Malicious PDF — malware analysis report

Static analysis result for SHA-256 56fffec70a850260…

MALICIOUS

PDF

61.2 KB Created: 2020-08-04 02:20:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5423d5e7def6f5609fee4eba110107ca SHA-1: 3bf2b34070eca74a9c346becb5f176e9f9c1b9e5 SHA-256: 56fffec70a850260c6a6f3a6e5272c80e654f5ae880ec1f181931ac333b9d5b1
120 Risk Score

Malware Insights

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

The PDF contains a deceptive document body referencing a 'Caesarean section procedure pdf' and includes numerous embedded links. One critical heuristic firing indicates a malicious redirector link to 'ttraff.com', which is likely the primary mechanism for delivering a subsequent payload. The document body also contains obfuscated text and embedded URLs, further supporting the malicious intent.

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=caesarean+section+procedure+pdf
    • http://files.youcannotunsee.com/uploads/1/3/0/7/130775979/zifop.pdf
    • http://files.wilkespe.com/uploads/1/3/1/3/131379320/zevozogapek_dizuj_sosovuvel_sapebinepedew.pdf
    • http://files.creativeaginginnyack.org/uploads/1/3/1/3/131379700/kuvot.pdf
    • https://cdn.shopify.com/s/files/1/0435/5679/8627/files/99879825239.pdf
    • https://cdn.shopify.com/s/files/1/0429/8833/9354/files/68260261538.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/vunazazaxukatokezidabu.pdf
    • https://cdn.shopify.com/s/files/1/0431/0587/8167/files/88689749148.pdf
    • https://cdn.shopify.com/s/files/1/0433/9249/9877/files/22602957462.pdf
    • https://cdn.shopify.com/s/files/1/0432/8990/3259/files/refipenudofepidadi.pdf
    • https://cdn.shopify.com/s/files/1/0429/0461/7119/files/97187482088.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/tovaje.pdf
    • https://cdn.shopify.com/s/files/1/0429/7919/7081/files/tomilopedubagositotisek.pdf
    • https://cdn.shopify.com/s/files/1/0431/0358/4423/files/34076402299.pdf
    • https://cdn.shopify.com/s/files/1/0430/7373/2768/files/61598613372.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_off0000a636.bin
7f98153859c3585b80fbf66d4ce8d965bf7e4de8b1b3b678cbaf72c505593720		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA636 5024 bytes
font_01_sfnt_off0000b757.bin
c712484a538c71706eb2a56cad50d7681a04758ebabdd0f13aa287aec73e7908		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB757 10056 bytes
font_02_sfnt_off0000d995.bin
05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD995 4324 bytes

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