Malicious PDF — malware analysis report

Static analysis result for SHA-256 ddc8a0896a27391f…

MALICIOUS

PDF

46.8 KB Created: 2020-08-29 13:23:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: aa202126cfaa47762c0fe656ae5673dd SHA-1: 7f2fefb013cc8cb7d446bab8f2067095ca3c1dc5 SHA-256: ddc8a0896a27391f9cc09d23f5d25dfa89eb7f3296035b63dad7bec842a1ba55
128 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.cc'. Additionally, it exhibits a PDF link farm heuristic, suggesting an attempt to manipulate search engine results or distribute content. The document body contains the same malicious URL, reinforcing the lure. The presence of a 'download button' heuristic further supports the malicious intent of directing users to external content.

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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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/wix?keyword=naruto+impact+iso+ppsspp+high+compress
    • https://cdn.shopify.com/s/files/1/0428/3236/3676/files/medical_microbiology_laboratory.pdf
    • https://cdn.shopify.com/s/files/1/0431/7921/2959/files/fozem.pdf
    • https://cdn.shopify.com/s/files/1/0437/6880/7578/files/google_sheets_google_maps_api.pdf
    • https://cdn.shopify.com/s/files/1/0430/2359/7725/files/diseduso.pdf
    • https://static.usrfiles.com/ugd/b8c837_283fb3897a294bedabd8e8dd2706be84.pdf
    • https://static.usrfiles.com/ugd/b8c837_5a9295d27e8b4944bd187d4ef9afdfad.pdf
    • https://cdn.shopify.com/s/files/1/0447/2619/0234/files/branches_of_artificial_intelligence.pdf
    • https://cdn.shopify.com/s/files/1/0430/8929/7568/files/75691035123.pdf
    • https://cdn.shopify.com/s/files/1/0439/4339/5483/files/xisomofoje.pdf
    • https://cdn.shopify.com/s/files/1/0433/8375/0821/files/17928034288.pdf
    • https://cdn.shopify.com/s/files/1/0434/3067/4597/files/31158837073.pdf
    • https://cdn.shopify.com/s/files/1/0440/1345/3470/files/vonudado.pdf
    • https://cdn.shopify.com/s/files/1/0432/9121/3988/files/cultural_barriers_of_communication.pdf
    • https://cdn.shopify.com/s/files/1/0463/2690/7040/files/31734928123.pdf
    • https://cdn.shopify.com/s/files/1/0434/2058/2050/files/67035370894.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_off000062eb.bin
59b75863d000c29d0fb6001f44dbbbe8095b70188eda3f0f6f877896b1320289
pdf-font-stream PDF embedded font (sfnt) at offset 0x62EB 5940 bytes
font_01_sfnt_off00007796.bin
498ffa29ff527620fdf7a42daa5466363255af70bf52c536992ccc8aaa8783cf
pdf-font-stream PDF embedded font (sfnt) at offset 0x7796 5284 bytes
font_02_sfnt_off0000896e.bin
e57acf56f727dfec3ca0ae5789d6aac6c688d621395b199b6592cdd352dfabcf
pdf-font-stream PDF embedded font (sfnt) at offset 0x896E 10120 bytes