Malicious PDF — malware analysis report

Static analysis result for SHA-256 4dbeac5e93aa974c…

MALICIOUS

PDF

96.4 KB Created: 2020-08-13 15:19:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 418421be444c029b2c726e733c34bf1c SHA-1: 8f3655e670c1d2014950d9e989f2156cc79fe717 SHA-256: 4dbeac5e93aa974c81221da4e49305a560ce4e6fa7ddca68908a31fd1664656d
120 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.com/pify?keyword=alter+ego+2+pdf+gratuit'. This URL is likely used to redirect users to a malicious site, potentially for phishing or malware distribution. The document body, though heavily obfuscated, also contains this URL, reinforcing its role in the attack. The presence of numerous external PDF links, many hosted on Shopify, suggests a link farm or SEO manipulation tactic to obscure the malicious redirector.

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=alter+ego+2+pdf+gratuit
    • http://files.goldenfoodbank.ca/uploads/1/3/2/6/132681863/1428521.pdf
    • http://files.canaanumc.com/uploads/1/3/1/8/131856247/1245025.pdf
    • http://files.jakecastrosoccer.com/uploads/1/3/0/7/130775707/nogenonari-lozugerev-midalup.pdf
    • http://files.mtzinsurance.com/uploads/1/3/1/3/131383384/b68ff563c58c344.pdf
    • http://jexiwa.konajoanna.com/uploads/1/3/1/4/131453674/6339169.pdf
    • https://cdn.shopify.com/s/files/1/0433/9705/4631/files/31609337786.pdf
    • https://cdn.shopify.com/s/files/1/0434/3939/0872/files/timex_indiglo_wr_30m_manual.pdf
    • https://cdn.shopify.com/s/files/1/0431/8052/3678/files/28710923948.pdf
    • https://cdn.shopify.com/s/files/1/0445/6205/5332/files/biografia_de_fray_bernardino_de_sahagun.pdf
    • https://cdn.shopify.com/s/files/1/0433/6209/1167/files/bass_guitar_jazz_scales.pdf
    • https://cdn.shopify.com/s/files/1/0436/4291/2926/files/uttar_kand_ramayan_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0432/7548/5339/files/3131711101.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/74535711799.pdf
    • https://cdn.shopify.com/s/files/1/0437/8542/0949/files/nuzulopev.pdf
    • https://cdn.shopify.com/s/files/1/0436/2698/7680/files/disney_jazz_piano_sheet_music.pdf
    • https://cdn.shopify.com/s/files/1/0429/8709/4177/files/kadoxuzaj.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_off00011c57.bin
674123306f80e4b52b9f2e3cba886a3880f3f01523a9253c810d078ad90e84d2
pdf-font-stream PDF embedded font (sfnt) at offset 0x11C57 5152 bytes
font_01_sfnt_off00012df3.bin
8016c7021d0e28f753bb4714e256013dc62438420b2eb8c1e4203c0408299cad
pdf-font-stream PDF embedded font (sfnt) at offset 0x12DF3 15968 bytes
font_02_sfnt_off00015ed6.bin
532315dfdc59b350d447ad91845dd8cc72a836e684f536ab9a4305dc5b53fb8e
pdf-font-stream PDF embedded font (sfnt) at offset 0x15ED6 16204 bytes