PDF malware analysis — malicious · a3a1090f1b1f78b2

MALICIOUS

PDF

35.5 KB Created: 2020-08-01 05:06:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 3fb7a39d5e247408fc592f33cf4b2725 SHA-1: 0465b31637e318d0280b61143e47b5831459f6eb SHA-256: a3a1090f1b1f78b2ce9b86f876e8b0bb588c6ddf4cb1d0d7f3867307d9a31ff9

160 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of embedded links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector. The heuristic 'PDF_MALICIOUS_REDIRECTOR_LINK' indicates this is a primary threat. The 'SE_PASSWORD_ARCHIVE_LURE' heuristic suggests the document might be a precursor to a password-protected archive, which is a common tactic to bypass gateway security. The document body itself is heavily obfuscated and contains the malicious URL.

Heuristics 4

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.
Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE

Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
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.com/pify?keyword=cradle+of+persia
- http://files.swainsborojaycees.com/uploads/1/3/0/8/130873945/nerizesonamaxepavit.pdf
- http://files.rockysplaceinc.com/uploads/1/3/0/7/130775435/2200201.pdf
- http://files.slikslymusic.com/uploads/1/3/0/9/130969459/6920549.pdf
- http://files.drawingonmusic.com/uploads/1/3/1/0/131070044/mupesibudunug-womexezaluzo.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/banefidofekadozimodomi.pdf
- https://cdn.shopify.com/s/files/1/0432/8790/4422/files/dawiloruxutofisorolobojos.pdf
- https://cdn.shopify.com/s/files/1/0431/5316/2394/files/tedigotorekona.pdf
- https://cdn.shopify.com/s/files/1/0430/3850/7169/files/mujuxafesuliwuk.pdf
- https://cdn.shopify.com/s/files/1/0436/0660/5987/files/texepozodezawof.pdf
- https://cdn.shopify.com/s/files/1/0428/7902/5318/files/bovunekovizaze.pdf
- https://cdn.shopify.com/s/files/1/0432/2469/4939/files/97216324016.pdf
- https://cdn.shopify.com/s/files/1/0437/2670/0696/files/41905957528.pdf
- https://cdn.shopify.com/s/files/1/0432/2725/0850/files/kovilizoju.pdf
- https://cdn.shopify.com/s/files/1/0431/7259/3832/files/20509547643.pdf
- https://cdn.shopify.com/s/files/1/0430/0016/8597/files/volixijudinepekegufegesif.pdf
- https://cdn.shopify.com/s/files/1/0427/4618/3847/files/gatotew.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_off00004df2.bin` `1ec7c6c4d9c3aaa038d0a59920e65d74e00ec3c3394775f7f8cd0c463b3551d6`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x4DF2	4940 bytes
`font_01_sfnt_off00005ec9.bin` `e4b5024482eac5df8db41f53d9e08994e51918bfc38d84139cf7305cafe2e789`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5EC9	10168 bytes

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