PDF malware analysis — malicious · cdbd151cf7a731e4

MALICIOUS

PDF

115.3 KB Created: 2020-08-11 21:12:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 43a52f1c44f0b0fa15c3a24dd00e5764 SHA-1: 3d34621c06065ec46e4e3651debf79296a9477c2 SHA-256: cdbd151cf7a731e4aef1cff02d176a5e7e43233f1e6e63521077ca8c06f071f8

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, many pointing to Shopify domains, but one critical link directs to a known malicious redirector at 'ttraff.ru'. The document body, though partially corrupted, suggests a lure related to educational strategies, likely to trick users into clicking the malicious link. The presence of a malicious redirector indicates an attempt to deliver further malicious content or conduct phishing.

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=estrategias+de+ense%25C3%25B1anza+aprendizaje+julio+pimienta+pdf
- http://files.kokopelliconnects.com/uploads/1/3/2/6/132695571/f5f61019b.pdf
- http://files.madisoncworld.org/uploads/1/3/1/4/131437330/d16dec229e0.pdf
- http://files.samanthasprings.com/uploads/1/3/1/4/131438629/fojimividunu_baputato_vunozutakilem.pdf
- http://pewadiwow.thesenseofplace.com/uploads/1/3/2/7/132740328/f94868.pdf
- http://files.foodstartuphelp.com/uploads/1/3/2/7/132710743/tojelu.pdf
- https://cdn.shopify.com/s/files/1/0430/5482/5621/files/peperawukufuguviwiva.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/wunize.pdf
- https://cdn.shopify.com/s/files/1/0431/2930/7293/files/somidasekawobafedaz.pdf
- https://cdn.shopify.com/s/files/1/0430/0944/1953/files/15231937623.pdf
- https://cdn.shopify.com/s/files/1/0430/9506/4733/files/ditimifuxuxidowu.pdf
- https://cdn.shopify.com/s/files/1/0429/7755/8681/files/jepugubaje.pdf
- https://cdn.shopify.com/s/files/1/0452/0555/3303/files/ranovowigerudokam.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/zukukujumifuxutage.pdf
- https://cdn.shopify.com/s/files/1/0437/6051/7271/files/bollinger_bands_trading_strategies_that_work.pdf
- https://cdn.shopify.com/s/files/1/0429/6772/8279/files/xokavekixilive.pdf
- https://cdn.shopify.com/s/files/1/0429/6219/0499/files/learn_bodo_language.pdf
- https://cdn.shopify.com/s/files/1/0428/0962/2691/files/poranurumolusaruzijenoro.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_off0001817c.bin` `ab4a6d9b09c8d59250a1efe75d98c05a6aa171a6819cf0ae5d5f0bc0a5b66a40`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x1817C	5656 bytes
`font_01_sfnt_off00019471.bin` `01ec683fc786f2f892d481f7b536ecded7e94cec32c4372f57fad1242a9cc36e`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x19471	12544 bytes

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