Malicious PDF — malware analysis report

Static analysis result for SHA-256 59abb94af7dc7e29…

MALICIOUS

PDF

120.1 KB Created: 2020-08-11 03:07:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 120fe1d605d5a5331a404e5c578f92c8 SHA-1: 27472f72f0565efa0e9839829fb1a412fe9e4e43 SHA-256: 59abb94af7dc7e29c823ceeb57c8e6705f14c2f95f46a547550e2d0cd00290cf
160 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. Additionally, it exhibits a PDF link farm heuristic, indicating mass generation of external links. A high-severity heuristic indicates the document attempts to trick users into executing commands by copying and pasting content, likely to interact with the malicious URL. The embedded URL 'https://ttraff.com/pify?keyword=cakephp+tutorial+for+beginner+step+by+step+pdf' is the primary IOC.

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.
  • 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
  • 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=cakephp+tutorial+for+beginner+step+by+step+pdf
    • http://files.accessdriverrehab.com/uploads/1/3/0/7/130775808/fesurepap.pdf
    • http://files.osdarmembers.org/uploads/1/3/0/8/130873810/6210691.pdf
    • http://kigel.yogawithanniebarrett.com/uploads/1/3/2/6/132681946/02b1685.pdf
    • http://jirepiwut.violettapretorius.com/uploads/1/3/0/7/130738914/webofelizolagoxa.pdf
    • https://cdn.shopify.com/s/files/1/0430/7491/2410/files/wixirax.pdf
    • https://cdn.shopify.com/s/files/1/0435/3851/4071/files/kolofiguso.pdf
    • https://cdn.shopify.com/s/files/1/0435/4198/7479/files/2879991406.pdf
    • https://cdn.shopify.com/s/files/1/0431/9143/5422/files/94689502146.pdf
    • https://cdn.shopify.com/s/files/1/0432/7296/2203/files/49501391337.pdf
    • https://cdn.shopify.com/s/files/1/0427/9464/7719/files/bibeze.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/matam.pdf
    • https://cdn.shopify.com/s/files/1/0437/3502/3770/files/body_beast_workout_sheets_improved.pdf
    • https://cdn.shopify.com/s/files/1/0431/3120/7837/files/3616955066.pdf
    • https://cdn.shopify.com/s/files/1/0448/5254/3649/files/the_molecular_biology_of_meiosis_in_plants.pdf
    • https://cdn.shopify.com/s/files/1/0429/0304/4263/files/fagutonaxovirusajusasunu.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_off00017f6e.bin
db286a852433442f1f9376e9eb82f637e2c07929fe358ce0f5076ee7f112d4b3
pdf-font-stream PDF embedded font (sfnt) at offset 0x17F6E 5512 bytes
font_01_sfnt_off00019222.bin
185db7da8d19f39ec12831bc8462ee6521181121580889717ea374eb88d77ed7
pdf-font-stream PDF embedded font (sfnt) at offset 0x19222 15196 bytes
font_02_sfnt_off0001c268.bin
a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f
pdf-font-stream PDF embedded font (sfnt) at offset 0x1C268 4324 bytes