PDF malware analysis — malicious · b0c1c8edfab8926a

MALICIOUS

PDF

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

MD5: 16c9a95396961e515bfa0173de2cf37c SHA-1: bc643ef35e0a97f2894b5021a8bc2ddb3a5776d5 SHA-256: b0c1c8edfab8926a0aa0a592ace004a7e3f764bb55556de44f5b69087156884e

152 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 likely used to obscure the final destination of the malicious payload. The document body and embedded URLs suggest a lure related to converting webpages to PDF, aiming to trick users into clicking the malicious link. The ML classifier strongly supports the malicious verdict.

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/pify?keyword=application+convert+webpage+to+pdf
- http://files.studentfinanceboard.com/uploads/1/3/0/7/130739190/tasobot.pdf
- http://files.hoffmanhornetband.com/uploads/1/3/0/7/130740385/3516679.pdf
- http://files.jenzgemzshop.com/uploads/1/3/0/8/130813489/de106.pdf
- https://cdn.shopify.com/s/files/1/0430/9896/4117/files/tavetitekamojuxike.pdf
- https://cdn.shopify.com/s/files/1/0431/2698/0765/files/ditunofivo.pdf
- https://cdn.shopify.com/s/files/1/0427/5548/9948/files/64171471179.pdf
- https://cdn.shopify.com/s/files/1/0441/1500/1496/files/2576849946.pdf
- https://cdn.shopify.com/s/files/1/0430/4073/5381/files/44750282222.pdf
- https://cdn.shopify.com/s/files/1/0430/3729/4754/files/temopokej.pdf
- https://cdn.shopify.com/s/files/1/0428/5313/8591/files/97869509358.pdf
- https://cdn.shopify.com/s/files/1/0437/7971/9330/files/rafijeruguj.pdf
- https://cdn.shopify.com/s/files/1/0437/2329/2822/files/82362042644.pdf
- https://cdn.shopify.com/s/files/1/0432/6280/4136/files/lujaxax.pdf
- https://cdn.shopify.com/s/files/1/0436/3816/1561/files/teori_behaviorisme_watson.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_off000062a4.bin` `c3395d3b23b54d5cca59e61fe74e56718ebd58172fe3ae77036b1bc5ba36f833`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x62A4	5424 bytes
`font_01_sfnt_off00007530.bin` `51b4e1399e255603b3318573316ec4e7f43f505e214c52299e8ae72795a75c97`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7530	9932 bytes

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