PDF malware analysis — malicious · 7ba948cdc06998ea

MALICIOUS

PDF

42.1 KB Created: 2020-08-09 01:02:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: d787abfe9209fed205bd956bfbd9a863 SHA-1: 49810a04d951fb726b30f85c5a8ecd9acc771137 SHA-256: 7ba948cdc06998eaa8b71f7088d036445f8231c92e31ba3f7ed18a4bb4c7acca

152 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a link farm and a critical redirector link to 'ttraff.cc', indicating a phishing or malicious redirection attempt. The document body, though malformed, contains text related to 'difference between amortization and depreciation pdf', likely a lure. The ML classifier strongly flagged this PDF as malicious. No scripts were extracted, but the presence of multiple embedded URLs and the redirector link suggest the primary goal is to lead the user to a malicious site.

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=difference+between+amortization+and+depreciation+pdf
- http://waluninu.globalweatherclimatecenter.com/uploads/1/3/1/3/131380213/38fa42b5a43.pdf
- http://files.jenniferseasonsbooks.com/uploads/1/3/1/8/131858540/3396266.pdf
- http://batin.flametreemalawi.com/uploads/1/3/0/8/130873851/239d908f8.pdf
- https://cdn.shopify.com/s/files/1/0432/3622/9277/files/58788035954.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/vawis.pdf
- https://cdn.shopify.com/s/files/1/0433/4131/6249/files/87533126954.pdf
- https://cdn.shopify.com/s/files/1/0434/6360/6429/files/73077865696.pdf
- https://cdn.shopify.com/s/files/1/0433/5822/4549/files/11517268763.pdf
- https://cdn.shopify.com/s/files/1/0429/3482/9223/files/derepujemepagad.pdf
- https://cdn.shopify.com/s/files/1/0432/3796/5979/files/29286829679.pdf
- https://cdn.shopify.com/s/files/1/0431/2072/2080/files/dictionary_of_synonyms_and_antonyms_in_english.pdf
- https://cdn.shopify.com/s/files/1/0429/8833/9361/files/36514539459.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_off000064c5.bin` `c381bd0d632867e05c52352e28caf759a5311355e1eff27c074815b30b2a68a6`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x64C5	5372 bytes
`font_01_sfnt_off00007715.bin` `d9ba50000dcdcb7d6801a2369e54fc9e772fe66c2ff6d7c0d8d23d19d7dce622`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7715	10612 bytes

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