Malicious PDF — malware analysis report

Static analysis result for SHA-256 c140d3024e9e4f7b…

MALICIOUS

PDF

50.2 KB Created: 2020-07-28 01:05:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 42bc5ee4e95884ae45080ec4739ea036 SHA-1: 77c9950d7359a4ee4106ae5847af55485096d65b SHA-256: c140d3024e9e4f7b33cc0b4e9528195ad36355ced84991a4694d244f8febb160
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 Malicious Link T1059.001 PowerShell

The PDF file contains numerous embedded links, with one heuristic specifically identifying it as a 'PDF_MALICIOUS_REDIRECTOR_LINK' pointing to 'ttraff.com'. Another heuristic flags it as a 'PDF_SEO_LINK_FARM', indicating a large number of external links, many hosted on 'cdn.shopify.com'. The document body appears to be garbled or encoded, but the presence of the title 'Camas hospitalares eletricas manual' suggests a potential lure. The primary attack pattern involves redirecting users through malicious infrastructure.

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=camas+hospitalares+eletricas+manual
    • http://files.thepizzaplaceandmore.com/uploads/1/3/1/4/131483266/8923789.pdf
    • http://files.marchesewrestling.com/uploads/1/3/1/4/131483143/nuganilonav.pdf
    • http://files.paintedponytattoo.com/uploads/1/3/1/3/131379054/3754084.pdf
    • http://files.accessyouranswers.com/uploads/1/3/1/4/131482958/61e2aa4e54ade.pdf
    • http://files.thepizzaplaceandmore.com/upl
    • https://cdn.shopify.com/s/files/1/0434/3142/8248/files/57494985250.pdf
    • https://cdn.shopify.com/s/files/1/0431/7514/9719/files/lomomojubenumoli.pdf
    • https://cdn.shopify.com/s/files/1/0429/1582/3772/files/4358877589.pdf
    • https://cdn.shopify.com/s/files/1/0436/9140/9558/files/24671290572.pdf
    • https://cdn.shopify.com/s/files/1/0430/6219/8425/files/fowugabatetuwume.pdf
    • https://cdn.shopify.com/s/files/1/0437/9102/4280/files/60764211383.pdf
    • https://cdn.shopify.com/s/files/1/0433/4357/7256/files/zapuwizabozilamofupomu.pdf
    • https://cdn.shopify.com/s/files/1/0431/9900/4831/files/pokanopor.pdf
    • https://cdn.shopify.com/s/files/1/0433/6844/8152/files/gonatuposepuluvo.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/bebupikisanomagidilu.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/97697777452.pdf
    • https://cdn.shopify.com/s/files/1/0434/3631/0693/files/35446905504.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/dutevitijenunolekegek.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_off000071a0.bin
8187145963fbf8e0b7977f93bb9cbfc296fb812f6e2b6f40a3c8d31ca5a797a4
pdf-font-stream PDF embedded font (sfnt) at offset 0x71A0 6744 bytes
font_01_sfnt_off00008287.bin
7df903ce6721a521b64bfcca8dbd9f4b191d19176d7f739e04052d94724814d5
pdf-font-stream PDF embedded font (sfnt) at offset 0x8287 5076 bytes
font_02_sfnt_off000093a5.bin
e52660779713c893be9e073b6f9bd861050282c01fc1942d9ea1f12addbaf2f4
pdf-font-stream PDF embedded font (sfnt) at offset 0x93A5 12316 bytes