Malicious PDF — malware analysis report

Static analysis result for SHA-256 adcadc2de417f9e2…

MALICIOUS

PDF

43.7 KB Created: 2020-08-20 21:13:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 583677e742a59372dee65157f4e4f99b SHA-1: 6b6c93df474c0a917717821327efd80fff321097 SHA-256: adcadc2de417f9e2210e84e13068e9949236efbd0b4042c571b9b833cf40cf23
120 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.cc/pify?keyword=springing+daca+form'. Additionally, it exhibits characteristics of a PDF SEO link farm, embedding numerous external links, many of which are hosted on Shopify. The document body, though partially corrupted, contains the same redirector URL and a reference to 'Springing daca form', suggesting a phishing or scam lure. The presence of multiple unknown URLs warrants further investigation.

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=springing+daca+form
    • http://nefujo.fashionspeaks.net/uploads/1/3/1/8/131856166/81317657fadde28.pdf
    • http://files.lavenderwrapswholesale.com/uploads/1/3/1/0/131070846/nusesaza_niwogugovem_namixinuke.pdf
    • https://cdn.shopify.com/s/files/1/0428/5965/9420/files/makerere_university_courses.pdf
    • https://cdn.shopify.com/s/files/1/0435/9313/8333/files/siguwuxafesiwaposet.pdf
    • https://cdn.shopify.com/s/files/1/0432/6116/5723/files/nudixonabivolanemiwaj.pdf
    • https://cdn.shopify.com/s/files/1/0431/2429/3796/files/30547975418.pdf
    • https://cdn.shopify.com/s/files/1/0430/5013/9801/files/xaserujozofodumunefepawi.pdf
    • https://cdn.shopify.com/s/files/1/0437/4436/2647/files/33269065582.pdf
    • https://cdn.shopify.com/s/files/1/0434/6295/1062/files/najasewujulivij.pdf
    • https://cdn.shopify.com/s/files/1/0433/6710/4664/files/hanuman_dj_songs_mp4.pdf
    • https://cdn.shopify.com/s/files/1/0440/7679/4006/files/bias_fx_keygen.pdf
    • https://cdn.shopify.com/s/files/1/0432/2046/7869/files/13770399514.pdf
    • https://cdn.shopify.com/s/files/1/0437/9181/0717/files/28656412381.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_off00006d4d.bin
1ef83c44a03160b2b30634bef190837797290b84a59656e6f9f8fde055636eef		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6D4D 5368 bytes
font_01_sfnt_off00007f73.bin
f98d7ba0c78c57573a49abd2ea547290f17ec401128a9d745b060657cca6b910		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7F73 10248 bytes

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