Malicious PDF — malware analysis report

Static analysis result for SHA-256 faccc9bd241b6932…

MALICIOUS

PDF

39.7 KB Created: 2020-08-31 23:20:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 0edec1189e566a16dd45b2103720bcf9 SHA-1: 80b9abf6da1435061f7c4b436c0e0160d2b7907c SHA-256: faccc9bd241b6932c2394379c3941c3dba4a57c619481c6ae96dc4867b1d456f
162 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/wix?keyword=telefone+alcatel+lucent+4028+manual'. It also exhibits characteristics of a password-protected archive lure, suggesting the PDF itself is a decoy to facilitate the delivery of a separate, encrypted payload. The document body, though heavily obfuscated, contains references to the malicious URL and other PDF links, reinforcing the redirection attempt.

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.
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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/wix?keyword=telefone+alcatel+lucent+4028+manual
    • https://static.usrfiles.com/ugd/b8c837_b9464c5a347c4eaf88625084b4a2eb7a.pdf
    • https://static.usrfiles.com/ugd/b8c837_7a9611631e2c47a1bae29aa0f52696d1.pdf
    • https://static.usrfiles.com/ugd/10a4aa_8297f1832776445887b473c3984ba86e.pdf
    • https://cdn.shopify.com/s/files/1/0448/2279/0305/files/world_map_with_names_of_countries.pdf
    • https://cdn.shopify.com/s/files/1/0431/2976/6039/files/94082813321.pdf
    • https://cdn.shopify.com/s/files/1/0430/8510/3258/files/char_broil_classic_grill_owner_s_manual.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/53262414385.pdf
    • https://cdn.shopify.com/s/files/1/0428/6241/1942/files/54028528025.pdf
    • https://cdn.shopify.com/s/files/1/0432/8813/3787/files/zefurokugela.pdf
    • https://cdn.shopify.com/s/files/1/0437/1103/7591/files/world_university_ranking_2018.pdf
    • https://cdn.shopify.com/s/files/1/0427/9032/2342/files/beauty_behind_the_madness_torrent.pdf
    • https://cdn.shopify.com/s/files/1/0438/4748/3552/files/oxford_bookworms_stage_2.pdf
    • https://cdn.shopify.com/s/files/1/0433/4003/8302/files/welewuzoketij.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005dde.bin
3b42177b3edbe4baae2353655eeff5116306f2335d33c4f96d8f5930c42c6505		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5DDE 5256 bytes
font_01_sfnt_off00006fb9.bin
a60b8654df2d9dd9c8163b640d53a081798c17ab1c2feb09e415285e338c546b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6FB9 10112 bytes

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