Malicious PDF — malware analysis report

Static analysis result for SHA-256 d388b792c668eb38…

MALICIOUS

PDF

61.5 KB Created: 2020-08-18 15:47:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4662b0b14794af13ca245bc99b70f9fc SHA-1: 79d11deebcfc83a794d13303ef639e54c0f0b2a1 SHA-256: d388b792c668eb3844d80becac03d049643dc979b48e5a8f5dac093232605d0a
120 Risk Score

Malware Insights

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

The PDF file contains a malicious redirector link pointing to 'ttraff.com', which is associated with malicious activity. The document body, though partially corrupted, contains text related to 'PMP certification questions and answers 2018' and the malicious URL, suggesting a lure. The file also contains a large number of external PDF links, many hosted on Shopify, indicating a potential SEO link farm used for distribution or traffic redirection.

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=pmp+certification+questions+and+answers+2018
    • http://files.hebsolutions.org/uploads/1/3/2/6/132683224/1330345.pdf
    • http://files.badappleorchard.net/uploads/1/3/1/4/131454766/70857d5943e4d.pdf
    • http://files.sunlifedogs.com/uploads/1/3/1/4/131406434/dasuratakaj.pdf
    • http://miborimu.homesteadnigerians.com/uploads/1/3/1/4/131437792/e60aef.pdf
    • http://files.cherylmoskalukart.com/uploads/1/3/1/4/131437593/779ae69e4.pdf
    • https://cdn.shopify.com/s/files/1/0431/4988/5606/files/wunafomizazezojijos.pdf
    • https://cdn.shopify.com/s/files/1/0431/8153/9489/files/mathematical_modeling_models_analysis_and_applications.pdf
    • https://cdn.shopify.com/s/files/1/0435/0243/6518/files/befoda.pdf
    • https://cdn.shopify.com/s/files/1/0433/8866/6005/files/zugevikixob.pdf
    • https://cdn.shopify.com/s/files/1/0433/9751/3381/files/81492416585.pdf
    • https://cdn.shopify.com/s/files/1/0428/5700/5215/files/schistosoma_mansoni_ciclo.pdf
    • https://cdn.shopify.com/s/files/1/0434/3883/3831/files/zonaviwinaxufadenagesijim.pdf
    • https://cdn.shopify.com/s/files/1/0427/6387/8566/files/73520532397.pdf
    • https://cdn.shopify.com/s/files/1/0448/9432/2855/files/6835392152.pdf
    • https://cdn.shopify.com/s/files/1/0434/5564/3809/files/dunalisizunalideginile.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_off0000a537.bin
ac1c0d28b0d440eb7e8332ce6d40edc1ccc9e8972dc8be039c8efb500e0cb91f
pdf-font-stream PDF embedded font (sfnt) at offset 0xA537 6008 bytes
font_01_sfnt_off0000b992.bin
872018799a247a45f2e1a44524747510961298d7e2597d8a0c61661932ecccc7
pdf-font-stream PDF embedded font (sfnt) at offset 0xB992 2188 bytes
font_02_sfnt_off0000c39a.bin
35af020d870c7c52c7fc3afb36dc17a9f75027cb9bed9017d77f2d727e9aded3
pdf-font-stream PDF embedded font (sfnt) at offset 0xC39A 10832 bytes