Malicious PDF — malware analysis report

Static analysis result for SHA-256 2a6034c750eaca54…

MALICIOUS

PDF

36.0 KB Created: 2020-08-01 22:46:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 60134bae854543a8ee721531a9ea9592 SHA-1: 1a49ff99a97f6bd01cb19a19d0f308171dda2d07 SHA-256: 2a6034c750eaca543f304a720c3b1f0a4511ffbb40fac32eea114cf29905cadc
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 external PDF files hosted on various domains, including Shopify. One critical heuristic indicates that the PDF links to known malicious redirector infrastructure, specifically 'ttraff.cc'. The document body, though heavily obfuscated, contains text related to 'Minecraft skin creator pro', suggesting a lure to download potentially unwanted or malicious software. The primary attack pattern involves redirecting users through a link farm to a malicious site.

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=minecraft+skin+creator+pro
    • http://files.agbole.com/uploads/1/3/1/8/131857465/9918a2c.pdf
    • http://files.reelectmayorjohnstontville.com/uploads/1/3/1/8/131871453/1322607.pdf
    • http://files.hedongreenprint.co.uk/uploads/1/3/1/8/131872087/xalikebudupakufexi.pdf
    • http://files.jerusalemgenerations.com/uploads/1/3/1/3/131398367/juraz.pdf
    • http://files.tbclynchburg.org/uploads/1/3/2/8/132815175/zanizadet-gupuku-sujedusuzezef-kefewitejexivo.pdf
    • https://cdn.shopify.com/s/files/1/0428/0510/0707/files/bobadujotebejekulat.pdf
    • https://cdn.shopify.com/s/files/1/0431/7754/1792/files/jozezogi.pdf
    • https://cdn.shopify.com/s/files/1/0434/8719/9394/files/39789166945.pdf
    • https://cdn.shopify.com/s/files/1/0432/3049/4878/files/29871944008.pdf
    • https://cdn.shopify.com/s/files/1/0433/2729/1544/files/betojuna.pdf
    • https://cdn.shopify.com/s/files/1/0432/9432/6944/files/29273015662.pdf
    • https://cdn.shopify.com/s/files/1/0427/7121/8588/files/57628138729.pdf
    • https://cdn.shopify.com/s/files/1/0431/3782/6973/files/36528816181.pdf
    • https://cdn.shopify.com/s/files/1/0434/7317/4680/files/29116048029.pdf
    • https://cdn.shopify.com/s/files/1/0430/8788/8535/files/all_you_zombies_heinlein.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/tutokufumetuja.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004eaf.bin
91eec80c0e500713df01c75faf550692f4a57803111a157c66552d4db336dbf5
pdf-font-stream PDF embedded font (sfnt) at offset 0x4EAF 5044 bytes
font_01_sfnt_off00005ffb.bin
378de247db097c68d1e429cdd4ae4670b3252a81b1e6dfdf3cd2cc8013dc5c12
pdf-font-stream PDF embedded font (sfnt) at offset 0x5FFB 10524 bytes