Malicious PDF — malware analysis report

Static analysis result for SHA-256 ca11024353d35488…

MALICIOUS

PDF

42.8 KB Created: 2020-08-18 18:02:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4885a0f65415771b368c0a871fce9f05 SHA-1: 0b0e27be3b65fb1ed05a8e51ea1b63b19dadb547 SHA-256: ca11024353d35488c222aa531b733f0d9a5bb7c2b40dd5aeec441668950268d5
120 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, with one heuristic specifically identifying it as a PDF SEO link farm. The primary URL, 'https://ttraff.cc/pify?keyword=rotation+and+moment+of+inertia+lab+report', is flagged as a malicious redirector. This suggests the document's purpose is to distribute malicious links or manipulate search engine results, rather than deliver a direct payload. No scripts were extracted, and the document body is heavily obfuscated.

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=rotation+and+moment+of+inertia+lab+report
    • http://files.kickitlivingweekly.com/uploads/1/3/1/8/131871614/tilivalaxazu.pdf
    • http://files.cosmicsistershop.com/uploads/1/3/0/9/130969364/8126109.pdf
    • http://files.theoryofimmortality.com/uploads/1/3/0/7/130740465/2e0a80a8b7c6.pdf
    • http://files.centerforwomenfaithandleadership.org/uploads/1/3/0/7/130739073/3696060.pdf
    • https://cdn.shopify.com/s/files/1/0428/8466/1414/files/35608724472.pdf
    • https://cdn.shopify.com/s/files/1/0431/8635/6375/files/xamun.pdf
    • https://cdn.shopify.com/s/files/1/0433/4059/5352/files/josanuvivadadubiwivejevag.pdf
    • https://cdn.shopify.com/s/files/1/0432/6971/8182/files/94844589972.pdf
    • https://cdn.shopify.com/s/files/1/0432/5860/9819/files/koxoviba.pdf
    • https://cdn.shopify.com/s/files/1/0430/9617/8849/files/vovusigedirukolivupep.pdf
    • https://cdn.shopify.com/s/files/1/0440/3508/0342/files/xizasonajokexuzawugixaj.pdf
    • https://cdn.shopify.com/s/files/1/0432/5575/9011/files/58371085122.pdf
    • https://cdn.shopify.com/s/files/1/0431/9988/9569/files/voxabilera.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_off00005e39.bin
b2483f20607a6c12c49eaebc73b7f425587bb99484f4c9910512e4f17148d935		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5E39 4944 bytes
font_01_sfnt_off00006ee4.bin
309473c68bd02efa51487e92f9ccc2123d1d633ee7622ddcad6e28bcf3d2625d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6EE4 9784 bytes
font_02_sfnt_off00009048.bin
a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9048 4324 bytes

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