PDF malware analysis — malicious · 162d24a38a41fe75

MALICIOUS

PDF

33.7 KB Created: 2020-08-15 08:43:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: e17395d0af14f24c8fb6df92d8d11baf SHA-1: a6f2ef49edb5efc71a1842040698b198d681d558 SHA-256: 162d24a38a41fe75433b231ff3bf652f04b61fbcf2c60cf40bbac08446f82b1c

154 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a link to a known malicious redirector, traff.cc, which is likely part of a phishing or scam campaign. The document body, though heavily obfuscated, contains text suggesting it is an 'order form' and includes the malicious URL. The presence of numerous external PDF links, many hosted on Shopify, suggests a link farm used to distribute malicious content or for SEO manipulation.

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.cc/pify?keyword=affy+tapple+order+form
- http://files.ps195magnet.org/uploads/1/3/0/7/130739027/70851e18.pdf
- http://files.cmgaesthetics.com/uploads/1/3/2/7/132712096/5658648.pdf
- http://files.moesplace.us/uploads/1/3/0/7/130738875/zutizak-wikuriku.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0428/8898/6787/files/best_magazine_design.pdf
- https://cdn.shopify.com/s/files/1/0438/5934/5573/files/xigafuk.pdf
- https://cdn.shopify.com/s/files/1/0428/9105/1161/files/42709889339.pdf
- https://cdn.shopify.com/s/files/1/0429/7133/2767/files/atomic_alarm_clock.pdf
- https://cdn.shopify.com/s/files/1/0430/1085/0979/files/66811432790.pdf
- https://cdn.shopify.com/s/files/1/0455/5482/7429/files/most_common_english_phrases.pdf
- https://cdn.shopify.com/s/files/1/0438/3509/7245/files/21506178733.pdf
- https://cdn.shopify.com/s/files/1/0429/8535/7463/files/nier_automata_mods.pdf
- https://cdn.shopify.com/s/files/1/0430/7386/3842/files/92255939575.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 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off000047d1.bin` `0abe2ef9d04c38bfbaf8e9862306c748c252454197deeb0957541b2b9674729c`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x47D1	5100 bytes
`font_01_sfnt_off00005918.bin` `38d2950ca1ec9e4bb170182563a16961f12d12c9b14ef82ecc4c45a12b3c6604`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5918	9824 bytes

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