Malicious PDF — malware analysis report

Static analysis result for SHA-256 a4afb3ff63cc429b…

MALICIOUS

PDF

45.0 KB Created: 2020-08-03 00:45:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b7482dd22cb14129bcc1d158fe4a072a SHA-1: e82ba7bbfcf54ff27ac19c895759191f69d099ef SHA-256: a4afb3ff63cc429b95739db08bbbd07ead17d15b4756da198da5e3f568a6bd85
200 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious Link T1204.001 Malicious Link T1059.003 Windows Command Shell T1059.001 PowerShell

This PDF document contains a malicious redirector link to 'ttraff.com' which is associated with a lure for 'game bar windows 10'. The document also exhibits characteristics of a ClickFix social engineering attack, instructing the user to press Win+R or paste a command into a terminal. This suggests the PDF is designed to trick the user into executing a malicious command or downloading a payload from the provided URL.

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=game+bar+windows+10
    • http://files.hollyncoletta.com/uploads/1/3/1/0/131070178/7214957.pdf
    • http://files.acjrhighgirlscamp.com/uploads/1/3/1/0/131070751/jexadewizevom_fibider_foxuzosasididuw.pdf
    • http://files.homemadenourishment.com/uploads/1/3/0/7/130739996/sabadufotefezi-foponuxuk.pdf
    • http://files.roslyn327.com.au/uploads/1/3/1/4/131454373/6d3c37d72.pdf
    • http://files.lux-mus.dk/uploads/1/3/1/4/131406412/gabexokiniba.pdf
    • https://cdn.shopify.com/s/files/1/0432/5697/1432/files/4836446292.pdf
    • https://cdn.shopify.com/s/files/1/0431/2009/9488/files/86246797045.pdf
    • https://cdn.shopify.com/s/files/1/0431/6246/8514/files/23538019628.pdf
    • https://cdn.shopify.com/s/files/1/0433/9521/9623/files/89916270868.pdf
    • https://cdn.shopify.com/s/files/1/0427/7154/6279/files/85113322506.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/kenawuvotijogajutimev.pdf
    • https://cdn.shopify.com/s/files/1/0450/4561/2694/files/j._cole_born_sinner_tracklist.pdf
    • https://cdn.shopify.com/s/files/1/0432/5975/6702/files/94116095389.pdf
    • https://cdn.shopify.com/s/files/1/0433/8951/7973/files/83240448238.pdf
    • https://cdn.shopify.com/s/files/1/0431/9408/9635/files/autodesk_inventor_2015_tutorials.pdf
    • https://cdn.shopify.com/s/files/1/0431/2154/1271/files/xinixiv.pdf
    • https://cdn.shopify.com/s/files/1/0437/9816/7713/files/wimezanezuvejaxotonex.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_off000070d4.bin
987aa9ea475d7d47cd4dc8f9c5e45d1a69e2c7b4efe07438621813383f23d840		 pdf-font-stream PDF embedded font (sfnt) at offset 0x70D4 5396 bytes
font_01_sfnt_off00008328.bin
fe4df6fd1d9d6bb53a632ecfffeee815708bc123ee71251b4cf25c00a40b098c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8328 10652 bytes

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