PDF malware analysis — malicious · 5282747a4afd48fb

MALICIOUS

PDF

38.7 KB Created: 2020-09-04 20:10:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 43f617fbd335ca09e3425e8ddb011407 SHA-1: a7c807d965962879050c5777bbdd815e4af26783 SHA-256: 5282747a4afd48fba8dfe2ea5fec0eb773474335d4f56e493f268b6b7b0c26f6

128 Risk Score

Malware Insights

MITRE ATT&CK

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

The PDF file contains multiple embedded links, with one specifically pointing to a known malicious redirector. The presence of a 'download button' heuristic and the document body text mentioning 'Zebra designer 2 free' suggests a lure to trick the user into clicking the malicious link. The file also contains a large number of external PDF links, indicating a link farm strategy. The primary malicious IOC is the redirector 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.
Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON

Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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/wix?keyword=zebra+designer+2+free
- https://static.usrfiles.com/ugd/5e8de6_5881cece9c8e4a76b1bd24a9da4984bf.pdf
- https://static.usrfiles.com/ugd/fd7405_75e9620f71a24e5ca5f433dad2d478a8.pdf
- https://static.usrfiles.com/ugd/b8c837_5428e0bdcff242df9558c1964139c32d.pdf
- https://static.usrfiles.com/ugd/eaf48f_e8e7c5a1ea02482db8d6a41ef10af219.pdf
- https://cdn.shopify.com/s/files/1/0440/5955/8053/files/zawezavikamebuwawota.pdf
- https://cdn.shopify.com/s/files/1/0432/0080/7067/files/retrenchment_letter_south_africa_template.pdf
- https://cdn.shopify.com/s/files/1/0429/4128/4518/files/batepowupifusufomomo.pdf
- https://static.usrfiles.com/ugd/70094d_5267d6af8d2844ebb0f8aa9f0c6ffecd.pdf
- https://static.usrfiles.com/ugd/e2c250_def8e617261e4281960b0884d61414cf.pdf
- https://static.usrfiles.com/ugd/9a242c_e30bd859c03347b8bc3572cc7d7384d8.pdf
- https://static.usrfiles.com/ugd/e2c6c1_59009c621fed4b5db40bcf464c94c98a.pdf
- https://static.usrfiles.com/ugd/d48fe3_ea892db6f0514aefadbc2b4ace2a54ec.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_off00004d22.bin` `0fd00a6e3f9ac2359ebf180267d6671c8daef1efaf8ff187b3316678d6e63114`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x4D22	4872 bytes
`font_01_sfnt_off00005dae.bin` `e1f777183f321a1af9a9acc5d8bb81fe30dd11a28e48e075469ec64f141a1c27`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5DAE	10088 bytes
`font_02_sfnt_off00008035.bin` `9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8035	4324 bytes

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