Malicious PDF — malware analysis report

Static analysis result for SHA-256 2112cd268436d9be…

MALICIOUS

PDF

83.7 KB Created: 2021-01-09 02:14:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-23
MD5: b649b2ce59f36eddcf7b7394aa1461cf SHA-1: 43d91d98f0cf60482d9170061cb6e045f894977b SHA-256: 2112cd268436d9be260cec2acad5f0ebb09e590d70988e0895b442a16e7417ef
156 Risk Score

Malware Insights

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

The PDF contains a large number of external links, many pointing to other PDFs, suggesting a link farm or SEO manipulation tactic. The primary external URI points to a URL that includes a search query, indicating a potential phishing or scam lure. ClamAV and ML classifiers also flagged this PDF as malicious, specifically as a phishing trojan.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://traffnew.ru/wb?keyword=nikah%20halala%20meaning%20in%20tamil PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4407571/normal_5f987a99829bb.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4459623/normal_5fa92b1cd488e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4388065/normal_5fa95d7aaf8a9.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4484632/normal_5ff2c2f213157.pdfIn PDF document text
    • https://mopuvavipobum.weebly.com/uploads/1/3/1/0/131070525/xisorasokowasom.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393626/normal_5fc029000c8db.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4408330/normal_5ff61ca924a0d.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4369786/normal_5fc593e00f3fa.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4421629/normal_5fa187a43e1e7.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/3a20d850-2793-4a4e-8fde-046c32ec7b3b/above_and_below_worksheets_for_grade_1.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/49ffd92d-2f0b-43f6-82d8-0bf982e20dfd/tarisepeno.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2fe3b380-f2fd-4458-ac70-bd71921f900f/11912672521.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e37e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE37E 4536 bytes
SHA-256: 443cffa55f7b66cfde1cf50e639c41d80318c264f7cf3dbc2b247bdef4a08f48
font_01_sfnt_off0000f2b7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF2B7 13368 bytes
SHA-256: ca78f012fc61b83d3040719fdf3c0f03bcdcaea440e5642f70bba0c534735d30
font_02_sfnt_off00011d71.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11D71 16428 bytes
SHA-256: 0ebb9e5115c2768223cd9ba763774ff46fc578165764e39dd54446014717587e
font_03_sfnt_off000133a3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x133A3 4324 bytes
SHA-256: 781b9fae2fb9201b4a05d2041fea553bb2973f1d011ab9c51e3326c72e342c60

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