Malicious PDF — malware analysis report

Static analysis result for SHA-256 20f23b8ede9f5627…

MALICIOUS

PDF

111.8 KB Created: 2020-08-30 10:00:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4dcbf558d3a3616ad4613e9631301148 SHA-1: cd6e778199c9d98bcd181b9c6fd93c8bb49d0aea SHA-256: 20f23b8ede9f5627385625f7c45ea142e959483f6ffcb6ed2ea544fa33688f9b
160 Risk Score

Malware Insights

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

The PDF contains a malicious redirector link pointing to a URL that impersonates a search query for a specific dishwasher error code. This lure is consistent with credential harvesting or MFA abuse. The document also contains a large number of embedded links, many of which point to Shopify domains, suggesting a link farm used for SEO poisoning to attract victims.

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.
  • MFA / one-time-code harvesting lure high SE_MFA_LURE
    Document asks for a one-time code, authenticator approval, or MFA confirmation — consistent with credential phishing kits that steal session tokens or abuse multi-factor authentication
  • 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=frigidaire+gallery+dishwasher+error+code+uo
    • https://static.usrfiles.com/ugd/c162b3_23f382da7b8e464d8b36afdd65a1d0c1.pdf
    • https://static.usrfiles.com/ugd/b8c837_3e1279d65a5043e0b0f3c7dd1854f029.pdf
    • https://static.usrfiles.com/ugd/b8c837_ca40a1fc49a2463e946423faa3ff8284.pdf
    • https://static.usrfiles.com/ugd/02beb7_4fc7ca3e14b44242aeecb6d8682f6afc.pdf
    • https://cdn.shopify.com/s/files/1/0434/8936/2082/files/sedalinisijufonijerol.pdf
    • https://cdn.shopify.com/s/files/1/0432/6152/6166/files/8976014856.pdf
    • https://cdn.shopify.com/s/files/1/0466/3600/7589/files/lebisijuva.pdf
    • https://cdn.shopify.com/s/files/1/0437/8856/6677/files/4th_grade_math_money_worksheets.pdf
    • https://cdn.shopify.com/s/files/1/0434/5911/7206/files/jepitafeponisinufezonup.pdf
    • https://cdn.shopify.com/s/files/1/0438/0763/7661/files/manarizitozunu.pdf
    • https://cdn.shopify.com/s/files/1/0436/0175/6323/files/intermediate_accounting_15th_edition_chapter_15_solutions.pdf
    • https://cdn.shopify.com/s/files/1/0431/4267/6648/files/dimup.pdf
    • https://cdn.shopify.com/s/files/1/0434/7697/5768/files/10296725611.pdf
    • https://cdn.shopify.com/s/files/1/0434/1628/9447/files/mandatario_aduanal.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_off0001785c.bin
9adf47fa904d178b6cc0b67d77d0afa29b74c01b114b03c290191728cfe992ab		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1785C 5352 bytes
font_01_sfnt_off00018a97.bin
7e0ed1e9db6313315e901b4327186bc30b658c1faf878ab760f429e2e1bbcc59		 pdf-font-stream PDF embedded font (sfnt) at offset 0x18A97 11452 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.