Malicious PDF — malware analysis report

Static analysis result for SHA-256 9ea705a12e09a389…

MALICIOUS

PDF

37.4 KB Created: 2020-08-31 06:05:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 075cf5bce2337e8f2e916d67488c0934 SHA-1: 7064b9c76c85e9eb1c1db50f532c8e38434b5ebb SHA-256: 9ea705a12e09a389f46ee7ea95f5e6b6cc59790a83870c340a325973d2b0786c
150 Risk Score

Malware Insights

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

The PDF contains a mass of external links, including one pointing to a known malicious redirector at 'https://ttraff.me/wix?keyword=ibico+laminator+el+12+manual'. The document body appears to be obfuscated or corrupted, but the presence of numerous links, many hosted on Shopify, suggests a link farm or SEO poisoning tactic to drive traffic to malicious sites. The ML classifier also strongly indicated maliciousness.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.me/wix?keyword=ibico+laminator+el+12+manual
    • https://cdn.shopify.com/s/files/1/0429/1877/2903/files/62933377005.pdf
    • https://cdn.shopify.com/s/files/1/0433/7090/5754/files/63078740301.pdf
    • https://cdn.shopify.com/s/files/1/0433/3695/8106/files/kuvezaporulige.pdf
    • https://cdn.shopify.com/s/files/1/0432/3095/3627/files/14549288966.pdf
    • https://cdn.shopify.com/s/files/1/0431/6053/5196/files/lenigiwinupizavezal.pdf
    • https://cdn.shopify.com/s/files/1/0438/0947/2669/files/duzojoxofirulinofala.pdf
    • https://cdn.shopify.com/s/files/1/0437/9744/6816/files/tax_amnesty_act_2020.pdf
    • https://cdn.shopify.com/s/files/1/0438/4620/5602/files/firovugitipalaxigura.pdf
    • https://cdn.shopify.com/s/files/1/0433/9807/0426/files/42278952435.pdf
    • https://cdn.shopify.com/s/files/1/0440/9550/4536/files/.pdf
    • https://cdn.shopify.com/s/files/1/0430/6989/8913/files/zitasitif.pdf
    • https://cdn.shopify.com/s/files/1/0428/6713/0534/files/xetapima.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_off0000460a.bin
9c0ea61a68fede4bf06d061ff6ce79c5c08d7a12a43d28aa4a995672c4b3e18f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x460A 4908 bytes
font_01_sfnt_off0000569c.bin
a921911b750c5da853ec4907a2888c9e8623860f4ed38801f992ffe6da8dc149		 pdf-font-stream PDF embedded font (sfnt) at offset 0x569C 10580 bytes
font_02_sfnt_off00007adf.bin
05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7ADF 4324 bytes

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