Malicious PDF — malware analysis report

Static analysis result for SHA-256 d8417c5ca1b0791a…

MALICIOUS

PDF

69.1 KB Created: 2021-01-02 08:19:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-27
MD5: 5bed158acaa569da8290791ee93faccf SHA-1: e96b4455a2bb414aa8358f9f2a72608996d12e27 SHA-256: d8417c5ca1b0791a27dba0bb628abc4c7680fce3b7a36e1a9f3332f1ed3edec4
154 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'https://gettraff.ru/123?utm_term=tvb+anywhere+apk+cracked'. The document body, though heavily obfuscated, contains references to 'Tvb anywhere apk cracked', suggesting a lure for malicious software. The ML classifier and ClamAV detection further support the malicious nature of this PDF.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • 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.
  • 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://gettraff.ru/123?utm_term=tvb+anywhere+apk+cracked In PDF document text
    • https://cdn.sqhk.co/netimawifes/Ahcgihf/wiraxi.pdfIn PDF document text
    • https://welomutulek.weebly.com/uploads/1/3/4/8/134873792/8381104.pdfIn PDF document text
    • https://cdn.sqhk.co/wuvupalib/U42rDvV/football_cup_superstars_apk.pdfIn PDF document text
    • https://gokopawe.weebly.com/uploads/1/3/4/4/134493337/lanaxutodi.pdfIn PDF document text
    • https://zadumeredevasax.weebly.com/uploads/1/3/1/4/131453870/pilenapidokabi_mazosod_ferixejimada.pdfIn PDF document text
    • https://bodupakodekafas.weebly.com/uploads/1/3/2/6/132680796/rewikupuwugod.pdfIn PDF document text
    • https://cdn.sqhk.co/bibunifez/PAjigfc/41579583224.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/a0e72b3a-c39f-435a-a695-1595f55cb9d4/28374767909.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/861a6a40-e6d0-4e07-968c-ac9a10085445/bujivitamekiradewos.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0e867492-f6fe-4487-b37e-66dfabdd9012/50928406646.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5ee19969-a976-49a2-a9a1-077aa15a3ed9/film_amazon_prime_best.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/87a218c5-a9c0-4237-81be-12f4cdc6c03a/louisiana_search_warrant_laws.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_off0000cde9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCDE9 5356 bytes
SHA-256: 420393834b2e41b640ba6dde502f92dc0d0332f5d5899de1b9c129ad3f1b1be9
font_01_sfnt_off0000e033.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE033 11932 bytes
SHA-256: 7fe801c1af41cf7ed5e94d69f77e4e4767e17349e5515ab0d2b2941f7bc4138a

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