PDF malware analysis — malicious · bd26da66307680c8

MALICIOUS

PDF

35.3 KB Created: 2020-09-03 01:41:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 8034414e1d70cd83a7b6884e8479e03e SHA-1: 8491b047b801c7a54ae1bee678c2f627c0a5a1cc SHA-256: bd26da66307680c80d08487c87ad1e178f08cab171949fde62b2cea431820ad9

148 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a lure for an 'annual leave form' and embeds multiple external links. One of these links, 'https://ttraff.cc/pify?keyword=annual+leave+form+nz', is identified as a malicious redirector. The document body, though heavily obfuscated, contains this URL and other benign-looking PDF filenames, suggesting a phishing or social engineering attempt to redirect the user to malicious content. The presence of a link farm further supports a malicious intent to distribute links to potentially harmful sites.

Heuristics 5

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.
Callback phishing phone lure medium SE_CALLBACK_LURE

Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns
Fake invoice / payment lure low SE_INVOICE_LURE

Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
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.cc/pify?keyword=annual+leave+form+nz
- https://static.usrfiles.com/ugd/277b62_9ccf29ea9e024a2bbac0bdf8c4416c4a.pdf
- https://static.usrfiles.com/ugd/5be868_48696515e88c4eaba5f3ffae18023eee.pdf
- https://static.usrfiles.com/ugd/2f07a1_7828c2ccd2894e5a97b4b6462108798a.pdf
- https://cdn.shopify.com/s/files/1/0433/9662/8641/files/food_court_design_guidelines.pdf
- https://cdn.shopify.com/s/files/1/0434/6904/5926/files/donepig.pdf
- https://static.usrfiles.com/ugd/756799_99daaec24e0a4665a4d844e3dd7b62d8.pdf
- https://static.usrfiles.com/ugd/b8c837_2fb3e57e73b34600926a1f02be3caadf.pdf
- https://static.usrfiles.com/ugd/6350c7_2eabb5d5fcb9497bb431e7cfbd255ce2.pdf
- https://cdn.shopify.com/s/files/1/0432/5870/8118/files/disney_princess_twin_carriage_bed.pdf
- https://cdn.shopify.com/s/files/1/0430/7537/1162/files/xonumeraj.pdf
- https://cdn.shopify.com/s/files/1/0429/2381/9164/files/eating_attitudes_test_eat-26_scoring_and_interpretation.pdf
- https://cdn.shopify.com/s/files/1/0437/6982/3381/files/labakopabugu.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_off00004db1.bin` `6563e78f7b4900cc9d86ea6aac8752616a04c8204bca152ac9b4c22668aab45f`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x4DB1	4832 bytes
`font_01_sfnt_off00005e1d.bin` `953bc87ec16f42aa97df1c87ad9bd07313db559e847e81fb358aec5d5cb6212c`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5E1D	10152 bytes

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