PDF malware analysis — malicious · ee2115da44b41027

MALICIOUS

PDF

53.6 KB Created: 2020-08-23 04:22:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: b6783a0a912495ce344bcca29a97c4a4 SHA-1: dd4d6bc66d708107ef85f603f544fe28dcf8e403 SHA-256: ee2115da44b41027868fcb41451551d5838e3055cf1efd84de6354cac52ad971

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a large number of embedded links, many of which point to a link farm hosted on cdn.shopify.com. One of the embedded URLs, https://ttraff.ru/pify?keyword=aphria+earnings+report+predictions, is flagged as a malicious redirector. The document body, though heavily obfuscated, contains a reference to 'Aphria earnings report predictions', suggesting a lure to entice users to click the malicious link. 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.ru/pify?keyword=aphria+earnings+report+predictions
- http://files.mrquerino.com/uploads/1/3/2/6/132681452/puviwafexuwa_gakevabewobag_pitimajugokaror.pdf
- http://rovujo.mysje.org/uploads/1/3/2/7/132740267/biguwokep.pdf
- http://dolob.mytangledstories.com/uploads/1/3/1/4/131483453/kosokux-jejug-kagutejafi-memejaledisadu.pdf
- http://zobixug.abonart.net/uploads/1/3/0/9/130969744/kuvepe-bimuto-kobofud.pdf
- http://dituga.rougaroucollective.com/uploads/1/3/1/4/131453674/fozilijafubevazulu.pdf
- https://cdn.shopify.com/s/files/1/0431/7403/5607/files/faxeragezizuparodajupi.pdf
- https://cdn.shopify.com/s/files/1/0431/1718/3130/files/adobe_illustrator_cs6_size.pdf
- https://cdn.shopify.com/s/files/1/0435/9382/6463/files/57378239526.pdf
- https://cdn.shopify.com/s/files/1/0431/3199/4280/files/judakusam.pdf
- https://cdn.shopify.com/s/files/1/0432/5061/4429/files/87087905099.pdf
- https://cdn.shopify.com/s/files/1/0433/7513/2824/files/93518869083.pdf
- https://cdn.shopify.com/s/files/1/0437/4410/0506/files/lisogetujanogo.pdf
- https://cdn.shopify.com/s/files/1/0432/7833/6165/files/93665170866.pdf
- https://cdn.shopify.com/s/files/1/0431/7206/9525/files/wamurenuturuw.pdf
- https://cdn.shopify.com/s/files/1/0431/5758/6071/files/gigezizodel.pdf
- https://cdn.shopify.com/s/files/1/0431/6338/6016/files/lonitizupuf.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_off000089d1.bin` `cc2414da7d9c010087074998da2f45fbb14ddf6be19361c4390ec634fb6f2c13`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x89D1	5292 bytes
`font_01_sfnt_off00009bbd.bin` `97dad7fc4c8d269dd2591fdaa57211f1b0a9c5d51bd290c0b5a9002dae53d93f`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x9BBD	14212 bytes

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