Malicious PDF — malware analysis report

Static analysis result for SHA-256 a2053bbf4bdad120…

MALICIOUS

PDF

51.8 KB Created: 2020-08-24 09:43:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 287e8cc4e5e8abb027905c7fba9021c1 SHA-1: a4631304f1711af414476bb81be03f098a6b7d30 SHA-256: a2053bbf4bdad1208e90c247cbab8dea1435b6f4e00e538303f635799054b4b3
182 Risk Score

Malware Insights

MITRE ATT&CK
T1553 Subvert Trust Controls T1059 Command and Scripting Interpreter

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'https://ttraff.com/pify?keyword=burp+certificate+install+android'. Additionally, it exhibits a PDF link farm heuristic, indicating a large number of outbound links, many hosted on Shopify. The document body, though heavily obfuscated, contains the same malicious URL and references to certificate installation. The 'SE_SECRET_RECOVERY_LURE' heuristic indicates the document attempts to trick users into revealing sensitive recovery information, likely to facilitate further compromise after certificate installation.

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.
  • Recovery secret / private key request critical SE_SECRET_RECOVERY_LURE
    Document requests recovery phrases, private keys, backup codes, or saved passwords. Requests for these secrets in a document are high-risk.
  • 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=burp+certificate+install+android
    • http://gevakot.madisonwilloughby.com/uploads/1/3/1/4/131406717/resuzunaloxug_lexebalag_mapoputo_jasojaduzom.pdf
    • http://pimijelod.tonimullerpsychology.com/uploads/1/3/0/8/130814004/d6cc5f.pdf
    • http://gimovo.crowdergize.com/uploads/1/3/0/8/130814788/rozunujetopozirodulu.pdf
    • http://files.billingsdiscovery.com/uploads/1/3/0/7/130776642/gunopisosefonoj-tukalome-xovewawekika-mutasenenak.pdf
    • http://bawisilin.kredphotography.com/uploads/1/3/2/3/132303219/581a884f346df5e.pdf
    • https://cdn.shopify.com/s/files/1/0435/6043/5871/files/kozadogidin.pdf
    • https://cdn.shopify.com/s/files/1/0436/6345/8457/files/manifesto_pakatan_harapan_selangor_2020.pdf
    • https://cdn.shopify.com/s/files/1/0432/7243/7910/files/wijidawegorebenapororori.pdf
    • https://cdn.shopify.com/s/files/1/0434/2946/2165/files/nervous_system_worksheet_high_school_answers.pdf
    • https://cdn.shopify.com/s/files/1/0440/0388/5206/files/musuxikog.pdf
    • https://cdn.shopify.com/s/files/1/0433/7847/5162/files/55425933668.pdf
    • https://cdn.shopify.com/s/files/1/0438/9571/8040/files/zowimofino.pdf
    • https://cdn.shopify.com/s/files/1/0431/3081/4626/files/wiporujovekebutebilaji.pdf
    • https://cdn.shopify.com/s/files/1/0446/8968/6681/files/antologia_de_cuentos_espaoles.pdf
    • https://cdn.shopify.com/s/files/1/0450/3774/8382/files/32274952851.pdf
    • https://cdn.shopify.com/s/files/1/0437/4655/8106/files/49354418008.pdf
    • https://cdn.shopify.com/s/files/1/0434/1104/6558/files/rick_ross_teflon_don_download_zip.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_off0000808d.bin
4224b05b4b43d00ac439b6d7686e1cde9f8f388090e241659ef8f0e8938d6516		 pdf-font-stream PDF embedded font (sfnt) at offset 0x808D 5200 bytes
font_01_sfnt_off0000924b.bin
fed7623869a3182c4db6b262cbec7bd360ff23de58d827b26b2c0684eb3216c4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x924B 15564 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.