Malicious PDF — malware analysis report

Static analysis result for SHA-256 94a487fee75e61fa…

MALICIOUS

PDF

37.6 KB Created: 2020-08-23 00:41:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9640e0b0f04425208b2f9e3a99793882 SHA-1: e7869e41334fc34d4266de2e90d6f3718f7ad3e1 SHA-256: 94a487fee75e61fa4f1f14046b134cf47e540d10be021368eca0b06ddfd7693e
140 Risk Score

Malware Insights

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

The PDF contains a link farm with a critical redirector link to traff.com, indicating a malicious redirection attempt. Additionally, the document body contains text and embedded URLs that suggest a callback phishing or tech-support scam pretext. The presence of multiple PDF links, including one to a known malicious redirector, strongly suggests an attempt to lead the user to a malicious site for further exploitation or credential harvesting.

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.com/pify?keyword=l298+datasheet+st
    • http://files.curiouskidspreschoolprogram.com/uploads/1/3/1/3/131379820/posipuxivima.pdf
    • http://files.2dplan-shop.com/uploads/1/3/0/8/130815277/3880550.pdf
    • http://files.rkeenelaw.com/uploads/1/3/1/3/131378821/41e1f.pdf
    • https://cdn.shopify.com/s/files/1/0431/7937/6798/files/prime_number_generator_python.pdf
    • https://cdn.shopify.com/s/files/1/0431/5024/6039/files/acis_and_galatea_handel.pdf
    • https://cdn.shopify.com/s/files/1/0431/2314/6906/files/50787959879.pdf
    • https://cdn.shopify.com/s/files/1/0429/9236/9823/files/nudorakupinali.pdf
    • https://cdn.shopify.com/s/files/1/0431/7885/2507/files/20294508846.pdf
    • https://cdn.shopify.com/s/files/1/0434/6249/2310/files/bankruptcy_act_malaysia_2020.pdf
    • https://cdn.shopify.com/s/files/1/0437/1460/9303/files/duxanaxevaruto.pdf
    • https://cdn.shopify.com/s/files/1/0440/7335/3381/files/makutopiridodutogoxeg.pdf
    • https://cdn.shopify.com/s/files/1/0430/6475/4325/files/98419545326.pdf
    • https://cdn.shopify.com/s/files/1/0432/5667/6510/files/nuvugababewu.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_off00005342.bin
8f2154306983b496d62ac996652280bb81fd01804d8c8fb12bfd485c2eb954a5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5342 5208 bytes
font_01_sfnt_off000064e6.bin
a0ac03fd0e5d0e5dbf1e1f0c58fee572a6f4c4677abeff6a44ab1379a7dc55e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x64E6 10832 bytes

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