PDF malware analysis — malicious · 7eace24620f3a6fd

MALICIOUS

PDF

39.3 KB Created: 2020-09-04 22:07:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 9f549d7a0f076b3063e6f1315b2867e9 SHA-1: 3d85dbbf3191788dbade6b956f5abf613b38fbd8 SHA-256: 7eace24620f3a6fd97ffb392bdba6aecc16f8316b9b8c5e247a77712d11ee10b

154 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF document contains a heuristic firing for linking to known malicious redirector infrastructure, specifically the URL https://ttraff.club/wix?keyword=v+letter+whatsapp+status+video++free. It also exhibits characteristics of a PDF link farm, containing numerous external PDF links. The document body, though heavily obfuscated, contains the same redirector URL and several benign-looking PDF links, suggesting a deceptive lure.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

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.
Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL

The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
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.club/wix?keyword=v+letter+whatsapp+status+video++free
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://static.usrfiles.com/ugd/7598fa_ac4ea7059f8d4f649bee935a16552857.pdf
- https://static.usrfiles.com/ugd/74e9cf_068e5de6963440ad83693538fed69131.pdf
- https://static.usrfiles.com/ugd/d94ae5_d37be82f061c424a9f40bc3eb74ee4f5.pdf
- https://static.usrfiles.com/ugd/12dc78_19f4dbf384314f2aba898fa8900b5170.pdf
- https://static.usrfiles.com/ugd/3649d2_5de2cdbdd8a1420fb38d54622a78ba76.pdf
- https://static.usrfiles.com/ugd/b8c837_eb2c15093a80485a9d851f595bd3b2e4.pdf
- https://static.usrfiles.com/ugd/2b25b5_fdea84722c634c9499a09946f9c13411.pdf
- https://static.usrfiles.com/ugd/bcfc12_8601ec29242c485a89d5efbc178b6c4d.pdf
- https://static.usrfiles.com/ugd/b8c837_a8977a81fa1544d79f2289a7fe1f5aff.pdf
- https://static.usrfiles.com/ugd/f34323_ef6202868d9d4e089c753acf8de4e9fb.pdf
- https://static.usrfiles.com/ugd/61f964_4f3eb9e9d8074fcc8bbecb6269c07456.pdf
- https://static.usrfiles.com/ugd/384ea4_fc288fc74a3648f8b7d89e5267431598.pdf
- https://static.usrfiles.com/ugd/dcf9ad_f1c3ee25b7724aaeaae941704489abd4.pdf
- https://static.usrfiles.com/ugd/2c608b_6f1fd489838e499687a332c57118a418.pdf
- https://static.usrfiles.com/ugd/72b0e7_f934d7a4294a4474827a749247081237.pdf
- https://static.usrfiles.com/ugd/2813e2_3b23f56241ea40eba40199311d87a3c5.pdf
- https://static.usrfiles.com/ugd/e73fea_95c2504b8a9e4de991476bd63a9489f5.pdf
- https://static.usrfiles.com/ugd/610d21_4461d6fb426446208ec751235b0462f4.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/
- http://scripts.sil.org/OFL

Extracted artifacts 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off00004cb0.bin` `5e6e887072d0d9c69c637c9a97fff3e2be74c78104067182dc94e07b7ef93018`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x4CB0	5248 bytes
`font_01_sfnt_off00005e96.bin` `afbf364675f99997ef1f1d39c548b90771c3d8c5861bce11fdc6f870993fa8c3`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5E96	2424 bytes
`font_02_sfnt_off0000681b.bin` `470902e3175e6b758c53b44f87cdca77923f87dfdd0698b0af164b1c4ca4cbe9`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x681B	12588 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.