Malicious PDF — malware analysis report

Static analysis result for SHA-256 de47ee4f53d8639d…

MALICIOUS

PDF

44.3 KB Created: 2020-08-09 15:38:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9d8765af8f386efd5b6d359520d5d4c8 SHA-1: 63ebd1201b277b1252156d4b04a9eac58e3d2f60 SHA-256: de47ee4f53d8639ddc6c360bf859b9e5763d1e79eefa2352098b03f0a8063e17
128 Risk Score

Malware Insights

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

The PDF contains a link farm designed to mimic search engine results, directing users to a malicious redirector. The document body, though heavily obfuscated, contains the URL 'https://ttraff.cc/pify?keyword=hands+on+machine+learning+for+algorithmic+trading+pdf+download', which is flagged as a malicious redirector. This suggests the document's primary purpose is to trick users into clicking malicious links under the guise of providing valuable content.

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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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/pify?keyword=hands+on+machine+learning+for+algorithmic+trading+pdf+download
    • http://files.stjohnofthecrossacademy.com/uploads/1/3/1/4/131406982/puwuju_nikabipegog_dovapimobufoj_nitago.pdf
    • http://files.lymanproductions.com/uploads/1/3/0/9/130969595/ripodewajalixogola.pdf
    • http://files.eklaboutique.com/uploads/1/3/0/8/130874588/1a1ce567.pdf
    • http://files.gudstofficial.com/uploads/1/3/1/3/131379280/bobad-rezipe-midimeko.pdf
    • https://cdn.shopify.com/s/files/1/0429/7634/6266/files/17074543685.pdf
    • https://cdn.shopify.com/s/files/1/0427/7259/4844/files/39770074008.pdf
    • https://cdn.shopify.com/s/files/1/0432/3606/5435/files/43649556794.pdf
    • https://cdn.shopify.com/s/files/1/0436/3524/5209/files/how_to_play_ps2_games_on_pc.pdf
    • https://cdn.shopify.com/s/files/1/0430/9755/5093/files/87038237877.pdf
    • https://cdn.shopify.com/s/files/1/0434/5918/2745/files/nba_2k13_cheat_code.pdf
    • https://cdn.shopify.com/s/files/1/0435/5876/4696/files/fokafizerizomazisofawelu.pdf
    • https://cdn.shopify.com/s/files/1/0430/3332/9817/files/fundamentals_of_vibrations_meirovitch.pdf
    • https://cdn.shopify.com/s/files/1/0431/4952/5149/files/vadipizijaraligukavulo.pdf
    • https://cdn.shopify.com/s/files/1/0432/3796/5986/files/49194587957.pdf
    • https://cdn.shopify.com/s/files/1/0431/1836/2781/files/edward_snowden_book_free.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/
    • https://cdn.shopify.com/s/files/1/0430/3332/9817

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006dcf.bin
1aab4dcc34cecebd42b8d079952fa28e10c441cb18ff829a376f3a1221aa85bd
pdf-font-stream PDF embedded font (sfnt) at offset 0x6DCF 5624 bytes
font_01_sfnt_off000080d9.bin
a9d381ebb960c9819cd1d6b59bb82635fc9955f0d9ee03359b56659fd042371d
pdf-font-stream PDF embedded font (sfnt) at offset 0x80D9 10128 bytes