Malicious PDF — malware analysis report

Static analysis result for SHA-256 27c200901f5bdba8…

MALICIOUS

PDF

43.4 KB Created: 2020-08-13 22:41:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b7bdf221aa13591e459b6fef53629ba4 SHA-1: fa41dac8e68a6ddbf8a07817c990c5d680cb7d2b SHA-256: 27c200901f5bdba86595553a58b05deb0446d4960d3aea67fc41c75e7dca71e2
160 Risk Score

Malware Insights

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

The PDF contains a lure for 'Guild Wars 2 fractals beginner guide' which, upon clicking, redirects to a malicious URL (ttraff.cc). The document also functions as a link farm, directing users to numerous other PDF files hosted on various domains. The presence of a remote-support tool lure suggests a potential pretext for further compromise or social engineering.

Heuristics 4

  • 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.
  • Remote-support tool lure high SE_REMOTE_SUPPORT_LURE
    Document instructs the user to install, open, or connect with a remote-support tool such as AnyDesk, TeamViewer, Quick Assist, or ScreenConnect — high-risk in an unsolicited document
  • 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=guild+wars+2+fractals+beginner+guide
    • http://vesevas.championbuilt.com/uploads/1/3/0/8/130815009/c7b36377.pdf
    • http://files.foodloveblog.com/uploads/1/3/1/3/131380868/vosirijofa.pdf
    • http://files.stevepullinger.com/uploads/1/3/0/8/130814706/xuviworegapunil-fuwukeropubot-wataj-wulowaga.pdf
    • http://naguri.stephaniewilsondc.com/uploads/1/3/1/4/131408899/835180.pdf
    • http://sewid.mymidcenturymodern.co.uk/uploads/1/3/1/3/131398455/8685816.pdf
    • https://cdn.shopify.com/s/files/1/0430/8343/2096/files/74988144459.pdf
    • https://cdn.shopify.com/s/files/1/0437/6271/2734/files/63702760302.pdf
    • https://cdn.shopify.com/s/files/1/0431/7921/2959/files/83162950838.pdf
    • https://cdn.shopify.com/s/files/1/0432/4491/2802/files/wamotubuzetuw.pdf
    • https://cdn.shopify.com/s/files/1/0428/0634/5895/files/selupakorirefaxaket.pdf
    • https://cdn.shopify.com/s/files/1/0429/8198/2361/files/kajizasa.pdf
    • https://cdn.shopify.com/s/files/1/0430/8434/9589/files/97058333194.pdf
    • https://cdn.shopify.com/s/files/1/0445/5255/2612/files/zuxikopis.pdf
    • https://cdn.shopify.com/s/files/1/0435/6512/1695/files/62029203370.pdf
    • https://cdn.shopify.com/s/files/1/0439/0574/5051/files/91561282967.pdf
    • https://cdn.shopify.com/s/files/1/0454/7385/7686/files/curs_apicultor.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_off00006ab8.bin
5eaac7eae84225c273855752230a1a4c4c810691a3766c14a96dde4a2403fb2c
pdf-font-stream PDF embedded font (sfnt) at offset 0x6AB8 5584 bytes
font_01_sfnt_off00007ddb.bin
1c32c945a8f6c2452839cca36a1f8b2f5ebf66049ee5579e5046f3945e5bb5fc
pdf-font-stream PDF embedded font (sfnt) at offset 0x7DDB 10160 bytes