Malicious PDF — malware analysis report

Static analysis result for SHA-256 ed0e65fe3d668453…

MALICIOUS

PDF

54.2 KB Created: 2020-07-30 05:02:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6a38a0ce23f6a4c30175664eb2dc2438 SHA-1: b30e019ff1ad07c0e08dc8e7083f79e9ef1b1bd1 SHA-256: ed0e65fe3d668453b8d76980df1c739d6765e4d2754eac4259fc09169954b3ad
128 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF file contains embedded JavaScript and multiple external links, with a critical heuristic identifying it as a malicious redirector link farm. The primary lure appears to be a 'Facebook ads guide 2020 pdf', directing users to a malicious URL via a redirector. The presence of embedded JavaScript suggests potential for further malicious actions, though its specific function is not detailed here. The file's structure and link farm indicate a phishing or redirection attempt.

Heuristics 4

  • 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 JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • 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.com/pify?keyword=facebook+ads+guide+2020+pdf
    • http://files.nhlbc.org/uploads/1/3/1/3/131381772/suwijatugoruj_kelozi_tadetowog_vikafegumen.pdf
    • http://files.autokonnect.com/uploads/1/3/1/4/131437655/fce6a285e421260.pdf
    • http://files.greshamvisuals.com/uploads/1/3/0/7/130774990/misizepaputez.pdf
    • https://cdn.shopify.com/s/files/1/0429/6579/4969/files/13470397792.pdf
    • https://cdn.shopify.com/s/files/1/0431/3455/0177/files/86085897829.pdf
    • https://cdn.shopify.com/s/files/1/0434/5564/3813/files/nofixovededajumasipilufam.pdf
    • https://cdn.shopify.com/s/files/1/0433/4475/6901/files/99786063147.pdf
    • https://cdn.shopify.com/s/files/1/0428/9026/4742/files/suzoxurazewodule.pdf
    • https://cdn.shopify.com/s/files/1/0434/5148/2278/files/21382272428.pdf
    • https://cdn.shopify.com/s/files/1/0437/3001/0273/files/xorogisugupamatopeb.pdf
    • https://cdn.shopify.com/s/files/1/0432/0067/6003/files/56129839283.pdf
    • https://cdn.shopify.com/s/files/1/0434/3801/4616/files/lotilapegalej.pdf
    • https://cdn.shopify.com/s/files/1/0439/5221/0088/files/zedotadeb.pdf
    • https://cdn.shopify.com/s/files/1/0436/8980/3941/files/pugiza.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.

FilenameKindSourceSize
font_00_sfnt_off00009605.bin
22e6642f253e3ed92c8df8f864f1a6a81a5551ca8395339153e1727a1a307fb6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9605 5324 bytes
font_01_sfnt_off0000a829.bin
d5f7c4c86f78d477e3b264166c120dd0e9d96a85bf1d998e7c04485f644cb5e4		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA829 10408 bytes

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