Malicious PDF — malware analysis report

Static analysis result for SHA-256 c56959fd7ec7b219…

MALICIOUS

PDF

49.4 KB Created: 2020-08-09 07:25:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 57cdb0b239198387d140f885efc1124f SHA-1: 2b43bfbcb3ba246c2515e7737e47a3075503817e SHA-256: c56959fd7ec7b219fff1bf19276aab21e57d01865ae2f90e6b6f4d2ef082ffdd
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF file contains a lure related to a Schengen visa application, which is a common social engineering tactic. It embeds a link that redirects to a known malicious domain, ttraff.com, as indicated by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The PDF also contains a large number of external links, suggesting a link farm or SEO poisoning attempt, as flagged by PDF_SEO_LINK_FARM. No scripts were extracted, and the document body is heavily obfuscated, but the primary malicious intent appears to be directing users to malicious infrastructure via the embedded link.

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=application+for+schengen+visa+greece+pdf
    • http://files.metiworld2020.org/uploads/1/3/1/8/131871859/memiwodubosukeg-nekel-taderebux.pdf
    • http://files.janetdowsarchitect.com/uploads/1/3/0/9/130968988/kurefuguwibidadit.pdf
    • http://files.triowestboro.com/uploads/1/3/0/8/130874122/4f45e5c4e8c8f22.pdf
    • http://jopitu.presbycast.com/uploads/1/3/2/7/132741555/8957185.pdf
    • http://files.alphaandomegachurchdirectory.com/uploads/1/3/1/3/131398006/3658927.pdf
    • https://cdn.shopify.com/s/files/1/0434/3444/2908/files/principles_of_naval_architecture_vol_2.pdf
    • https://cdn.shopify.com/s/files/1/0429/0999/1075/files/faxoner.pdf
    • https://cdn.shopify.com/s/files/1/0432/5684/0350/files/37906021100.pdf
    • https://cdn.shopify.com/s/files/1/0431/5276/9192/files/openssl_create_ca_cert.pdf
    • https://cdn.shopify.com/s/files/1/0429/9436/8663/files/74537393675.pdf
    • https://cdn.shopify.com/s/files/1/0433/3636/8296/files/tarawolamudalevada.pdf
    • https://cdn.shopify.com/s/files/1/0440/3170/5238/files/69346328630.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/16946396068.pdf
    • https://cdn.shopify.com/s/files/1/0431/5358/8390/files/tukapukizeg.pdf
    • https://cdn.shopify.com/s/files/1/0430/7435/5351/files/zerawozurusujilevize.pdf
    • https://cdn.shopify.com/s/files/1/0430/2045/1997/files/71846246131.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005b60.bin
bb92f50913427f3fb8a5e187484a1f0029138bd15cb44b0ec61dd57528e9dc1f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5B60 5252 bytes
font_01_sfnt_off00006d34.bin
9f560813b105bbac3bafafdcc568fd10fb13c0c167a22e1626f30ea6dab1d0d1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6D34 10000 bytes
font_02_sfnt_off00008f94.bin
dd433496f27b49e18f120ce4ef697be6397e08947cd4a9edbb2a4415ee29ce81		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8F94 17632 bytes
font_03_sfnt_off0000a9cf.bin
1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA9CF 4324 bytes

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