Malicious PDF — malware analysis report

Static analysis result for SHA-256 b68f721e02b494a2…

MALICIOUS

PDF

41.4 KB Created: 2020-08-02 00:57:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 421b7d91b83715edb52b446c0a101b8e SHA-1: 5572b5dac312a8c9bf08f3d7c4499c596feb88cb SHA-256: b68f721e02b494a284a6373370088dbcad3f74ea69a07099370a5554f24bdf06
120 Risk Score

Malware Insights

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

The PDF contains a link farm and a specific malicious redirector URL, 'https://ttraff.cc/pify?keyword=wafj+job+board'. This indicates the document is designed to lure users into clicking a link, likely for phishing or malware distribution. The presence of numerous links to Shopify-hosted PDFs suggests an attempt to obscure the malicious redirector by embedding it within a seemingly legitimate context.

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=wafj+job+board
    • http://files.bakerschoolpto.org/uploads/1/3/1/3/131380295/rezegemu.pdf
    • http://files.littlewisheshire.co.uk/uploads/1/3/0/8/130814085/memutorakow-gukeze-tifakuxixumav.pdf
    • http://files.retreatinsider.net/uploads/1/3/2/6/132681308/newimuruwu_roweje_sijajanase_vifaditesix.pdf
    • http://files.thesledshed.net/uploads/1/3/1/0/131069915/8d252b1d5.pdf
    • http://files.teachershallfamedodgecityks.org/uploads/1/3/2/7/132712323/paniripaxixorutes.pdf
    • https://cdn.shopify.com/s/files/1/0437/0527/0437/files/33783484789.pdf
    • https://cdn.shopify.com/s/files/1/0428/7922/1919/files/da_form_67-_10-_1a_fillable.pdf
    • https://cdn.shopify.com/s/files/1/0437/8787/8549/files/gizogasiretovofemelu.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/53567737566.pdf
    • https://cdn.shopify.com/s/files/1/0436/5543/0309/files/derulavod.pdf
    • https://cdn.shopify.com/s/files/1/0429/7146/3831/files/80514983430.pdf
    • https://cdn.shopify.com/s/files/1/0430/3467/3305/files/93233609651.pdf
    • https://cdn.shopify.com/s/files/1/0433/6985/7176/files/28535635381.pdf
    • https://cdn.shopify.com/s/files/1/0431/3091/2934/files/77862396483.pdf
    • https://cdn.shopify.com/s/files/1/0440/7649/9096/files/mw3_hack_xbox_360.pdf
    • https://cdn.shopify.com/s/files/1/0430/2825/0781/files/57266736485.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_off00006502.bin
0b82041d7ec9f3cd3c7ab74c2233b43c03781339e5dd8872ac8619a984da271d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6502 4920 bytes
font_01_sfnt_off000075e1.bin
e51fb83fa11f28d0414c5f83604073940884c632eb19864198ad28d2b279b1cd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x75E1 10304 bytes

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