Malicious PDF — malware analysis report

Static analysis result for SHA-256 265d46a14b313042…

MALICIOUS

PDF

46.0 KB Created: 2020-07-31 05:58:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 76cf2e8e835106c102962f13eeaeee5f SHA-1: 817857c20239aa430cf20ef32cdb066181855bdf SHA-256: 265d46a14b313042bac0fe00f4198f8280b89e52844883fd54b705ea7c219b2e
200 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File Execution: User Execution T1059.003 Command and Scripting Interpreter: Windows Command Shell T1059.001 Command and Scripting Interpreter: PowerShell

The PDF contains a link farm and a redirector to a known malicious domain, indicating a phishing or malware distribution attempt. Heuristics indicate the document is designed to trick the user into running a command directly (ClickFix social engineering), likely to download and execute a second-stage payload. The embedded URLs, particularly the redirector, are key indicators of this malicious intent.

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.
  • Clipboard command execution lure high SE_CLIPBOARD_COMMAND_LURE
    Document tells the user to copy or paste clipboard content into Run, PowerShell, cmd, or another shell-like execution context
  • ClickFix social engineering attack high SE_CLICKFIX
    Document instructs the user to press Win+R or paste a command into a terminal — consistent with ClickFix attacks that bypass macro restrictions by tricking users into running malicious commands directly
  • 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=change+pdf+text+mac
    • http://files.onwardcatholicsoldier.com/uploads/1/3/1/4/131453028/jodazija-nisevenevenif.pdf
    • http://files.metlifelostpensions.com/uploads/1/3/1/3/131381772/tudinadajuxanigolib.pdf
    • http://files.stmichaelukrainiancatholicbaltimore.org/uploads/1/3/1/6/131637853/vetadiwopuje.pdf
    • http://files.wjiinc.org/uploads/1/3/1/4/131483955/b54a2a66e4a.pdf
    • http://files.stmichaelukrainiancatholicbaltimore.org/uploads/1/3/1/6/131
    • https://cdn.shopify.com/s/files/1/0430/9018/2297/files/33194688417.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/lenibokufilitixesokan.pdf
    • https://cdn.shopify.com/s/files/1/0430/2874/2298/files/78554231005.pdf
    • https://cdn.shopify.com/s/files/1/0437/8414/3010/files/31408951942.pdf
    • https://cdn.shopify.com/s/files/1/0431/7796/7776/files/44528818708.pdf
    • https://cdn.shopify.com/s/files/1/0432/7643/5621/files/zinaxizelekulajedidujef.pdf
    • https://cdn.shopify.com/s/files/1/0431/5391/6060/files/daxesazaxovojexo.pdf
    • https://cdn.shopify.com/s/files/1/0430/5806/9655/files/77387663098.pdf
    • https://cdn.shopify.com/s/files/1/0433/7562/4355/files/noboreziwuz.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/65431134640.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/78992801071.pdf
    • https://cdn.shopify.com/s/files/1/0431/6676/1120/files/tolunevonodejene.pdf
    • https://cdn.shopify.com/s/files/1/0432/7214/3001/files/33505410572.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_off000076bc.bin
9e97a6bebd17198758d994b9d17f02696e5a213bd73012fbf6212beb2cf5848c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x76BC 4984 bytes
font_01_sfnt_off0000878a.bin
975b69de9681c858033d4634b4829fedb096e803b09083fa3b60638d39b8851d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x878A 10376 bytes

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