PDF malware analysis — malicious · fcad156b4910e25b

MALICIOUS

PDF

47.2 KB Created: 2020-08-09 20:45:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 9842d3e0e7d252c0eb71a61bd3733d62 SHA-1: b9780c8de87d33bb80a4d0953dc1379a94691266 SHA-256: fcad156b4910e25b69e70e9ef0fdc99ba84107ee14914aec8f421521ef6a972f

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF was flagged by a machine learning classifier and contains numerous embedded links. One critical heuristic identified a link to a known malicious redirector service, ttraff.com, which is likely used to obscure the final malicious destination. Another critical heuristic indicates a link farm, with many links pointing to Shopify domains, suggesting an attempt to leverage legitimate platforms for hosting malicious content. The document body itself contains garbled text and embedded URLs, reinforcing the malicious nature of the document.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

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=al+koran+pdf
- http://gotoravep.jesmicjewelry.com/uploads/1/3/1/4/131409090/febenoboxow-puzojopugoro.pdf
- http://files.feathersalliance.com/uploads/1/3/1/6/131606492/rixik_joxawobife_kofido_xogixo.pdf
- http://files.findingspecies.org/uploads/1/3/2/8/132814196/nafepitor.pdf
- http://files.diegobardonephotographer.com/uploads/1/3/0/8/130814935/1817324.pdf
- http://wexopak.notsuchsecretlife.com/uploads/1/3/1/4/131453574/4490120.pdf
- https://cdn.shopify.com/s/files/1/0434/6570/3590/files/pdf_to_word_apk.pdf
- https://cdn.shopify.com/s/files/1/0434/7510/7992/files/ub_04_form_instructions.pdf
- https://cdn.shopify.com/s/files/1/0428/2023/9519/files/marcadores_de_aneuploidia.pdf
- https://cdn.shopify.com/s/files/1/0427/9474/6023/files/95272329394.pdf
- https://cdn.shopify.com/s/files/1/0428/0903/2863/files/maxidekatiwixutilanu.pdf
- https://cdn.shopify.com/s/files/1/0431/6997/2392/files/11018562016.pdf
- https://cdn.shopify.com/s/files/1/0432/0614/8255/files/jatonelanilavave.pdf
- https://cdn.shopify.com/s/files/1/0431/0374/8260/files/ximasedulexibe.pdf
- https://cdn.shopify.com/s/files/1/0428/9868/6111/files/bulimazenik.pdf
- https://cdn.shopify.com/s/files/1/0431/0204/4316/files/cazadores_de_sombras_los_origenes_google_drive.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.

Filename	Kind	Source	Size
`font_00_sfnt_off00007ae2.bin` `a0911c457af5759f1e26d0282e4deb4fe4c7ac06181473ae14e6082160325fa4`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7AE2	4908 bytes
`font_01_sfnt_off00008ba3.bin` `8f02e57e63bbd4bc58a5d69124938de4ffa00da5fd79232ffa3d0e2fe1160721`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8BA3	10676 bytes

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