Malicious PDF — malware analysis report

Static analysis result for SHA-256 c3cc5ddffa3798d2…

MALICIOUS

PDF

35.0 KB Created: 2020-08-17 16:44:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 633fe7c5ea1b9773b17ecd0b1fbfe7df SHA-1: 5000c4fb90005d67d74e4736738813949325db1c SHA-256: c3cc5ddffa3798d22350fcf9c14dcef8d20df877bee83ac5073eda9169ca88e0
120 Risk Score

Malware Insights

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

The PDF file contains a deceptive document body and numerous embedded links, a common tactic for SEO poisoning and phishing. One of the embedded URLs, https://ttraff.cc/pify?keyword=today+weather+report+in+my+area, is identified as a malicious redirector. The file also contains a large number of links to external PDFs hosted on various domains, suggesting a link farm designed to manipulate search engine results or distribute malicious content. No scripts were extracted from this sample.

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=today+weather+report+in+my+area
    • http://files.huntingdonphc.com/uploads/1/3/0/7/130740591/fasejiv.pdf
    • http://gofaze.groove-republic.com/uploads/1/3/1/3/131383664/5253473.pdf
    • http://files.lindyjames-christenson.com/uploads/1/3/1/3/131379612/3953267.pdf
    • http://files.justanotherflutist.com/uploads/1/3/1/1/131163920/suwolejujefuvob.pdf
    • https://cdn.shopify.com/s/files/1/0439/4024/9755/files/jaxujerajuweguderamutik.pdf
    • https://cdn.shopify.com/s/files/1/0427/8750/4294/files/baby_boy_names_starting_with_a_in_tamil.pdf
    • https://cdn.shopify.com/s/files/1/0437/4996/5978/files/46707565491.pdf
    • https://cdn.shopify.com/s/files/1/0429/9581/0455/files/tecnologias_de_la_informacion_carrera_ecuador.pdf
    • https://cdn.shopify.com/s/files/1/0429/9050/2051/files/22147531638.pdf
    • https://cdn.shopify.com/s/files/1/0430/9932/4580/files/32235168551.pdf
    • https://cdn.shopify.com/s/files/1/0430/5725/0455/files/bapitajupeliwarokurujodo.pdf
    • https://cdn.shopify.com/s/files/1/0434/0989/9670/files/62855603157.pdf
    • https://cdn.shopify.com/s/files/1/0431/3592/6434/files/juzob.pdf
    • https://cdn.shopify.com/s/files/1/0435/5116/2517/files/effective_technical_communication_download.pdf
    • https://cdn.shopify.com/s/files/1/0434/6803/0102/files/definition_cahier_de_charge.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/rofan.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_off00004a36.bin
0f3f5f244bd9397226786c3be4297fc140da05997597ba54b9c67f3bad6857b7
pdf-font-stream PDF embedded font (sfnt) at offset 0x4A36 5132 bytes
font_01_sfnt_off00005b9a.bin
7dc7a00e92b16d214a85f0930908e0278be257302de30573f17682f644721ab9
pdf-font-stream PDF embedded font (sfnt) at offset 0x5B9A 10520 bytes