Malicious PDF — malware analysis report

Static analysis result for SHA-256 f32610b1440f043c…

MALICIOUS

PDF

52.4 KB Created: 2020-08-09 16:10:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 737d8894205c36d4c814cb5e39c5376f SHA-1: e67fbf682caf0fa158348dd80571c324c413eed9 SHA-256: f32610b1440f043c92976c1f2796b092e07bafa209d70d388194f6d402ce5bcb
120 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.com/pify?keyword=iluminacion+teatral+pdf'. Additionally, it exhibits a PDF link farm heuristic, embedding numerous external PDF links, with 'https://cdn.shopify.com/s/files/1/0430/4781/3269/files/gafokovivifogafede.pdf' being the first identified. The document body contains garbled text but includes the malicious URL and several benign-looking Shopify URLs, suggesting a lure to a malicious site.

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=iluminacion+teatral+pdf
    • http://files.anchorseminary.org/uploads/1/3/1/8/131871466/nefegutobus.pdf
    • http://rodud.stephanielin.co/uploads/1/3/1/3/131384424/wisufarakerapelega.pdf
    • http://files.wornworx.com/uploads/1/3/1/4/131437770/fugekatukos.pdf
    • http://files.danthefan.co.uk/uploads/1/3/1/3/131384468/37a25af.pdf
    • https://cdn.shopify.com/s/files/1/0430/4781/3269/files/gafokovivifogafede.pdf
    • https://cdn.shopify.com/s/files/1/0432/5015/5688/files/54973397839.pdf
    • https://cdn.shopify.com/s/files/1/0432/8354/6267/files/nalarizoparoxopopaw.pdf
    • https://cdn.shopify.com/s/files/1/0434/2949/4936/files/52759196432.pdf
    • https://cdn.shopify.com/s/files/1/0433/1290/6405/files/98046785241.pdf
    • https://cdn.shopify.com/s/files/1/0433/0913/8075/files/zerabulikonutelawusuroxox.pdf
    • https://cdn.shopify.com/s/files/1/0433/8358/6974/files/bimarubewize.pdf
    • https://cdn.shopify.com/s/files/1/0437/9305/5904/files/75186590402.pdf
    • https://cdn.shopify.com/s/files/1/0432/1725/6605/files/curso_de_ingles_gratis_y_audio.pdf
    • https://cdn.shopify.com/s/files/1/0432/5202/3458/files/rupofo.pdf
    • https://cdn.shopify.com/s/files/1/0434/4345/4102/files/macroeconomics_3rd_edition_krugman.pdf
    • https://cdn.shopify.com/s/files/1/0433/8660/1635/files/44235892089.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_off000083de.bin
5a554fb0c4536aeb99b8b82ed27a835b833d8b5e60679dfe7eb791e649fa6fa3
pdf-font-stream PDF embedded font (sfnt) at offset 0x83DE 4940 bytes
font_01_sfnt_off00009480.bin
a4788bf78e5239cf8127b86653100a104b10d7a9384d0fc44d42a19aebe65236
pdf-font-stream PDF embedded font (sfnt) at offset 0x9480 10064 bytes
font_02_sfnt_off0000b6e7.bin
0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333
pdf-font-stream PDF embedded font (sfnt) at offset 0xB6E7 4324 bytes