Malicious PDF — malware analysis report

Static analysis result for SHA-256 2a23ab83dfe95d83…

MALICIOUS

PDF

40.1 KB Created: 2020-08-21 02:52:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c8f1727059ebb6da64be4f0a6e4b106f SHA-1: a49d46b733c43f2ac7868c02e7ec6828d8387bbb SHA-256: 2a23ab83dfe95d831e0a83c0d62b10acc2f7dedc3078ea4a8e549484a82921be
160 Risk Score

Malware Insights

MITRE ATT&CK
T1204.001 Malicious Link T1204.002 User Execution: Malicious File

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.cc'. Additionally, it exhibits characteristics of a social engineering attack, instructing the user to press Win+R or paste a command, consistent with bypassing macro restrictions. The document body also contains the malicious URL and numerous other PDF links, suggesting a link farm designed to distribute malicious 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.
  • ClickFix social engineering attack high SE_CLICKFIX
    Document instructs the user to press Win+R or paste a command into a terminal — consistent with ClickFix attacks that bypass macro restrictions by tricking users into running malicious commands directly
  • 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=witchery+mod+minecraft+pe
    • http://files.kaitlynkerrphotography.com/uploads/1/3/2/6/132681851/091f4e43e21.pdf
    • http://files.bullitteastarchery.com/uploads/1/3/1/3/131383533/6928671.pdf
    • http://files.kleindesignclass.com/uploads/1/3/1/0/131070089/5932682.pdf
    • http://files.stokegiffordscouts.co.uk/uploads/1/3/0/7/130776111/cdb653ff.pdf
    • http://files.ohioaux.com/uploads/1/3/0/7/130775361/detomexapipid_debutitisudor_dovewuwoguju.pdf
    • https://cdn.shopify.com/s/files/1/0427/5604/7004/files/fizabefepuk.pdf
    • https://cdn.shopify.com/s/files/1/0437/2273/5767/files/ielts_speaking_preparation_and_practice.pdf
    • https://cdn.shopify.com/s/files/1/0433/7650/9080/files/moving_coil_voltmeter_and_ammeter.pdf
    • https://cdn.shopify.com/s/files/1/0434/1828/8284/files/62209657475.pdf
    • https://cdn.shopify.com/s/files/1/0433/4488/7966/files/31144836136.pdf
    • https://cdn.shopify.com/s/files/1/0447/6397/1733/files/10934530163.pdf
    • https://cdn.shopify.com/s/files/1/0432/0706/5760/files/btp_en_administracion_hotelera_honduras.pdf
    • https://cdn.shopify.com/s/files/1/0429/4171/0499/files/44458793894.pdf
    • https://cdn.shopify.com/s/files/1/0433/8299/7148/files/gentlemen_prefer_blondes.pdf
    • https://cdn.shopify.com/s/files/1/0438/0993/1426/files/bioethics_an_anthology_2nd_edition_free_download.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_off00005ec6.bin
d8599f2e099ef488e5c3d9bab0b52a1b32aa7300d519eb8b3e603a54932b4de1
pdf-font-stream PDF embedded font (sfnt) at offset 0x5EC6 5300 bytes
font_01_sfnt_off000070b3.bin
f518ec4b42bfe7614338063f1286049762471bf439a9dba5ae5329d9be7af2dc
pdf-font-stream PDF embedded font (sfnt) at offset 0x70B3 10336 bytes