PDF malware analysis — malicious · edc398f4067cc001

MALICIOUS

PDF

44.2 KB Created: 2020-08-08 12:52:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: b854cb5da46b0dfa071c09c6f501a958 SHA-1: ce23c58278c27a1d9ed729d040861f7b8f7a946a SHA-256: edc398f4067cc0015922a3a54a65e37ac70d29725f38972c0d9841caef5d19c8

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a prominent link that redirects to a malicious URL, identified by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body, though partially corrupted, suggests a lure related to a 'footaction job application'. The PDF_SEO_LINK_FARM heuristic indicates the presence of numerous external links, likely for SEO manipulation or to distribute the malicious payload. The ML_NYX_PDF_MALICIOUS score further supports the malicious classification.

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.com/pify?keyword=footaction+job+application+pdf
- http://files.faithfullyfitforlife.com/uploads/1/3/0/8/130873717/eff2be7c47.pdf
- http://files.greatcowbasic.com/uploads/1/3/0/7/130739369/xufojajufeb_letiwo_mofirebo.pdf
- http://files.storeoutsideyourdoor.com/uploads/1/3/0/7/130776120/wowitamaga.pdf
- http://files.etudist.com/uploads/1/3/1/6/131636601/kudazibob-gatexa-rulobonawetun.pdf
- https://cdn.shopify.com/s/files/1/0431/7449/4369/files/38331536754.pdf
- https://cdn.shopify.com/s/files/1/0431/5637/3670/files/340712897.pdf
- https://cdn.shopify.com/s/files/1/0434/3539/3180/files/23621944883.pdf
- https://cdn.shopify.com/s/files/1/0430/9496/6436/files/22346456638.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/45292738862.pdf
- https://cdn.shopify.com/s/files/1/0430/8451/3434/files/php_aes_encryption.pdf
- https://cdn.shopify.com/s/files/1/0437/0504/1051/files/mavuzaverutesisoxavok.pdf
- https://cdn.shopify.com/s/files/1/0429/4190/7110/files/lifinabijokukixuk.pdf
- https://cdn.shopify.com/s/files/1/0434/5207/2088/files/muxegufolijos.pdf
- https://cdn.shopify.com/s/files/1/0433/8617/5651/files/72327890336.pdf
- https://cdn.shopify.com/s/files/1/0448/4556/4065/files/candlestick_chart_patterns_explained.pdf
- https://cdn.shopify.com/s/files/1/0435/9503/8877/files/rinovemibotipil.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_off000063e4.bin` `a2a77958f8748064a3266c3d3e19025e518c4c4bd2bce9ad30dd6e0590ca0b47`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x63E4	5048 bytes
`font_01_sfnt_off00007527.bin` `9522fd6a8f3eeb22dbb799046fc556d838aca6cbfbe45d4ed01b53874ef73b3b`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7527	15016 bytes

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