Malicious PDF — malware analysis report

Static analysis result for SHA-256 cd0cb889c4cf1445…

MALICIOUS

PDF

57.3 KB Created: 2020-08-19 07:21:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 585044ef0c55da05f3ca1b028358df32 SHA-1: 5bdae5c3f3c140e035bedcbcbd5645c7f9cc0234 SHA-256: cd0cb889c4cf14456446ecfa86eb8dbce492e194ddd97a6ab698f0c764b3db91
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, with the primary link pointing to a redirector service (ttraff.cc). This suggests an attempt to obscure the final malicious destination, likely a phishing page or malware download. The presence of numerous other links, even if some are benign, contributes to a link farm strategy to improve search engine visibility for malicious content. No scripts were extracted, and the document body is heavily obfuscated.

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.cc/pify?keyword=exemplo+de+um+texto+expositivo+argumentativo+pdf
    • http://files.thesillysmock.com/uploads/1/3/0/7/130739288/4639067.pdf
    • http://files.bookcellarlwonline.com/uploads/1/3/1/8/131860787/xejapami.pdf
    • http://files.ozunamarketing.com/uploads/1/3/1/3/131380438/zelimetik-lilibawezibe-gejeni.pdf
    • https://cdn.shopify.com/s/files/1/0432/4923/8179/files/52182911184.pdf
    • https://cdn.shopify.com/s/files/1/0433/5170/3706/files/mutojowupofogotika.pdf
    • https://cdn.shopify.com/s/files/1/0461/6129/7560/files/32142379623.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/4155504299.pdf
    • https://cdn.shopify.com/s/files/1/0438/0993/1426/files/20179181553.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/51025654711.pdf
    • https://cdn.shopify.com/s/files/1/0430/8657/7828/files/jifajami.pdf
    • https://cdn.shopify.com/s/files/1/0434/0344/4380/files/rugeporenumusedigerak.pdf
    • https://cdn.shopify.com/s/files/1/0431/5942/1092/files/chromedriver_directory_python.pdf
    • https://cdn.shopify.com/s/files/1/0440/6712/7446/files/dexezuxotufubafonafape.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_off0000849d.bin
27e17a40e37f76fa790ca5c2dd2057871c537e0b57d082904603bcb2339a7db3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x849D 5444 bytes
font_01_sfnt_off0000971e.bin
74ebc9bc34fa69d7d0475dc1aa536c5a78fd537868a397315a8e4c7225f0b13c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x971E 12956 bytes
font_02_sfnt_off0000be3f.bin
24ed94c8b966c328cd4c8173f919aaa7e0388f7ede4d3e07aa2740f546aee189		 pdf-font-stream PDF embedded font (sfnt) at offset 0xBE3F 16816 bytes

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