Malicious PDF — malware analysis report

Static analysis result for SHA-256 52c33c3af796abff…

MALICIOUS

PDF

42.4 KB Created: 2020-08-07 01:40:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4c1bd4107848a8c618f08bd5f86d443c SHA-1: f5fbaa81c3a8192564f78080465ed0e7a388ea3c SHA-256: 52c33c3af796abffd388dea3db7a9e168447ebd1883adc9f497e39dae4a65584
180 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=aws+console+tutorial+pdf'. Additionally, the document body contains a lure requesting recovery secrets, indicating a phishing attempt. The presence of a large number of external PDF links, many hosted on Shopify, suggests a link farm designed to improve SEO for malicious content. No scripts were extracted, but the primary attack vector appears to be social engineering via a malicious link.

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.cc/pify?keyword=aws+console+tutorial+pdf
    • http://files.hannmfg.com/uploads/1/3/0/8/130813364/4cd82.pdf
    • http://kapikelox.splaxcustoms.com/uploads/1/3/1/4/131453329/5501635.pdf
    • http://fixil.realthingspizza.com/uploads/1/3/2/7/132710621/7399904.pdf
    • http://files.sydneywippman.com/uploads/1/3/1/4/131453902/6bff764.pdf
    • https://cdn.shopify.com/s/files/1/0439/8376/5662/files/kkfit_bulking_program_free.pdf
    • https://cdn.shopify.com/s/files/1/0431/0830/3002/files/kenmore_600_series_washer_manual.pdf
    • https://cdn.shopify.com/s/files/1/0433/8260/3927/files/excel_applications_for_accounting_principles.pdf
    • https://cdn.shopify.com/s/files/1/0433/2378/5370/files/17247629001.pdf
    • https://cdn.shopify.com/s/files/1/0433/0281/3849/files/31462171195.pdf
    • https://cdn.shopify.com/s/files/1/0440/2970/6390/files/ielts_writing_task_2_samples_general_band_8.pdf
    • https://cdn.shopify.com/s/files/1/0428/3714/7811/files/mixer_amplifier_speaker_setup.pdf
    • https://cdn.shopify.com/s/files/1/0436/9511/2347/files/59353963307.pdf
    • https://cdn.shopify.com/s/files/1/0431/5856/9120/files/shield_designs_minecraft.pdf
    • https://cdn.shopify.com/s/files/1/0438/4302/7106/files/77131141214.pdf
    • https://cdn.shopify.com/s/files/1/0431/1734/6965/files/moxoxozetoped.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_off000062b4.bin
35424f1a8837f22729c7717a8ed8279659e52d493457dce249e9dbb0f713cc81
pdf-font-stream PDF embedded font (sfnt) at offset 0x62B4 5228 bytes
font_01_sfnt_off000074a3.bin
ccb4f4bc91f706cdbf3a4c6a6098467915895f491ba0d422f7dac294bf1f33bb
pdf-font-stream PDF embedded font (sfnt) at offset 0x74A3 14108 bytes