Malicious PDF — malware analysis report

Static analysis result for SHA-256 2eacc9c368b727cb…

MALICIOUS

PDF

47.1 KB Created: 2020-08-31 04:02:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 118c5e37f18079782c6aa3e8a094f316 SHA-1: a5e2d454255e6e5fd6831d47543ad6741f3985b2 SHA-256: 2eacc9c368b727cbc7238f8e92f57f3a22b0af4f968caf99301aea5867381e86
152 Risk Score

Malware Insights

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

The PDF contains a link farm pointing to various PDF files, with the primary link leading to a redirector. The document body and heuristics indicate the intent is to lure users to download software, specifically mentioning 'mobile odin pro apk download'. The presence of numerous external links and a malicious redirector suggests a phishing or malware distribution attempt.

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=mobile+odin+pro+apk+download
    • https://static.usrfiles.com/ugd/f3ecbe_6de52b013fe24c27895c5d312fbfca00.pdf
    • https://static.usrfiles.com/ugd/0d9a50_285a79e15b374a738e693549e78e2677.pdf
    • https://static.usrfiles.com/ugd/b8c837_2aa03b9f0ca9473d926d453b326addf1.pdf
    • https://static.usrfiles.com/ugd/88a84f_0fbb3620b2f4455f80770aa15427d894.pdf
    • https://static.usrfiles.com/ugd/b8c837_3bd5f229bb2d4ace8ce9d91a1189196a.pdf
    • https://static.usrfiles.com/ugd/b8c837_85a02cd4e13f44c7a75ca7189ebe6650.pdf
    • https://static.usrfiles.com/ugd/078c79_4b5e61283cd74de3b3c242441fa6ccba.pdf
    • https://static.usrfiles.com/ugd/b8c837_a9006dcd00db4a1ba164894ddcfa0059.pdf
    • https://cdn.shopify.com/s/files/1/0431/1715/0368/files/sogagedimixinapawun.pdf
    • https://cdn.shopify.com/s/files/1/0447/2678/0060/files/blow_my_mind_audio.pdf
    • https://cdn.shopify.com/s/files/1/0428/3337/9487/files/aptitude_question_papers_with_answers_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0431/9988/9569/files/99407823640.pdf
    • https://static.usrfiles.com/ugd/362633_c8f97e3dff2c4e7ca83fe2ad9064c1a3.pdf
    • https://static.usrfiles.com/ugd/9a242c_151c3a6b5e754d81ba8a15d2ac9b628c.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_off000064e5.bin
44b2cfe986b68a3b751ae33d0e6d2a4a4a5ced7b19863ba0dce8d2f96cb0da16
pdf-font-stream PDF embedded font (sfnt) at offset 0x64E5 4784 bytes
font_01_sfnt_off0000752b.bin
e4220da81478d8d62f8de596743ac458d27a193ed0a18681768bff6ae3b34dce
pdf-font-stream PDF embedded font (sfnt) at offset 0x752B 14236 bytes
font_02_sfnt_off0000a1a7.bin
a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f
pdf-font-stream PDF embedded font (sfnt) at offset 0xA1A7 4324 bytes