Malicious PDF — malware analysis report

Static analysis result for SHA-256 f5f3dfbd871e6cf4…

MALICIOUS

PDF

42.3 KB Created: 2020-08-14 17:27:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 54b6a15c87168570d749407ac223ec4f SHA-1: d7646e525e5beccb1775a5fc50f2c008bcdf91b7 SHA-256: f5f3dfbd871e6cf48b085164a139a4b817001d25f3523161b7809be521e11dd5
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 the 'ttraff.com' domain, identified as a malicious redirector. The document body, though heavily obfuscated, contains the string 'Cdac full form in computer' and a URL that matches the malicious redirector. This suggests a phishing or scam attempt designed to drive traffic to malicious sites.

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=cdac+full+form+in+computer
    • http://namori.shoprubymae.com/uploads/1/3/0/8/130874493/pafamorip.pdf
    • http://jaluseg.heatherconine.com/uploads/1/3/1/4/131438405/tivupomokakumidupo.pdf
    • https://cdn.shopify.com/s/files/1/0440/0077/2246/files/hey_there_delilah_piano.pdf
    • https://cdn.shopify.com/s/files/1/0434/8005/5965/files/athenaise_kate_chopin.pdf
    • https://cdn.shopify.com/s/files/1/0435/6793/9743/files/30496903574.pdf
    • https://cdn.shopify.com/s/files/1/0433/0432/1177/files/gutigefuxoxu.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/28821374719.pdf
    • https://cdn.shopify.com/s/files/1/0432/0142/9662/files/284940265.pdf
    • https://cdn.shopify.com/s/files/1/0446/2352/8099/files/37196774972.pdf
    • https://cdn.shopify.com/s/files/1/0430/5190/9274/files/14289590237.pdf
    • https://cdn.shopify.com/s/files/1/0429/0979/4463/files/12088664449.pdf
    • https://cdn.shopify.com/s/files/1/0431/9654/7230/files/java_aes_encryption_example.pdf
    • https://cdn.shopify.com/s/files/1/0433/1814/9285/files/29267228161.pdf
    • https://cdn.shopify.com/s/files/1/0438/2215/3890/files/gimifulusezonaxejuworulo.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_off00005b36.bin
9f401616cb9564218066650456b372ff5113c8b46c50f24ecd71ffd6ef309e11		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5B36 5028 bytes
font_01_sfnt_off00006c36.bin
2563ce64504c2fef507cbfba2358407d1d12968540848b42ad2d35723c069a94		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6C36 10028 bytes
font_02_sfnt_off00008e80.bin
b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8E80 4324 bytes

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