Malicious PDF — malware analysis report

Static analysis result for SHA-256 b01a2094b772c160…

MALICIOUS

PDF

45.8 KB Created: 2020-08-10 20:40:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 56cd3a099f3e61571dfbbe3dfb0d4e52 SHA-1: 61c398ff605dded6d1e15e90e820241c1080c54c SHA-256: b01a2094b772c16014611f4bd8a283a4493cfdf93fdd695a6e15d2c7d50c0841
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic indicating it links to known malicious redirector infrastructure. The document body, though partially corrupted, contains a URL that is also flagged as a malicious redirector. This suggests the primary goal is to redirect the user to a malicious site, likely for further exploitation or phishing. The presence of numerous other links, many pointing to Shopify, indicates a link farm strategy to obscure the malicious destination.

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=bsc+1st+year+chemistry+notes+in+english+pdf
    • http://files.ms-j.org/uploads/1/3/2/7/132740685/6401768.pdf
    • http://files.lisamariamadera.com/uploads/1/3/1/0/131071240/8241466.pdf
    • http://files.urbanity.ca/uploads/1/3/1/3/131398129/tenutugagevipalu.pdf
    • http://files.onesailorsjourney.com/uploads/1/3/0/9/130969494/zimojujugevawig-pizapakiki-pokaxibajik.pdf
    • http://files.drawingdecentered.com/uploads/1/3/0/8/130874359/dofikijupikuvaj-sazedesisumu.pdf
    • https://cdn.shopify.com/s/files/1/0431/2036/1629/files/63536883675.pdf
    • https://cdn.shopify.com/s/files/1/0431/3546/7682/files/carillas_de_resina_directa.pdf
    • https://cdn.shopify.com/s/files/1/0428/7512/5919/files/19527828365.pdf
    • https://cdn.shopify.com/s/files/1/0433/4924/6110/files/69219923429.pdf
    • https://cdn.shopify.com/s/files/1/0431/5863/4650/files/kagepasosoxarewavoguv.pdf
    • https://cdn.shopify.com/s/files/1/0437/3122/2677/files/gugemava.pdf
    • https://cdn.shopify.com/s/files/1/0435/1901/7124/files/56652013673.pdf
    • https://cdn.shopify.com/s/files/1/0432/2285/9944/files/10402605212.pdf
    • https://cdn.shopify.com/s/files/1/0428/3976/9254/files/64867965495.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_off000069de.bin
8cff285eb3bb30ad1de5da23adcccdc00814d0ae6c851bbd1f702639af0c1644		 pdf-font-stream PDF embedded font (sfnt) at offset 0x69DE 5772 bytes
font_01_sfnt_off00007d65.bin
e9a5a1f6ed95b1e3669933bb00002ad32a1708c3e0b735191cad5e02368a6c7d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7D65 1800 bytes
font_02_sfnt_off000085f3.bin
6c06495a3cded97ee6b1943034c0b8f343c6e36639e2b180c8c3c6d43931d766		 pdf-font-stream PDF embedded font (sfnt) at offset 0x85F3 10516 bytes

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