Malicious PDF — malware analysis report

Static analysis result for SHA-256 4c95228e3f4268dc…

MALICIOUS

PDF

41.4 KB Created: 2020-08-25 06:57:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6c2238e5e854fd46576559dd4a103f54 SHA-1: 29607ec45a1f5cf259e2f0d8420dfbea4aba863a SHA-256: 4c95228e3f4268dc227ce9d1fb49291517f58be9fa53d37d4d78b664eb0fcefc
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=acronis+true+image+universal+restore+iso'. This indicates the document is designed to redirect users to malicious content. Additionally, a PDF link farm heuristic was triggered, with many links hosted on cdn.shopify.com, suggesting an attempt to obscure the final malicious destination. The document body text also contains the keyword 'Acronis true image universal restore iso', reinforcing the lure.

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=acronis+true+image+universal+restore+iso
    • http://files.betterbowlsbako.com/uploads/1/3/0/7/130776277/1050503.pdf
    • http://files.airywater.com/uploads/1/3/2/7/132740214/namedo.pdf
    • https://cdn.shopify.com/s/files/1/0427/4146/5244/files/58937730941.pdf
    • https://cdn.shopify.com/s/files/1/0430/0262/6202/files/sidalufokanunedo.pdf
    • https://cdn.shopify.com/s/files/1/0431/0453/4692/files/54120434210.pdf
    • https://cdn.shopify.com/s/files/1/0430/3293/6605/files/tosebinuvamexuzofamefajip.pdf
    • https://cdn.shopify.com/s/files/1/0433/8106/3838/files/68886990771.pdf
    • https://cdn.shopify.com/s/files/1/0431/6043/6900/files/jivofizalovotukavoxu.pdf
    • https://cdn.shopify.com/s/files/1/0431/0158/5562/files/2726963621.pdf
    • https://cdn.shopify.com/s/files/1/0437/9095/8749/files/rizuvawiwebe.pdf
    • https://cdn.shopify.com/s/files/1/0438/5597/0454/files/wesozowixalisulutako.pdf
    • https://cdn.shopify.com/s/files/1/0429/2732/5343/files/online_challan_form_sargodha_university.pdf
    • https://cdn.shopify.com/s/files/1/0428/2938/1791/files/429325084.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_off000064a1.bin
85d64a75bcdd7280d7c95252991f62914948a823b9ea628b441fd90de5ab63c1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x64A1 5168 bytes
font_01_sfnt_off0000761c.bin
260bc35b4ec693727517a0cb91520e89f7a2e7c30a19bf4b6ac755bbb3b2cc9a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x761C 9948 bytes

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