Malicious PDF — malware analysis report

Static analysis result for SHA-256 e008426a0ebbf775…

MALICIOUS

PDF

50.5 KB Created: 2020-08-21 16:08:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 05ebadd9b122fd1d5104373deda9842a SHA-1: 70a6c745720246ea230833bfd6feab4d140b9428 SHA-256: e008426a0ebbf775f78f2df2cd4c412583d5080f65563f80799144ba1c0e37b1
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a lure related to an 'English to Spanish translator app' and embeds numerous links, including a critical redirector link to 'ttraff.cc'. This suggests a social engineering attack aimed at directing users to malicious content. The presence of a link farm further supports this, as it's a common technique to obscure malicious destinations. No scripts were extracted, but the PDF structure and embedded URLs strongly indicate a malicious redirector pattern.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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=english+to+spanish+translator+app
    • http://files.pound4poundathletics.com/uploads/1/3/1/8/131871816/2091625.pdf
    • http://files.truehopehealthyliving.com/uploads/1/3/0/7/130775518/6642963.pdf
    • http://wowut.jenallengiftedpracticum.com/uploads/1/3/1/6/131606000/pawumanaf.pdf
    • https://cdn.shopify.com/s/files/1/0454/5331/2150/files/6th_grade_end_of_year_math_test_common_core.pdf
    • https://cdn.shopify.com/s/files/1/0427/8131/1132/files/3091093301.pdf
    • https://cdn.shopify.com/s/files/1/0438/7710/5832/files/vuxanibam.pdf
    • https://cdn.shopify.com/s/files/1/0437/8250/4600/files/73388729088.pdf
    • https://cdn.shopify.com/s/files/1/0430/3981/7890/files/1414773553.pdf
    • https://cdn.shopify.com/s/files/1/0433/0926/9156/files/pupojiwegu.pdf
    • https://cdn.shopify.com/s/files/1/0431/3209/2573/files/tusixavajika.pdf
    • https://cdn.shopify.com/s/files/1/0430/6888/3098/files/64116527336.pdf
    • https://cdn.shopify.com/s/files/1/0432/7833/6165/files/fegosirukutelifijatire.pdf
    • https://cdn.shopify.com/s/files/1/0432/6454/0835/files/fudisitosav.pdf
    • https://cdn.shopify.com/s/files/1/0427/9861/2636/files/borugas.pdf
    • https://cdn.shopify.com/s/files/1/0432/8371/0108/files/problemas_resueltos_de_enlaces_quimicos.pdf
    • https://cdn.shopify.com/s/files/1/0431/1449/6161/files/suzuki_dr_200_manual.pdf
    • https://cdn.shopify.com/s/files/1/0429/8548/8543/files/53531799646.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_off00007caa.bin
b648f5d732cd438dd7ff5da7eb7a2a9c4af2ce54817971f26fb10bb00b6504e8
pdf-font-stream PDF embedded font (sfnt) at offset 0x7CAA 4708 bytes
font_01_sfnt_off00008c8f.bin
59a496d6d2c8c4af15ab1944262d0a2572ef3b41fffcb8d8d4d5e428d8c47c7a
pdf-font-stream PDF embedded font (sfnt) at offset 0x8C8F 10076 bytes
font_02_sfnt_off0000aeec.bin
d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378
pdf-font-stream PDF embedded font (sfnt) at offset 0xAEEC 4324 bytes