PDF malware analysis — malicious · 1dfc21c0c188fea4

MALICIOUS

PDF

52.4 KB Created: 2020-09-01 09:28:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: b3883b6b545ef94b35739de3a1109c0e SHA-1: d88b21053d969809a6ec3cab11a454a87e7982bb SHA-256: 1dfc21c0c188fea4d8cc34c338b7f47f8c3549e797e3ea3439fe926486fa3ba9

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF was flagged for containing a malicious redirector link, which is a common technique for phishing or malware delivery. The PDF also contains a large number of external links, many pointing to Shopify, which is unusual and suggests a link farm or SEO manipulation tactic. No scripts were extracted, but the presence of the malicious redirector is a strong indicator of 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.me/pify?keyword=sap+cloud+platform+backend+service%2528+beta%2529
- https://cdn.shopify.com/s/files/1/0433/1687/1333/files/werererefidunopepu.pdf
- https://cdn.shopify.com/s/files/1/0428/2574/4540/files/2001_maniacs_full_movie_free.pdf
- https://cdn.shopify.com/s/files/1/0438/0380/3808/files/common_statistical_tests.pdf
- https://cdn.shopify.com/s/files/1/0429/8512/8090/files/gre_analytical_writing_bible.pdf
- https://cdn.shopify.com/s/files/1/0430/2359/7725/files/49564840324.pdf
- https://static.usrfiles.com/ugd/1df9ea_bfa7c3ce5007467297a8b7dad8b55039.pdf
- https://static.usrfiles.com/ugd/b8c837_a7318f5f86d74ce6b90b071dcefc3fb6.pdf
- https://static.usrfiles.com/ugd/b8c837_03a38d3ee55f42c0881c854eeebf817f.pdf
- https://static.usrfiles.com/ugd/5cf23b_3c405d0773284b4b9d22b1d90f1dd415.pdf
- https://static.usrfiles.com/ugd/dd6616_a4a81a570f0743e99d6087597cbce441.pdf
- https://static.usrfiles.com/ugd/b8c837_cdafefd7f2a64ac0a739e61e44f10ec9.pdf
- https://static.usrfiles.com/ugd/fafc38_2c91ac2754b4457e89d6948ee6283411.pdf
- https://static.usrfiles.com/ugd/05900a_84e9070b4f814e37aa2bb80217aa64fc.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 4

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off00006a5c.bin` `5e292a1c43551e70dccdef6754261b27578490034f887c27843fc904d784e0ca`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6A5C	5704 bytes
`font_01_sfnt_off00007dab.bin` `2a2fcb1f1f4cdcaea5b01a7bab2ed86b3e2162d096dc3732253cf338d18733bc`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7DAB	10120 bytes
`font_02_sfnt_off0000a080.bin` `bf8f9ece8d9d74ce2d7a98a07ee1bb8f4056faf702b3b1702118181e85f1b939`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xA080	16312 bytes
`font_03_sfnt_off0000b60b.bin` `b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xB60B	4324 bytes

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