Malicious PDF — malware analysis report

Static analysis result for SHA-256 e1f17c8b4c177e58…

MALICIOUS

PDF

43.0 KB Created: 2020-08-30 03:57:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 334d4875e4de84ec1f1f3ed0541ba98b SHA-1: 5bf1029e36102ae36c7af00341b025901a39d9aa SHA-256: e1f17c8b4c177e58595244cf99309aa840d5cf670cde425782d63869bee2b05b
140 Risk Score

Malware Insights

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

The PDF contains a malicious redirector link pointing to 'ttraff.cc', which is flagged as malicious. Additionally, it hosts a large number of external PDF links, many hosted on Shopify, suggesting a link farm or SEO manipulation tactic. The document body, though heavily obfuscated, contains the malicious URL and several benign-looking PDF links, reinforcing the lure. The presence of a callback lure heuristic indicates a potential for social engineering, such as a fake tech support scam.

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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns
  • 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/wix?keyword=brownsburg+indiana+licencie+pobo%25C4%258Dky
    • https://cdn.shopify.com/s/files/1/0437/9518/5821/files/kuvilixeje.pdf
    • https://cdn.shopify.com/s/files/1/0431/9064/8996/files/borezeralosugazazupe.pdf
    • https://cdn.shopify.com/s/files/1/0434/1861/5975/files/42418404464.pdf
    • https://cdn.shopify.com/s/files/1/0429/9508/9559/files/ley_general_de_administracion_publica_costa_rica_actualizada.pdf
    • https://cdn.shopify.com/s/files/1/0435/7079/0558/files/lasting_power_of_attorney_guide_lp12.pdf
    • https://cdn.shopify.com/s/files/1/0432/0883/5229/files/vilenodigenoseg.pdf
    • https://cdn.shopify.com/s/files/1/0431/0741/8274/files/javascript_generate_unique_id.pdf
    • https://cdn.shopify.com/s/files/1/0429/1090/8572/files/2563128299.pdf
    • https://static.usrfiles.com/ugd/b8c837_219904eb461341b78c0d4031c6bdbdb9.pdf
    • https://static.usrfiles.com/ugd/493135_1e2d6d63ac634937af8817b835239c03.pdf
    • https://cdn.shopify.com/s/files/1/0431/0315/8433/files/nodonolerif.pdf
    • https://cdn.shopify.com/s/files/1/0461/0903/2612/files/nusaso.pdf
    • https://cdn.shopify.com/s/files/1/0429/8529/1937/files/akuntansi_keuangan_kelas_11.pdf
    • https://cdn.shopify.com/s/files/1/0437/7221/5448/files/52204236765.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_off000067c3.bin
c3a7826ddcbc99bfb2adac54b9c23531ae81fa485bdd789ed7f66e2e278c5fa8
pdf-font-stream PDF embedded font (sfnt) at offset 0x67C3 5832 bytes
font_01_sfnt_off00007b7b.bin
ddf1f5e88c9e7fa65815c1b4a3a010b57f4903b0555966134b27340e32e1c5d3
pdf-font-stream PDF embedded font (sfnt) at offset 0x7B7B 9896 bytes