Malicious PDF — malware analysis report

Static analysis result for SHA-256 eb32a034fc93eac2…

MALICIOUS

PDF

46.8 KB Created: 2020-08-26 19:08:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8fe142b0d61ef1cfba9e397435baab0b SHA-1: 6cfe3c40211a3629abb0dc505ed7f696158ea541 SHA-256: eb32a034fc93eac27920c07d6ad4c48d6733bfea9e140f66b5356403e9aac179
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a mass of external links, including one pointing to a known malicious redirector infrastructure at `ttraff.cc`. The document body, though heavily obfuscated, contains text fragments suggesting a lure related to "Who wants to be a millionaire" and includes the malicious URL. This indicates an attempt to trick the user into clicking the link, likely for further malware distribution.

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=who+wants+to+be+a+millionaire+downlo
    • http://lulata.cowboysrest.org/uploads/1/3/1/8/131871674/vukagi_robupubo.pdf
    • https://cdn.shopify.com/s/files/1/0429/4829/6863/files/ladudekosisubofalotowiba.pdf
    • https://cdn.shopify.com/s/files/1/0427/5650/5756/files/givimetanojesiwa.pdf
    • https://cdn.shopify.com/s/files/1/0437/9816/7713/files/fixuwabalat.pdf
    • https://cdn.shopify.com/s/files/1/0429/7719/8229/files/52148185076.pdf
    • https://cdn.shopify.com/s/files/1/0435/6145/1681/files/que_es_un_spot_publicitario.pdf
    • https://cdn.shopify.com/s/files/1/0435/4025/0775/files/barbie_dream_house_mod_apk_hack.pdf
    • https://cdn.shopify.com/s/files/1/0433/4233/2057/files/adolphe_ferriere_biografia.pdf
    • https://cdn.shopify.com/s/files/1/0432/6372/1637/files/vuvozo.pdf
    • https://cdn.shopify.com/s/files/1/0434/1032/5671/files/13707045865.pdf
    • https://cdn.shopify.com/s/files/1/0438/0576/9888/files/5383417525.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_off00006aa0.bin
bc564917378ff51c8238c69eb12fc4e971f5c6cb9b1d00df076351e1a830526e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6AA0 5096 bytes
font_01_sfnt_off00007bcb.bin
cec86f35cddd85e466f3eb6ae6d5533fec7249933029d0ce47ed5fe467ba05ab		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7BCB 11064 bytes
font_02_sfnt_off0000a084.bin
a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA084 4324 bytes

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