Malicious PDF — malware analysis report

Static analysis result for SHA-256 89edd8e1da9e2a34…

MALICIOUS

PDF

38.7 KB Created: 2020-08-04 09:57:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6cc774225b010824f8e5d7e853d72ce2 SHA-1: adb20ea80d5b7830584d36c32ba87aed7e0856c1 SHA-256: 89edd8e1da9e2a3442001c6caa4141c5b39e46c1b2a1cc517eac69e8379fa77e
120 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 ttraff.com. This indicates the document's primary purpose is to lure the user to a malicious site. The document body, though heavily obfuscated, contains the same URL, reinforcing this finding. No scripts were extracted, limiting further analysis of the payload.

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=still+already+yet+exercises+pdf
    • http://files.qqha.com.au/uploads/1/3/1/0/131070207/ec986.pdf
    • http://files.ecosecuresystems.com/uploads/1/3/1/4/131407096/wigakozixeko.pdf
    • http://files.theclaysheep.com/uploads/1/3/2/7/132712199/3205003.pdf
    • http://files.kcrowell.com/uploads/1/3/0/8/130814636/tawagujoj.pdf
    • https://cdn.shopify.com/s/files/1/0431/7901/6360/files/69396340286.pdf
    • https://cdn.shopify.com/s/files/1/0432/6942/3269/files/44007639661.pdf
    • https://cdn.shopify.com/s/files/1/0428/3655/7987/files/8686087734.pdf
    • https://cdn.shopify.com/s/files/1/0430/8919/9268/files/zosibu.pdf
    • https://cdn.shopify.com/s/files/1/0431/5188/4445/files/29458755521.pdf
    • https://cdn.shopify.com/s/files/1/0430/4686/3005/files/65987673535.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/17844710077.pdf
    • https://cdn.shopify.com/s/files/1/0430/6167/4133/files/fugumofateviwudimesamala.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/84312174386.pdf
    • https://cdn.shopify.com/s/files/1/0428/3393/6547/files/rabopip.pdf
    • https://cdn.shopify.com/s/files/1/0429/1143/2857/files/33668667212.pdf
    • https://cdn.shopify.com/s/files/1/0428/2236/9446/files/kumovegugonojime.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/pegumi.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004cda.bin
10fd7daa911e35cec49cf7444956c7be556c9f5a5ccc40c229400d707fb1f028		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4CDA 4996 bytes
font_01_sfnt_off00005def.bin
41682a981cede8204bd3511c1772f065adf2f907cb29f7cdcfbf350f7b0f4c40		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5DEF 9952 bytes
font_02_sfnt_off00008002.bin
0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8002 4324 bytes

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