Malicious PDF — malware analysis report

Static analysis result for SHA-256 32963b3063a80fbf…

MALICIOUS

PDF

63.4 KB Created: 2020-11-21 20:00:50 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 878278b0fb06a0f74d60b40d92aa8280 SHA-1: ea0be295908d673d4f98b4d4547704cbaca3084f SHA-256: 32963b3063a80fbf04c8e008b2a74376c24e3a05b5d179c182cc82494e7865ed
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URI pointing to a suspicious domain, and ClamAV detection confirms it as a phishing trojan. The ML classifier also strongly indicated maliciousness. The document body, though heavily obfuscated, appears to be a lure related to generator specifications, likely intended to direct users to the malicious URL for further compromise.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://trafffi.ru/123?utm_term=coleman+powermate+6250+generator+specs PDF link annotation
    • https://gavawujag.weebly.com/uploads/1/3/4/3/134370084/mewesif.pdfIn PDF document text
    • https://gilolubirej.weebly.com/uploads/1/3/4/3/134309297/megiwoburodola_tolowowufeganal_sewugunokuwo.pdfIn PDF document text
    • https://jopulovi.weebly.com/uploads/1/3/4/2/134265775/zijavabuvojalaw-woxiwo.pdfIn PDF document text
    • https://megadezatesaram.weebly.com/uploads/1/3/0/7/130776649/04609804.pdfIn PDF document text
    • https://pasosawa.weebly.com/uploads/1/3/4/7/134737133/mabosub.pdfIn PDF document text
    • https://zoxuzuxebexot.weebly.com/uploads/1/3/0/9/130969059/3532345.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/dazifozixawus/cub_scout_tiger_handbook_free_download.pdfIn PDF document text
    • https://s3.amazonaws.com/penefelomiju/16646627467.pdfIn PDF document text
    • https://s3.amazonaws.com/dinisemowoge/vokijobowogirezibesisewu.pdfIn PDF document text
    • https://s3.amazonaws.com/baxunaf/fillable_rifts_rpg_character_sheet.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/986ce04c-cdda-49c0-83f2-33dee6425afd/pinehurst_lifestyle_crib_replacement_parts.pdfIn PDF document text
    • https://s3.amazonaws.com/tawosutosuxi/linear_regression_model_formula.pdfIn PDF document text
    • https://s3.amazonaws.com/jedaxopopuko/celebrity_cruises_classic_drinks_package.pdfIn PDF document text
    • https://s3.amazonaws.com/bovenotojitowe/87052560981.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_off0000b542.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB542 5804 bytes
SHA-256: fdadcf17bf4ffec85baa78073ccfcba8d857d8f6a0b4dd73fdbda00c7bd97175
font_01_sfnt_off0000c8fd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC8FD 11484 bytes
SHA-256: 5de83ab4bfdfa0ab4cfb860246e1d66ff54fc7caf62501a6f15fa9f354df53b2