Malicious PDF — malware analysis report

Static analysis result for SHA-256 eddfb425f04b6322…

MALICIOUS

PDF

40.7 KB Created: 2020-09-02 19:00:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 39b6ba731c6f64210555c0c0ee6863ea SHA-1: 7cf3360a9bbc141aa5aa6d2694ecce5fe7c179ce SHA-256: eddfb425f04b632260053b5d0a5ba4eda14d6e6f1502e7d288c0634a5acaae35
152 Risk Score

Malware Insights

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

The PDF contains a link farm and a specific redirector URL, indicating a phishing or scam attempt. The primary malicious link, https://ttraff.link/wix?keyword=flightradar24+flight+tracker+apk+cracked, is designed to lure users into downloading cracked software. The document body, though heavily obfuscated, contains references to the same lure. The presence of numerous other PDF links suggests a broader SEO poisoning or link farm strategy.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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.link/wix?keyword=flightradar24+flight+tracker+apk+cracked
    • https://cdn.shopify.com/s/files/1/0450/7333/4424/files/keragitogijetuziv.pdf
    • https://cdn.shopify.com/s/files/1/0438/0088/7456/files/denuvodajudajexanet.pdf
    • https://cdn.shopify.com/s/files/1/0461/4992/7075/files/fevojib.pdf
    • https://static.usrfiles.com/ugd/b8c837_f7d06ffd7ee54146a207f73ea5f90603.pdf
    • https://static.usrfiles.com/ugd/c75f60_2faf2048ebab44efabf8db9c665fc521.pdf
    • https://static.usrfiles.com/ugd/1a94e8_f7ab76c8723e43dcac3e953a52ff8e8b.pdf
    • https://static.usrfiles.com/ugd/625844_a2f0d0a5a82b48fb85136764bb3836e4.pdf
    • https://static.usrfiles.com/ugd/b8c837_040c7584a9a24ecc9a3cd31e372d9080.pdf
    • https://cdn.shopify.com/s/files/1/0435/6289/3471/files/d_d_3._5_wizard_character_sheet.pdf
    • https://cdn.shopify.com/s/files/1/0440/0329/5382/files/setaze.pdf
    • https://cdn.shopify.com/s/files/1/0433/5291/6119/files/64673259790.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_off00005f63.bin
037b11e4f8c7ac4dac0339396adcd0bfc07f1f9b119c6a2c2b56384af4d98ef6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5F63 5480 bytes
font_01_sfnt_off00007210.bin
ec70a151095a179a11da066c73c9d50cf35e3b4257d86c0e22c0f6226b87d0a4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7210 10532 bytes

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