Malicious PDF — malware analysis report

Static analysis result for SHA-256 bfa1da292b9e3b55…

MALICIOUS

PDF

47.2 KB Created: 2020-08-04 11:45:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 769a0e214076bd4145dbad9e1b06984e SHA-1: b712362630c938770a1163060487a880c3dd1d28 SHA-256: bfa1da292b9e3b55bd8ec7b734be1c733f71c619d1e54ed1c204362b3673deba
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.cc'. Additionally, it exhibits characteristics of a PDF link farm, with numerous external links, many hosted on Shopify. The document body, though heavily obfuscated, contains the malicious URL and several benign-looking PDF links, suggesting a lure to disguise the malicious intent. The primary attack pattern involves redirecting users to potentially harmful 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.cc/pify?keyword=per+la+gloria+d+adorarvi+sheet+music+pdf
    • http://files.gethilineinsurance.com/uploads/1/3/0/7/130738637/potetenakamalikobo.pdf
    • http://files.intervarsityutah.org/uploads/1/3/2/8/132814050/wuwexi.pdf
    • http://files.ballycastletennisclub.com/uploads/1/3/0/7/130775446/mebono-puzajoxesapur-nakara-xidisipinexegit.pdf
    • http://files.lula.site/uploads/1/3/1/4/131453843/konodigemivivivazetu.pdf
    • https://cdn.shopify.com/s/files/1/0434/6845/6086/files/74925027972.pdf
    • https://cdn.shopify.com/s/files/1/0430/4646/9793/files/rututijilibukogexe.pdf
    • https://cdn.shopify.com/s/files/1/0434/1052/2277/files/lakofikimatimu.pdf
    • https://cdn.shopify.com/s/files/1/0435/7344/4767/files/88314666071.pdf
    • https://cdn.shopify.com/s/files/1/0431/7184/0161/files/interactional_sociolinguistics.pdf
    • https://cdn.shopify.com/s/files/1/0432/5467/7662/files/bedozexalidotodub.pdf
    • https://cdn.shopify.com/s/files/1/0427/4218/6150/files/60575317762.pdf
    • https://cdn.shopify.com/s/files/1/0435/6472/8479/files/remove_column_pandas.pdf
    • https://cdn.shopify.com/s/files/1/0434/0586/9217/files/juzuritalujupoku.pdf
    • https://cdn.shopify.com/s/files/1/0431/8432/4770/files/vasokejikigidowuvaxez.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/magobusiriwolozun.pdf
    • https://cdn.shopify.com/s/files/1/0431/7052/9436/files/87183210717.pdf
    • https://cdn.shopify.com/s/files/1/0433/0350/1989/files/32798214951.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_off0000565d.bin
1ede1b546f1142f3be285a14d2dcb7dc245ce52c23c31316a90e36c1bf43c789
pdf-font-stream PDF embedded font (sfnt) at offset 0x565D 5632 bytes
font_01_sfnt_off00006962.bin
235c6f2d601265941cf42ed6c2fec26cb3977a3ec15c69df3126a69996b33029
pdf-font-stream PDF embedded font (sfnt) at offset 0x6962 15060 bytes
font_02_sfnt_off00009847.bin
fb7b45e24c28c4473d0ca1c6410c593992d9a809009f9c41b5ae32c9142507dd
pdf-font-stream PDF embedded font (sfnt) at offset 0x9847 16120 bytes