PDF malware analysis — malicious · bb7a455069f7e932

MALICIOUS

PDF

43.6 KB Created: 2020-08-10 10:48:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 018a9ee1b8be20362ddbb03799e82555 SHA-1: 33cd2d869c46c616905a8df048113f9e2a05cc0d SHA-256: bb7a455069f7e9324d9b9617c897222ee6f1ed47b8a2c65e8148a753425cf0f8

150 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 critical heuristic firing indicating a malicious redirector. The document body, though heavily obfuscated, contains text suggesting a lure related to a 'best self journal pdf'. The primary malicious IOC is the redirector URL, which is likely used to funnel victims to further malicious content. No scripts were extracted from this sample.

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.com/pify?keyword=best+self+journal+pdf
- http://files.thehistorianinthegarden.com/uploads/1/3/0/9/130969966/nedexo.pdf
- http://files.indipix.co.in/uploads/1/3/2/6/132681368/suzepemolaluzi_zomiguwop.pdf
- http://sitom.fredtoke.org/uploads/1/3/0/8/130814328/387776.pdf
- http://vuribopo.press1magazine.com/uploads/1/3/2/8/132814930/5699773.pdf
- http://files.gnomiesworld.com/uploads/1/3/1/3/131381066/756259.pdf
- https://cdn.shopify.com/s/files/1/0433/5511/1589/files/53987618249.pdf
- https://cdn.shopify.com/s/files/1/0440/0440/9494/files/anatomy_and_physiology_2_final_exam.pdf
- https://cdn.shopify.com/s/files/1/0433/6222/2232/files/jiwukigofexekibisazef.pdf
- https://cdn.shopify.com/s/files/1/0431/7318/3643/files/tutorial_hibernate_java.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/sakumuxapiwitisozu.pdf
- https://cdn.shopify.com/s/files/1/0431/5712/7336/files/way_of_the_cobalt_soul.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/lonub.pdf
- https://cdn.shopify.com/s/files/1/0430/8946/1410/files/69970922393.pdf
- https://cdn.shopify.com/s/files/1/0430/7927/0549/files/granblue_unite_and_fight.pdf
- https://cdn.shopify.com/s/files/1/0432/2387/5746/files/bobinage_transformateur.pdf
- https://cdn.shopify.com/s/files/1/0430/1760/1181/files/wobemun.pdf
- https://cdn.shopify.com/s/files/1/0429/9735/0554/files/kipufowuxipikej.pdf
- https://cdn.shopify.com/s/files/1/0437/5022/8119/files/67446461918.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.

Filename	Kind	Source	Size
`font_00_sfnt_off00006e10.bin` `7f5bbbf8c0cffc6dbc44e482bae4c8212b575af87bb7e5091c9432ca3bbcec41`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6E10	5160 bytes
`font_01_sfnt_off00007fb1.bin` `a10c5f00f2d160e2bd2c3a5b7ba77d16d8a470d05b09e36d55a11368c19fe75c`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7FB1	9900 bytes

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