PDF malware analysis — malicious · 8a2652c6cc6d191e

MALICIOUS

PDF

53.5 KB Created: 2020-08-11 19:27:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: b84abcf326cedc9c76908dad6168ccbc SHA-1: 9534621b988caa04fda355d14d4b44450fd8375f SHA-256: 8a2652c6cc6d191e874e4cc8d8f8c2920662e23c4ac9261ef0a5bcaa4c197f27

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF was flagged as malicious by a machine learning classifier and contains a high number of embedded links. One critical heuristic identified a link to a known malicious redirector, ttraff.cc, which likely serves as a lure for further malicious activity. The document body contains garbled text but also includes the same suspicious URL and several Shopify URLs, suggesting a link farm or content-loading mechanism.

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.cc/pify?keyword=botany+for+gardeners+3rd+edition+pdf+free
- http://files.globalimagephotography.net/uploads/1/3/1/4/131453214/eeaf8a929b6b.pdf
- http://files.balancedwellnessnutrition.com/uploads/1/3/0/8/130814459/6764586.pdf
- http://files.riverlandstuart.com/uploads/1/3/2/8/132814400/dc94789fd4.pdf
- https://cdn.shopify.com/s/files/1/0435/7318/2625/files/54191572052.pdf
- https://cdn.shopify.com/s/files/1/0444/5303/6199/files/ielts_speaking_test_part_2.pdf
- https://cdn.shopify.com/s/files/1/0437/2345/6661/files/10284709612.pdf
- https://cdn.shopify.com/s/files/1/0431/5031/1579/files/exception_handling_mechanism_in_java.pdf
- https://cdn.shopify.com/s/files/1/0437/8476/5591/files/taxutunemodego.pdf
- https://cdn.shopify.com/s/files/1/0430/7084/9181/files/lemewemopinoxuru.pdf
- https://cdn.shopify.com/s/files/1/0439/2789/6219/files/chemistry_notes_for_class_11_download.pdf
- https://cdn.shopify.com/s/files/1/0436/0631/1070/files/makirafoselewed.pdf
- https://cdn.shopify.com/s/files/1/0429/2981/5705/files/rejidibidowujoxilavodab.pdf
- https://cdn.shopify.com/s/files/1/0428/3754/1031/files/43175453322.pdf
- https://cdn.shopify.com/s/files/1/0431/6856/3351/files/xomewakawepubi.pdf
- https://cdn.shopify.com/s/files/1/0437/4963/8295/files/19635347324.pdf
- https://cdn.shopify.com/s/files/1/0439/2180/1371/files/essentials_of_general_surgery_5th_edition.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_off0000927e.bin` `033723b095992e964705d0cdd50697ea66b00a13fddac8057cceb7f5a79adb73`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x927E	5492 bytes
`font_01_sfnt_off0000a544.bin` `131a77677cdc2e982267a263c5face981e91e4ef3cb3f3bebe478e9eb64d6f19`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xA544	10376 bytes

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