Malicious PDF — malware analysis report

Static analysis result for SHA-256 96c6bc627561d777…

MALICIOUS

PDF

50.3 KB Created: 2020-08-09 18:41:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6c88ae56ed726440437a744d28a25182 SHA-1: c47af8cb85d01790cdf4d6adad1d43a233f6477d SHA-256: 96c6bc627561d7775c85b9521635934a8213e93e7200cf0ec543c736fd87f3de
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to external PDF files hosted on various domains, including a redirector. The primary malicious link identified is https://ttraff.ru/pify?keyword=concept+of+break+even+point+pdf, which is a known malicious redirector. This suggests the document is designed to lead users to malicious sites through a link farm, likely for SEO poisoning or phishing purposes.

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.ru/pify?keyword=concept+of+break+even+point+pdf
    • http://files.carmenkhan.com/uploads/1/3/0/7/130775866/5650367.pdf
    • http://files.laurendobee.com/uploads/1/3/1/4/131409305/b8d03.pdf
    • http://files.rosiebrowncreations.com/uploads/1/3/2/6/132681969/goxuseji.pdf
    • http://files.prehistorictreasurescy.com/uploads/1/3/0/7/130739379/wujupulime_farixi_fobuwovipesozov_bovujiratoruje.pdf
    • http://files.suekennedycelebrant.com/uploads/1/3/2/8/132815054/9610838.pdf
    • https://cdn.shopify.com/s/files/1/0433/3905/5253/files/nomago.pdf
    • https://cdn.shopify.com/s/files/1/0432/0156/0737/files/45541683738.pdf
    • https://cdn.shopify.com/s/files/1/0433/3050/2806/files/senoxek.pdf
    • https://cdn.shopify.com/s/files/1/0435/4015/2475/files/1212609495.pdf
    • https://cdn.shopify.com/s/files/1/0428/1040/9126/files/34641165095.pdf
    • https://cdn.shopify.com/s/files/1/0431/5955/2166/files/kufilip.pdf
    • https://cdn.shopify.com/s/files/1/0430/6989/8909/files/sadutaporusixisamapiru.pdf
    • https://cdn.shopify.com/s/files/1/0433/6009/2309/files/45136721752.pdf
    • https://cdn.shopify.com/s/files/1/0436/8780/5081/files/clep_calculus.pdf
    • https://cdn.shopify.com/s/files/1/0428/1293/2255/files/minecraft_gift_codes_2015.pdf
    • https://cdn.shopify.com/s/files/1/0438/2670/8640/files/holt_physics_textbook_download.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_off0000779a.bin
8872665774f26d1c64c6bc608e2f7d6eed132384f645a26dde74ad4996734ee3
pdf-font-stream PDF embedded font (sfnt) at offset 0x779A 5012 bytes
font_01_sfnt_off000088ae.bin
454749ef992c868b5782d012549ba2a7ec73ee0968082b13ef1667f0558f7441
pdf-font-stream PDF embedded font (sfnt) at offset 0x88AE 10836 bytes
font_02_sfnt_off0000adb8.bin
1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361
pdf-font-stream PDF embedded font (sfnt) at offset 0xADB8 4324 bytes