Malicious PDF — malware analysis report

Static analysis result for SHA-256 7cec9cd9b781d16c…

MALICIOUS

PDF

49.8 KB Created: 2020-08-26 14:38:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 76298338b141ceb65293940c21e1d064 SHA-1: c7ba6b1765184076c32559e92dcdb62558e55fbf SHA-256: 7cec9cd9b781d16c5ab4fd46030dd64f2d491501f4e897df46ccb0c1e89b12ce
120 Risk Score

Malware Insights

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

The PDF file contains multiple embedded links, with one identified as a malicious redirector. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK indicates that the link https://ttraff.com/pify?keyword=gundam+astray+red+frame+english+manual leads to known malicious infrastructure. The PDF_SEO_LINK_FARM heuristic further suggests a large number of external PDF links, many hosted on shopify.com, which is a common tactic for distributing malicious documents. The document body contains obfuscated text and URLs, reinforcing the malicious intent.

Heuristics 3

  • 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.
  • 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.com/pify?keyword=gundam+astray+red+frame+english+manual
    • http://xudaw.nickgatesart.com/uploads/1/3/1/0/131069759/a4324b.pdf
    • http://dozetoro.vanderlegal.com/uploads/1/3/1/4/131438641/ladex-wilojudinotij-vunibaxazizu.pdf
    • http://vusedu.mccreaproductions.com/uploads/1/3/0/9/130969744/rijizafowugijadu.pdf
    • http://files.lhfuntravel.com/uploads/1/3/1/8/131858045/1830699.pdf
    • https://cdn.shopify.com/s/files/1/0435/2458/7674/files/63360586002.pdf
    • https://cdn.shopify.com/s/files/1/0433/8280/0542/files/xuvumuxilitis.pdf
    • https://cdn.shopify.com/s/files/1/0432/2210/6271/files/genero_literario_definicion.pdf
    • https://cdn.shopify.com/s/files/1/0450/4082/8566/files/rekajud.pdf
    • https://cdn.shopify.com/s/files/1/0436/2534/9283/files/batman_arkham_knight_poradnik_chomikuj.pdf
    • https://cdn.shopify.com/s/files/1/0441/0392/5912/files/salodenebob.pdf
    • https://cdn.shopify.com/s/files/1/0432/7620/6238/files/tiledinipukadumebiz.pdf
    • https://cdn.shopify.com/s/files/1/0443/0485/9292/files/lagu_amelia_terbaru_2019.pdf
    • https://cdn.shopify.com/s/files/1/0432/9239/3640/files/ejercicios_resueltos_movimiento_rectilineo_uniforme_acelerado.pdf
    • https://cdn.shopify.com/s/files/1/0433/6209/1167/files/nawobuxiloremabagef.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_off00007190.bin
04b91524771fdf11cbb2e0db7f3ac5c7ac08d69f5a839b6854d67e4fba4c8848
pdf-font-stream PDF embedded font (sfnt) at offset 0x7190 3628 bytes
font_01_sfnt_off00007e73.bin
cca866e95ff28407dddf96ca1a3dbec03195014a342f09f0e3ac4a406ae0b9f5
pdf-font-stream PDF embedded font (sfnt) at offset 0x7E73 5456 bytes
font_02_sfnt_off000090e0.bin
6ff374e7bc0afb3abbe8fcc8fc0c72abab135c18aadd07b25609c582d5a9b238
pdf-font-stream PDF embedded font (sfnt) at offset 0x90E0 12844 bytes