Malicious PDF — malware analysis report

Static analysis result for SHA-256 9c67519761ffc358…

MALICIOUS

PDF

40.6 KB Created: 2020-08-30 23:50:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 376ddee4f7cf22007ca3dc7a1861cb17 SHA-1: b63311d5bd6fb4d7a51578d1b76137265a7a09f9 SHA-256: 9c67519761ffc3585754745a50bb772ca30cd1704217814986fcab9b7116edff
140 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link and a link farm, indicating a likely phishing or scam attempt. The document body, though heavily obfuscated, contains a URL that aligns with the malicious redirector. The presence of a callback lure heuristic further suggests a social engineering tactic to engage the user, likely leading them to the malicious URL for a scam.

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/wix?keyword=hotpoint+wml540+aquarius+manual
    • https://cdn.shopify.com/s/files/1/0437/1503/5291/files/teen_angst_naaah.pdf
    • https://cdn.shopify.com/s/files/1/0438/1173/3664/files/what_is_conduction_current.pdf
    • https://cdn.shopify.com/s/files/1/0428/4622/4551/files/vubube.pdf
    • https://cdn.shopify.com/s/files/1/0439/2629/0587/files/20333370870.pdf
    • https://cdn.shopify.com/s/files/1/0433/9000/9502/files/95436207014.pdf
    • https://cdn.shopify.com/s/files/1/0432/2285/9944/files/criticism_of_behaviorism.pdf
    • https://cdn.shopify.com/s/files/1/0436/5379/1909/files/jidebosazugax.pdf
    • https://cdn.shopify.com/s/files/1/0437/3941/4677/files/67688889872.pdf
    • https://cdn.shopify.com/s/files/1/0429/5196/6873/files/12_tratados_comerciales_de_mexico.pdf
    • https://cdn.shopify.com/s/files/1/0432/5811/8312/files/blank_grocery_list_template_word.pdf
    • https://cdn.shopify.com/s/files/1/0433/6202/5624/files/sidilu.pdf
    • https://cdn.shopify.com/s/files/1/0432/6116/5723/files/joxisalobibekiwar.pdf
    • https://cdn.shopify.com/s/files/1/0431/6522/1023/files/bandcamp_er_ios.pdf
    • https://static.usrfiles.com/ugd/b8c837_92488ebecacd42a48bb8969f0ff89d03.pdf
    • https://static.usrfiles.com/ugd/5ad03d_8fffabc1e0854109935df8979efaa650.pdf
    • https://static.usrfiles.com/ugd/b8c837_1c40d98904134ebeb83011c833cda62f.pdf
    • https://static.usrfiles.com/ugd/3ab5ed_745868e64acb41c6b5884c3685843b22.pdf
    • https://static.usrfiles.com/ugd/40512e_9f124384c5f243e3bef7b034c0e5b059.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_off000060ab.bin
4b063a8ccb23c013b501c2ce95904d45bf350452033aad7e71a4b0b01cece25c
pdf-font-stream PDF embedded font (sfnt) at offset 0x60AB 5496 bytes
font_01_sfnt_off00007352.bin
353646b1c227c588c00daae470edd4dda2a1da687f687e3d1c68e87278e90694
pdf-font-stream PDF embedded font (sfnt) at offset 0x7352 9896 bytes