Malicious PDF — malware analysis report

Static analysis result for SHA-256 c929a16a8348321c…

MALICIOUS

PDF

44.8 KB Created: 2020-09-08 06:49:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 62b49a4b426423954cdc1678fec5769c SHA-1: 80cce7d0324acef6e5c4e2f25dcf66fba0882cb5 SHA-256: c929a16a8348321c89fa013b484b2877d1250af3406bbec93bd22a52dcd3f827
180 Risk Score

Malware Insights

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

The PDF document contains a lure requesting sensitive recovery information, which is a high-risk social engineering tactic. It also embeds a mass of external links, with one identified as a malicious redirector. The primary malicious URL is https://ttraff.club/wix?keyword=cryptography+techniques+involved+in+information+security, which likely serves as the initial stage of a phishing or malware delivery chain. The document's structure and content suggest a phishing attempt disguised as a technical document.

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.
  • Recovery secret / private key request critical SE_SECRET_RECOVERY_LURE
    Document requests recovery phrases, private keys, backup codes, or saved passwords. Requests for these secrets in a document are high-risk.
  • 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.club/wix?keyword=cryptography+techniques+involved+in+information+security
    • https://static.usrfiles.com/ugd/145364_1481f2a8ecf449619c6bd052798106af.pdf
    • https://static.usrfiles.com/ugd/b54ff4_1f7223d045bb43948f56f172242bdfb8.pdf
    • https://static.usrfiles.com/ugd/07ef24_3187bb80ab7c495a90ef5e0a74381dfe.pdf
    • https://static.usrfiles.com/ugd/9757e7_0006acc6c90343a6b04d9d2a746e38eb.pdf
    • https://cdn.shopify.com/s/files/1/0459/9601/5773/files/tazufesojusitegefenizoko.pdf
    • https://cdn.shopify.com/s/files/1/0463/3391/9393/files/brightsign_xd234_manual.pdf
    • https://cdn.shopify.com/s/files/1/0440/8701/7637/files/dental_instrument_names_and_functions.pdf
    • https://static.usrfiles.com/ugd/49be48_f807c75138fb4dd4809553fb4e7c0ecd.pdf
    • https://static.usrfiles.com/ugd/ae15ca_004976dc208f4efe802959008fc80d52.pdf
    • https://static.usrfiles.com/ugd/dc98cc_177fac81179e4b919fa47c11fb4b441e.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_off0000629a.bin
fa67074a9d97198b20236438ef8d10f2fcd005efbd62abdc53a0dc4c2ee04b40		 pdf-font-stream PDF embedded font (sfnt) at offset 0x629A 5760 bytes
font_01_sfnt_off00007610.bin
a12ee15f94e0391a4312651f58c8e375093cc1fe0ba64a7f1cfd8e103cccd609		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7610 9868 bytes
font_02_sfnt_off000097dd.bin
ce7e2e230a41ba6fc2d7d2240890c8289d67876d84a3d076d67c0b48111c8230		 pdf-font-stream PDF embedded font (sfnt) at offset 0x97DD 4324 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.