Malicious PDF — malware analysis report

Static analysis result for SHA-256 e90dfe40c6eb3715…

MALICIOUS

PDF

44.5 KB Created: 2020-08-02 08:57:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 60805681b05b52dd7d3e2d3d4ffbef39 SHA-1: bd113b0802435cc8ca91575ad3bccc192e3b96d6 SHA-256: e90dfe40c6eb37155babe7c0ac5939738307ca1c68b1a9f7656790b22dc0e4d7
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many pointing to Shopify domains, which is indicative of a link farm. One of the primary links, 'https://ttraff.cc/pify?keyword=usb+xstaf+explorer', is flagged as a malicious redirector. This suggests the document is designed to drive traffic to malicious infrastructure, likely for phishing or SEO poisoning attacks. No scripts were extracted, limiting the analysis of direct payload execution.

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=usb+xstaf+explorer
    • http://files.mrtoddsclassroom.com/uploads/1/3/1/0/131070493/a2cea6a430.pdf
    • http://files.janpeterdegraaff.com/uploads/1/3/1/3/131380521/pimuvuvebadan.pdf
    • http://files.heidiwillbanks.com/uploads/1/3/0/7/130775834/8486592.pdf
    • http://files.kimsoapia.com/uploads/1/3/0/7/130738513/c705818.pdf
    • https://cdn.shopify.com/s/files/1/0436/3508/1374/files/80242886385.pdf
    • https://cdn.shopify.com/s/files/1/0437/8961/5266/files/winisexavimuzasonolafedos.pdf
    • https://cdn.shopify.com/s/files/1/0429/9338/5633/files/87482019767.pdf
    • https://cdn.shopify.com/s/files/1/0439/8641/9870/files/xonefiziniwi.pdf
    • https://cdn.shopify.com/s/files/1/0437/0425/4615/files/75969433191.pdf
    • https://cdn.shopify.com/s/files/1/0429/9830/0823/files/saronesusuz.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/48054684450.pdf
    • https://cdn.shopify.com/s/files/1/0432/6588/4323/files/juremepuzipak.pdf
    • https://cdn.shopify.com/s/files/1/0430/9463/8749/files/36553644503.pdf
    • https://cdn.shopify.com/s/files/1/0430/8343/2096/files/89346923386.pdf
    • https://cdn.shopify.com/s/files/1/0430/6426/2818/files/80654330560.pdf
    • https://cdn.shopify.com/s/files/1/0437/4393/6673/files/96848664591.pdf
    • https://cdn.shopify.com/s/files/1/0431/4012/0733/files/pukabumavozovakatubelake.pdf
    • https://cdn.shopify.com/s/files/1/0434/8480/7334/files/fafozitu.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_off00006ff4.bin
5f00604bab2c363a6c9dff12ed2b353416be97a77c34b32b18257b0c63ea739e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6FF4 5096 bytes
font_01_sfnt_off0000815c.bin
216df0d218e4012c7c12f7d1cec7aca398e95bc21319345a23deb7f78d506033		 pdf-font-stream PDF embedded font (sfnt) at offset 0x815C 10744 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.