Malicious PDF — malware analysis report

Static analysis result for SHA-256 bbecbef063d4b273…

MALICIOUS

PDF

71.0 KB Created: 2020-08-21 01:26:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ce7b7101d6b5f4cff6b75d66c717fb91 SHA-1: 8459b126518dc08b029fd06cd8ce9f4c07395002 SHA-256: bbecbef063d4b273d4c91ed6b4c7a2cb3504a07cc0303bc2dd18a683f26ca2d4
140 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 User Execution: Malicious Link T1059.001 PowerShell

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.ru'. Additionally, it features a link farm heuristic, indicating a large number of outbound links, many hosted on Shopify. The document body, though heavily obfuscated, contains the same redirector URL. This suggests the primary goal is to redirect the user to malicious content, likely for phishing or malware delivery.

Heuristics 4

  • 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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns
  • 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=b.+ed+reappear+form+mdu+2018
    • http://files.nhaohpad.org/uploads/1/3/1/4/131437515/fazewapa-zifafajanub-jasesudikesup.pdf
    • http://files.rhmorriesonawards.com/uploads/1/3/1/4/131453850/lurapodaxupu-xisumem-liborumede.pdf
    • http://files.captainzohar.com/uploads/1/3/2/3/132303226/pegako.pdf
    • http://files.rivertradejunction.com/uploads/1/3/0/7/130739621/8566435.pdf
    • http://files.rkplasticsurgery.com/uploads/1/3/0/7/130775819/032279bfa04dd.pdf
    • https://cdn.shopify.com/s/files/1/0428/9599/9129/files/subefumudijasakamulofom.pdf
    • https://cdn.shopify.com/s/files/1/0433/9816/8727/files/kalodozaxoxolobapino.pdf
    • https://cdn.shopify.com/s/files/1/0431/7754/1792/files/wofezapigowiruvuwe.pdf
    • https://cdn.shopify.com/s/files/1/0427/7056/3239/files/60785284538.pdf
    • https://cdn.shopify.com/s/files/1/0435/9726/7112/files/dofewebuwijalifoxupotaxof.pdf
    • https://cdn.shopify.com/s/files/1/0431/8085/1364/files/36027824677.pdf
    • https://cdn.shopify.com/s/files/1/0432/7335/5424/files/all_emojis_copy_paste.pdf
    • https://cdn.shopify.com/s/files/1/0437/7922/7810/files/zarevirosomalazowidupido.pdf
    • https://cdn.shopify.com/s/files/1/0430/6301/7629/files/cv_administrateur_systeme_d_information.pdf
    • https://cdn.shopify.com/s/files/1/0433/4462/5822/files/nonobudafejekomagenuzuvul.pdf
    • https://cdn.shopify.com/s/files/1/0431/9975/8498/files/and_but_so_worksheet.pdf
    • https://cdn.shopify.com/s/files/1/0433/1339/7924/files/menurogerofiduba.pdf
    • https://cdn.shopify.com/s/files/1/0447/3890/4220/files/boma_1996_spreadsheet.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_off0000bea6.bin
53de4225f334e8a161efce8b92f6029ea3a161063f31688a5244e754b0119041		 pdf-font-stream PDF embedded font (sfnt) at offset 0xBEA6 5224 bytes
font_01_sfnt_off0000d06e.bin
745ac31a16b708dab2073373ec309ceb3b685576dbc3772fb4bf1e7061ecf24f		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD06E 15568 bytes
font_02_sfnt_off00010089.bin
a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10089 4324 bytes

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