Malicious PDF — malware analysis report

Static analysis result for SHA-256 7bdb99c877c98d7b…

MALICIOUS

PDF

71.7 KB Created: 2020-12-21 02:16:51 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-07
MD5: 96304c82a8ca9420a4e1ed5c4844b8a5 SHA-1: 4221281b8fdb35c7c2b053585a5ca7863d0264cf SHA-256: 7bdb99c877c98d7ba07ef8d5c12b3083c32033718b4dc0fa03c9445b7a4ad42e
96 Risk Score

Malware Insights

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

The PDF file was detected as malicious by a ML classifier and ClamAV, indicating a high likelihood of malicious intent. The embedded URL points to a suspicious domain, likely serving as a lure for phishing or malware distribution. The document body, though heavily obfuscated, contains text related to search queries, reinforcing the phishing pretext.

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://trafffe.ru/aws?utm_term=query+google+sheets+multiple+conditions PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4455185/normal_5fa201a76afb0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4445733/normal_5fb5727fc61b7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4499334/normal_5fc281f99b7c6.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4368770/normal_5fddd76f7acb9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384644/normal_5f8ca7fe25970.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4373797/normal_5fd840acb38de.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374686/normal_5fb4fb3529ac1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4462681/normal_5fa19b4e23c0e.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://static1.squarespace.com/static/5fc0e9eb3398ff75152e2002/t/5fc7197bad3e6411923e812b/1606883707472/tuzibaxaxalaza.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fdd539cc66bff209e8009b6/t/5fdde8b05809ae3434ee446f/1608378545525/73648727293.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/de414aee-52fd-48dd-84ae-4a7215adeb81/temake.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d387e845-7256-4bff-b64b-7425aed1341f/90187825764.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0169d5bb-5d50-42f5-949b-165417e930b5/south_florida_national_cemetery_memorial_day.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/22ec6508-051e-48bd-a07f-c57f777309b8/58463391327.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_off0000d792.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD792 5440 bytes
SHA-256: ac6c827cf09cc13857aa4dec5f44aa8d4bf9e89ab4f27a1fbf1458e2d69cac19
font_01_sfnt_off0000e9f4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE9F4 11792 bytes
SHA-256: a81379a3138c34171a069180a2adf35440a0da07f55c1ce008d5a0ec1a83bc23

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