Malicious PDF — malware analysis report

Static analysis result for SHA-256 9a92d2090c3f0cda…

MALICIOUS

PDF

47.7 KB Created: 2020-08-05 23:15:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c933443de595dca50a912d3735200dea SHA-1: 85111d66dd16c17da388976b0ca95f3205dbbb8c SHA-256: 9a92d2090c3f0cda00accdbc3189c66610e035e46186b5f75c4fe60db1fc9d0b
140 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with one pointing to a known malicious redirector. The document body, though heavily obfuscated, contains the URL 'https://ttraff.com/pify?keyword=makro+june+specials+2020+pdf' and numerous other links hosted on cdn.shopify.com, suggesting a link farm or phishing lure. The heuristic 'PDF_MALICIOUS_REDIRECTOR_LINK' confirms the malicious nature of at least one of the embedded URLs.

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.
  • QR-code redirect lure medium SE_QR_LURE
    Document instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
  • 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=makro+june+specials+2020+pdf
    • http://files.somabodytherapy.com/uploads/1/3/1/3/131398457/zomadeduxizomugatula.pdf
    • http://files.aspervalley.com/uploads/1/3/1/4/131437061/ef9211320d.pdf
    • http://files.billneeds.com/uploads/1/3/1/4/131406149/1572188.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/53567737566.pdf
    • https://cdn.shopify.com/s/files/1/0437/9282/6517/files/zujuxewimanelogazunusaru.pdf
    • https://cdn.shopify.com/s/files/1/0441/1126/5944/files/wusetapepev.pdf
    • https://cdn.shopify.com/s/files/1/0430/6331/2535/files/aisc_base_plate_design_guide.pdf
    • https://cdn.shopify.com/s/files/1/0430/2100/9053/files/wamamabevogugofefujotavav.pdf
    • https://cdn.shopify.com/s/files/1/0430/2058/3065/files/nalomijugasu.pdf
    • https://cdn.shopify.com/s/files/1/0433/9607/1578/files/tawepaler.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/mefopevepal.pdf
    • https://cdn.shopify.com/s/files/1/0427/5381/8790/files/algebraic_identities_formulas.pdf
    • https://cdn.shopify.com/s/files/1/0431/9114/0501/files/68198282229.pdf
    • https://cdn.shopify.com/s/files/1/0431/6574/5314/files/minecraft_pe_block_ids.pdf
    • https://cdn.shopify.com/s/files/1/0429/7375/7603/files/64435642989.pdf
    • https://cdn.shopify.com/s/files/1/0433/0949/8536/files/mujepuzebijavajonep.pdf
    • https://cdn.shopify.com/s/files/1/0431/6797/3538/files/xapadezofu.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_off00007058.bin
cb48c63e70673ed17d01142797abba2b5bdc30ae11ed92898500ab2962da1c98
pdf-font-stream PDF embedded font (sfnt) at offset 0x7058 5568 bytes
font_01_sfnt_off0000836e.bin
11094f46b25ec6267e539c14dc16b8af712936ebac851a70e8b4e3cb3b34fef7
pdf-font-stream PDF embedded font (sfnt) at offset 0x836E 14872 bytes