PDF malware analysis — malicious · e334faf0d3ce32d7

MALICIOUS

PDF

48.7 KB Created: 2020-08-29 03:59:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 91036f3ca37a9f1ba95f09dfbc6edf41 SHA-1: 83574c720956f7642b3540ebf5c55f6980db09c6 SHA-256: e334faf0d3ce32d798325465b2ed2fa13f59fce20b890f7384445e0b2b57fb90

160 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.001 User Execution: Malicious Link T1059.001 PowerShell

This PDF document contains a lure for a 'beginner flute book pdf' which, upon inspection, redirects to malicious infrastructure. The document also contains a high-risk lure for remote support tools, suggesting a social engineering pretext for further compromise. The embedded link 'https://ttraff.ru/wix?keyword=beginner+flute+book+pdf' is identified as a malicious redirector.

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.
Remote-support tool lure high SE_REMOTE_SUPPORT_LURE

Document instructs the user to install, open, or connect with a remote-support tool such as AnyDesk, TeamViewer, Quick Assist, or ScreenConnect — high-risk in an unsolicited document
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/wix?keyword=beginner+flute+book+pdf
- https://static.usrfiles.com/ugd/b8c837_65e21b207f954b5aa20bf575f0bf44ab.pdf
- https://static.usrfiles.com/ugd/b8c837_a94aac3c002b4c86a93f56b0528afafd.pdf
- https://static.usrfiles.com/ugd/b8c837_1e7ea167dad844d7a45034247fd705cd.pdf
- https://static.usrfiles.com/ugd/b8c837_40de1ed594de4c2d8baf9abd8154e004.pdf
- https://cdn.shopify.com/s/files/1/0434/2746/3324/files/kodi_16.1_jarvis_download_apk.pdf
- https://cdn.shopify.com/s/files/1/0430/8343/2096/files/14123589496.pdf
- https://static.usrfiles.com/ugd/b8c837_99cd530dd41948248b703be9429a89b2.pdf
- https://static.usrfiles.com/ugd/b8c837_e71e2132e20b4d69be56b8fe8620941c.pdf
- https://static.usrfiles.com/ugd/b8c837_7f4329fbca514f19b89026caab24482f.pdf
- https://static.usrfiles.com/ugd/b8c837_97715f0395ef4dd58396046bfa7ab6f4.pdf
- https://static.usrfiles.com/ugd/b8c837_f51b578cdb8a458c946aa13a31110476.pdf
- https://static.usrfiles.com/ugd/b8c837_d76afc95570843bbb83e292015836584.pdf
- https://static.usrfiles.com/ugd/b8c837_5dfcca8b0fd748be8f4577bcde3a3327.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_off000072d6.bin` `b20dbc4645f0aa9ee7d9dd84be6262b1c374e258bef744a4d7e4efbdc0850a18`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x72D6	4956 bytes
`font_01_sfnt_off000083bb.bin` `24e1edb2fd5b28dc9e7f38ad96e11e33b46a1402e9745974f6579162c7e7bc5e`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x83BB	10508 bytes
`font_02_sfnt_off0000a797.bin` `05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xA797	4324 bytes

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