Malicious PDF — malware analysis report

Static analysis result for SHA-256 10dc09459c92060c…

MALICIOUS

PDF

82.8 KB Created: 2021-02-09 00:42:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-26
MD5: 90f426660ceaea1bca545ad9f1e31781 SHA-1: 1684bc6222400416c4d782de3f0fd9a0c85291e2 SHA-256: 10dc09459c92060ca2c51dd6d3e4d398401f70f5a2ec4b5ce78ac032d7987aba
214 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, with one identified as a known malicious redirector. The ML classifier and ClamAV detection strongly indicate malicious intent. The document body appears to be obfuscated or corrupted, but the presence of numerous external links suggests a phishing or SEO-based malicious campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • 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 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.
  • 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://crophysi.ru/wb?keyword=bhoot%20wala%20game%20%20ho%20jaye In PDF document text
    • https://static.s123-cdn-static.com/uploads/4488570/normal_5ffcd14bdd4f8.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4488332/normal_5fdeecf211cdb.pdfIn PDF document text
    • https://japatuxivavagax.weebly.com/uploads/1/3/0/7/130775167/gedajeje.pdfIn PDF document text
    • https://pituluwo.weebly.com/uploads/1/3/1/4/131437949/8e87f2ef1.pdfIn PDF document text
    • http://senteber.site/19284449174ex27r.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4380707/normal_5fd62518e5bcf.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4463034/normal_5fe38ee98bf83.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4416671/normal_5fcbe87a27106.pdfIn PDF document text
    • https://wexewuvaxodewo.weebly.com/uploads/1/3/1/4/131407465/fitizu.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4485821/normal_600168dba1beb.pdfIn PDF document text
    • http://mkr-olimp.info/microwave_coplanar_waveguide_simulationbm9hd.pdfIn PDF document text
    • https://putuxukive.weebly.com/uploads/1/3/1/3/131379249/079a0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4446761/normal_601dc3187bafd.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://s3.amazonaws.com/likerajatob/classification_of_matter_lab_report.pdfIn PDF document text
    • https://s3.amazonaws.com/vitelitubovuluj/learning_teaching_book.pdfIn PDF document text
    • https://s3.amazonaws.com/petikamov/81298116934.pdfIn PDF document text
    • https://s3.amazonaws.com/tiniruru/alone_in_the_universe_seussical_sheet_music.pdfIn PDF document text
    • https://s3.amazonaws.com/lomiwexuva/stalker_sport_2_radar_gun_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/tezude/google_spreadsheet_countif_multiple_criteria.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_off0000f940.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF940 4780 bytes
SHA-256: 6ff3d05d42f2ea68b4e7818286521e75451b7ae0827dc0344a3816be0e82ccd9
font_01_sfnt_off000109a8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x109A8 11600 bytes
SHA-256: 9b34dc4f10908eb36fd423a81121027dde249b77eb3707ec365f04504e2005bc
font_02_sfnt_off00012fc2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12FC2 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3

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