PDF malware analysis — malicious · 2d57795b4aae2b53

MALICIOUS

PDF

34.1 KB Created: 2020-08-15 03:50:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: b896f73cac54b1814a813e490b3d2864 SHA-1: a574d3efc84445da36a3d4fd92e3fc0eff6fc69f SHA-256: 2d57795b4aae2b53410738198cec41d7e0848a3fa4ad4c3be3fc8435ba817938

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a mass external link farm, with a critical heuristic firing for a malicious redirector. The primary malicious URL, 'https://ttraff.ru/pify?keyword=bomberman+land+touch+2+rom', is a clear indicator of malicious intent. The document body, though heavily obfuscated, contains this URL, suggesting it's the intended lure. The presence of numerous other PDF links hosted on various domains further supports the link farm heuristic.

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.ru/pify?keyword=bomberman+land+touch+2+rom
- http://pubetuno.mbricktestsite.com/uploads/1/3/0/7/130740019/mozezobibufifoza.pdf
- http://files.montrossvillage.org/uploads/1/3/0/9/130970008/4060518.pdf
- http://files.absolutelypaintedfaces.com/uploads/1/3/1/6/131606429/fizuneweponorif.pdf
- http://files.greenmaterials.lt/uploads/1/3/2/7/132712207/julujozugukufa.pdf
- http://files.sarahgancher.org/uploads/1/3/0/7/130776858/92f77e.pdf
- https://cdn.shopify.com/s/files/1/0435/8370/1155/files/xevusuv.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/gigogew.pdf
- https://cdn.shopify.com/s/files/1/0431/2127/9137/files/xorejefenitowegagot.pdf
- https://cdn.shopify.com/s/files/1/0438/8998/3640/files/32175335693.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/99237037604.pdf
- https://cdn.shopify.com/s/files/1/0429/8076/9951/files/76911291921.pdf
- https://cdn.shopify.com/s/files/1/0440/8157/8136/files/36237160650.pdf
- https://cdn.shopify.com/s/files/1/0431/7931/1253/files/78747894441.pdf
- https://cdn.shopify.com/s/files/1/0438/6213/0848/files/93810815326.pdf
- https://cdn.shopify.com/s/files/1/0438/4777/8469/files/22561360136.pdf
- https://cdn.shopify.com/s/files/1/0431/0538/6657/files/90072602432.pdf
- https://cdn.shopify.com/s/files/1/0436/4340/4441/files/39835120767.pdf
- https://cdn.shopify.com/s/files/1/0430/9244/3303/files/58523954516.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_off00004779.bin` `494817a9afa83c3844aa18bbef9847d4569586197151b5f776ed79b4ecc8de00`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x4779	5320 bytes
`font_01_sfnt_off00005957.bin` `602b31383d8d56c168a8f7bf40f1ebfa4e72b7bbdac84574976d7fd963a25c4b`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5957	10064 bytes

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