Malicious PDF — malware analysis report

Static analysis result for SHA-256 1abf3ac6a442047d…

MALICIOUS

PDF

35.9 KB Created: 2020-08-22 03:51:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4c7795ebd5b4c3936b688fddefbc0f0a SHA-1: e3564e302d88ad65b5a659af73d5f4e506b3bb24 SHA-256: 1abf3ac6a442047d139504d01154ec34491b8b23af26a29e3523d16701f6ad00
120 Risk Score

Malware Insights

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

The PDF contains a link farm and a malicious redirector disguised as a certificate of conformity. The primary malicious URL, https://ttraff.cc/pify?keyword=electronic+certificate+of+conformity%2528+e-+coc%2529, is designed to redirect users to potentially harmful content. The presence of numerous links to external PDFs, many hosted on Shopify, suggests a tactic to manipulate search engine results or distribute further malicious content. No scripts were extracted, limiting the analysis of direct execution capabilities.

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=electronic+certificate+of+conformity%2528+e-+coc%2529
    • http://nepakeb.amandaglathlin.com/uploads/1/3/0/7/130738970/luginafoxo.pdf
    • http://lafovujax.pumpkincurioushistory.com/uploads/1/3/0/8/130814729/fdf4f39ce106.pdf
    • http://files.nalcbranch489.com/uploads/1/3/0/7/130739658/vaxoravufu.pdf
    • http://rameboze.tcfastpitchshowcase.com/uploads/1/3/1/4/131407005/reduratabiw-sopezo-nugibo-febirimoli.pdf
    • http://files.livignoexclusive.com/uploads/1/3/0/7/130738700/338839.pdf
    • https://cdn.shopify.com/s/files/1/0440/7564/7128/files/peramevi.pdf
    • https://cdn.shopify.com/s/files/1/0429/5560/4134/files/jafaves.pdf
    • https://cdn.shopify.com/s/files/1/0430/7664/9124/files/53671096667.pdf
    • https://cdn.shopify.com/s/files/1/0448/4333/5837/files/automata_theory_and_compiler_design.pdf
    • https://cdn.shopify.com/s/files/1/0430/8231/7991/files/27054596341.pdf
    • https://cdn.shopify.com/s/files/1/0430/1311/1961/files/safoxelidekexuw.pdf
    • https://cdn.shopify.com/s/files/1/0432/2859/4336/files/bone_marrow_structure_and_function.pdf
    • https://cdn.shopify.com/s/files/1/0430/6108/4322/files/nebuji.pdf
    • https://cdn.shopify.com/s/files/1/0438/8087/4139/files/nuvegofomivafobitasududa.pdf
    • https://cdn.shopify.com/s/files/1/0429/5213/0716/files/d_wet_py.pdf
    • https://cdn.shopify.com/s/files/1/0437/7329/6789/files/57325581162.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_off00004ebc.bin
6ec004d441ddb64f731b388581311f5febb2c7f36c78cb08dcc96aa0605f5d07
pdf-font-stream PDF embedded font (sfnt) at offset 0x4EBC 5096 bytes
font_01_sfnt_off00006012.bin
1650bf5705f8d027cfd37ca6bef5c0263a8019bc54bc8d2cb9942157e14a47c5
pdf-font-stream PDF embedded font (sfnt) at offset 0x6012 10084 bytes