Malicious PDF — malware analysis report

Static analysis result for SHA-256 a2bb2ff00cbd743e…

MALICIOUS

PDF

41.6 KB Created: 2020-08-23 02:42:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 71b19882441e0fafd105382fbe9023ed SHA-1: adfb37ddd5ec1f66c1a1d73ce22376d262cd1fce SHA-256: a2bb2ff00cbd743e1d6ba05a4b8bf420ef39754e33e8ff56284b79fc426b06fa
128 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with a critical heuristic firing for a malicious redirector. The primary malicious URL is https://ttraff.cc/pify?keyword=bargaining+power+of+buyers+pdf, which is likely used to redirect users to a phishing or malware distribution site. The document also contains a large number of links to Shopify domains, suggesting a link farm for SEO manipulation or to host malicious content. No scripts were extracted, but the presence of a malicious redirector and numerous links indicates a clear intent to lead the user to a harmful destination.

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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=bargaining+power+of+buyers+pdf
    • http://lovudi.shadesofthetropics.com/uploads/1/3/0/7/130775288/sizobumef-duvofagapoza.pdf
    • http://xapamo.nolababybump.com/uploads/1/3/1/4/131438477/2415b70c688ef8f.pdf
    • http://files.glitzync.com/uploads/1/3/2/3/132303205/pisilixotepofi_jipuzovitu.pdf
    • https://cdn.shopify.com/s/files/1/0433/3764/6245/files/fixed_term_employment_contract_ontario_template.pdf
    • https://cdn.shopify.com/s/files/1/0434/0210/0899/files/11631009489.pdf
    • https://cdn.shopify.com/s/files/1/0433/5661/8917/files/jopopamilikimejududaso.pdf
    • https://cdn.shopify.com/s/files/1/0435/4339/6506/files/67176893527.pdf
    • https://cdn.shopify.com/s/files/1/0431/6512/2720/files/90741918846.pdf
    • https://cdn.shopify.com/s/files/1/0433/4790/2629/files/shake_shack_cardiff_menu.pdf
    • https://cdn.shopify.com/s/files/1/0436/5071/1705/files/zemirabuwari.pdf
    • https://cdn.shopify.com/s/files/1/0434/2104/0792/files/fubumegabare.pdf
    • https://cdn.shopify.com/s/files/1/0435/9897/1038/files/16060044169.pdf
    • https://cdn.shopify.com/s/files/1/0435/0381/2773/files/97948695353.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_off00006452.bin
b51670bd4d7d043825f0e7f4e415a11b03ff3402e50fa1bb525ea1371c48dd8a
pdf-font-stream PDF embedded font (sfnt) at offset 0x6452 5560 bytes
font_01_sfnt_off00007757.bin
d68fe22927ca8841bf882ab4f3d23655de07914e6f9c2267971788f0a36a8c0b
pdf-font-stream PDF embedded font (sfnt) at offset 0x7757 9916 bytes