Malicious PDF — malware analysis report

Static analysis result for SHA-256 1b408a67bc059b80…

MALICIOUS

PDF

43.9 KB Created: 2020-08-29 19:37:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 468aa91bf28b55ddca3df1072877538e SHA-1: cebc346fe0abd8dd2493aa283c5df058720f2ce1 SHA-256: 1b408a67bc059b80759bea6a24a07ea257386d9027397dfe1ff021bccbac1ece
120 Risk Score

Malware Insights

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

The PDF document contains numerous embedded links, with a critical heuristic firing indicating a malicious redirector. The primary malicious URL identified is 'https://ttraff.cc/wix?keyword=satan+una+autobiografia+pdf+gratis', which is likely used to redirect users to a phishing or malware-hosting site. The document body, though heavily obfuscated, contains references to the malicious URL and other benign-looking PDF links, suggesting a link farm or SEO poisoning tactic to attract victims.

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=satan+una+autobiografia+pdf+gratis
    • https://cdn.shopify.com/s/files/1/0431/6279/6186/files/23851804176.pdf
    • https://cdn.shopify.com/s/files/1/0464/7357/6616/files/sperry_dm-210a_operating_instructions.pdf
    • https://cdn.shopify.com/s/files/1/0432/9901/2763/files/enigma_otiliei_vol_2.pdf
    • https://static.usrfiles.com/ugd/b8c837_8d4ba40b1a6b4112bf25479cba565d0e.pdf
    • https://static.usrfiles.com/ugd/b8c837_c7d33ede001a4b4d9225f5edc0145288.pdf
    • https://static.usrfiles.com/ugd/de60da_2c17195ccc924f4fbcd4c560f21226f6.pdf
    • https://static.usrfiles.com/ugd/b8c837_a920b7bc1d034a669e644b66760c637d.pdf
    • https://static.usrfiles.com/ugd/b8c837_614f1d280d8e403db046dc441e9ca659.pdf
    • https://cdn.shopify.com/s/files/1/0436/0660/5987/files/76242771098.pdf
    • https://cdn.shopify.com/s/files/1/0434/2074/5893/files/xowuk.pdf
    • https://cdn.shopify.com/s/files/1/0430/9227/9445/files/56853038353.pdf
    • https://cdn.shopify.com/s/files/1/0431/0846/6845/files/tudagamerosuturiwelezes.pdf
    • https://cdn.shopify.com/s/files/1/0438/6874/9979/files/pafomegate.pdf
    • https://cdn.shopify.com/s/files/1/0463/1763/3698/files/gonosetelezekinibabugum.pdf
    • https://cdn.shopify.com/s/files/1/0440/5172/6501/files/38028432176.pdf
    • https://cdn.shopify.com/s/files/1/0432/1918/9915/files/multiplication_and_division_of_fractions_worksheets_with_answers.pdf
    • https://cdn.shopify.com/s/files/1/0446/5029/9555/files/barron_s_regents_living_environment.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_off00005f53.bin
7805acac5e840a4d89b70502db27198448b6095868e22cf31bbf7d5878b18fa8
pdf-font-stream PDF embedded font (sfnt) at offset 0x5F53 5184 bytes
font_01_sfnt_off000070e4.bin
87bd38dd5e25f0159fa88beabc69bc42edb5d7d3edb8cd60e08819297fac72ea
pdf-font-stream PDF embedded font (sfnt) at offset 0x70E4 10524 bytes
font_02_sfnt_off000092de.bin
7f6049e5011acf0e8581793f2bc2bb947aac2929fdb77abc318b2a6155c1ef71
pdf-font-stream PDF embedded font (sfnt) at offset 0x92DE 4324 bytes