Malicious PDF — malware analysis report

Static analysis result for SHA-256 1fdd454d10b76ebb…

MALICIOUS

PDF

48.6 KB Created: 2020-08-12 07:44:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8d763aa07595cb241d76b0d7aa8361f0 SHA-1: f1663b12be43201702f84e5df4927d8df7ba8dcd SHA-256: 1fdd454d10b76ebbcd46f14a3cc1f6ba65480c75544fd81176a71818c5e1e658
120 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to a link farm hosted on Shopify. One of these links redirects to a known malicious domain, ttraff.cc. The document body, though heavily obfuscated, contains the same malicious URL and several other unknown URLs that may lead to further malicious content. The primary attack pattern involves social engineering through a deceptive link.

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=you+look+wonderful+tonight+sheet+music+pdf
    • http://files.shlep4ukr.com/uploads/1/3/1/4/131453247/zesexamejimapoxavov.pdf
    • http://files.knightsofmotorhoming.com/uploads/1/3/0/7/130739949/sugulix-kuxugovisobux-pijot.pdf
    • http://files.frostedsugarcookies.com/uploads/1/3/1/1/131164393/b780ff0a71.pdf
    • http://files.5050press.com/uploads/1/3/2/6/132681740/zexaxakizut-rimibu.pdf
    • https://cdn.shopify.com/s/files/1/0433/9502/3013/files/87463708103.pdf
    • https://cdn.shopify.com/s/files/1/0430/0367/4785/files/5479276336.pdf
    • https://cdn.shopify.com/s/files/1/0437/0631/9001/files/joxinosukuromolewolevoji.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/28821374719.pdf
    • https://cdn.shopify.com/s/files/1/0432/3016/7207/files/mabifamipewalibos.pdf
    • https://cdn.shopify.com/s/files/1/0435/9513/7181/files/kanakadhara_stotram_lyrics_in_telugu.pdf
    • https://cdn.shopify.com/s/files/1/0432/7863/1072/files/96679913118.pdf
    • https://cdn.shopify.com/s/files/1/0434/3640/8982/files/artificial_insemination_in_pigs.pdf
    • https://cdn.shopify.com/s/files/1/0432/8102/3140/files/accidente_cerebrovascular_isquemico_tratamiento.pdf
    • https://cdn.shopify.com/s/files/1/0435/2717/6344/files/21182705807.pdf
    • https://cdn.shopify.com/s/files/1/0431/2052/5469/files/xetoporunebanim.pdf
    • https://cdn.shopify.com/s/files/1/0430/9316/4199/files/tuwatewojuginonawibe.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_off00007dae.bin
b39a54d6605837d1ec7c165ae158d80d9a9bc0912e1816a3b4afe742bb8cf75f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7DAE 5476 bytes
font_01_sfnt_off0000903d.bin
66e1e178dc04d5068568623b12960a092df354b8c3a335b5cc871dd6f079569e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x903D 10844 bytes

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