Malicious PDF — malware analysis report

Static analysis result for SHA-256 4e89740fe6772212…

MALICIOUS

PDF

90.9 KB Created: 2020-08-27 22:17:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7b8b77f23429954c6a1bd1feaa7472b8 SHA-1: a038c951bbac7b6c18c58e706ecadd287bcb5bb5 SHA-256: 4e89740fe6772212d40080035f22edacf7d2c2bbe68a926832f838f8c199df81
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.me'. This indicates the document is designed to redirect users to potentially harmful websites. Additionally, the PDF exhibits characteristics of a link farm, with numerous embedded URLs, many hosted on Shopify, likely to improve search engine ranking for malicious content. The document body, though heavily obfuscated, contains the same redirect URL, 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.me/pify?keyword=ti-36x+ii+bedienungsanleitung+deutsch
    • http://files.simplyexplore.ca/uploads/1/3/1/0/131071298/fonupoxato.pdf
    • http://files.authenticatex.com/uploads/1/3/1/8/131857818/bomatuxogimexas_wanij_xegefagawetimo.pdf
    • http://files.leaningtowertogo.com/uploads/1/3/0/9/130969545/18bb9c463.pdf
    • https://cdn.shopify.com/s/files/1/0437/0196/0854/files/1360880021.pdf
    • https://cdn.shopify.com/s/files/1/0432/2449/8333/files/assessment_in_special_needs_education.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/baludugosutagaxoreforodul.pdf
    • https://cdn.shopify.com/s/files/1/0431/3923/5989/files/bayesian_reasoning_and_machine_learning_barber.pdf
    • https://cdn.shopify.com/s/files/1/0431/6292/7263/files/6442959278.pdf
    • https://cdn.shopify.com/s/files/1/0430/0885/2117/files/76539741637.pdf
    • https://cdn.shopify.com/s/files/1/0430/4666/6389/files/81663039433.pdf
    • https://cdn.shopify.com/s/files/1/0433/3522/1403/files/behemoth_gate_ark.pdf
    • https://cdn.shopify.com/s/files/1/0427/9291/1007/files/dupatotoruloxelekisi.pdf
    • https://cdn.shopify.com/s/files/1/0464/6682/6398/files/jebifawamepamip.pdf
    • https://cdn.shopify.com/s/files/1/0430/1219/4463/files/corporate_governance_structure_templ.pdf
    • https://cdn.shopify.com/s/files/1/0431/1593/7948/files/android_appcompat_v7_error.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_off00010726.bin
14f5e6a5ab9f2712d0256155a4eb5ca9f6d6fe2cf05221ecbbdabf92301bf21d
pdf-font-stream PDF embedded font (sfnt) at offset 0x10726 5384 bytes
font_01_sfnt_off00011962.bin
8403c74d8d437b8ef5a734cb93262c8d026d85d45903c5483704cfec402d2cbc
pdf-font-stream PDF embedded font (sfnt) at offset 0x11962 17552 bytes
font_02_sfnt_off00014ef2.bin
1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e
pdf-font-stream PDF embedded font (sfnt) at offset 0x14EF2 4324 bytes