PDF malware analysis — malicious · 8dfcad5e2e741188

MALICIOUS

PDF

43.5 KB Created: 2020-09-08 15:17:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 6a521b463ac19058a468e7a99b405664 SHA-1: 77d8d69ba95a3c6f581edd03b1292cc945aef4cf SHA-256: 8dfcad5e2e74118820a6888e2fc1494a2aecf9cb836f637ff0406aec27ee2cea

120 Risk Score

Malware Insights

MITRE ATT&CK

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

The PDF file contains a link farm and a specific redirector URL, indicating a lure to malicious infrastructure. The document body, though heavily obfuscated, contains the same redirector URL and references a 'study guide', suggesting a social engineering pretext. The primary malicious URL is https://ttraff.link/pify?keyword=book+of+esther+study+guide, which is likely used to redirect the user to a further stage of the attack.

Heuristics 3

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.
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/pify?keyword=book+of+esther+study+guide
- https://static.usrfiles.com/ugd/e2b09b_beea12fd0a64474cb09c2ccb907d364b.pdf
- https://static.usrfiles.com/ugd/89c6ad_30a277e8cee34511b5ab6354e2f509a9.pdf
- https://static.usrfiles.com/ugd/f8de3e_733df87dd51a4f08b78f1189a8a7ddd7.pdf
- https://static.usrfiles.com/ugd/277b62_ca03d694da654f7985ad7705d262e640.pdf
- https://static.usrfiles.com/ugd/b18e4d_d942b6d74b374056a8ac3f0ffa0834e3.pdf
- https://static.usrfiles.com/ugd/20d83a_c68139ac3ed94e908418ffff4fb4d432.pdf
- https://static.usrfiles.com/ugd/bb05c1_fda09015a72a436bb16a141e7d394a20.pdf
- https://static.usrfiles.com/ugd/7be1cd_d18a1d83a87749799668f3ffbc682f93.pdf
- https://static.usrfiles.com/ugd/bb3bf9_1743df82de974fcc8d9213024e70c4e1.pdf
- https://static.usrfiles.com/ugd/b8c837_b9f4a6ee314c4b06980cee929825461b.pdf
- https://static.usrfiles.com/ugd/c1615c_9521caf8eb8146cd8820fd50e7862102.pdf
- https://static.usrfiles.com/ugd/83d902_563548f42b9842d8b1c054d81181d1fd.pdf
- https://cdn.shopify.com/s/files/1/0440/3871/7605/files/pimiwerezezifixep.pdf
- https://cdn.shopify.com/s/files/1/0435/8832/1435/files/rusasukexokojisenewotovow.pdf
- https://cdn.shopify.com/s/files/1/0431/3455/0177/files/4057632802.pdf
- https://cdn.shopify.com/s/files/1/0440/1732/0094/files/cisco_cyber_ops_final_exam_answers.pdf
- https://cdn.shopify.com/s/files/1/0431/2426/1018/files/gezinaritasumudib.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_off00006bb3.bin` `411c09c742549fab6c9aae7a637ee8e7c5ac4387651662dfae3c9aee1883eebb`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6BB3	5144 bytes
`font_01_sfnt_off00007d44.bin` `09627ad07db35452e50ff52ccf184f46348b70e1b73f476aa6c3beef85d116c5`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7D44	10404 bytes

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