MALICIOUS — kukobo.pdf
MALICIOUS — kukobo.pdf is a pdf sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (78/100). 2 of 52 detection engines flagged it, exhibiting 1 ATT&CK technique.
Identification
- SHA-256:
54abc942c43cf9ebbc3d3feaff4865750182296288d28c38f4b00091212d8471 - SHA-1:
4ca9695ee21b3ae2315bf38f5eb42e980180d4c1 - MD5:
26a68b1cee11890970f127b491731484 - ssdeep:
1536:FGFKSAo+hTmnd/WZrqqxMv7V5dtD2/9p75XcFWtX/seSv29r5EjmWW9ll7o:YFKSAo+hTmndOZrDw+b7uotX/seK29ro - TLSH:
T1B738CEF3009ADD8C6A8F6B836EE71154325BC7843136976049C8BA5CD6B86FD7F14A80 - Submitted as: kukobo.pdf
- File type: pdf · Size: 82670 bytes
- Verdict: malicious (78/100)
Detections (2 of 52 engines)
- MalwareAnalyser heuristics (entropy/packer): high-entropy-blob
- Emsisoft (Emergency Kit): PDF.Spam.Heur.1
MITRE ATT&CK
Why this verdict
The malicious score of 78/100 is the fusion of 5 weighted signals:
- Emsisoft (Emergency Kit) flagged PDF.Spam.Heur.1 (rule
PDF.Spam.Heur.1) - engine signal, weight 0.55, confidence 0.85 - MalwareAnalyser heuristics (entropy/packer) flagged high-entropy-blob (rule
high-entropy-blob) - engine signal, weight 0.35, confidence 0.70 - Embedded network infrastructure: https://gettraff.ru/strik?keyword=appcompattextview+cannot+be+cast+to+android.view.viewgroup, https://cdn.shopify.com/s/files/1/0431/7950/7872/files/when_you_are_approaching_a_blind_curve_to_warn_others_that_cannot_see_you_coming.pdf, https://cdn.shopify.com/s/files/1/0484/3097/3080/files/limipilufexanatipuwu.pdf - static signal, weight 0.35, confidence 0.60
- Document active content: uri-action - static signal, weight 0.30, confidence 0.60
- Packing/obfuscation: high-entropy-blob - static signal, weight 0.25, confidence 0.55
Dynamic analysis (windows)
1018 behavior events · 0 ATT&CK techniques · 1 dropped files.
Runtime network
- www.msftconnecttest.com
- s.symcb.com
- rb.symcd.com
- rb.symcb.com
- searchapp.bundleassets.example
- teams.cloud.microsoft
- outlook.office.com
- inference.location.live.net
- outlook.office365.com
- outlook.cloud.microsoft
- x2.c.lencr.org
- ye.c.lencr.org
- yr.c.lencr.org
- staging.to-do.officeppe.com
- m365.cloud.microsoft
- ntp.ubuntu.com
- 192.168.122.112
- 224.0.0.252
- 192.168.122.1
- 192.168.122.255
Dropped files
- root_.cache_dconf_user -
96a296d224f285c67bee93c30f8a309157f0daa35dc5b87e410b78630a09cfc7
Embedded URLs
- https://gettraff.ru/strik?keyword=appcompattextview+cannot+be+cast+to+android.view.viewgroup
- https://cdn.shopify.com/s/files/1/0431/7950/7872/files/when_you_are_approaching_a_blind_curve_to_warn_others_that_cannot_see_you_coming.pdf
- https://cdn.shopify.com/s/files/1/0484/3097/3080/files/limipilufexanatipuwu.pdf
- https://cdn.shopify.com/s/files/1/0434/9424/4516/files/8974164165.pdf
- https://cdn.shopify.com/s/files/1/0499/1631/3768/files/mcgraw_hill_connect_answer_key_spanish.pdf
- https://cdn.shopify.com/s/files/1/0430/1075/2663/files/dawasojuxaxavavanuvopa.pdf
- https://cdn.shopify.com/s/files/1/0428/3174/1095/files/g930_headset_keeps_disconnecting_and_reconnecting.pdf
- https://cdn.shopify.com/s/files/1/0431/9094/3901/files/40936645453.pdf
- https://cdn.shopify.com/s/files/1/0500/2274/4214/files/xamerew.pdf
- https://uploads.strikinglycdn.com/files/679d74ae-52d0-48da-a736-9151b765bf6f/88671747305.pdf
- https://uploads.strikinglycdn.com/files/6705681f-5e4a-44cc-a8df-6a83a2bdb1f3/59251268815.pdf
- https://uploads.strikinglycdn.com/files/982e5eac-7e50-4ce1-81d7-8938ea69a53f/dorefuxafavawewor.pdf
- https://uploads.strikinglycdn.com/files/6e598c94-725a-4e89-a33e-65d775a77d92/dejib.pdf
- https://uploads.strikinglycdn.com/files/9589b595-4265-4802-b733-a472eb3d5c9f/labup.pdf
- https://uploads.strikinglycdn.com/files/db1c69e3-daad-4945-bb48-40a60bef359c/27590112434.pdf
- https://uploads.strikinglycdn.com/files/8eb5bed2-1015-403e-85d1-a70a4691ffae/48498627237.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/
Embedded domains
- gettraff.ru
- cdn.shopify.com
- uploads.strikinglycdn.com
- www.w3.org
- purl.org
- ns.adobe.com
- x2.c.lencr.org
- ye.c.lencr.org
- yr.c.lencr.org
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Analyzed on MalwareAnalyzer by Cyble · Open interactive report