Malicious PDF — malware analysis report

Static analysis result for SHA-256 ace1b10dc0dbba06…

MALICIOUS

PDF

42.8 KB Created: 2020-08-05 10:28:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 795f039eed33180d123d31a1ed17f7ea SHA-1: cd916db701338860f758692c353785e4dc085b21 SHA-256: ace1b10dc0dbba06638fdf1510c9ea98590410ad7f47d8d69b1e6a3f4298830b
120 Risk Score

Malware Insights

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

The PDF document contains a large number of embedded links, many of which point to external resources. One critical heuristic firing indicates a malicious redirector link, specifically 'https://ttraff.cc/pify?keyword=poverty+alleviation+programmes+in+nigeria+pdf'. This suggests the document is designed to redirect users to malicious infrastructure, likely for phishing or malware distribution. The document body, though heavily obfuscated, contains the same malicious URL and numerous other links, reinforcing the attack pattern.

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=poverty+alleviation+programmes+in+nigeria+pdf
    • http://files.quinlanquality.co.nz/uploads/1/3/2/6/132681398/5311663.pdf
    • http://files.friendswithflightbenefits.com/uploads/1/3/1/0/131070485/vovaraluxosuxow.pdf
    • http://files.mandabyboutique.com/uploads/1/3/1/4/131455024/kekogeganutijoxuzuga.pdf
    • http://files.betterhomes303.com/uploads/1/3/2/7/132741081/730c5c9f7c428c.pdf
    • https://cdn.shopify.com/s/files/1/0431/7567/4024/files/jebewidimi.pdf
    • https://cdn.shopify.com/s/files/1/0436/5837/9417/files/fundamentals_of_general_organic_and_biological_chemistry.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/32343356061.pdf
    • https://cdn.shopify.com/s/files/1/0431/6993/9612/files/xikepu.pdf
    • https://cdn.shopify.com/s/files/1/0428/7823/8886/files/stahl_s_essential_psychopharmacology_6th_edition.pdf
    • https://cdn.shopify.com/s/files/1/0436/5815/0046/files/46915002641.pdf
    • https://cdn.shopify.com/s/files/1/0437/9541/5189/files/dark_knight_macros.pdf
    • https://cdn.shopify.com/s/files/1/0431/3153/5524/files/artritis_reumatoide_seropositiva.pdf
    • https://cdn.shopify.com/s/files/1/0437/2630/7480/files/fefavexapokajere.pdf
    • https://cdn.shopify.com/s/files/1/0431/5673/4109/files/27665161.pdf
    • https://cdn.shopify.com/s/files/1/0435/9382/6463/files/petusonizipixetuma.pdf
    • https://cdn.shopify.com/s/files/1/0434/5259/6374/files/gesun.pdf
    • https://cdn.shopify.com/s/files/1/0440/9557/0072/files/16648049945.pdf
    • https://cdn.shopify.com/s/files/1/0431/7990/1096/files/56547251926.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_off000066e1.bin
50155d1b3fa965d788626dd0c9494f65832ceec67e21d63ac87cbbe6222c687d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x66E1 5524 bytes
font_01_sfnt_off000079a8.bin
f6df9ced00bd2ac7e6dd5e307f335592490ddc46e4c83e4228d5444c5de76bbe		 pdf-font-stream PDF embedded font (sfnt) at offset 0x79A8 10564 bytes

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