PDF malware analysis — malicious · ecb1f422fb42febb

MALICIOUS

PDF

63.5 KB Created: 2020-08-28 11:21:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 8a85d21d2f0a9f9655dfeb1a76777112 SHA-1: 10c740490c079e0084d1a41581bdac6d4f41b1ff SHA-256: ecb1f422fb42febbc791258f99bc1e5468841baee784b7f4aeb01178f41099be

120 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=rediger+un+paragraphe+argumentatif'. The document body, though heavily obfuscated, contains this URL and text suggesting a lure related to writing. The presence of a link farm heuristic further indicates malicious intent to distribute links. The file is identified as a PDF, and the primary malicious IOC is the redirector URL.

Heuristics 3

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.
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=rediger+un+paragraphe+argumentatif
- http://files.rwaconsultants.net/uploads/1/3/1/3/131384306/tugubu-nakixazuni-zijusaxofopudak-rukipiresa.pdf
- http://files.406cavoodle.com/uploads/1/3/1/3/131379183/xovapir_lafipesexigexen_ladit_sawiwul.pdf
- http://files.amydethick.com.au/uploads/1/3/0/7/130775260/9a654869700c92.pdf
- http://fusiso.lm1a.net/uploads/1/3/1/6/131607163/7486250.pdf
- https://cdn.shopify.com/s/files/1/0433/1828/0357/files/pathfinder_2e_bestiary_download.pdf
- https://cdn.shopify.com/s/files/1/0434/9054/1733/files/sukujuvixakeponemoxenuki.pdf
- https://cdn.shopify.com/s/files/1/0431/7144/6948/files/evidence_based_medicine_straus.pdf
- https://cdn.shopify.com/s/files/1/0435/3651/5224/files/98768973972.pdf
- https://cdn.shopify.com/s/files/1/0431/3363/2661/files/zijowuta.pdf
- https://cdn.shopify.com/s/files/1/0432/1712/5536/files/bearing_design_handbook.pdf
- https://cdn.shopify.com/s/files/1/0433/7002/1014/files/xodanomonevosuju.pdf
- https://cdn.shopify.com/s/files/1/0431/4438/0578/files/fevalinoxijogupele.pdf
- https://cdn.shopify.com/s/files/1/0434/8215/3112/files/mixexobezipepupug.pdf
- https://cdn.shopify.com/s/files/1/0432/5317/0334/files/62747153148.pdf
- https://cdn.shopify.com/s/files/1/0431/7678/8117/files/japulavubo.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
`stream_006_off0000d3fd.bin` `4f0b26008b90d6096406e79f907abf99c59db3e140cd451f6c3a1325a3d0a38c`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0xD3FD	17632 bytes
`font_00_sfnt_off00009783.bin` `ab89396687fed18098711928df3e046af4003937160f9f0f7b3a9c8ed126b633`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x9783	5252 bytes
`font_01_sfnt_off0000a93a.bin` `e15a61f8058422d3ec0c40fdc680279239210932ee5c487ae2e88b78b6ca2665`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xA93A	14228 bytes

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