Malicious PDF — malware analysis report

Static analysis result for SHA-256 1c09a7782d483d85…

MALICIOUS

PDF

49.0 KB Created: 2020-07-28 16:43:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 874b5caaca2339f4b0008ae54d7774c5 SHA-1: a12ef71c82321e3ccfa55a2fe5f853594e5b01a1 SHA-256: 1c09a7782d483d85f153483869eece0c54c891f459f62b7af7f533066a4f7394
140 Risk Score

Malware Insights

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

The PDF file contains numerous links to external resources, with a critical heuristic firing for PDF_MALICIOUS_REDIRECTOR_LINK indicating a link to ttraff.com, a known malicious redirector. Another critical heuristic, PDF_SEO_LINK_FARM, indicates a large number of outbound links, likely for SEO manipulation or to host further malicious content. The document body, though heavily obfuscated, suggests a 'contract of mandate template' lure, and a medium heuristic for SE_CALLBACK_LURE indicates a potential callback phishing or tech-support scam context. No scripts were extracted from this sample.

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=contract+of+mandate+template
    • http://files.tiffanijenee.net/uploads/1/3/0/8/130813616/lasarez-zemixi-lufatezeva-vekagekura.pdf
    • http://files.newspringscommunity.org/uploads/1/3/0/7/130775633/e71f56219.pdf
    • http://files.cbustherapy.com/uploads/1/3/1/3/131379540/mijepojofipegaruwojo.pdf
    • http://files.aristaeusfarms.com/uploads/1/3/1/4/131455463/webozepitulo.pdf
    • http://files.royalreadsandreviews.com/uploads/1/3/2/6/132695258/5761173.pdf
    • http://files.newspringscommunity.org/uploads/
    • https://cdn.shopify.com/s/files/1/0435/4765/6343/files/89682306442.pdf
    • https://cdn.shopify.com/s/files/1/0430/8510/3255/files/66128302277.pdf
    • https://cdn.shopify.com/s/files/1/0428/4946/8582/files/87884795385.pdf
    • https://cdn.shopify.com/s/files/1/0428/6935/8758/files/zamudebidoxu.pdf
    • https://cdn.shopify.com/s/files/1/0428/0408/4899/files/72299282367.pdf
    • https://cdn.shopify.com/s/files/1/0432/1142/3902/files/80856412946.pdf
    • https://cdn.shopify.com/s/files/1/0431/2753/7828/files/16412532264.pdf
    • https://cdn.shopify.com/s/files/1/0428/9665/4489/files/57979519250.pdf
    • https://cdn.shopify.com/s/files/1/0432/5936/3488/files/nomarasubirisobimizebu.pdf
    • https://cdn.shopify.com/s/files/1/0430/0832/7829/files/mavudosogagidakemuxofadud.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/98559129476.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_off0000819f.bin
b17d62268dd9bf28a22002016ad8b13e8f791e549f6eb882cafc24ef79896c7d
pdf-font-stream PDF embedded font (sfnt) at offset 0x819F 4884 bytes
font_01_sfnt_off00009221.bin
66ce687e5f59244dcc48b56554e5e7e63f57aa7c8e9ea48315934c19cc5e4960
pdf-font-stream PDF embedded font (sfnt) at offset 0x9221 10760 bytes