Malicious PDF — malware analysis report

Static analysis result for SHA-256 94d8ccda0940bdd1…

MALICIOUS

PDF

39.1 KB Created: 2020-08-06 09:53:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 2356a0b416d11b45b7976a50e33dbba4 SHA-1: 1511f4978be7643f701439629cebf5725848366c SHA-256: 94d8ccda0940bdd14abc1b4a3c089174a60826fafbc931d67a3ca75be89ab549
130 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with one identified as a malicious redirector pointing to 'https://ttraff.com/pify?keyword=cardioversion+medicamentosa+pdf'. The document also exhibits characteristics of a link farm, suggesting an attempt to distribute malicious content. The heuristic 'SE_URGENCY_LURE' indicates the document likely uses time-sensitive language to prompt user interaction with the malicious links.

Heuristics 4

  • 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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=cardioversion+medicamentosa+pdf
    • http://files.strips.ie/uploads/1/3/1/3/131398386/9259378.pdf
    • http://files.ketolizcious.com/uploads/1/3/0/7/130775565/5ef36961.pdf
    • http://files.lakefieldvisioncare.com/uploads/1/3/1/1/131163559/8296e.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/88065476392.pdf
    • https://cdn.shopify.com/s/files/1/0427/4746/1788/files/83803220297.pdf
    • https://cdn.shopify.com/s/files/1/0436/0863/7602/files/64163640.pdf
    • https://cdn.shopify.com/s/files/1/0430/0649/2831/files/xilovobitititaxijudabedis.pdf
    • https://cdn.shopify.com/s/files/1/0432/3826/0903/files/97358663767.pdf
    • https://cdn.shopify.com/s/files/1/0440/7495/9000/files/67510763456.pdf
    • https://cdn.shopify.com/s/files/1/0427/5847/1846/files/51783650090.pdf
    • https://cdn.shopify.com/s/files/1/0427/7311/9143/files/44075178727.pdf
    • https://cdn.shopify.com/s/files/1/0430/1471/7597/files/kulofimegiz.pdf
    • https://cdn.shopify.com/s/files/1/0434/3929/2577/files/8322140123.pdf
    • https://cdn.shopify.com/s/files/1/0434/9027/9574/files/wadita.pdf
    • https://cdn.shopify.com/s/files/1/0429/3731/9590/files/57411285725.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_off00005c80.bin
39dcc4f9d986b5ce986dd594e1146ae01fdcd3e80275aa36af0c66cfdc637cde		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5C80 5236 bytes
font_01_sfnt_off00006e3e.bin
067babfa8c53b76ad3a12cce0079cb299514ee0529988fe80e03423e403c3185		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6E3E 9772 bytes

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