PDF malware analysis — malicious · 4b4a949b12bb3101

MALICIOUS

PDF

46.1 KB Created: 2020-07-22 11:41:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 74b50936599b2a7a243e1d06a97d9d1f SHA-1: ede2c4dcdd592c64247234d5f9219eaff84ccca1 SHA-256: 4b4a949b12bb310172d1d6fb106db764d816966e12062affbec166b05dbcd4a3

120 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of embedded links, identified as a PDF link farm. One of these links, 'https://ttraff.ru/wb?keyword=fichas%20de%20figuras%20geometricas%20para%20imprimir%20pdf', is flagged as malicious. The document body, though heavily obfuscated, suggests a lure related to printable geometric shapes, likely intended to deceive users into clicking the malicious links.

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/wb?keyword=fichas%20de%20figuras%20geometricas%20para%20imprimir%20pdf
- http://files.mckenzieareadayhomes.com/uploads/1/3/1/3/131397940/girizud.pdf
- http://files.miaburundi.com/uploads/1/3/1/8/131871816/tezenosimipiwabuxow.pdf
- http://files.4joyjewels.com/uploads/1/3/0/7/130776040/4966e00d4f4f.pdf
- http://files.moonfulmama.com/uploads/1/3/1/6/131606677/1546056.pdf
- http://files.sarahavalia.com/uploads/1/3/0/7/130776183/xesebexeladonej_gowidebugogumes_benazal.pdf
- http://files.sarahavalia.com/uploa
- https://cdn.shopify.com/s/files/1/0432/0267/4845/files/58252315032.pdf
- https://cdn.shopify.com/s/files/1/0427/7462/6470/files/jafapamijogasijegavixaba.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/8007882555.pdf
- https://tusolesi.files.wordpress.com/2020/06/48767803607.pdf
- https://wazejiwifo.files.wordpress.com/2020/07/43093422321.pdf
- https://kedewemu291756887.files.wordpress.com/2020/06/2118190984.pdf
- https://nitapid.files.wordpress.com/2020/07/1691888698.pdf
- https://cdn.shopify.com/s/files/1/0432/4743/5940/files/jigijirivirujigana.pdf
- https://cdn.shopify.com/s/files/1/0427/7341/4055/files/55998948323.pdf
- https://cdn.shopify.com/s/files/1/0431/5276/9192/files/repipo.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/23158701460.pdf
- https://cdn.shopify.com/s/files/1/0433/3407/4523/files/gefemojebirololabe.pdf
- https://cdn.shopify.com/s/files/1/0429/9322/1783/files/8152297183.pdf
- https://cdn.shopify.com/s/files/1/0433/8001/5271/files/67323606047.pdf
- https://cdn.shopify.com/s/files/1/0434/2949/4936/files/71641054006.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_off000073cb.bin` `bb279ede04f9a86bf625c6cdd9fbd54616220eab9fa9c9a80cf07ba3f365e5b1`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x73CB	5268 bytes
`font_01_sfnt_off000085b4.bin` `bd5a96bc5b1ce8f6785e3ee9112e5190d4d7df2c73397fcdb00296afb0c87f92`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x85B4	10764 bytes

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