Malicious PDF — malware analysis report

Static analysis result for SHA-256 dd09d68553ee975d…

MALICIOUS

PDF

70.2 KB Created: 2020-08-11 23:54:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 886b89300da7f34d8f66e2a7e490a7e7 SHA-1: 852efe4aef0cf308654350b8b06f12418bc50dea SHA-256: dd09d68553ee975d9f3a3b0d422c4243f758bcedb6100a94116b19aaca5e6fda
120 Risk Score

Malware Insights

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

The PDF contains a mass of external links, with one prominent URL leading to a known malicious redirector. The document body, though heavily obfuscated, contains the same URL, suggesting the primary intent is to redirect the user to malicious infrastructure. The heuristic firings confirm the presence of a malicious redirector and a link farm, indicating a phishing or social engineering attempt.

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.ru/pify?keyword=access+consciousness+foundation+manual+pdf
    • http://files.kaylaberghoff.com/uploads/1/3/0/7/130738675/4470566.pdf
    • http://sifezeb.onwardcatholicsoldier.com/uploads/1/3/2/6/132681670/xudowukalevaxabe.pdf
    • http://files.brewerfirstrobotics.com/uploads/1/3/2/6/132681558/gitulebe.pdf
    • https://cdn.shopify.com/s/files/1/0429/9092/8026/files/pases_de_frica_e_suas_capitais.pdf
    • https://cdn.shopify.com/s/files/1/0427/9838/3260/files/dozimisesadirovob.pdf
    • https://cdn.shopify.com/s/files/1/0433/3414/0056/files/monisofepelovelagam.pdf
    • https://cdn.shopify.com/s/files/1/0449/8564/7272/files/tinkers_construct_alien.pdf
    • https://cdn.shopify.com/s/files/1/0430/9660/4825/files/pimebivegusuxipoj.pdf
    • https://cdn.shopify.com/s/files/1/0431/3268/2397/files/23004609768.pdf
    • https://cdn.shopify.com/s/files/1/0434/2104/0792/files/25776969841.pdf
    • https://cdn.shopify.com/s/files/1/0433/0386/2440/files/derat.pdf
    • https://cdn.shopify.com/s/files/1/0438/3673/5650/files/vikurawukarodeneso.pdf
    • https://cdn.shopify.com/s/files/1/0433/3964/5093/files/ditelurutogajizasafapasa.pdf
    • https://cdn.shopify.com/s/files/1/0437/2027/8171/files/76390705664.pdf
    • https://cdn.shopify.com/s/files/1/0435/1528/1568/files/hostile_takeover_definition.pdf
    • https://cdn.shopify.com/s/files/1/0435/1868/9434/files/bilaspur_university_time_table_2020.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_off0000d37c.bin
de63c9aed9d11b07708ae1ad748ac3c149f6089578b323112d671a3bcbc4c01c		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD37C 5196 bytes
font_01_sfnt_off0000e50d.bin
3ea61fe0cddaeecbff2d2a8aa2f9b146d124dd54ef45833ce8e5b587bbb24c98		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE50D 11384 bytes

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