PDF malware analysis — malicious · 79ff7637f45e07bf

MALICIOUS

PDF

56.7 KB Created: 2020-09-16 22:41:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: a9ad239bfc8412e8271a2856eabaaf25 SHA-1: 055d935965134e39eec42ca4ad5ef712a0595e0a SHA-256: 79ff7637f45e07bf4ff683fff9eeb9dbf78f0cbf61fd3b5f5e208d19497b94c6

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains numerous embedded links, with one specifically pointing to a known malicious redirector. The document body, though malformed, contains text suggesting a lure related to 'where the wild things are full pdf' and includes the malicious URL. This indicates a social engineering attempt to redirect users to malicious infrastructure, likely for malware distribution or phishing. The presence of multiple PDF links and a malicious redirector strongly suggests a link farm or SEO poisoning attack.

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.link/wix?keyword=where+the+wild+things+are+full+pdf
- http://files.arisefromtheashes.com/uploads/1/3/1/6/131606295/mopiguwele-wopapolufapol-zoxabiv.pdf
- http://files.la-fll.org/uploads/1/3/1/0/131070313/2597918.pdf
- http://danolab.greatgorillarun.org/uploads/1/3/0/7/130775373/7547220.pdf
- http://files.smashmouthsweetsllc.com/uploads/1/3/2/6/132695470/kagideriterujo_bajixadukugufot.pdf
- https://cdn.shopify.com/s/files/1/0431/7272/4897/files/garodegat.pdf
- https://cdn.shopify.com/s/files/1/0431/5604/5981/files/elementary_lesson_plan_template_editable.pdf
- https://cdn.shopify.com/s/files/1/0433/3764/6245/files/53598975655.pdf
- https://cdn.shopify.com/s/files/1/0438/9067/1771/files/bamorusetosesurap.pdf
- https://cdn.shopify.com/s/files/1/0434/4601/0022/files/82822803122.pdf
- https://cdn.shopify.com/s/files/1/0429/5501/4298/files/muputamureg.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/84770620138.pdf
- https://76b16949-3664-49eb-a989-f700e9f83932.filesusr.com/ugd/10cedf_3f587ef79b80496d9bfa78e7707e6420.pdf?index=true
- https://9fdaf96f-9d23-440e-9e39-b04b540d41fc.filesusr.com/ugd/834936_288187f7ed0544c8a57e151898c12c75.pdf?index=true
- https://70959d93-e771-4b22-ac6e-dce310db0d9e.filesusr.com/ugd/daca0d_6f7227a8b5f04410a7281d9d6c52b6e9.pdf?index=true
- 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_off00009ef0.bin` `6b6f218f9c10f29061856eeb249220c8bd96de11d60820fc4bbdc4ee04233c50`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x9EF0	5408 bytes
`font_01_sfnt_off0000b171.bin` `9c591c2736b2e18a275ccf0002f2481f3efd2475353eff8dbb0280f3fae28629`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xB171	10696 bytes

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