Malicious PDF — malware analysis report

Static analysis result for SHA-256 f5ac6f217d85e129…

MALICIOUS

PDF

43.5 KB Created: 2020-08-09 00:57:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5c0a319f59c5995d02b073757e4097cf SHA-1: ccf3e20fbb56c7a264831951eafc032092dc229b SHA-256: f5ac6f217d85e1299d383a2f2f426495e3808d3ecc098cd9fec4fa181e4c646d
128 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 User Execution: Malicious Link T1059.001 PowerShell

The PDF file contains multiple embedded links, with one specifically identified as a malicious redirector. The document body, though heavily obfuscated, contains text related to 'Unisa application appeal form 2020 pdf' and a URL that appears to be a lure. The primary malicious link, https://ttraff.cc/pify?keyword=unisa+application+appeal+form+2020+pdf, redirects to further infrastructure, indicating a phishing or credential harvesting attempt.

Heuristics 4

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=unisa+application+appeal+form+2020+pdf
    • http://vurupowi.javiermanriqueart.com/uploads/1/3/1/6/131606407/6229285.pdf
    • http://files.theeclecticcats.com/uploads/1/3/1/6/131637325/fced1db.pdf
    • http://files.cccsbands.com/uploads/1/3/0/7/130740256/4636581.pdf
    • https://cdn.shopify.com/s/files/1/0454/2929/3214/files/24011326736.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/xakuxosisubesabemobaf.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/99397771733.pdf
    • https://cdn.shopify.com/s/files/1/0434/6950/4662/files/sound_of_silence_tab.pdf
    • https://cdn.shopify.com/s/files/1/0448/3871/5552/files/epson_xp_200_manual.pdf
    • https://cdn.shopify.com/s/files/1/0429/9712/1178/files/31770731339.pdf
    • https://cdn.shopify.com/s/files/1/0428/5743/1199/files/87491138740.pdf
    • https://cdn.shopify.com/s/files/1/0440/4156/8421/files/payback_period_advantages_and_disadvantages.pdf
    • https://cdn.shopify.com/s/files/1/0433/7047/9766/files/dinobejeruxagap.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/54440827626.pdf
    • https://cdn.shopify.com/s/files/1/0434/1350/4156/files/27550205984.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006a62.bin
555c2c8bdff862cef604ac594f8d83b256f79239ded8f761333abdbe2338237e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6A62 5564 bytes
font_01_sfnt_off00007d3e.bin
0ca55b6d71a83df97e7d7bb7ffa2e3f8d41dcad0c201a66bdbc617c21595c253		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7D3E 10396 bytes

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