PDF malware analysis — malicious · 904dd90636e25426

MALICIOUS

PDF

42.2 KB Created: 2020-09-08 06:26:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 9e5f6e8ab9122ee54227d6245fa5c7d9 SHA-1: 2dc8ade077d039cc0e7252ebecadff0e96046cd7 SHA-256: 904dd90636e2542699b944b8b5eab2fbf4b593838df2eb60a3091d8b7350fe43

160 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a mass of external links, with one specifically identified as a malicious redirector. The document body, though heavily obfuscated, contains text suggesting a lure related to 'inside job video worksheet answers'. This combination strongly indicates an advance-fee scam or phishing attempt designed to trick users into clicking malicious links.

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.
Advance-fee lottery/parcel scam lure high SE_ADVANCE_FEE_SCAM_LURE

Document contains lottery/beneficiary or prize language together with large-value draft/funds wording and parcel/courier delivery requirements. This is a classic advance-fee fraud document shape.
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.link/wix?keyword=inside+job+video+worksheet+answers
- https://static.usrfiles.com/ugd/6290de_d243e95c6de247bcabc04c15a12dd9ff.pdf
- https://static.usrfiles.com/ugd/db1da1_d909ffb2789541acbbf9687187daca8d.pdf
- https://static.usrfiles.com/ugd/b8c837_b84c6da799b543d1a62975f5d6b26b31.pdf
- https://static.usrfiles.com/ugd/71fd01_6a5f6ef5262b4effbb84ffddc7cbb7c9.pdf
- https://static.usrfiles.com/ugd/067ecb_a28dcf168c5f4f37852e4d93f03a609a.pdf
- https://static.usrfiles.com/ugd/d32f78_64e01878359d4ce9a556a311d09f44f8.pdf
- https://static.usrfiles.com/ugd/18f527_f2037efb3efe48c1a67de4d292031a22.pdf
- https://static.usrfiles.com/ugd/bca722_fced1df9f6ab456fa95708d36b4ddb27.pdf
- https://static.usrfiles.com/ugd/f09a9d_46807413ebe24f0a822a0eee74ad459d.pdf
- https://cdn.shopify.com/s/files/1/0438/6842/2309/files/android_9_pie_update_pixel_2.pdf
- https://cdn.shopify.com/s/files/1/0432/8049/8852/files/xijanawuxezuwasobu.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/21659337375.pdf
- https://cdn.shopify.com/s/files/1/0438/5583/9382/files/android_os_10._0.pdf
- https://cdn.shopify.com/s/files/1/0428/2079/6583/files/rimifimanolaxawizofef.pdf
- https://cdn.shopify.com/s/files/1/0436/0785/1171/files/84250167110.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_off000065f9.bin` `5c34a18c22e2b3870c0c8df992137d470f827be9e78e588fc2838a672d092ef1`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x65F9	5252 bytes
`font_01_sfnt_off000077e2.bin` `ec3591095bed458b630b7ee24a2d8d226ad968edd18f0b1a49536ab9bd07dcf1`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x77E2	10640 bytes

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