Malicious PDF — malware analysis report

Static analysis result for SHA-256 424e92a674d2b213…

MALICIOUS

PDF

40.6 KB Created: 2020-08-26 13:40:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3ef5aaadf56c88cee6c3c1c414d563f8 SHA-1: 890de5da921f704acad004500a2c4e396950533f SHA-256: 424e92a674d2b2134e0d54d74363f706654eefbbdd762b217220e88a164a0c74
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, which points to a URL designed to obscure the ultimate destination. The document body, though heavily obfuscated, also contains this malicious URL and several other URLs pointing to PDF files hosted on Shopify. The presence of a link farm suggests an attempt to manipulate search engine results or distribute malicious content through seemingly legitimate-looking documents. The primary malicious URL is https://ttraff.cc/pify?keyword=faguner+mohonay+mp3+download.

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.cc/pify?keyword=faguner+mohonay+mp3+download
    • http://xugikula.gilroyffa.com/uploads/1/3/2/8/132815110/debusubibow_minijuvak_sebifuvigid_lipazizojeroni.pdf
    • http://kemat.anarchydieseltuning.net/uploads/1/3/1/4/131406381/c13fa.pdf
    • http://files.microhydroassociation.org/uploads/1/3/1/3/131398117/160fc957d539.pdf
    • https://cdn.shopify.com/s/files/1/0439/2304/6555/files/mysql_workbench_user_manual.pdf
    • https://cdn.shopify.com/s/files/1/0435/2140/9184/files/2183663340.pdf
    • https://cdn.shopify.com/s/files/1/0432/1997/6350/files/kowunuvedugudananetobona.pdf
    • https://cdn.shopify.com/s/files/1/0440/0742/4158/files/bejidokefonavebesatodevab.pdf
    • https://cdn.shopify.com/s/files/1/0434/8280/8472/files/aqa_a_level_biology_textbook_free.pdf
    • https://cdn.shopify.com/s/files/1/0428/2174/6847/files/40270747531.pdf
    • https://cdn.shopify.com/s/files/1/0429/5848/7703/files/paxisurigakutilit.pdf
    • https://cdn.shopify.com/s/files/1/0429/9436/8663/files/tufolojinakotisumir.pdf
    • https://cdn.shopify.com/s/files/1/0437/6703/8109/files/una_canzone_d_amore_testo.pdf
    • https://cdn.shopify.com/s/files/1/0431/1616/7328/files/quantum_harmonic_oscillator_solution.pdf
    • https://cdn.shopify.com/s/files/1/0438/4207/6837/files/21292119496.pdf
    • https://cdn.shopify.com/s/files/1/0432/7315/8806/files/31049265795.pdf
    • https://cdn.shopify.com/s/files/1/0428/5018/9478/files/14863831997.pdf
    • https://cdn.shopify.com/s/files/1/0434/8795/3053/files/29468335772.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/1/0432/7315/8806/files/310492

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005592.bin
4e608acf2c0378c9744c5c41b1093888e05320098b6c4ed8648e1378cc9daf3e
pdf-font-stream PDF embedded font (sfnt) at offset 0x5592 5508 bytes
font_01_sfnt_off0000683d.bin
ad68e854110684ef150151f442738a534c21f4ec0b8d97adc105898474eb3369
pdf-font-stream PDF embedded font (sfnt) at offset 0x683D 14392 bytes