Malicious PDF — malware analysis report

Static analysis result for SHA-256 80e097483690bbc5…

MALICIOUS

PDF

41.9 KB Created: 2020-08-22 21:12:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 1bd25d0279e1b3e3dfacb71f3b7f7fc8 SHA-1: a7e98328c18bf47f8dd972248f1b5b1e4fa29f76 SHA-256: 80e097483690bbc59cc963bab3c43057fcf9782755ebbfa6799bc462b034e321
160 Risk Score

Malware Insights

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

The PDF contains a mass of external links, including a redirector to a malicious domain, suggesting a link farm or phishing lure. The heuristic 'SE_REMOTE_SUPPORT_LURE' indicates the document attempts to trick the user into installing remote support software, which is a common tactic for social engineering attacks. The primary malicious IOC is the redirector URL, which likely leads to a malicious payload or phishing page.

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.
  • Remote-support tool lure high SE_REMOTE_SUPPORT_LURE
    Document instructs the user to install, open, or connect with a remote-support tool such as AnyDesk, TeamViewer, Quick Assist, or ScreenConnect — high-risk in an unsolicited document
  • 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/pify?keyword=bma+court+report+fees
    • http://files.lolas-ecec.org/uploads/1/3/2/7/132740457/63ebf.pdf
    • http://tivazudil.drmatthewshealthtips.com/uploads/1/3/1/3/131380598/2436755.pdf
    • http://maxozo.comeaucarpentry.com/uploads/1/3/1/0/131071041/47da9a432.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/35035436777.pdf
    • https://cdn.shopify.com/s/files/1/0431/6797/3538/files/katoliv.pdf
    • https://cdn.shopify.com/s/files/1/0431/9395/8560/files/24641368979.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/47878122177.pdf
    • https://cdn.shopify.com/s/files/1/0434/4627/2162/files/teamviewer_connection_blocked_after_timeout.pdf
    • https://cdn.shopify.com/s/files/1/0429/3551/7337/files/fudiliti.pdf
    • https://cdn.shopify.com/s/files/1/0437/4292/0869/files/nikisudel.pdf
    • https://cdn.shopify.com/s/files/1/0438/6252/4069/files/can_bus_protocol.pdf
    • https://cdn.shopify.com/s/files/1/0429/9299/2410/files/catalogo_de_cuentas_de_empresa_comercial.pdf
    • https://cdn.shopify.com/s/files/1/0433/5858/4986/files/ansys_fluent_user_guide_17.pdf
    • https://cdn.shopify.com/s/files/1/0431/9333/5970/files/the_buffettology_workbook_free.pdf
    • https://cdn.shopify.com/s/files/1/0430/6649/1041/files/xegitiri.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_off00006795.bin
3eb332eeb97249587c84ab9b449adbf4bef9c7b06eae627af08d5ab1057f3c48
pdf-font-stream PDF embedded font (sfnt) at offset 0x6795 5176 bytes
font_01_sfnt_off0000790e.bin
04c3dee6adac93ecb10f28bcddcac611dacaf29933ecad9f2996573e0afab64a
pdf-font-stream PDF embedded font (sfnt) at offset 0x790E 10012 bytes