Malicious PDF — malware analysis report

Static analysis result for SHA-256 f20eb621f5521936…

MALICIOUS

PDF

45.2 KB Created: 2020-09-04 21:26:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 47937980b58935843e0aa4ed6a8b611c SHA-1: 382539aec4db2acf64b4e82af9897532eed49955 SHA-256: f20eb621f55219369c420d85f0052f2b3cd3a2cc08718ef39928b2c5600338fa
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, specifically pointing to 'https://ttraff.link/wix?keyword=accounting+standard+2+pdf+icai'. Additionally, it exhibits a PDF link farm heuristic, indicating a large number of external links, with the first being 'https://static.usrfiles.com/ugd/3ceeb9_dfd95ccdd200444f941e9cea76ec6866.pdf'. The document body, though heavily obfuscated, contains the same redirector URL, reinforcing its malicious intent.

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.link/wix?keyword=accounting+standard+2+pdf+icai
    • https://static.usrfiles.com/ugd/3ceeb9_dfd95ccdd200444f941e9cea76ec6866.pdf
    • https://static.usrfiles.com/ugd/4e6dd5_72395f0960f4484ba8e2f2ec4569681a.pdf
    • https://static.usrfiles.com/ugd/63022f_a189e346d2e4430bb87ac7ae7cd89796.pdf
    • https://static.usrfiles.com/ugd/57c819_4db36642f7f04bc2b39b8752cb62b548.pdf
    • https://cdn.shopify.com/s/files/1/0432/8049/8841/files/24341489675.pdf
    • https://cdn.shopify.com/s/files/1/0432/0791/7729/files/facebook_lite_for_windows_7.pdf
    • https://cdn.shopify.com/s/files/1/0428/3216/7068/files/judajunafunaruzoriji.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/1402562920.pdf
    • https://cdn.shopify.com/s/files/1/0452/5624/5408/files/javascript_tutorial_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0437/0661/3912/files/13790089627.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/gefoviliruvowej.pdf
    • https://cdn.shopify.com/s/files/1/0439/1780/3675/files/61113269832.pdf
    • https://cdn.shopify.com/s/files/1/0429/2784/9639/files/53207354891.pdf
    • https://cdn.shopify.com/s/files/1/0430/3945/7431/files/tatokutuxusenuvazumus.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/
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/f

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007263.bin
b43af9bf06f5cfbcb8bfda96a535e94fb90911305b00410085157b7cce702d82		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7263 5412 bytes
font_01_sfnt_off000084e1.bin
27bc4e57d9f4ba0aae1b7cb1797c9e9962c5557cf3230dd7555695113a6ca831		 pdf-font-stream PDF embedded font (sfnt) at offset 0x84E1 10212 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.