Malicious PDF — malware analysis report

Static analysis result for SHA-256 cc2f719105a30cb6…

MALICIOUS

PDF

43.8 KB Created: 2020-08-08 18:52:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7593e088d1e9c0d78072e001a0b52cc1 SHA-1: c86da675521a10790ed7044f863dbcfc5b65abc9 SHA-256: cc2f719105a30cb6ec8f428f2e94b4523a292c9ccc5cfb4ae98da14d5c5be580
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to a link farm hosted on cdn.shopify.com, and one critical link to a known malicious redirector at ttraff.com. The document body, though heavily obfuscated, contains the URL that is also present in the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. This suggests the document's primary purpose is to redirect users to malicious infrastructure, likely for further exploitation or phishing. No scripts were extracted, limiting the analysis of direct execution capabilities.

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=boundary+value+problems+partial+differential+equations+pdf
    • http://xujisiki.erikgjesfjeld.net/uploads/1/3/1/1/131164312/tonatuvenir-bavuloxo.pdf
    • http://files.missyhart.com/uploads/1/3/1/4/131483275/bcd85b20.pdf
    • http://files.theces.org/uploads/1/3/1/3/131380625/b50e24.pdf
    • https://cdn.shopify.com/s/files/1/0430/4578/1665/files/removurabaxinozosi.pdf
    • https://cdn.shopify.com/s/files/1/0433/7578/8188/files/99592612427.pdf
    • https://cdn.shopify.com/s/files/1/0432/4586/3067/files/bible_quiz_malayalam.pdf
    • https://cdn.shopify.com/s/files/1/0431/9690/7678/files/9844522121.pdf
    • https://cdn.shopify.com/s/files/1/0430/7514/1783/files/54466799265.pdf
    • https://cdn.shopify.com/s/files/1/0430/8523/4338/files/dopepezuxefikelezav.pdf
    • https://cdn.shopify.com/s/files/1/0431/8684/7903/files/espn_brad_hand.pdf
    • https://cdn.shopify.com/s/files/1/0440/1060/2661/files/pdf_reverse_page_order_online.pdf
    • https://cdn.shopify.com/s/files/1/0434/5639/7464/files/how_to_delete_linkedin_messages.pdf
    • https://cdn.shopify.com/s/files/1/0430/9427/8293/files/68433555964.pdf
    • https://cdn.shopify.com/s/files/1/0438/2982/1600/files/joledisoridipawawaxakoger.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_off00005693.bin
e4003d5099471ef70fca207d72f2459fd9b6823842403ff7a5afd0841cb1ee3e
pdf-font-stream PDF embedded font (sfnt) at offset 0x5693 5664 bytes
font_01_sfnt_off000069ca.bin
b084df0b7b3d0f57be4626b0adcee71ad5027025ef0998363a5984a87208ffed
pdf-font-stream PDF embedded font (sfnt) at offset 0x69CA 10344 bytes
font_02_sfnt_off00008d1a.bin
1396562ca3b520584892f4bd50ff39b0722e014cdbc1625119a677b71e1270af
pdf-font-stream PDF embedded font (sfnt) at offset 0x8D1A 16064 bytes