Malicious PDF — malware analysis report

Static analysis result for SHA-256 57d66e8160e4f946…

MALICIOUS

PDF

48.1 KB Created: 2020-08-25 05:33:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 97c3f3a7dac07623d915f55bf43308c1 SHA-1: 86c0b2d1fa45da6955fe3a045126cd1c7e990d57 SHA-256: 57d66e8160e4f9466c2f28adc7948ac432b00fc92826b74e99e142c73c3bca44
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF was flagged as malicious due to a high number of embedded external links, forming a link farm. One of these links, 'https://ttraff.cc/pify?keyword=love+shayari+good+night+image', points to a known malicious redirector. The document body contains garbled text along with this URL, suggesting it is a lure to entice users to click the malicious link. The primary purpose appears to be redirecting users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.cc/pify?keyword=love+shayari+good+night+image
    • http://files.splashoutfitters.com/uploads/1/3/0/7/130738548/jolorinisiwo.pdf
    • http://files.janetbelsky.net/uploads/1/3/1/4/131407572/wukitiguleve_zoxeses_nawimixo_kibakonag.pdf
    • http://kojepu.oshafordentistry.com/uploads/1/3/0/7/130775166/lesifezabimivo_rapepewini_petimifaze.pdf
    • http://mivegerub.moonlightweddingservice.com/uploads/1/3/1/3/131380600/8179373.pdf
    • https://cdn.shopify.com/s/files/1/0431/5797/9304/files/39760671063.pdf
    • https://cdn.shopify.com/s/files/1/0432/3203/4976/files/septic_shock_2020.pdf
    • https://cdn.shopify.com/s/files/1/0434/6095/2229/files/6106806597.pdf
    • https://cdn.shopify.com/s/files/1/0430/9765/3397/files/38122779457.pdf
    • https://cdn.shopify.com/s/files/1/0434/5161/3351/files/bully_math_class_5_answers.pdf
    • https://cdn.shopify.com/s/files/1/0430/0357/6481/files/49801367270.pdf
    • https://cdn.shopify.com/s/files/1/0433/3237/0584/files/almost_a_hero_mod_apk_latest.pdf
    • https://cdn.shopify.com/s/files/1/0430/3152/7577/files/battleground_survivor_battle_royale_mod_apk.pdf
    • https://cdn.shopify.com/s/files/1/0430/4856/6933/files/82715846349.pdf
    • https://cdn.shopify.com/s/files/1/0433/6982/4414/files/47303749967.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005b5c.bin
9622b2d1d15e3ae7277541fe0f74761392e23c8ccb90184020cf5ab1453475e9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5B5C 5096 bytes
font_01_sfnt_off00006c8e.bin
c8d435d7b713caba98fefd5387f7409df257ba34753d172e7f2d3b32bb69cd0d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6C8E 14260 bytes
font_02_sfnt_off000098be.bin
0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333		 pdf-font-stream PDF embedded font (sfnt) at offset 0x98BE 4324 bytes
font_03_sfnt_off0000a6bf.bin
01167fc535accd7026b28890429d8f7012491c653ed7bf60d6f72be03f4d7b99		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA6BF 3068 bytes

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