Malicious PDF — malware analysis report

Static analysis result for SHA-256 b11c6f4775a5b400…

MALICIOUS

PDF

55.8 KB Created: 2020-08-28 08:27:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 21d5b3b8a0fba55118ae766da0727421 SHA-1: f8c287aa4e9b73687b14c540d4b7f50ae8ceaff5 SHA-256: b11c6f4775a5b400fa81a349378186cfcc9187074e7f733ae57052e5c068ab1e
142 Risk Score

Malware Insights

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

The PDF contains a link farm designed to improve search engine ranking, with a primary malicious redirector URL. The document body text, though heavily obfuscated, contains the URL 'https://ttraff.com/pify?keyword=alcatel+one+touch+software++for+pc', which is flagged as a malicious redirector. This suggests the document's purpose is to lure users to malicious sites, likely for phishing or malware delivery. No scripts were extracted from this sample.

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.com/pify?keyword=alcatel+one+touch+software++for+pc
    • http://files.hr-conference.org/uploads/1/3/1/3/131380889/dudaze_fodifef_xakomivuz.pdf
    • https://cdn.shopify.com/s/files/1/0447/2619/0234/files/work_order_template.pdf
    • https://cdn.shopify.com/s/files/1/0436/5749/4686/files/convert_to_black_and_white.pdf
    • https://cdn.shopify.com/s/files/1/0440/1581/2766/files/game_tekken_7_ppsspp_android.pdf
    • https://cdn.shopify.com/s/files/1/0431/5735/6710/files/18669410689.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/94323725826.pdf
    • https://cdn.shopify.com/s/files/1/0434/1386/4604/files/cisco_ccna_lab_workbook_200_120.pdf
    • https://cdn.shopify.com/s/files/1/0431/1734/6976/files/corrupted_mods_guide.pdf
    • https://cdn.shopify.com/s/files/1/0449/4472/0040/files/learn_body_parts_in_english.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/ginowojero.pdf
    • https://cdn.shopify.com/s/files/1/0427/9150/1990/files/watchmen_full_graphic_novel.pdf
    • https://cdn.shopify.com/s/files/1/0433/0697/5382/files/15088218339.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_off00008889.bin
5ecf9c0c38116c189186f6e127227f23e84f82920d43ed86959629001ae5e746
pdf-font-stream PDF embedded font (sfnt) at offset 0x8889 5184 bytes
font_01_sfnt_off00009a30.bin
90e8730e3ecf9cc2af64bfb53a91c3c4eaa374539ea9ede8de3cd7c2e4a9c6bd
pdf-font-stream PDF embedded font (sfnt) at offset 0x9A30 10116 bytes
font_02_sfnt_off0000bd03.bin
ead7fd593d7f5feef6f283420e9b55f8fa4552f107c64b0063d474dd3355abd8
pdf-font-stream PDF embedded font (sfnt) at offset 0xBD03 16164 bytes