PDF malware analysis — malicious · ba335fda1ffd1321

MALICIOUS

PDF

65.8 KB Created: 2020-08-04 20:52:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 79dd40084e9a9e89d66e07519a61a646 SHA-1: 8f003fbc2be807b1aedd177e8bd0cb0598b6a224 SHA-256: ba335fda1ffd132167c8288b8e15b94db0063510c9ddb1a579cfcd995c3a5e25

120 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains multiple embedded URLs, with one identified as a malicious redirector. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK specifically flags the URL https://ttraff.ru/pify?keyword=anglo+norman+period+notes+pdf as malicious. Additionally, the PDF_SEO_LINK_FARM heuristic indicates a large number of external links, suggesting an attempt to manipulate search engine results or distribute content widely. The document body, though heavily obfuscated, contains the malicious URL, reinforcing the attack pattern.

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.ru/pify?keyword=anglo+norman+period+notes+pdf
- http://files.resonant-bodywork.com/uploads/1/3/1/4/131437930/xalozabajuzo_fazigelidumimit_kesufalurud.pdf
- http://files.mjmfund.org/uploads/1/3/2/6/132682090/lisavi.pdf
- http://fopemo.ncwiba.org.uk/uploads/1/3/1/3/131380429/22a939387056.pdf
- http://files.chushinaikikai.com/uploads/1/3/0/7/130739758/danidab_winolovukamupes_mirakusesab_goluwubevaxiwa.pdf
- https://cdn.shopify.com/s/files/1/0429/9161/6153/files/61436434652.pdf
- https://cdn.shopify.com/s/files/1/0435/2602/9463/files/didodak.pdf
- https://cdn.shopify.com/s/files/1/0428/9314/8313/files/78110629633.pdf
- https://cdn.shopify.com/s/files/1/0429/5124/5987/files/xaperitozafetusozuz.pdf
- https://cdn.shopify.com/s/files/1/0429/4836/2399/files/mokuxipoguxatel.pdf
- https://cdn.shopify.com/s/files/1/0432/6300/0734/files/20665143406.pdf
- https://cdn.shopify.com/s/files/1/0431/6043/6887/files/82566385287.pdf
- https://cdn.shopify.com/s/files/1/0443/6181/0076/files/bookkeeping_and_accounting_download.pdf
- https://cdn.shopify.com/s/files/1/0436/9963/4326/files/barojizuvixejuruwuxof.pdf
- https://cdn.shopify.com/s/files/1/0437/3551/5290/files/vukirulovuni.pdf
- https://cdn.shopify.com/s/files/1/0431/1502/0448/files/76250769548.pdf
- https://cdn.shopify.com/s/files/1/0440/1430/5430/files/software_architecture_books.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/lapifobojupe.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_off0000c4d7.bin` `67bd6821a42c6e0ed403e52a2c8db1c6e88e47332973fd600833280589795f16`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xC4D7	5348 bytes
`font_01_sfnt_off0000d6f0.bin` `db29288b57ce736af3f6551f8225c037c0488dec516849e5747c5f3946e2b2d1`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xD6F0	10264 bytes

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