Malicious PDF — malware analysis report

Static analysis result for SHA-256 7c6cd6137764ecad…

MALICIOUS

PDF

68.0 KB Created: 2020-11-25 22:43:27 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 0e6420afb9c4aca69e0855335e950cea SHA-1: 52cf86f7439ff21dd78dfee1b4a1a4d42e01f51d SHA-256: 7c6cd6137764ecadfb7d0408deef3b1323a1f8baff9a9f5efa7897f8bdcff51b
96 Risk Score

Malware Insights

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

The file was detected as malicious by ML classifiers and ClamAV, specifically identified as a phishing trojan. It contains an embedded URL pointing to 'traffking.ru', which is likely a phishing or malicious site. The PDF structure and embedded content suggest an attempt to exploit users through a deceptive link.

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
  • 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://traffking.ru/strik?utm_term=south+carlsbad+sb
    • https://cdn-cms.f-static.net/uploads/4412763/normal_5fa06b4f8fdfc.pdf
    • https://cdn-cms.f-static.net/uploads/4470830/normal_5fa994a4db9d2.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/defujo/flow_diagram_template_ppt.pdf
    • https://s3.amazonaws.com/xanebavifamopez/55842495565.pdf
    • https://s3.amazonaws.com/lijulijowivaze/big_blue_book_of_bicycle_repair_free.pdf
    • https://s3.amazonaws.com/jajoxulabojaso/kiziju.pdf
    • https://s3.amazonaws.com/fuwawibu/seven_continents_worksheets_printables.pdf
    • https://s3.amazonaws.com/gewisetug/everest_1996_anatoli_boukreev.pdf
    • https://s3.amazonaws.com/risisipajole/55319459886.pdf
    • https://uploads.strikinglycdn.com/files/5dc80806-8033-45e4-9e7e-80841e3ef961/53359875995.pdf
    • https://s3.amazonaws.com/purufiz/ggggx_fact_sheet.pdf
    • https://s3.amazonaws.com/wokesabisevo/hungry_shark_hack_version_mod_apk.pdf
    • https://uploads.strikinglycdn.com/files/4a8ae13c-b1e2-4fc5-ac8d-535f2293f296/tales_of_symphonia_2_trophy_guide.pdf
    • https://s3.amazonaws.com/belopudevuzuza/misabisejepori.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000cb7b.bin
e2d4fd968fd6e3516ea902c8638e4e792ddec53eaf086fe5df65b02d289dde7c		 pdf-font-stream PDF embedded font (sfnt) at offset 0xCB7B 5272 bytes
font_01_sfnt_off0000dd58.bin
59f1212e5d3da9bb33a688d8edef0cbfa3f02288a9575cea2343c543282ec65e		 pdf-font-stream PDF embedded font (sfnt) at offset 0xDD58 11496 bytes

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