Malicious PDF — malware analysis report

Static analysis result for SHA-256 b90de880e68f8060…

MALICIOUS

PDF

36.7 KB Created: 2020-08-19 23:56:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5f4617fd4da4f409fd813f46c43aa27d SHA-1: 933388f4cc4cdff64ca1c63664272e59cc9c16a8 SHA-256: b90de880e68f8060225f8c6b66ee98019b3e2064df80f683f41f0b36f4970cae
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a link farm and a malicious redirector, indicating an attempt to lead the user to a harmful site. The primary malicious URL is https://ttraff.com/pify?keyword=weather+report+for+coatesville+pa, which is likely part of a phishing or malware distribution scheme. The document body, though heavily obfuscated, contains references to the redirector URL and other URLs hosted on Shopify, suggesting a broad distribution effort. No scripts were extracted from this sample.

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://ttraff.com/pify?keyword=weather+report+for+coatesville+pa
    • http://files.mschwindtphotography.com/uploads/1/3/1/4/131407734/da5aec.pdf
    • http://files.santinivideo.com/uploads/1/3/1/4/131406140/wagopis-pupuj-newuvega.pdf
    • http://mepur.thebackpew.com/uploads/1/3/1/1/131164243/9520ac6281.pdf
    • https://cdn.shopify.com/s/files/1/0440/7758/0453/files/dottys_weight_watchers.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/84113106953.pdf
    • https://cdn.shopify.com/s/files/1/0448/9333/9803/files/medullary_thyroid_cancer_guidelines.pdf
    • https://cdn.shopify.com/s/files/1/0435/5221/1099/files/rirafatukigab.pdf
    • https://cdn.shopify.com/s/files/1/0449/9701/7758/files/bank_management_and_financial_services_book.pdf
    • https://cdn.shopify.com/s/files/1/0432/9878/3382/files/60955894657.pdf
    • https://cdn.shopify.com/s/files/1/0439/1639/4648/files/3421233393.pdf
    • https://cdn.shopify.com/s/files/1/0440/1908/9566/files/bruchrechnen_aufgaben.pdf
    • https://cdn.shopify.com/s/files/1/0450/2241/2958/files/atomismo_filosofia.pdf
    • https://cdn.shopify.com/s/files/1/0437/5783/0293/files/lowololajesazug.pdf
    • https://cdn.shopify.com/s/files/1/0436/8472/4889/files/risosemejomi.pdf
    • https://cdn.shopify.com/s/files/1/0431/5460/4198/files/87741872405.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/

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000047da.bin
595f941347d702f8e5ab7e6e71e14c6d74b95819356e931baf051dd02bf29746
pdf-font-stream PDF embedded font (sfnt) at offset 0x47DA 4860 bytes
font_01_sfnt_off00005882.bin
bc737eb0b7af993fe831ea854763fc743099cbacea4a8b642df5e967358b2b0e
pdf-font-stream PDF embedded font (sfnt) at offset 0x5882 9240 bytes
font_02_sfnt_off0000780a.bin
7f6049e5011acf0e8581793f2bc2bb947aac2929fdb77abc318b2a6155c1ef71
pdf-font-stream PDF embedded font (sfnt) at offset 0x780A 4324 bytes