Malicious PDF — malware analysis report

Static analysis result for SHA-256 9ec8d1af814ecaca…

MALICIOUS

PDF

53.0 KB Created: 2020-08-14 23:00:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7045cd30723975b2881ea47bb8260686 SHA-1: 3ec5e54ccbe012ed07df9c5cffac7c663ac17143 SHA-256: 9ec8d1af814ecaca1e1a874a3e5cc0fe2ddeda42283248715098582a865840b7
120 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link and a link farm. The document body, though heavily obfuscated, contains text related to 'Scratch 1. 4 free for mac' and a URL that matches the malicious redirector. This suggests the document is designed to trick users into downloading potentially unwanted software or visiting malicious sites.

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=scratch+1.+4+free++for+mac
    • http://tadosa.namkenag.com/uploads/1/3/2/6/132680869/topovudofowoxodobugi.pdf
    • http://files.glitznglamonline.com/uploads/1/3/2/3/132303013/leratokelure.pdf
    • https://cdn.shopify.com/s/files/1/0432/3095/3627/files/29411025690.pdf
    • https://cdn.shopify.com/s/files/1/0428/3236/3676/files/samuzemanorenixovaveb.pdf
    • https://cdn.shopify.com/s/files/1/0431/3628/6877/files/doloxezabenikewibifu.pdf
    • https://cdn.shopify.com/s/files/1/0437/4478/8634/files/luvoxepopisifaf.pdf
    • https://cdn.shopify.com/s/files/1/0430/0213/4681/files/after_2_gratis_ita.pdf
    • https://cdn.shopify.com/s/files/1/0430/2834/9089/files/15790225129.pdf
    • https://cdn.shopify.com/s/files/1/0430/6318/1463/files/42418371459.pdf
    • https://cdn.shopify.com/s/files/1/0437/7369/0017/files/99703525831.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006efb.bin
7fdb33d6a2ab11b526a7f14ccd133e478e9f890784588b2a60cb9e6991b2df2b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6EFB 4820 bytes
font_01_sfnt_off00007f5c.bin
d87781b322ef276ddf12a472c1a6c8bb19f3061017ba8879da8c41f68c57ccf6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7F5C 10348 bytes
font_02_sfnt_off0000a2de.bin
481a2fe9319abdb7eb0387fbe974a621259b34fd49069fb4c9e3c6def2815251		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA2DE 16624 bytes
font_03_sfnt_off0000b90c.bin
05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB90C 4324 bytes

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