Malicious PDF — malware analysis report

Static analysis result for SHA-256 522b9b32b43b6b09…

MALICIOUS

PDF

48.2 KB Created: 2020-08-19 06:25:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 51293a56a6988901bbaa63543a253781 SHA-1: bc8a1d063775d24af8fa038c30b07fd5d465d3b9 SHA-256: 522b9b32b43b6b09ef0b8732c40808db257897e820149e021ba3bee477eaa0c3
120 Risk Score

Malware Insights

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

The PDF file contains a link farm and a direct link to a known malicious redirector, ttraff.com. The document body, though partially corrupted, contains text related to 'Top 5 high graphics android games 2019', which likely serves as a lure to entice users to click the malicious link. The primary malicious IOC is the redirector URL, which is designed to lead users to further malicious content.

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.com/pify?keyword=top+5+high+graphics+android+games+2019
    • http://duxuniv.marthatorresfoodstylist.com/uploads/1/3/0/8/130873822/bajasodemisudi.pdf
    • http://roxakenu.the-powerproject.com/uploads/1/3/1/4/131454057/3143246.pdf
    • http://files.striveforhealthy.com/uploads/1/3/1/4/131409909/6176246.pdf
    • http://files.mintmarktogo.com/uploads/1/3/0/7/130738596/f5c1a.pdf
    • http://rorun.preserveschoettler.com/uploads/1/3/2/6/132681670/1d83a241e306.pdf
    • https://cdn.shopify.com/s/files/1/0431/2819/3184/files/firinaruve.pdf
    • https://cdn.shopify.com/s/files/1/0436/4907/3312/files/guralux.pdf
    • https://cdn.shopify.com/s/files/1/0441/3823/4008/files/rewexoxomojeg.pdf
    • https://cdn.shopify.com/s/files/1/0436/2846/2240/files/zulipataju.pdf
    • https://cdn.shopify.com/s/files/1/0438/2670/8640/files/wedubezem.pdf
    • https://cdn.shopify.com/s/files/1/0437/7267/4210/files/71213111061.pdf
    • https://cdn.shopify.com/s/files/1/0441/1283/8808/files/zuzozubokileselefuwemuji.pdf
    • https://cdn.shopify.com/s/files/1/0433/4734/5573/files/ginima.pdf
    • https://cdn.shopify.com/s/files/1/0435/7783/5681/files/69974533299.pdf
    • https://cdn.shopify.com/s/files/1/0429/8525/9159/files/child_education_allowance_form_2018.pdf
    • https://cdn.shopify.com/s/files/1/0429/4678/9542/files/33537719293.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_off00007c45.bin
daf84c3b5866e63e79996aef5374729199bacc78b6ecce16f45105b4e9719e5d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7C45 6012 bytes
font_01_sfnt_off00009090.bin
d8b43a8888e972640a43c5c7a14ead210d9963404cb278ccc3e32ed9570820bb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9090 10364 bytes

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