PDF malware analysis — malicious · 5161594b85a5f92a

MALICIOUS

PDF

40.2 KB Created: 2020-09-02 00:20:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 3b44ccf561f2bbf68fe97313eb84ee38 SHA-1: 2149e87f269cd80f3982845e3cf4c0c18b87bfac SHA-256: 5161594b85a5f92a9c10ffdfd7b3a5fbf1cf48fe40c5a3d40302ce0246320c22

140 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a lure related to an 'EMI calculator excel sheet with date' and embeds multiple links. One of these links, https://ttraff.cc/wix?keyword=emi+calculator+excel+sheet+with+date, is identified as a malicious redirector. The presence of a 'Macro/content-enable lure' heuristic suggests the document is designed to trick users into enabling content, which is a common tactic for delivering further malicious payloads.

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.
Macro/content-enable lure medium SE_ENABLE_LURE

Document instructs the user to enable macros or editing — a common technique used by malware droppers to bypass Office macro security settings
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.cc/wix?keyword=emi+calculator+excel+sheet+with+date
- https://static.usrfiles.com/ugd/5de1df_2209750eb46443dba127d0e11a00cad8.pdf
- https://static.usrfiles.com/ugd/b8c837_5a77fbba861a436f9ccbe225fd91bce4.pdf
- https://static.usrfiles.com/ugd/696b8a_fa7397ed5aa94e51b264e4ec94b38fc4.pdf
- https://static.usrfiles.com/ugd/37321e_d6024b4eeb10412fbad792aa81368e9b.pdf
- https://static.usrfiles.com/ugd/3f4b99_be8cc244c8704e89a495d300cba54fb0.pdf
- https://static.usrfiles.com/ugd/4dd980_b7d51996ca4c4b429ab426ec828e45a3.pdf
- https://cdn.shopify.com/s/files/1/0436/0113/3731/files/vewim.pdf
- https://cdn.shopify.com/s/files/1/0434/4958/1724/files/lojudek.pdf
- https://cdn.shopify.com/s/files/1/0433/7447/7464/files/abas_3_manual.pdf
- https://cdn.shopify.com/s/files/1/0462/6943/1959/files/extracting_dna_from_banana_lab_report.pdf
- https://cdn.shopify.com/s/files/1/0431/4831/2740/files/numeros_en_ingles_pronunciacion_y_escritura.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/61238086127.pdf
- https://cdn.shopify.com/s/files/1/0434/0026/5878/files/koxanazijadulej.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_off00005190.bin` `c9512a6abff8c46c30facc75ca1300333fb3a84158c8466e140ede21e599e6fb`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5190	5072 bytes
`font_01_sfnt_off000062dd.bin` `a7893550fb6264d9204c4e2503951e6ab49cd225b776c964700175a8c91acc8c`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x62DD	10496 bytes
`font_02_sfnt_off000085e5.bin` `d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x85E5	4324 bytes

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