Malicious PDF — malware analysis report

Static analysis result for SHA-256 034ed8ff2ea23bd3…

MALICIOUS

PDF

25.9 KB Created: 2020-11-02 21:42:33 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ced9bba899efdfa8073c3acda38d8b2e SHA-1: 1d0a6b9c5ae0596e9fc1e78120d30e380ba41e8d SHA-256: 034ed8ff2ea23bd30cbff7f8c5b77c50ed04d2a8874f8c939ffa6ef2e1d3eb6e
152 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, including one pointing to a known malicious redirector. The document body, though heavily obfuscated, contains a URL that appears to be part of a lure. The presence of a link farm and a malicious redirector strongly suggests an attempt to drive traffic to malicious sites, likely for further exploitation or phishing. No scripts were extracted, but the PDF structure itself facilitates the malicious redirection.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9986

Heuristics 3

  • 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.
  • 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.
  • 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://gettraff.ru/strik?keyword=deedan+10+episodes
    • https://jemiwuwavaza.weebly.com/uploads/1/3/0/8/130814288/wizaxobiwo.pdf
    • https://rizulibix.weebly.com/uploads/1/3/4/3/134358491/d8a3fdb235a.pdf
    • https://vuzejugusu.weebly.com/uploads/1/3/4/4/134486163/lifekurapebusigaz.pdf
    • https://wibanakipose.weebly.com/uploads/1/3/4/3/134361509/damiwokekitube.pdf
    • https://babikovinemixe.weebly.com/uploads/1/3/1/8/131856339/04adfba56.pdf
    • https://wekubuzebebam.weebly.com/uploads/1/3/0/7/130739705/d0980da5.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0504/2461/0990/files/zaniwanul.pdf
    • https://cdn.shopify.com/s/files/1/0438/7943/2347/files/manil.pdf
    • https://s3.amazonaws.com/jefazaxal/yes_yours_is_no_disgrace_studio_version.pdf
    • https://cdn.shopify.com/s/files/1/0499/5468/5077/files/5861635773.pdf
    • https://cdn.shopify.com/s/files/1/0433/7182/3262/files/99448611327.pdf
    • https://cdn.shopify.com/s/files/1/0268/7614/9947/files/armored_core_for_answer_noblesse_oblige.pdf
    • https://cdn.shopify.com/s/files/1/0504/8958/9930/files/bio_rad_cfx96_c1000_manual.pdf
    • http://scripts.sil.org/OFL

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000045b5.bin
7ff4186099e742d90eb26f281d7b9ef365c49f1c1651c7770909a44d3db2208d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x45B5 5020 bytes

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