Malicious PDF — malware analysis report

Static analysis result for SHA-256 cc3062d3f7b32f73…

MALICIOUS

PDF

72.2 KB Created: 2021-02-18 00:59:17 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-17
MD5: 134c801c83cc2ce9c9b7224fc6709140 SHA-1: 6a419dcee02ec07d3dea5688c5ff35083cdc7d15 SHA-256: cc3062d3f7b32f73dbe06997c196627ec9cff916db5e6bb1231940e31b3c6b14
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 6

  • 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.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://druttle.ru/123?utm_term=alaska+driving+license+practice+test PDF link annotation
    • https://cdn.sqhk.co/korulifesewa/hidhhhi/hide._io_play_now.pdfIn PDF document text
    • https://cdn.sqhk.co/nomitusibop/gjaiigd/79746251669.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4475999/normal_5fcdbc231160f.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4457561/normal_6005ca4106d0a.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4410013/normal_5fcd273d32553.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4526930/normal_5ff780c0608d1.pdfIn PDF document text
    • https://sezebotari.weebly.com/uploads/1/3/1/6/131636698/batevitix_dujob_xesepesaxi.pdfIn PDF document text
    • https://loguxofe.weebly.com/uploads/1/3/0/7/130775118/bc1b6ff.pdfIn PDF document text
    • https://wajuzetixageg.weebly.com/uploads/1/3/0/9/130969085/2618881.pdfIn PDF document text
    • https://natatujefeni.weebly.com/uploads/1/3/1/6/131607075/dinikabofavib.pdfIn PDF document text
    • https://cdn.sqhk.co/buzulexoxuve/eogckyN/mini_world_block_art_apk_download_free.pdfIn PDF document text
    • https://cdn.sqhk.co/gajerivab/iYifaTV/musynx_ps4_update.pdfIn PDF document text
    • https://jivexine.weebly.com/uploads/1/3/1/3/131380908/milekezewoxubini.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://xuwugufufokiti.epizy.com/java_for_win_10.pdfIn PDF document text
    • http://jofesosozofoso.epizy.com/aaru_movie_songs_now.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000dd95.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD95 5356 bytes
SHA-256: dc2c5f8904b2fc4510a41bded2acb67f83cee5706de6b279dd9fd449b2b0d654
font_01_sfnt_off0000efe4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEFE4 10776 bytes
SHA-256: 0697eaf35ee36bbdf81537115410092547892216c61fd1baa3971a004e2af418