PDF malware analysis — malicious · 1e1c340bbb3a136c

MALICIOUS

PDF

47.0 KB Created: 2020-08-31 05:26:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: e1bfd4a0bc277afb1886dc02422d21bd SHA-1: a3a8a663022111aaf75db93be6829a8f138c82d8 SHA-256: 1e1c340bbb3a136c87f5129163a8e00ba6eaa77dde555594a8a1987f0d99a0a6

154 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a link to a known malicious redirector, ttraff.com, which is disguised with the keyword 'iron and magic'. The document body also contains this keyword and the redirector URL, suggesting a social engineering lure. The ML classifier strongly flagged this PDF as malicious, and the presence of a link farm further supports malicious intent. No scripts were extracted, but the primary attack vector appears to be a malicious link embedded within the document.

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.com/wix?keyword=iron+and+magic
- https://cdn.shopify.com/s/files/1/0427/8986/3580/files/samumuvepulimopoledologon.pdf
- https://cdn.shopify.com/s/files/1/0430/8071/2346/files/12903175161.pdf
- https://cdn.shopify.com/s/files/1/0430/5335/1066/files/surah_al_mulk_in_english.pdf
- https://cdn.shopify.com/s/files/1/0448/4956/1757/files/socialization_definition_sociology.pdf
- https://static.usrfiles.com/ugd/b8c837_d31d2ca7403044f786081ee576260a64.pdf
- https://cdn.shopify.com/s/files/1/0437/1221/7241/files/the_love_letter_cathleen_schine.pdf
- https://cdn.shopify.com/s/files/1/0436/7391/1449/files/52712038134.pdf
- https://cdn.shopify.com/s/files/1/0430/4479/8613/files/24124250991.pdf
- https://cdn.shopify.com/s/files/1/0430/4266/8698/files/24753169259.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_off0000687f.bin` `295861aa5575edbd232381f0e826aa73ca42f8cd07a5926a749f15ba90ee94e8`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x687F	4988 bytes
`font_01_sfnt_off00007951.bin` `80964325946fade6a82e595c2e063f84a3cf43a2b5ce3bece890add72e0dc0f2`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7951	9684 bytes
`font_02_sfnt_off00009aa5.bin` `c9557d91917e40dbb2ce09b7ef560a04a9a832ffe2ebcac6b50408a58351272e`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x9AA5	16092 bytes

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