PDF malware analysis — malicious · 54197ccc1ec2a619

MALICIOUS

PDF

44.8 KB Created: 2020-08-23 07:33:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: b6dce9a5b700de9f22170932b0d45108 SHA-1: 535bce423fee446058c6494bbde8fe29d430f14c SHA-256: 54197ccc1ec2a6190864d2e03456c2c42725c5b7eb45faa175f423052facd0de

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a link farm and a critical redirector link pointing to 'https://ttraff.ru/pify?keyword=best+free+chinese+dictionary+android+app'. This suggests the document is designed to lead users to malicious infrastructure, likely for phishing or malware delivery. The ML classifier also strongly indicated maliciousness. No scripts were extracted, limiting the analysis of specific execution behaviors.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

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.ru/pify?keyword=best+free+chinese+dictionary+android+app
- http://files.brushandbranch.co/uploads/1/3/0/7/130740344/2297158.pdf
- http://wusad.beverlymeola.com/uploads/1/3/1/0/131070767/xikafudomomesow.pdf
- http://zuted.bathurst75fc.com.au/uploads/1/3/1/6/131637830/gaminamabineguzi.pdf
- https://cdn.shopify.com/s/files/1/0431/8747/0496/files/bosazoxasoviweropokom.pdf
- https://cdn.shopify.com/s/files/1/0433/5576/6942/files/keuntungan_jadi_local_guide_google_maps.pdf
- https://cdn.shopify.com/s/files/1/0430/7373/2769/files/liviwobutirewerudow.pdf
- https://cdn.shopify.com/s/files/1/0437/2971/5354/files/america_s_test_kitchen_reviews_springform_pan.pdf
- https://cdn.shopify.com/s/files/1/0431/4929/5776/files/33498561749.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/46824776831.pdf
- https://cdn.shopify.com/s/files/1/0429/8443/9971/files/87795191363.pdf
- https://cdn.shopify.com/s/files/1/0437/6395/7914/files/tatowomorekenapatebuze.pdf
- https://cdn.shopify.com/s/files/1/0433/2204/8667/files/96678251943.pdf
- https://cdn.shopify.com/s/files/1/0434/8762/5369/files/zowesoxolinosasixoluku.pdf
- https://cdn.shopify.com/s/files/1/0431/6836/6760/files/way_back_into_love_piano_notes.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_off00006312.bin` `2259385005c4dea7df0f87f851bfe914defccfea4fe582b61da352cfcc589b43`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6312	5148 bytes
`font_01_sfnt_off00007490.bin` `ac5b207a0a7e3685effadcb8e0303a78395f787636c1b86b53eb514d96a93ddb`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7490	10384 bytes
`font_02_sfnt_off0000981e.bin` `d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x981E	4324 bytes

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