Malicious PDF — malware analysis report

Static analysis result for SHA-256 be89d25e5a2979e6…

MALICIOUS

PDF

45.7 KB Created: 2020-08-31 18:19:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: dff2e3d5a77e1cdc25a3ae7726895829 SHA-1: 787323f8f9b709aa68d9b05227ad5e0ba5c9ab7d SHA-256: be89d25e5a2979e6c53d3f369fdf1b66ebbd725e02325418f08362a92161e08b
138 Risk Score

Malware Insights

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

The PDF contains a link farm and a malicious redirector URL, indicating a phishing or scam attempt. The document body text and heuristics suggest a lure related to invoices or payment requests, combined with a call to action to download a file. The primary malicious IOC is the redirector URL, which is likely used to deliver a secondary payload or lead the user to a phishing site.

Heuristics 5

  • 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.
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=statement+of+assets+and+liabilities+template+australia
    • https://cdn.shopify.com/s/files/1/0433/7870/4536/files/shell_scripting_cheat_sheet.pdf
    • https://cdn.shopify.com/s/files/1/0434/4433/8838/files/sotadazureve.pdf
    • https://cdn.shopify.com/s/files/1/0440/8773/8533/files/nuzobomupexixaselozibos.pdf
    • https://cdn.shopify.com/s/files/1/0437/5874/7800/files/arithmetic_reasoning_practice_test.pdf
    • https://cdn.shopify.com/s/files/1/0429/8647/1587/files/palmistry_lines_and_meanings.pdf
    • https://cdn.shopify.com/s/files/1/0438/9735/6443/files/apepdcl_app_for_iphone.pdf
    • https://cdn.shopify.com/s/files/1/0432/9019/8180/files/xenisisufij.pdf
    • https://cdn.shopify.com/s/files/1/0436/0906/3586/files/mckinsey_7s_framework_case_study.pdf
    • https://cdn.shopify.com/s/files/1/0437/5019/5354/files/dinamalar_today_newspaper_download.pdf
    • https://cdn.shopify.com/s/files/1/0431/4651/0504/files/pass_naplex_now.pdf
    • https://static.usrfiles.com/ugd/b8c837_c5576bb4e82e473a9abac39e90c939a7.pdf
    • https://static.usrfiles.com/ugd/1849a1_691c59999051446eaf5aa2e52d4c9623.pdf
    • https://static.usrfiles.com/ugd/0cd3a8_fcfd0e6b5afb47339d7d2a9bd7b6440f.pdf
    • https://static.usrfiles.com/ugd/286fb8_0024c70fef2946d09b4d12e194813df5.pdf
    • https://static.usrfiles.com/ugd/b8c837_070088fb37e64e268fdf9a8b0129cb64.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_off00005b10.bin
e5850d48ce056ac63e56b32bb6712dda62fe709e7c6841c48cbe6fca8e8023ab
pdf-font-stream PDF embedded font (sfnt) at offset 0x5B10 5428 bytes
font_01_sfnt_off00006d69.bin
bf03e5601eef0e13a04aa5ecdf9dc2dfb971c270d182ef8dc415dab944f7e826
pdf-font-stream PDF embedded font (sfnt) at offset 0x6D69 9684 bytes
font_02_sfnt_off00008ebe.bin
4548795d32db3ee04697e785a21983a9945f4906a70b92d6d7a89b5a69383771
pdf-font-stream PDF embedded font (sfnt) at offset 0x8EBE 17560 bytes