PDF malware analysis — malicious · a4c2b015240975e7

MALICIOUS

PDF

59.8 KB Created: 2020-08-18 13:52:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 84daaedcc4fcfce5faa0849fa7f86f9c SHA-1: 146d7d4a7fec768bac9621b47dc15f9cdcfb5876 SHA-256: a4c2b015240975e77396532a3ab19e418381abfb945a60bc9c6c74f69d996444

120 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains embedded links, one of which, https://ttraff.cc/pify?keyword=sql+server+2008+r2+express+iso, is identified as a malicious redirector. The document body, though heavily obfuscated, appears to reference software downloads, suggesting a lure to trick users into clicking the malicious link. The presence of a large number of external PDF links also indicates a link farm, likely for SEO poisoning or to distribute malicious content.

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=sql+server+2008+r2+express+iso
- http://zitifedak.gpanm.org/uploads/1/3/0/7/130738779/nalemaxubix.pdf
- http://files.childrensbridgefoundation.com/uploads/1/3/0/7/130740465/673926fd732.pdf
- http://lujez.communityproblemsolvingday.com/uploads/1/3/1/3/131398140/0b38e8cb.pdf
- http://files.thelifelinechurch.org/uploads/1/3/0/7/130740069/8181346.pdf
- https://cdn.shopify.com/s/files/1/0437/7706/5121/files/61835285824.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/42539854631.pdf
- https://cdn.shopify.com/s/files/1/0430/6229/6725/files/11181265335.pdf
- https://cdn.shopify.com/s/files/1/0430/8421/8532/files/11222627598.pdf
- https://cdn.shopify.com/s/files/1/0432/6876/7907/files/amarok_v6_specs.pdf
- https://cdn.shopify.com/s/files/1/0434/7356/7901/files/95752049854.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/32773531818.pdf
- https://cdn.shopify.com/s/files/1/0431/7963/8942/files/vigufixenijobof.pdf
- https://cdn.shopify.com/s/files/1/0431/8180/1629/files/84512078302.pdf
- https://cdn.shopify.com/s/files/1/0437/2761/8209/files/18606822339.pdf
- https://cdn.shopify.com/s/files/1/0436/2820/0096/files/84658487958.pdf
- https://cdn.shopify.com/s/files/1/0432/8954/2809/files/sogofukos.pdf
- https://cdn.shopify.com/s/files/1/0433/4754/2175/files/suvaxafow.pdf
- https://cdn.shopify.com/s/files/1/0433/9456/4250/files/educational_psychology_slavin.pdf
- https://cdn.shopify.com/s/files/1/0434/6917/6985/files/sakakoroviwoxijes.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_off00009f6c.bin` `61fa9ecf8b9c73816dc82c35332529a78f3ce0e747485b30d3c074ddc4eefdb9`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x9F6C	5428 bytes
`font_01_sfnt_off0000b209.bin` `4016c81d4e1b5b09e1d73ceb233603a883fee71119e705fac103f9da43cfbfb4`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xB209	15204 bytes

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