Malicious PDF — malware analysis report

Static analysis result for SHA-256 fa800253bd72b67d…

MALICIOUS

PDF

68.6 KB Created: 2020-12-07 08:41:41 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-27
MD5: 40710e7d469f95143ff7310a5dbd7094 SHA-1: 19e24bff078588b75b04ae3df81e83841831e365 SHA-256: fa800253bd72b67d33a4309466f229f8ebb4f5353ac497441f98ea6d1878bc2b
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 funnel victims to a phishing page or download further malicious content. The ML classifier also strongly flagged this PDF as malicious. While no scripts were explicitly extracted, the nature of the redirector suggests an attempt to exploit the user via a malicious link, aligning with spearphishing tactics.

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
  • 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/123?utm_term=baidu+root+apk+english+version+download In PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/risalenefazozo/wedding_wishes_images_in_tamil.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6e0b1f34-3798-44d1-a99b-5d701a0a9a30/enseC3B1ame_a_hablar_gloria_lopez_garzon.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b80a9c9c-c008-4a91-a3fe-47ae72a44c89/shatta_wale_am_an_eagle_mp3_download.pdfIn PDF document text
    • https://s3.amazonaws.com/nokiva/purabuzodipikubu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0fc98383-a430-4696-8677-f915528947b8/28205783900.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8bdf77aa-361e-4fd0-9cc6-994a1f64c4fa/nomanatabelufupasojovavor.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbe0c00bc819f1cf49fdd82/1606290433709/24432352182.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/964da352-7052-49d7-a6cb-673d1d4c2459/24473912364.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc787120d716e027b048861/t/5fcb6d031415195da0853084/1607167235440/pixel_4a_band_71.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f9bc65b5-aa9c-49f0-a3e4-0fb5856ba7fa/jaxuvajefipawukiledor.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc29fd4c14dfd36fefc97f1/t/5fc6972c173fb5383b8adde1/1606850348828/49122143000.pdfIn PDF document text
    • https://s3.amazonaws.com/rekorewexidiwo/peramuramux.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_off0000c4dc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC4DC 5484 bytes
SHA-256: 07050dbedbec57d7957ed6a7d936994a1639f93aca310baa1cbb856da5677ae5
font_01_sfnt_off0000d78c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD78C 1796 bytes
SHA-256: dfab3945eace5ba27be1ad95d63d5142397767eab6bca27773794b33bda2302c
font_02_sfnt_off0000e016.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE016 10972 bytes
SHA-256: df68902bc98261ebe1d67a0b898136e4943a91a37357b45221053c07f7e045a8

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