PDF malware analysis — malicious · 2868968550867c9b

MALICIOUS

PDF

45.3 KB Created: 2020-08-30 21:15:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: b1acdb52f46891571957c2ec2865be38 SHA-1: 244c0a6a9a8a8f97aea8258daab5fa0b0a286e9a SHA-256: 2868968550867c9bc708a796009f4fca92a73a2812d86ecdfad19d87e6cfc6cf

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/wix?keyword=god+bless+you+mr+rosewater+pdf'. Additionally, it features a large number of external PDF links, characteristic of a link farm, with the first URL being 'https://cdn.shopify.com/s/files/1/0428/9835/8432/files/zugazad.pdf'. The ML classifier also strongly flagged this PDF as malicious. The document body, though heavily obfuscated, contains the same URLs, reinforcing the malicious intent.

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/wix?keyword=god+bless+you+mr+rosewater+pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/zugazad.pdf
- https://cdn.shopify.com/s/files/1/0434/2772/5477/files/rupokomujimelapamis.pdf
- https://cdn.shopify.com/s/files/1/0429/9980/8149/files/14567573161.pdf
- https://cdn.shopify.com/s/files/1/0429/7749/3146/files/bhagavad_gita_by_swami_chidbhavananda.pdf
- https://cdn.shopify.com/s/files/1/0434/0865/4492/files/computer_memory_and_its_types.pdf
- https://static.usrfiles.com/ugd/b8c837_7ebabf572332487ba4a4f7712ca3cfcc.pdf
- https://static.usrfiles.com/ugd/b8c837_3b48bc90b04548f5aeea4302140446c2.pdf
- https://static.usrfiles.com/ugd/a298ce_655d4ca92197493fa225d7dcb575564b.pdf
- https://static.usrfiles.com/ugd/b8c837_cde69cece01944fc9a72117725dfb31a.pdf
- https://static.usrfiles.com/ugd/b8c837_f6a87fb6912d40de9e8e8e6d477cc261.pdf
- https://static.usrfiles.com/ugd/5438e3_07a3e5b3f9bd482190d03d44c1e53d69.pdf
- https://static.usrfiles.com/ugd/b8c837_9e1c61c51be84153849c08e21797f6cc.pdf
- https://static.usrfiles.com/ugd/b8c837_d35862a6fabe4deaa45b4555f8f02bd8.pdf
- https://static.usrfiles.com/ugd/e2c6c1_ad0cd77fc162417582fdba029b3591d0.pdf
- https://static.usrfiles.com/ugd/9b33c5_10049e13f0e34ad1a47ec1e41cac6432.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 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off000064b2.bin` `3725d16bbe9e94af3cd071e7fffffeed588154183d7b7f31f977da21a1b19b73`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x64B2	5280 bytes
`font_01_sfnt_off000076c4.bin` `ace254e623a9a53381f0cfea25a3eebaf413f7b62f1d421936949a2f2c1b354a`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x76C4	10436 bytes
`font_02_sfnt_off000099d4.bin` `cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x99D4	4324 bytes

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