MALICIOUS
160
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
T1059.001 PowerShell
The PDF contains a mass external link farm, with one URL pointing to a known malicious redirector. The document body, though heavily obfuscated, contains the text 'Circle parts worksheet' and the malicious URL, suggesting a lure. The presence of a 'Visible LOLBin command execution instruction' heuristic indicates that the PDF likely contains embedded commands or scripts designed to execute malicious code or redirect the user to further stages of an attack. The primary malicious IOC is the redirector URL.
Heuristics 4
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PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINKPDF 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.
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Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARMSmall 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.
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Visible LOLBin command execution instruction high SE_LOLBIN_RUN_COMMANDDocument contains instructions or visible command text involving Windows script/execution tools such as PowerShell, mshta, cmd, rundll32, or regsvr32
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Embedded URL info EMBEDDED_URLOne 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=circle+parts+worksheet
- http://files.profgeasorb24b.com/uploads/1/3/1/0/131070113/b7de277b0bce7d.pdf
- http://janepo.mjfk.dk/uploads/1/3/1/3/131379362/falezasovimina.pdf
- http://files.byobeez.org/uploads/1/3/0/7/130775023/lepawogoweveguj_jorozen_popejewisidadu.pdf
- https://cdn.shopify.com/s/files/1/0432/8987/0491/files/33519847842.pdf
- https://cdn.shopify.com/s/files/1/0429/0497/7564/files/powershell_replace_text_in_file.pdf
- https://cdn.shopify.com/s/files/1/0433/5563/5880/files/how_to_unfollow_everyone_on_twitter.pdf
- https://cdn.shopify.com/s/files/1/0439/3458/0891/files/fodaxa.pdf
- https://cdn.shopify.com/s/files/1/0431/8914/1664/files/kota_the_friend_birdie_song.pdf
- https://cdn.shopify.com/s/files/1/0431/4290/6007/files/age_of_empire_untuk_android_offline.pdf
- https://cdn.shopify.com/s/files/1/0434/9168/8610/files/60739353893.pdf
- https://cdn.shopify.com/s/files/1/0437/6517/0334/files/l_aveuglement_spirituel_pdf.pdf
- https://cdn.shopify.com/s/files/1/0436/0146/1410/files/86221713141.pdf
- https://cdn.shopify.com/s/files/1/0441/2011/3304/files/62999871748.pdf
- https://cdn.shopify.com/s/files/1/0434/6108/3288/files/aprender_hablar_japones_basico.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.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00006ad1.bin475ca28f21100e6aac4fcfdbec4a4da54c3f15065e3c95bdbec5f8826060cb4d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6AD1 | 4884 bytes |
font_01_sfnt_off00007b82.bin2582bfa19d9f0514e6812732015c3cf6f81f6364a654aeb5260c80db5c2a473c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7B82 | 10192 bytes |
font_02_sfnt_off00009e67.bin9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9E67 | 4324 bytes |
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