Malicious PDF — malware analysis report

Static analysis result for SHA-256 8ea3706d5c02410a…

MALICIOUS

PDF

60.7 KB Created: 2020-08-19 23:02:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 524e42394f41e5bbfa1a83f377bdab55 SHA-1: 59b40112a8bd528134216fc73b9affc726817622 SHA-256: 8ea3706d5c02410ad0e3a8efb89af2ca9f6c10616fc42d0827cb9ce6a29136db
120 Risk Score

Malware Insights

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

The PDF contains a link that redirects to a known malicious domain, ttraff.com. The document body, though heavily obfuscated, contains text related to 'Cisco jabber for windows planning guide' and the malicious URL, suggesting a phishing or social engineering lure. The PDF also contains a large number of external links, indicating a link farm strategy.

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=cisco+jabber+for+windows+planning+guide
    • http://nibeteb.longlivethedogs.com/uploads/1/3/2/6/132681670/1057891.pdf
    • http://files.connecttofans.net/uploads/1/3/0/8/130873917/b87a897.pdf
    • http://files.hwmusic.org/uploads/1/3/2/6/132696174/4935375.pdf
    • https://cdn.shopify.com/s/files/1/0431/4942/6845/files/copy_sqlite_database_from_android_to_pc.pdf
    • https://cdn.shopify.com/s/files/1/0437/9967/5041/files/33442568606.pdf
    • https://cdn.shopify.com/s/files/1/0437/6916/8021/files/pudefidudapar.pdf
    • https://cdn.shopify.com/s/files/1/0431/8255/5297/files/29477104543.pdf
    • https://cdn.shopify.com/s/files/1/0433/1424/9886/files/application_of_automata_theory_in_computer_science.pdf
    • https://cdn.shopify.com/s/files/1/0433/9829/9813/files/how_to_get_bing_maps_on_android.pdf
    • https://cdn.shopify.com/s/files/1/0431/2799/6565/files/wapavorojezajesafive.pdf
    • https://cdn.shopify.com/s/files/1/0434/8814/9668/files/50922052950.pdf
    • https://cdn.shopify.com/s/files/1/0440/1247/0422/files/liposodomomawalomib.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/wanojexabe.pdf
    • https://cdn.shopify.com/s/files/1/0438/4836/8288/files/agents_of_colonisation_in_zimbabwe.pdf
    • https://cdn.shopify.com/s/files/1/0437/9040/1687/files/nuwawidive.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_off0000ad32.bin
4c463ba3ed4108dbf680eef4fa9bb6e1572465b225ef07ca8893a2c5f402bc4b		 pdf-font-stream PDF embedded font (sfnt) at offset 0xAD32 5536 bytes
font_01_sfnt_off0000c024.bin
0796c7fb3e88f0f086aeff1e0700d766c0887317ae8eb81040879723ae1c4cbb		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC024 11000 bytes

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