Malicious PDF — malware analysis report

Static analysis result for SHA-256 f7a18cf222986615…

MALICIOUS

PDF

120.7 KB Created: 2021-01-06 07:51:57 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-07
MD5: 00ff7f846b3563590a7dfb513b1782b1 SHA-1: debb9071457510c43b3f6a58ee6e2f03ccaa3db2 SHA-256: f7a18cf222986615e99b287567cf3f495fbc09230ed45033788a8395e2b879a2
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 'traffking.ru'. The ML classifier also strongly flagged this PDF as malicious. While no scripts were explicitly extracted, the presence of a malicious URL suggests an attempt to lure the user to a compromised site, likely for phishing or to download a secondary payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9985

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://traffking.ru/aws?utm_term=baal+veer+episode+1++3gp In PDF document text
    • https://static.s123-cdn-static.com/uploads/4424026/normal_5fde48f71c86b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368228/normal_5f87a7308bcc5.pdfIn PDF document text
    • https://cdn.sqhk.co/fedovusig/tthdibY/jolteon_plush_tomy.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
    • http://fedorahosted.org/lohitIn PDF document text
    • https://uploads.strikinglycdn.com/files/6add0cc2-28b3-4046-9820-20a14f457766/55770378905.pdfIn PDF document text
    • https://s3.amazonaws.com/vufupu/83408619446.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e040f933-57bf-40b7-9d36-02c732ad8b37/yahoo_chat_rooms.pdfIn PDF document text
    • https://s3.amazonaws.com/jiguwuzobozobaz/carl_jung_libro_rojo_gratis.pdfIn PDF document text
    • https://s3.amazonaws.com/xokebore/wokut.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4cf3ec87-ce50-4dbb-a9a8-d372531b162f/28393301814.pdfIn PDF document text
    • https://s3.amazonaws.com/jezekemunidup/favelelokivoluj.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d51e0635-e1e1-4e94-94c5-b4a83d387dc5/rosanabuwopunida.pdfIn PDF document text
    • https://s3.amazonaws.com/gowupuzokowuxes/74453381108.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 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00013ce0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13CE0 13028 bytes
SHA-256: bf4bbace54f1d8206704040951a8ae82957a202ff01e633e919d027c5970908c
font_01_sfnt_off00016799.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x16799 5056 bytes
SHA-256: 722774fd4c01ecf7fe5064d54ab4d4419fa49dd3eb1478e2b21811509309b748
font_02_sfnt_off000178d7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x178D7 2264 bytes
SHA-256: 83bfd6cc57ebde293ba8355a2aa1c4ee1d55b563df8278d0c452e2c34f8508ae
font_03_sfnt_off00018303.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x18303 17168 bytes
SHA-256: c427ea4e402c7aadb197b363c87855774e89eb2ad899d7b6cfc420da496a93d1
font_04_sfnt_off0001b2b8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1B2B8 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f
font_05_sfnt_off0001c0b9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1C0B9 5016 bytes
SHA-256: 54002ee888aca76dc8401085e8ea4ab772e51387789bd08950604366db65a06e

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