Malicious PDF — malware analysis report

Static analysis result for SHA-256 20c6e9bf166d7d21…

MALICIOUS

PDF

44.8 KB Created: 2020-09-17 12:10:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 1ada28526129168b87c5c552e9519f3d SHA-1: 98f631cf183b489f3d3204b26db5c724381c53d7 SHA-256: 20c6e9bf166d7d211d27af9f50813f84ebbc689033aaeaee3e68702a75ff5b52
140 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 User Execution: Malicious Link

The PDF contains multiple links to external websites, with at least one identified as a malicious redirector. The document body, though heavily obfuscated, contains text suggesting it's a manual, which aligns with the 'SE_CALLBACK_LURE' heuristic indicating a potential callback phishing or tech-support scam. The primary attack vector involves tricking the user into clicking the embedded malicious link.

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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns
  • 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.club/wix?keyword=scotsman+dce33+manual
    • http://files.pinkdreamz.com/uploads/1/3/1/3/131379380/tixoveven-sopanolusukaf-godudulob-zowoje.pdf
    • http://nolulot.bloodlineartstudios.com/uploads/1/3/1/4/131437158/jenexivuwiruruselo.pdf
    • http://japegotik.theworkersclub.com.au/uploads/1/3/0/8/130814328/dc8f95.pdf
    • https://cdn.shopify.com/s/files/1/0432/1860/0103/files/beleridowanijejol.pdf
    • https://cdn.shopify.com/s/files/1/0430/2100/9053/files/40353529674.pdf
    • https://cdn.shopify.com/s/files/1/0437/7945/7175/files/lefabusugovetejo.pdf
    • https://cdn.shopify.com/s/files/1/0432/6418/0390/files/90752459212.pdf
    • https://cdn.shopify.com/s/files/1/0431/4451/1645/files/diroguveretikuxapitejebek.pdf
    • https://cdn.shopify.com/s/files/1/0440/4382/9398/files/8453618618.pdf
    • https://cdn.shopify.com/s/files/1/0435/2973/2248/files/zamerunepojejupofebomufix.pdf
    • https://cdn.shopify.com/s/files/1/0430/8421/8532/files/lagefazatarobegure.pdf
    • https://cdn.shopify.com/s/files/1/0430/3162/5882/files/boom_beach_troop_guide.pdf
    • https://cdn.shopify.com/s/files/1/0432/9642/4096/files/givexefulotivivov.pdf
    • https://cdn.shopify.com/s/files/1/0435/0840/0280/files/20234363166.pdf
    • https://cdn.shopify.com/s/files/1/0431/9880/8224/files/no_doubt_it_s_my_life_lyrics.pdf
    • https://cdn.shopify.com/s/files/1/0439/0577/7832/files/3052345109.pdf
    • https://cdn.shopify.com/s/files/1/0431/3081/4626/files/55464119462.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_off00007044.bin
be43ed6fc8e0580eb52fe6695d58a51bbe3791d48a7ad01fd0980a03cf46a705
pdf-font-stream PDF embedded font (sfnt) at offset 0x7044 5256 bytes
font_01_sfnt_off0000820f.bin
9f8bbd10b8df8c198f8e6c7b62d6c273c3f3c66b89b05b231e6962f57301e08a
pdf-font-stream PDF embedded font (sfnt) at offset 0x820F 10488 bytes