Malicious PDF — malware analysis report

Static analysis result for SHA-256 56831bc0285d7f4e…

MALICIOUS

PDF

49.4 KB Created: 2020-08-19 03:43:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 958e2527c7f4e1e29d3d67fdfe2b7f01 SHA-1: 5c4d76c3bb24ec4e61c938b1d29b6bbf521016b1 SHA-256: 56831bc0285d7f4e16bbda076ee8b83590b3fb5a806c252b10074387669399f0
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a heuristic firing for PDF_MALICIOUS_REDIRECTOR_LINK, indicating it points to malicious infrastructure. Additionally, PDF_SEO_LINK_FARM suggests a large number of external PDF links are embedded within the document. The primary malicious URL identified is https://ttraff.com/pify?keyword=bahamut+lagoon+snes++english, which likely serves as a lure to a phishing or malware distribution site. The document body contains garbled text but also includes the malicious URL and several benign-looking Shopify URLs, suggesting an attempt to disguise the malicious intent.

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=bahamut+lagoon+snes++english
    • http://files.whispersofthedarkmoon.net/uploads/1/3/1/3/131378771/a797eb9.pdf
    • http://seken.merriemoore.com/uploads/1/3/2/7/132740285/5c7790d68.pdf
    • http://files.parkcitybrewery.shop/uploads/1/3/1/3/131383982/zitiputeziwelib.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/53940391871.pdf
    • https://cdn.shopify.com/s/files/1/0436/8482/3205/files/72880608662.pdf
    • https://cdn.shopify.com/s/files/1/0429/1405/4300/files/kepobirivenididezun.pdf
    • https://cdn.shopify.com/s/files/1/0429/5557/1356/files/56019025028.pdf
    • https://cdn.shopify.com/s/files/1/0437/9423/5553/files/9630683972.pdf
    • https://cdn.shopify.com/s/files/1/0436/0231/3373/files/59163033130.pdf
    • https://cdn.shopify.com/s/files/1/0436/3649/0398/files/5778478102.pdf
    • https://cdn.shopify.com/s/files/1/0428/3249/4751/files/xosafi.pdf
    • https://cdn.shopify.com/s/files/1/0429/6510/6847/files/nabofirufezagu.pdf
    • https://cdn.shopify.com/s/files/1/0440/9311/2472/files/wogurefibovatolutapuzuruv.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_off00007471.bin
8e6d512765792ac87b3cfa983cec0b15c848d810ce00e881c974e6b376b0d5ac		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7471 3824 bytes
font_01_sfnt_off000081d0.bin
2b0d3c6ca306e2d8f07cf93eeeaf02c8196b4cb4e85c1a87312a7357525a92d1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x81D0 5052 bytes
font_02_sfnt_off000092e2.bin
61d55399de3b55ecab780164e64767d684105220e062a130a56e82f302d32b8a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x92E2 10556 bytes

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