Malicious PDF — malware analysis report

Static analysis result for SHA-256 cb49d1d35f345df9…

MALICIOUS

PDF

65.9 KB Created: 2020-08-20 13:41:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8ee41fd66bf1b2214b75da0a2051d8e5 SHA-1: 1152f35925b227ce51b0ba10374c6f8c39a8b92e SHA-256: cb49d1d35f345df9a653ef1cf05fddc408a8b903cfd1f8f7dc5af191b9ef6966
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to a link farm hosted on Shopify. One of the primary links redirects to a malicious domain, ttraff.com, which is likely used to host further malicious content or phishing pages. The document body, though heavily obfuscated, contains text related to 'automatismo electrico industrial pdf' and the redirector URL, suggesting a lure to trick users into clicking the malicious link.

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=automatismo+electrico+industrial+pdf
    • http://kalugilo.northshorerhythmics.com/uploads/1/3/0/7/130740609/b8dc7a.pdf
    • http://kupen.actdu.org.au/uploads/1/3/1/4/131453358/venanepudufazakuro.pdf
    • http://tazasogud.ccmasonicdesigns.com/uploads/1/3/1/4/131453194/pugit.pdf
    • http://jeped.coyotegame.com/uploads/1/3/0/7/130775478/561a7ab11b3a.pdf
    • https://cdn.shopify.com/s/files/1/0433/8748/6358/files/xenudajafevudadevawowad.pdf
    • https://cdn.shopify.com/s/files/1/0432/1571/6516/files/16011906506.pdf
    • https://cdn.shopify.com/s/files/1/0437/5819/0743/files/vubifo.pdf
    • https://cdn.shopify.com/s/files/1/0432/6581/8782/files/65855248463.pdf
    • https://cdn.shopify.com/s/files/1/0434/3313/2193/files/97848121895.pdf
    • https://cdn.shopify.com/s/files/1/0429/2041/1289/files/pediatric_advanced_life_support_guidelines.pdf
    • https://cdn.shopify.com/s/files/1/0430/9454/0452/files/xebopetunivapejogakiwaki.pdf
    • https://cdn.shopify.com/s/files/1/0428/5192/6183/files/robokiwefovijulaz.pdf
    • https://cdn.shopify.com/s/files/1/0430/5561/2058/files/wusabadape.pdf
    • https://cdn.shopify.com/s/files/1/0464/5493/1624/files/newest_android_software_update.pdf
    • https://cdn.shopify.com/s/files/1/0431/1253/0081/files/gibitawuguminila.pdf
    • https://cdn.shopify.com/s/files/1/0428/5313/8591/files/dusopasomazebodinazu.pdf
    • https://cdn.shopify.com/s/files/1/0431/3094/5693/files/cracking_the_coding_interview_189_programming_questions_and_solutions.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_off0000b773.bin
65397b2bb650dc6a9646b0bd0de5e55aa9ac6d49562545172f3f201fc9dd424c
pdf-font-stream PDF embedded font (sfnt) at offset 0xB773 5172 bytes
font_01_sfnt_off0000c8e6.bin
cacdb3756c359d011b8d71e6761ce7b63c6c942808d002c29396def6869105cb
pdf-font-stream PDF embedded font (sfnt) at offset 0xC8E6 10320 bytes
font_02_sfnt_off0000ec2c.bin
05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176
pdf-font-stream PDF embedded font (sfnt) at offset 0xEC2C 4324 bytes