Malicious PDF — malware analysis report

Static analysis result for SHA-256 ca2eb0c5bd950f1e…

MALICIOUS

PDF

47.2 KB Created: 2020-08-14 10:21:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 036aebfe0197eb675296aadc7f7e6743 SHA-1: 9c6a3942ca141efcbed5c279068c29361c3e76f4 SHA-256: ca2eb0c5bd950f1ed7bb567f4273b89ffdbed5fc6c9cbcbb3c21977a96094fa4
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a large number of embedded links, many pointing to a redirector service known for malicious activity. The document body, though partially corrupted, contains the URL 'https://ttraff.ru/pify?keyword=agenda+mercantil+2019+pdf+descargar', which is also flagged as a malicious redirector. This suggests the document's primary purpose is to redirect users to malicious sites, likely for phishing or malware distribution.

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.ru/pify?keyword=agenda+mercantil+2019+pdf+descargar
    • http://files.mrbuttsushistory.com/uploads/1/3/0/7/130739232/189207833ddad8.pdf
    • http://files.sbcopywriting.com/uploads/1/3/2/7/132740218/644292.pdf
    • http://files.biggsbassethounds.com/uploads/1/3/1/8/131857071/84fb7a2093dbc.pdf
    • https://cdn.shopify.com/s/files/1/0431/9277/8916/files/25886280147.pdf
    • https://cdn.shopify.com/s/files/1/0428/8918/3398/files/paxaniweselamo.pdf
    • https://cdn.shopify.com/s/files/1/0430/3316/5986/files/dazujimaxevemisutani.pdf
    • https://cdn.shopify.com/s/files/1/0433/0258/4480/files/lijemedaximubijar.pdf
    • https://cdn.shopify.com/s/files/1/0431/9812/0094/files/66664379105.pdf
    • https://cdn.shopify.com/s/files/1/0434/9231/1206/files/jafuno.pdf
    • https://cdn.shopify.com/s/files/1/0436/0696/6429/files/78976703849.pdf
    • https://cdn.shopify.com/s/files/1/0431/0558/3266/files/dimefawivenolofukagep.pdf
    • https://cdn.shopify.com/s/files/1/0433/5868/3291/files/92713184770.pdf
    • https://cdn.shopify.com/s/files/1/0431/3153/5524/files/kemili.pdf
    • https://cdn.shopify.com/s/files/1/0437/4819/6506/files/axiology_philosophy.pdf
    • https://cdn.shopify.com/s/files/1/0428/0057/8723/files/bls_provider_manual_2020.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/70945418412.pdf
    • https://cdn.shopify.com/s/files/1/0433/8499/5991/files/79535463788.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_off000067df.bin
7874df213b523d798829983ef1f013c4fd026d6fb7dc7a581ad54e4f0009982e
pdf-font-stream PDF embedded font (sfnt) at offset 0x67DF 5624 bytes
font_01_sfnt_off00007ae8.bin
9ec91b6fa108622cb5059316fb351089913f67267289f52c891419de82eb30cb
pdf-font-stream PDF embedded font (sfnt) at offset 0x7AE8 11352 bytes
font_02_sfnt_off0000a1b5.bin
9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2
pdf-font-stream PDF embedded font (sfnt) at offset 0xA1B5 4324 bytes