Malicious PDF — malware analysis report

Static analysis result for SHA-256 fa7babb70f0fb57e…

MALICIOUS

PDF

56.2 KB Created: 2020-08-29 18:07:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7b963eeec82fa0503efef2abe3d3b68b SHA-1: 42ecd97d6484e0e81e8e1e2b9fb47e3ba6ef4a03 SHA-256: fa7babb70f0fb57eeca97bea9913c84cf0774f4d9b49e563389b867c1f95bff3
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/wix?keyword=aristoteles+onassis+biografia+pdf'. This URL is likely used to lure users into clicking the link, disguised as a biography PDF, which then redirects to malicious infrastructure. The document body, though heavily obfuscated, also contains this URL and other benign-looking PDF links, suggesting a link farm or redirection tactic. No scripts were extracted from this sample.

Heuristics 3

  • 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.
  • 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=aristoteles+onassis+biografia+pdf
    • https://static.usrfiles.com/ugd/b8c837_11f23be4674c416ebfa7e960a66256f8.pdf
    • https://static.usrfiles.com/ugd/b8c837_12fd0a32d3f2497f89dbb47531d53898.pdf
    • https://static.usrfiles.com/ugd/b8c837_b02aa0ade46f4f23bf2127895aa77f3b.pdf
    • https://static.usrfiles.com/ugd/b8c837_e60d38d172564e7582d1c6a0d27d4e02.pdf
    • https://static.usrfiles.com/ugd/b8c837_24929345fbb940dbb2dee78f07c4ccf0.pdf
    • https://static.usrfiles.com/ugd/3649d2_b9757b2a0263409cad8a1c5cf9fc99d7.pdf
    • https://static.usrfiles.com/ugd/b8c837_8a1106e07fa74690aa14897735df7630.pdf
    • https://cdn.shopify.com/s/files/1/0431/7960/6176/files/najipe.pdf
    • https://cdn.shopify.com/s/files/1/0432/6676/9051/files/86851883185.pdf
    • https://cdn.shopify.com/s/files/1/0428/4085/0598/files/chunky_platform_shoes_yellow.pdf
    • https://cdn.shopify.com/s/files/1/0433/8820/7254/files/ruxumoxikozurebozumi.pdf
    • https://cdn.shopify.com/s/files/1/0429/1608/5923/files/86461457395.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/5561128363.pdf
    • https://cdn.shopify.com/s/files/1/0429/1434/9215/files/enorossi_sickle_bar_mower.pdf
    • https://cdn.shopify.com/s/files/1/0437/6087/7729/files/difference_between_curriculum_and_syllabus.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00008abe.bin
da7f08daaecce13e1e328a11c43951231a2bdf7ed5cfd40206cc9d2e6fad169c
pdf-font-stream PDF embedded font (sfnt) at offset 0x8ABE 5124 bytes
font_01_sfnt_off00009c30.bin
0d3b7ca6842b3425da51e80aecf24ff262e8a7a7ecd2a46132610eef5571f57f
pdf-font-stream PDF embedded font (sfnt) at offset 0x9C30 12332 bytes
font_02_sfnt_off0000c55d.bin
05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176
pdf-font-stream PDF embedded font (sfnt) at offset 0xC55D 4324 bytes