PDF malware analysis — malicious · ec9ecf602b7f645c

MALICIOUS

PDF

37.5 KB Created: 2020-08-31 00:45:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 2e224985e8891edeec5fccec9bf46722 SHA-1: 5868f61be5b263196f1fe4e7f45f852370de572a SHA-256: ec9ecf602b7f645c027461e8a7b3f1bbc23e7236d57263c2c993d0abe6cf161a

152 Risk Score

Malware Insights

MITRE ATT&CK

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

The PDF contains multiple embedded links, including one pointing to a known malicious redirector infrastructure at `https://ttraff.com/wix?keyword=galanz+user+manual`. The ML classifier also strongly indicated maliciousness. This suggests the document is designed to trick users into visiting malicious sites, likely for phishing or malware distribution.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

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.
Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL

The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
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/wix?keyword=galanz+user+manual
- https://static.usrfiles.com/ugd/b8c837_d3e1e33ee8e147dd8f8349ff164afa72.pdf
- https://static.usrfiles.com/ugd/5ed537_beb7fab445bc45f6a4d5ecf24b0f1481.pdf
- https://static.usrfiles.com/ugd/ce14f3_2bc5659c438b4bbf9dc761648b7269e7.pdf
- https://static.usrfiles.com/ugd/ba3095_a647e7c7c15a4da08429b63d94516e08.pdf
- https://static.usrfiles.com/ugd/7ff653_4c1579dc9ec74e02b2b7fc81d2c7c12a.pdf
- https://cdn.shopify.com/s/files/1/0435/6092/7393/files/tatadukisabakes.pdf
- https://cdn.shopify.com/s/files/1/0432/5382/5694/files/factorio_solar_panel_blueprint.pdf
- https://cdn.shopify.com/s/files/1/0438/6498/1664/files/ideology_of_pakistan_in_urdu.pdf
- https://cdn.shopify.com/s/files/1/0430/5689/0013/files/bifiludotebelivitan.pdf
- https://cdn.shopify.com/s/files/1/0429/8421/0583/files/mibijasofadavewuvo.pdf
- https://cdn.shopify.com/s/files/1/0431/5276/9192/files/16556170446.pdf
- https://cdn.shopify.com/s/files/1/0437/5989/4689/files/38731573004.pdf
- https://cdn.shopify.com/s/files/1/0431/6341/8784/files/banchory_primary_school_uniform.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_off00005435.bin` `973d8a6b4ade4ad8c9b3207e3d6cb1f1d44ddda55e62a824165be73c07fd159f`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5435	4912 bytes
`font_01_sfnt_off000064dd.bin` `af78af3558a5b4fd11a872ab89875d7fac60e97731b468326c9a681d55254bd3`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x64DD	10676 bytes

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