iggikhg/92700706348.pdfIn PDF document text
    • http://gejesixave.scienceontheweb.net/the_7_laws_of_spiritual_success.pdfIn PDF document text
    • https://gutavavoz.weebly.com/uploads/1/3/4/0/134000423/dulotomejalesak_fesaduj.pdfIn PDF document text
    • http://kepajawidar.22web.org/28438607976.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4464707/normal_5fd129063f546.pdfIn PDF document text
    • http://bas-vorota.ru/alopecia_typesoub88.pdfIn PDF document text
    • http://distornyup.site/ragalusisuzowigatalelajaj3y26.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4405642/normal_60332eece0ee8.pdfIn PDF document text
    • https://kigazodiraju.weebly.com/uploads/1/3/4/6/134678535/298ac08.pdfIn PDF document text
    • https://suzoniku.weebly.com/uploads/1/3/4/4/134456843/tufegexutixet.pdfIn PDF document text
    • https://cdn.sqhk.co/woselukafo/ftje6TV/sms_ringtone_song_mp3.pdfIn PDF document text
    • https://cdn.sqhk.co/didatife/iNfhibZ/mod_pack_among_us_for_minecraft_java.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
    • http://wazuvolixevafo.rf.gd/tojidigixagipelin.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e608.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE608 4972 bytes
SHA-256: 5dbda66a15bf9976c9b7a2e361d5602fe380602431cee3077cc110b3fbc37b0c
font_01_sfnt_off0000f6e3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF6E3 11228 bytes
SHA-256: 61b6697004a144577928dedafc81338782b6348365fe6f6cf6c2e4c8d41b64c9
font_02_sfnt_off00011cf9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11CF9 4324 bytes
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e

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