Malicious PDF — malware analysis report

Static analysis result for SHA-256 e7f9a64f3c8d8f9b…

MALICIOUS

PDF

49.5 KB Created: 2020-08-12 13:29:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: fe8285132c6e277e51effa9bf8bd4838 SHA-1: 326585156665618e1ca29e625f23edc43e876bfc SHA-256: e7f9a64f3c8d8f9b36e9d5d840531900d6e3bec10f35819123e19ce050a6c11b
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains numerous links, with a critical heuristic identifying a malicious redirector at 'https://ttraff.com/pify?keyword=mario+vargas+llosa+libros+pdf+gratis'. This suggests the document is designed to trick users into clicking the link, likely leading to a malicious download or phishing page. The document body and embedded links reinforce this lure by referencing free PDF downloads.

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.com/pify?keyword=mario+vargas+llosa+libros+pdf+gratis
    • http://juboteme.mountaintownplanners.org/uploads/1/3/1/0/131070872/abe3f8770.pdf
    • http://files.themousethatroared.net/uploads/1/3/1/6/131607232/5646355.pdf
    • http://gaxesex.alabamagirlsstate.org/uploads/1/3/1/3/131379730/wiwoweve_lurojowasiras_wowupudasen_vofewalupev.pdf
    • http://files.theborzoishop.com/uploads/1/3/1/1/131164355/mamuriwegun.pdf
    • http://files.kathyskreationsballoonart.com/uploads/1/3/2/6/132682441/8031f9e13f.pdf
    • https://cdn.shopify.com/s/files/1/0431/3507/4465/files/givifokikomu.pdf
    • https://cdn.shopify.com/s/files/1/0431/2226/2178/files/lekagolojejogenakadawumu.pdf
    • https://cdn.shopify.com/s/files/1/0440/7951/3752/files/870093336.pdf
    • https://cdn.shopify.com/s/files/1/0431/2986/4343/files/bhagavatam_book_in_telugu.pdf
    • https://cdn.shopify.com/s/files/1/0431/3874/4476/files/ncert_class_11_accountancy_notes.pdf
    • https://cdn.shopify.com/s/files/1/0433/1103/8632/files/xobisavofoxu.pdf
    • https://cdn.shopify.com/s/files/1/0431/1236/6229/files/kokosokulabebevitu.pdf
    • https://cdn.shopify.com/s/files/1/0429/2493/3283/files/masabizipozexuvefosaj.pdf
    • https://cdn.shopify.com/s/files/1/0433/0258/4480/files/33147537638.pdf
    • https://cdn.shopify.com/s/files/1/0428/2518/7491/files/thinking_in_java_5th_edition_free.pdf
    • https://cdn.shopify.com/s/files/1/0434/1828/8285/files/xobasuvisukijikovobepexi.pdf
    • https://cdn.shopify.com/s/files/1/0434/6318/0438/files/arquitectura_de_computadoras_patricia_quiroga_gratis.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007392.bin
85dd214e6c83093778addd7153f77c173d1f1f6abf7820c8cff2aa4446fa8bf6
pdf-font-stream PDF embedded font (sfnt) at offset 0x7392 4980 bytes
font_01_sfnt_off00008492.bin
a89b5337d20c4b119a2bf0d22b2af1d2c446f1da6ff7e4a8b5f1ac45c144f4b3
pdf-font-stream PDF embedded font (sfnt) at offset 0x8492 11700 bytes
font_02_sfnt_off0000aaea.bin
7f6049e5011acf0e8581793f2bc2bb947aac2929fdb77abc318b2a6155c1ef71
pdf-font-stream PDF embedded font (sfnt) at offset 0xAAEA 4324 bytes