Malicious PDF — malware analysis report

Static analysis result for SHA-256 f85d1e075b4b7ef4…

MALICIOUS

PDF

43.2 KB Created: 2020-08-31 17:10:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 48d34dd979305e1631dacfbb88bb2664 SHA-1: ab5c1df77e27673e32d6fa5d0669d0dbcd2c8ed1 SHA-256: f85d1e075b4b7ef4fed0c0316414e7d2759ea70f8d160b636cceddfa62173f8c
120 Risk Score

Malware Insights

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

The PDF file contains a deceptive lure related to a 'Messenger apk android' download, which is a common tactic for phishing or malware distribution. It embeds a link that redirects to malicious infrastructure, specifically identified by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The PDF also contains a link farm, as indicated by the PDF_SEO_LINK_FARM heuristic, suggesting an attempt to broaden distribution or mask the malicious intent. The primary malicious IOC is the redirector URL.

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.link/pify?keyword=messenger+apk+android+2.+3.+6
    • https://static.usrfiles.com/ugd/4dd980_6b02d12acbf34df1beee617c22a87c2c.pdf
    • https://static.usrfiles.com/ugd/b8c837_e9e377371a5b4457b6a196d957fd3a1a.pdf
    • https://static.usrfiles.com/ugd/7f16bd_9e0bc14320da44089a43cfd1250a556c.pdf
    • https://static.usrfiles.com/ugd/97493d_7e489190f4d1404c9cfffb312ac9cba1.pdf
    • https://static.usrfiles.com/ugd/5e81b9_7d998874bc1147f19efee9eb24cea41c.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/40133843423.pdf
    • https://cdn.shopify.com/s/files/1/0435/8150/5695/files/degidepatogugoxozuba.pdf
    • https://cdn.shopify.com/s/files/1/0459/9690/0511/files/windows_10_anniversary_update_iso.pdf
    • https://cdn.shopify.com/s/files/1/0432/2482/6014/files/lemala.pdf
    • https://cdn.shopify.com/s/files/1/0430/3824/5017/files/nonoduretemiren.pdf
    • https://static.usrfiles.com/ugd/b8c837_f101c65fa2fe4cafa78c193f6aab79a0.pdf
    • https://static.usrfiles.com/ugd/83d902_9b0cf88190f8426bbaf3953f2ae6c3fe.pdf
    • https://static.usrfiles.com/ugd/b8c837_6946d38991dd4992b14f681500e3a028.pdf
    • https://cdn.shopify.com/s/files/1/0455/6845/8917/files/40118729104.pdf
    • https://cdn.shopify.com/s/files/1/0433/0881/0398/files/16622050576.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_off00006a05.bin
964b721bd77d6a0a0494e6928fc7620c56642adcdca7034ae419a18257a4273f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6A05 5644 bytes
font_01_sfnt_off00007d64.bin
e45c44b45531c98b104a97a3428e107191b1e296a0b414cc38289196401faf4b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7D64 10148 bytes

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