PDF malware analysis — malicious · d5ac9a1b7dc4f0db

MALICIOUS

PDF

43.4 KB Created: 2020-08-11 06:47:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: fe258f3a7d13eeaba48f4c98d5170404 SHA-1: ce3d824b1756238419ca58cf8059cedced7a3fbd SHA-256: d5ac9a1b7dc4f0dbbf7685aa542c49a03895df18ed5f2191cd1059c4ddbd8590

120 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a critical heuristic firing for a malicious redirector link, directing users to 'ttraff.cc'. The document body, though heavily obfuscated, contains references to the same URL and numerous other URLs hosted on various domains, many of which are suspicious. The presence of a link farm suggests an attempt to distribute malicious content or phish for information under the guise of providing a useful document.

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.cc/pify?keyword=accounting+principles+cheat+sheet+pdf
- http://gubabanus.deewhyhealth.com/uploads/1/3/1/4/131453870/b61dbe4eb.pdf
- http://files.saenz-lab.com/uploads/1/3/1/4/131483281/nizumigugakin.pdf
- http://putarazo.cdafun.com/uploads/1/3/1/4/131452958/9863326.pdf
- http://files.lordoflifelutheranrc.org/uploads/1/3/1/4/131407214/raved-wupenowobikex-fuwozivesaz-sasozefozegoval.pdf
- http://files.markspencercook.com/uploads/1/3/1/6/131606125/bowikedelijiban.pdf
- https://cdn.shopify.com/s/files/1/0434/5970/7037/files/gibejixozuraviza.pdf
- https://cdn.shopify.com/s/files/1/0430/3798/2869/files/zapabulusurogiroged.pdf
- https://cdn.shopify.com/s/files/1/0431/4493/7628/files/13783646805.pdf
- https://cdn.shopify.com/s/files/1/0431/8245/6981/files/vanessa_carlton_white_house.pdf
- https://cdn.shopify.com/s/files/1/0431/9520/3745/files/rilafuwol.pdf
- https://cdn.shopify.com/s/files/1/0434/0393/5911/files/najafafub.pdf
- https://cdn.shopify.com/s/files/1/0437/5946/8701/files/sekiwow.pdf
- https://cdn.shopify.com/s/files/1/0436/5592/1822/files/jurnal_endometriosis.pdf
- https://cdn.shopify.com/s/files/1/0429/4616/6943/files/86601256489.pdf
- https://cdn.shopify.com/s/files/1/0432/7243/7913/files/15062326083.pdf
- https://cdn.shopify.com/s/files/1/0438/9847/0552/files/93658608871.pdf
- https://cdn.shopify.com/s/files/1/0430/7235/6509/files/beragoga.pdf
- https://cdn.shopify.com/s/files/1/0428/4379/9719/files/operational_problems_in_activated_sludge_process.pdf
- https://cdn.shopify.com/s/files/1/0429/2391/7478/files/32734461522.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_off00006c0e.bin` `10655ca6204d391d3306fbcabd09b4846d6239605d1f7fdb8cd5072fbf978ed5`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6C0E	5408 bytes
`font_01_sfnt_off00007e66.bin` `79b92f33e8fb1fbfbf6875993b5f506646ab6a5f6d50e87beed234cfa08db4b5`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7E66	10004 bytes

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