Malicious PDF — malware analysis report

Static analysis result for SHA-256 dc2fb215a625ed12…

MALICIOUS

PDF

53.3 KB Created: 2020-08-24 21:16:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 65ec462e00ccdce56049f1584708a30a SHA-1: abdb86b4af837c251a23aaa4c027f2a4408f8807 SHA-256: dc2fb215a625ed12480dfca3d2b08ea6a7226834da15ee348bf676efd3a1a971
120 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/pify?keyword=srimad+bhagavatam+telugu+audio+free'. This URL is likely used to redirect the user to a malicious site. The document body, though heavily obfuscated, also contains this URL, suggesting it's the primary lure. The file also exhibits characteristics of a link farm, with numerous embedded links, many pointing to Shopify domains, likely to improve search engine ranking for malicious content.

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.ru/pify?keyword=srimad+bhagavatam+telugu+audio+free
    • http://files.photosbacktolife.com/uploads/1/3/0/8/130813768/jepimatuk.pdf
    • http://files.chimachancreations.com/uploads/1/3/1/0/131070469/lafugijidivosu.pdf
    • https://cdn.shopify.com/s/files/1/0461/4026/0505/files/direvufuroloxebotobusiral.pdf
    • https://cdn.shopify.com/s/files/1/0460/1970/7047/files/bendera_indonesia_format_cdr.pdf
    • https://cdn.shopify.com/s/files/1/0430/8749/5321/files/factores_biopsicosociales.pdf
    • https://cdn.shopify.com/s/files/1/0428/9767/0303/files/baperokiwifeva.pdf
    • https://cdn.shopify.com/s/files/1/0429/1392/3228/files/propaganda_techniques_test.pdf
    • https://cdn.shopify.com/s/files/1/0431/9019/0248/files/geological_time_scale_ncert.pdf
    • https://cdn.shopify.com/s/files/1/0428/9665/4489/files/sample_pom_xml.pdf
    • https://cdn.shopify.com/s/files/1/0429/4931/2665/files/21857080220.pdf
    • https://cdn.shopify.com/s/files/1/0435/1849/2824/files/matlab_zeros_matrix.pdf
    • https://cdn.shopify.com/s/files/1/0433/3872/7589/files/fitbit_app_iphone.pdf
    • https://cdn.shopify.com/s/files/1/0431/6083/0116/files/retusizibitikot.pdf
    • https://cdn.shopify.com/s/files/1/0438/2185/8973/files/xalafusilogaw.pdf
    • https://cdn.shopify.com/s/files/1/0449/4534/2619/files/51486394185.pdf
    • https://cdn.shopify.com/s/files/1/0431/6191/1458/files/eminem_berzerk_lyrics.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/1/0428/9767/0303/files/b

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000813d.bin
148268deb67edc7e9e9ff7675b52f3b78b1b33eabc297709bbc3f72cc4c0e735
pdf-font-stream PDF embedded font (sfnt) at offset 0x813D 5224 bytes
font_01_sfnt_off00009304.bin
0c9dc989c1d287a02ff697b4e7c9c535ddb3c80d5dd7b9a3618899ab7a9f7421
pdf-font-stream PDF embedded font (sfnt) at offset 0x9304 11772 bytes
font_02_sfnt_off0000b7f8.bin
05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176
pdf-font-stream PDF embedded font (sfnt) at offset 0xB7F8 4324 bytes