PDF malware analysis — malicious · 38e47ef68a96771d

MALICIOUS

PDF

46.6 KB Created: 2020-09-03 08:45:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 9dc242b9c85e24cf0dc88246b399b9db SHA-1: 3aeb2be5f16ea51820072b609dccd5dbc9afd371 SHA-256: 38e47ef68a96771d08219e19063b8cb28ca22b9a31887cd271d746c1791940cb

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a link farm and a malicious redirector URL, indicating a phishing or redirection attempt. The document body, though heavily obfuscated, contains text related to 'CRS reporting requirements Singapore' and the malicious URL, suggesting a lure. The presence of a malicious redirector and a link farm points towards an attempt to drive traffic to malicious infrastructure.

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=crs+reporting+requirements+singapore
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/dogazuzotefoninu.pdf
- https://cdn.shopify.com/s/files/1/0428/4933/7507/files/13693666507.pdf
- https://cdn.shopify.com/s/files/1/0434/2392/4376/files/vurotexezofukimigamijiri.pdf
- https://cdn.shopify.com/s/files/1/0428/0241/3735/files/popubu.pdf
- https://cdn.shopify.com/s/files/1/0429/1988/7001/files/36285358371.pdf
- https://cdn.shopify.com/s/files/1/0437/2856/8471/files/centripetal_force_lab_report_sources_of_error.pdf
- https://cdn.shopify.com/s/files/1/0435/0912/1184/files/nimategekeveku.pdf
- https://cdn.shopify.com/s/files/1/0433/3672/8726/files/alert_after_form_submit_jquery.pdf
- https://cdn.shopify.com/s/files/1/0431/6938/2568/files/mawaf.pdf
- https://cdn.shopify.com/s/files/1/0437/7044/5982/files/fishing_barents_sea_crab_guide.pdf
- https://cdn.shopify.com/s/files/1/0433/5930/5880/files/facebook_marketing_blueprint.pdf
- https://cdn.shopify.com/s/files/1/0435/2085/2122/files/ccleaner_min_ph.pdf
- https://cdn.shopify.com/s/files/1/0429/4351/2732/files/50718812730.pdf
- https://cdn.shopify.com/s/files/1/0433/6379/5096/files/sejuwuju.pdf
- https://cdn.shopify.com/s/files/1/0432/9901/2766/files/topapidasumasedopokigilam.pdf
- https://cdn.shopify.com/s/files/1/0433/4390/4927/files/xujomesomegasigobug.pdf
- https://cdn.shopify.com/s/files/1/0432/3350/9534/files/mazanedemoluvolereni.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_off0000776d.bin` `e65cc6e45a8dcd6cfeb7793589342a38def13e047f3c9cf147ed211feb38c44f`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x776D	5140 bytes
`font_01_sfnt_off000088ca.bin` `4c4fd34ff49480c85f4acfcbafe1b8e1677c8fd4954a75cceca2508c8722a2b9`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x88CA	10700 bytes

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