Malicious PDF — malware analysis report

Static analysis result for SHA-256 9e242034281aba09…

MALICIOUS

PDF

37.7 KB Created: 2020-08-06 20:42:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 581367ef926f1025d592096c688e84ec SHA-1: 638887ca2e0a14d0c4b46e886cad8c18b9b34c8a SHA-256: 9e242034281aba0939334fd1877e9f02c5bb8af3609c6f63fb7eac460281a413
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. Additionally, it exhibits characteristics of a PDF SEO link farm, embedding numerous external PDF links, many hosted on Shopify. The document body, though heavily obfuscated, contains the primary malicious URL. The intent appears to be to redirect the user to a malicious site via the ttraff.com URL, likely for phishing or malware delivery.

Heuristics 3

  • 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.
  • 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=penetapan+kadar+amoksisilin+pdf
    • http://rinuxam.leadpyramidpublishing.com/uploads/1/3/2/6/132695663/tufijakutat.pdf
    • http://files.jafsc.org/uploads/1/3/1/3/131383760/muzeninez.pdf
    • http://files.somewhereintimeathens.com/uploads/1/3/1/0/131070712/fivixuki-muvuma-nirokemufizumi-mavuge.pdf
    • https://cdn.shopify.com/s/files/1/0431/5735/6710/files/c_square_root.pdf
    • https://cdn.shopify.com/s/files/1/0432/2865/9869/files/jarujulodetetipif.pdf
    • https://cdn.shopify.com/s/files/1/0431/4267/6648/files/zasumexejaxanefevelo.pdf
    • https://cdn.shopify.com/s/files/1/0430/4899/2930/files/bored_pile_design_calculation.pdf
    • https://cdn.shopify.com/s/files/1/0434/3509/8264/files/61773733322.pdf
    • https://cdn.shopify.com/s/files/1/0430/7386/3842/files/algebra_practice_questions.pdf
    • https://cdn.shopify.com/s/files/1/0433/4433/0905/files/dudizurazagikizopize.pdf
    • https://cdn.shopify.com/s/files/1/0427/7318/4678/files/99907192905.pdf
    • https://cdn.shopify.com/s/files/1/0438/3080/4637/files/vanilla_wow_engineering_recipes.pdf
    • https://cdn.shopify.com/s/files/1/0428/9409/8598/files/xofuwetokapogosuwet.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/59022585862.pdf
    • https://cdn.shopify.com/s/files/1/0434/5331/7272/files/adaptive_reuse_of_industrial_buildings.pdf
    • https://cdn.shopify.com/s/files/1/0437/8319/2727/files/21532072727.pdf
    • https://cdn.shopify.com/s/files/1/0428/2531/8563/files/lasigagomutaxefi.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_off00005120.bin
ca66b7cf67b3933cb7105ef9c4ad934c467b27ac580614792726830f22816a85
pdf-font-stream PDF embedded font (sfnt) at offset 0x5120 5252 bytes
font_01_sfnt_off000062e9.bin
c7b61429ce80c713c88ff32eecf78f83a92406031b949570ae5b4010c5c0209c
pdf-font-stream PDF embedded font (sfnt) at offset 0x62E9 11744 bytes