Malicious PDF — malware analysis report

Static analysis result for SHA-256 f89192441f0c9656…

MALICIOUS

PDF

41.8 KB Created: 2020-08-07 19:15:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4ed0915d0357a8c9667d910f89ae2eba SHA-1: 561e63c0136c32a849e27057787bd35bb7bf9639 SHA-256: f89192441f0c965669994d1daa52dcbb3aad44060e577e4af67676db02a76c1c
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to external resources. One critical heuristic firing indicates a malicious redirector link to 'ttraff.com'. The document body, though heavily obfuscated, also contains this URL, suggesting an attempt to lure users to malicious infrastructure. The presence of numerous PDF links, many hosted on Shopify, suggests a link farm or SEO poisoning tactic to distribute the malicious content.

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.com/pify?keyword=arabic+words+in+english+translation+pdf
    • http://buvogel.entreprenora.co.uk/uploads/1/3/1/8/131858661/da242407c158.pdf
    • http://lakegagom.doubledekehockey.com/uploads/1/3/2/6/132682076/semukipaviniwo-kefafenibep.pdf
    • http://files.zeropointmechanic.com/uploads/1/3/2/6/132695384/zogitikibuta-jenolunukexikiv-kaduka.pdf
    • https://cdn.shopify.com/s/files/1/0430/7917/2257/files/waguguxapedatufolu.pdf
    • https://cdn.shopify.com/s/files/1/0427/6636/8935/files/41487218929.pdf
    • https://cdn.shopify.com/s/files/1/0428/3092/1895/files/22232189920.pdf
    • https://cdn.shopify.com/s/files/1/0440/6634/1029/files/pitawaxurug.pdf
    • https://cdn.shopify.com/s/files/1/0428/3518/1724/files/bilderberg_group_members.pdf
    • https://cdn.shopify.com/s/files/1/0435/6653/0728/files/fesesu.pdf
    • https://cdn.shopify.com/s/files/1/0429/2725/9811/files/xovoxawirowojepopaxegiw.pdf
    • https://cdn.shopify.com/s/files/1/0428/1496/3868/files/loving_someone_with_bipolar_disorder_book.pdf
    • https://cdn.shopify.com/s/files/1/0434/8795/3053/files/dexivabokatamusuliwaw.pdf
    • https://cdn.shopify.com/s/files/1/0429/9030/5443/files/84432440567.pdf
    • https://cdn.shopify.com/s/files/1/0433/2742/2632/files/88091837910.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/pujofupokutesigitugut.pdf
    • https://cdn.shopify.com/s/files/1/0432/1955/0370/files/ttw_converted_mods.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_off00006435.bin
d6ec3ac099beebe9a40f3d086c2ef4425f1ea4a6a8e5d025b255b6879b844ec1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6435 5640 bytes
font_01_sfnt_off00007768.bin
c03eb14d532f1545dc7639671bf916a6ce9116541152a039ca269f18e5942d53		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7768 10204 bytes

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