Malicious PDF — malware analysis report

Static analysis result for SHA-256 a69abc04feba109f…

MALICIOUS

PDF

51.1 KB Created: 2020-08-30 18:17:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6c95a2435e7d8d7cc078e1334f21e9ba SHA-1: a4ae293cf7a6ecf3a8c5fbc08c382291c2494a65 SHA-256: a69abc04feba109fc0f17560578cfbe94dcf888e9f60662dcecd94d8703afed6
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, which is also present in the document body. This link, 'https://ttraff.cc/wix?keyword=habibi+naomi+shihab+nye+summary', is the primary indicator of malicious intent, likely serving as a lure for phishing or malware delivery. The PDF also exhibits characteristics of a link farm, with numerous external links, many pointing to benign Shopify domains, but the presence of the malicious redirector is the most significant finding.

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/wix?keyword=habibi+naomi+shihab+nye+summary
    • https://cdn.shopify.com/s/files/1/0431/4277/4938/files/33071593601.pdf
    • https://cdn.shopify.com/s/files/1/0427/6856/4380/files/dunodot.pdf
    • https://cdn.shopify.com/s/files/1/0436/5287/4390/files/90659527439.pdf
    • https://cdn.shopify.com/s/files/1/0434/2104/0789/files/flywheel_energy_storage_system_design.pdf
    • https://static.usrfiles.com/ugd/ecec20_d373c61084aa4a7cba24f1089316c506.pdf
    • https://static.usrfiles.com/ugd/76156b_7e70581163694e788c4b5ea8a206ea42.pdf
    • https://cdn.shopify.com/s/files/1/0433/4590/3774/files/74140901407.pdf
    • https://cdn.shopify.com/s/files/1/0435/8258/7037/files/furosemide_pharmacokinetics.pdf
    • https://static.usrfiles.com/ugd/e2c6c1_d5a74bc592d54f3698aaef1ac8156e8e.pdf
    • https://static.usrfiles.com/ugd/a91264_16e64926aba1472da88e1ef37abd1587.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_off00007e43.bin
f93384f71d60725f7e277e6f52498b645559ea8a1345389572cc89059bd60b64		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7E43 4896 bytes
font_01_sfnt_off00008eae.bin
2b36c5e09fe8efba229f75ea8b74a8f436a35d00e119c4c2529657d5762362d4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8EAE 10308 bytes
font_02_sfnt_off0000b1e8.bin
7f6049e5011acf0e8581793f2bc2bb947aac2929fdb77abc318b2a6155c1ef71		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB1E8 4324 bytes

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