PDF malware analysis — malicious · 32d42b4f66a7ba6a

MALICIOUS

PDF

36.1 KB Created: 2020-08-01 10:05:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 9a7465a41f44c8c18096c66d541a5f67 SHA-1: e86abd48b3bfd9fa16b51986154e19bdba9e97d8 SHA-256: 32d42b4f66a7ba6a4f5715a15dec1b8f35a0f0c12bc651f1a9abb580d9a53c98

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a critical heuristic firing for a malicious redirector link, which is further supported by a large number of embedded links to various PDF files, many hosted on potentially suspicious domains. The document body, though heavily obfuscated, contains a URL that appears to be a lure for downloading a printer driver. This suggests a phishing or social engineering attack aiming to redirect users to malicious sites.

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=hp+laserjet+1536dnf+mfp+driver
- http://files.brailesshow.com/uploads/1/3/2/3/132303035/gukosi-wuwapoge-torevafugaj-zozinuki.pdf
- http://files.orthodoxservantleaders.com/uploads/1/3/0/8/130873975/dojatizep.pdf
- http://files.palmassweettreats.com/uploads/1/3/1/3/131380467/baxevuxuv.pdf
- http://files.whitehorsevenue.com/uploads/1/3/0/7/130775997/vajadelogivofedem.pdf
- http://files.divinosospiro.org/uploads/1/3/2/7/132741322/tasezaso.pdf
- https://cdn.shopify.com/s/files/1/0434/6842/3334/files/lisuviwanepavubugukur.pdf
- https://cdn.shopify.com/s/files/1/0434/6642/4470/files/modern_combat_5_apk_mania.pdf
- https://cdn.shopify.com/s/files/1/0429/8535/7463/files/wunamojabuneza.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/20745245188.pdf
- https://cdn.shopify.com/s/files/1/0430/9857/0909/files/70875940182.pdf
- https://cdn.shopify.com/s/files/1/0428/0595/2671/files/20249879831.pdf
- https://cdn.shopify.com/s/files/1/0431/6479/5044/files/85098759655.pdf
- https://cdn.shopify.com/s/files/1/0431/8982/9800/files/40004873197.pdf
- https://cdn.shopify.com/s/files/1/0428/1057/2966/files/96348165284.pdf
- https://cdn.shopify.com/s/files/1/0428/9950/5311/files/pisexuzadufudil.pdf
- https://cdn.shopify.com/s/files/1/0431/2206/5557/files/29790624241.pdf
- https://cdn.shopify.com/s/files/1/0430/6403/3429/files/dekajevidatokajadazewu.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_off00004d98.bin` `6950224e32775c546e82a0e517ef25ce045482f93f3d3f8091104627aca8f43c`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x4D98	5780 bytes
`font_01_sfnt_off00006141.bin` `79f49361b56328aa974f9c2348a0b791273881121f8df63067839b46306b7aec`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6141	10044 bytes

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