Malicious PDF — malware analysis report

Static analysis result for SHA-256 45a3a1dfde3420f8…

MALICIOUS

PDF

171.4 KB Created: 2020-11-19 07:08:59 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-07
MD5: 42d3b0a573b1f2ddfac42eb3c4abf572 SHA-1: b56a3385a578daa1229f4258c0e8043967404137 SHA-256: 45a3a1dfde3420f8b0bebba2b19b8f7f83cf4d263ac8f43dbdbdabb782a00df9
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 'ggtraff.ru'. This URL is likely used to lure victims to a phishing site or download further malicious content. The ML classifier and ClamAV detection further support the malicious nature of this PDF, indicating it's a phishing or trojan distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

Heuristics 4

  • 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.
  • 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://ggtraff.ru/aws?utm_term=responsive+html+css+template+free In PDF document text
    • https://walutosewog.weebly.com/uploads/1/3/4/3/134312240/dubel.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408004/normal_5f973cad7e1b1.pdfIn PDF document text
    • https://dizakevusarebiz.weebly.com/uploads/1/3/4/5/134581037/jidolovi-lamanefurex.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4386620/normal_5f904615b81c4.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://uploads.strikinglycdn.com/files/d3610fef-6ba8-4305-b3cb-792530bebb00/bavap.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/26572113-1887-40dc-b751-574df5f88abd/zinokoreru.pdfIn PDF document text
    • https://s3.amazonaws.com/zupenafud/subway_surfers_online_free_poki.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f9e4fbe7-bdc0-416e-a303-18d62b4fcd95/bumakekebaw.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8da401bd-32b4-4384-9038-94ae723a71ce/rejepuxotubag.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bad4101e-3a20-4bb7-ba7b-cf412ec66ebf/89212573358.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c6d85f50-2f18-4849-ad5b-929c0446bcc6/69983244135.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b72d1a97-6c5f-4220-a68b-c99035a086da/corafya_soru_bankas_indir.pdfIn PDF document text
    • https://s3.amazonaws.com/kezemiradigu/95863513889.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_off00025c54.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x25C54 5112 bytes
SHA-256: 7761d325666fc71df0c2e0a026bd09d075252d31fa0b08990ab8e6e2e403cbb6
font_01_sfnt_off00026d85.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x26D85 10500 bytes
SHA-256: 35ad84d14bed765f98effb9692c1fe7c5513b0a2ca031e8be1d8cb624d100415
font_02_sfnt_off0002916b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2916B 4324 bytes
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c

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