General
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Target
file.zip
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Size
156KB
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Sample
230327-jp31kscd46
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MD5
e332603f908c72cff39a81db5a409694
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SHA1
b7c19049e2cd08e26636826b671476fb72b0e698
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SHA256
2b48a940abdbb712e70e2da9c2b309a30bd7e8446fb2bc7e913155da7606aa3f
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SHA512
dda866a3e777c2c0078bb9309aa9cb2ea9da6c2a8a67e27874eb516cde964375d0e162538d247d4288d4803ff55bf4311b0bb00102cccdd67e49c3a1e42d8f3e
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SSDEEP
3072:cU8xXqbMyAheGclNC2lSPjMmqkH2zMbJqWHBYH7F4CgwkIyWXuDni6:6xXhy6eGcvDLrkWzkHB87F49wkLp
Static task
static1
Behavioral task
behavioral1
Sample
file.exe
Resource
win10v2004-20230220-de
Malware Config
Extracted
smokeloader
2022
http://potunulit.org/
http://hutnilior.net/
http://bulimu55t.net/
http://soryytlic4.net/
http://novanosa5org.org/
http://nuljjjnuli.org/
http://tolilolihul.net/
http://somatoka51hub.net/
http://hujukui3.net/
http://bukubuka1.net/
http://golilopaster.org/
http://newzelannd66.org/
http://otriluyttn.org/
http://aapu.at/tmp/
http://poudineh.com/tmp/
http://firsttrusteedrx.ru/tmp/
http://kingpirate.ru/tmp/
http://hoh0aeghwugh2gie.com/
http://hie7doodohpae4na.com/
http://aek0aicifaloh1yo.com/
http://yic0oosaeiy7ahng.com/
http://wa5zu7sekai8xeih.com/
Extracted
djvu
http://zexeq.com/lancer/get.php
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extension
.typo
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offline_id
Yao2o6f5vNghOpgVBhEIA8O96SC5vLcgITgaRMt1
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payload_url
http://uaery.top/dl/build2.exe
http://zexeq.com/files/1/build3.exe
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ransomnote
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Extracted
smokeloader
pub1
Extracted
smokeloader
sprg
Extracted
amadey
3.65
77.73.134.27/8bmdh3Slb2/index.php
Extracted
redline
koreamon
koreamonitoring.com:80
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auth_value
1a0e1a9f491ef3df873a03577dfa10aa
Targets
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Target
file
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Size
269KB
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MD5
26d85c2bdc983c43452401545f3c6007
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SHA1
e18a2a223b91f426b5dab23b13970264d1da6ebc
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SHA256
c8313943995590c444dac429919bc562c8f81c7d81c898fbb9bd7822dce889f4
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SHA512
d652d2c4ab97507e0b61b37dc069b024a531b56e80f95a449d201ba6b0a1b6baecc33162be4f4a4571054295154c2c4c0a27f6831ac5dd37f0d27e3795fde3e5
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SSDEEP
3072:Fm6fmyQA+BF8tlkC42EVOkAz+t/lB2SpYeEvyqbxDFoio56WmxeQZn78F:zQLK42EskAhS+7fyZmB
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DcRat
DarkCrystal(DC) is a new .NET RAT active since June 2019 capable of loading additional plugins.
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Detected Djvu ransomware
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Modifies security service
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RedLine
RedLine Stealer is a malware family written in C#, first appearing in early 2020.
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RedLine payload
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Suspicious use of NtCreateUserProcessOtherParentProcess
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Downloads MZ/PE file
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Stops running service(s)
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Checks computer location settings
Looks up country code configured in the registry, likely geofence.
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Executes dropped EXE
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Loads dropped DLL
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Modifies file permissions
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Accesses Microsoft Outlook profiles
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Accesses cryptocurrency files/wallets, possible credential harvesting
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Adds Run key to start application
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Checks installed software on the system
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Legitimate hosting services abused for malware hosting/C2
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Looks up external IP address via web service
Uses a legitimate IP lookup service to find the infected system's external IP.
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Writes to the Master Boot Record (MBR)
Bootkits write to the MBR to gain persistence at a level below the operating system.
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Drops file in System32 directory
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Suspicious use of NtSetInformationThreadHideFromDebugger
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Suspicious use of SetThreadContext
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MITRE ATT&CK Matrix
Command and Control
Credential Access
Credentials in Files
3Discovery
Query Registry
5System Information Discovery
4Peripheral Device Discovery
1Execution
Exfiltration
Impact
Service Stop
1Initial Access
Lateral Movement
Persistence
Modify Existing Service
2Scheduled Task
1Registry Run Keys / Startup Folder
1Bootkit
1Privilege Escalation