Malware Analysis Report

2024-11-15 08:07

Sample ID 230614-kx2m6afb87
Target KRNLExecutor.exe
SHA256 1e0474476d1eba6ed4ea3e6c2bdc368412f60862db3ee84e096eb800a8c884bc
Tags
mercurialgrabber evasion spyware stealer
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V6

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

1e0474476d1eba6ed4ea3e6c2bdc368412f60862db3ee84e096eb800a8c884bc

Threat Level: Known bad

The file KRNLExecutor.exe was found to be: Known bad.

Malicious Activity Summary

mercurialgrabber evasion spyware stealer

Mercurialgrabber family

Mercurial Grabber Stealer

Looks for VirtualBox Guest Additions in registry

Looks for VMWare Tools registry key

Reads user/profile data of web browsers

Checks BIOS information in registry

Looks up external IP address via web service

Legitimate hosting services abused for malware hosting/C2

Maps connected drives based on registry

Unsigned PE

Program crash

Suspicious use of WriteProcessMemory

Checks SCSI registry key(s)

Enumerates system info in registry

Modifies system certificate store

Checks processor information in registry

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2023-06-14 08:59

Signatures

Mercurialgrabber family

mercurialgrabber

Unsigned PE

Description Indicator Process Target
N/A N/A N/A N/A

Analysis: behavioral1

Detonation Overview

Submitted

2023-06-14 08:59

Reported

2023-06-14 09:02

Platform

win7-20230220-en

Max time kernel

63s

Max time network

65s

Command Line

"C:\Users\Admin\AppData\Local\Temp\KRNLExecutor.exe"

Signatures

Mercurial Grabber Stealer

stealer mercurialgrabber

Looks for VirtualBox Guest Additions in registry

evasion
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SOFTWARE\Oracle\VirtualBox Guest Additions C:\Users\Admin\AppData\Local\Temp\KRNLExecutor.exe N/A

Looks for VMWare Tools registry key

evasion
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SOFTWARE\VMWare, Inc.\VMWare Tools C:\Users\Admin\AppData\Local\Temp\KRNLExecutor.exe N/A

Checks BIOS information in registry

Description Indicator Process Target
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion C:\Users\Admin\AppData\Local\Temp\KRNLExecutor.exe N/A

Reads user/profile data of web browsers

spyware stealer

Legitimate hosting services abused for malware hosting/C2

Looks up external IP address via web service

Description Indicator Process Target
N/A ip4.seeip.org N/A N/A
N/A ip4.seeip.org N/A N/A
N/A ip4.seeip.org N/A N/A
N/A ip-api.com N/A N/A

Maps connected drives based on registry

Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum C:\Users\Admin\AppData\Local\Temp\KRNLExecutor.exe N/A
Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0 C:\Users\Admin\AppData\Local\Temp\KRNLExecutor.exe N/A

Program crash

Description Indicator Process Target
N/A N/A C:\Windows\system32\WerFault.exe C:\Users\Admin\AppData\Local\Temp\KRNLExecutor.exe

Checks SCSI registry key(s)

Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_VMware_&Prod_VMware_Virtual_S C:\Users\Admin\AppData\Local\Temp\KRNLExecutor.exe N/A

Checks processor information in registry

Description Indicator Process Target
Key opened \REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0 C:\Users\Admin\AppData\Local\Temp\KRNLExecutor.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString C:\Users\Admin\AppData\Local\Temp\KRNLExecutor.exe N/A

Enumerates system info in registry

Description Indicator Process Target
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosInformation C:\Users\Admin\AppData\Local\Temp\KRNLExecutor.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemManufacturer C:\Users\Admin\AppData\Local\Temp\KRNLExecutor.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemProductName C:\Users\Admin\AppData\Local\Temp\KRNLExecutor.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Logical Unit Id 0 C:\Users\Admin\AppData\Local\Temp\KRNLExecutor.exe N/A

Modifies system certificate store

evasion spyware trojan
Description Indicator Process Target
Set value (data) \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\DAC9024F54D8F6DF94935FB1732638CA6AD77C13\Blob = 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 C:\Users\Admin\AppData\Local\Temp\KRNLExecutor.exe N/A
Set value (data) \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\DAC9024F54D8F6DF94935FB1732638CA6AD77C13\Blob = 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 C:\Users\Admin\AppData\Local\Temp\KRNLExecutor.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\ROOT\Certificates\CABD2A79A1076A31F21D253635CB039D4329A5E8 C:\Users\Admin\AppData\Local\Temp\KRNLExecutor.exe N/A
Set value (data) \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\ROOT\Certificates\CABD2A79A1076A31F21D253635CB039D4329A5E8\Blob = 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 C:\Users\Admin\AppData\Local\Temp\KRNLExecutor.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\DAC9024F54D8F6DF94935FB1732638CA6AD77C13 C:\Users\Admin\AppData\Local\Temp\KRNLExecutor.exe N/A
Set value (data) \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\DAC9024F54D8F6DF94935FB1732638CA6AD77C13\Blob = 0f00000001000000140000005bcaa1c2780f0bcb5a90770451d96f38963f012d0b000000010000001e000000440053005400200052006f006f0074002000430041002000580033000000090000000100000016000000301406082b0601050507030406082b06010505070301140000000100000014000000c4a7b1a47b2c71fadbe14b9075ffc415608589101d00000001000000100000004558d512eecb27464920897de7b66053030000000100000014000000dac9024f54d8f6df94935fb1732638ca6ad77c1320000000010000004e0300003082034a30820232a003020102021044afb080d6a327ba893039862ef8406b300d06092a864886f70d0101050500303f31243022060355040a131b4469676974616c205369676e617475726520547275737420436f2e311730150603550403130e44535420526f6f74204341205833301e170d3030303933303231313231395a170d3231303933303134303131355a303f31243022060355040a131b4469676974616c205369676e617475726520547275737420436f2e311730150603550403130e44535420526f6f7420434120583330820122300d06092a864886f70d01010105000382010f003082010a0282010100dfafe99750088357b4cc6265f69082ecc7d32c6b30ca5becd9c37dc740c118148be0e83376492ae33f214993ac4e0eaf3e48cb65eefcd3210f65d22ad9328f8ce5f777b0127bb595c089a3a9baed732e7a0c063283a27e8a1430cd11a0e12a38b9790a31fd50bd8065dfb7516383c8e28861ea4b6181ec526bb9a2e24b1a289f48a39e0cda098e3e172e1edd20df5bc62a8aab2ebd70adc50b1a25907472c57b6aab34d63089ffe568137b540bc8d6aeec5a9c921e3d64b38cc6dfbfc94170ec1672d526ec38553943d0fcfd185c40f197ebd59a9b8d1dbada25b9c6d8dfc115023aabda6ef13e2ef55c089c3cd68369e4109b192ab62957e3e53d9b9ff0025d0203010001a3423040300f0603551d130101ff040530030101ff300e0603551d0f0101ff040403020106301d0603551d0e04160414c4a7b1a47b2c71fadbe14b9075ffc41560858910300d06092a864886f70d01010505000382010100a31a2c9b17005ca91eee2866373abf83c73f4bc309a095205de3d95944d23e0d3ebd8a4ba0741fce10829c741a1d7e981addcb134bb32044e491e9ccfc7da5db6ae5fee6fde04eddb7003ab57049aff2e5eb02f1d1028b19cb943a5e48c4181e58195f1e025af00cf1b1ada9dc59868b6ee991f586cafab96633aa595bcee2a7167347cb2bcc99b03748cfe3564bf5cf0f0c723287c6f044bb53726d43f526489a5267b758abfe67767178db0da256141339243185a2a8025a3047e1dd5007bc02099000eb6463609b16bc88c912e6d27d918bf93d328d65b4e97cb15776eac5b62839bf15651cc8f677966a0a8d770bd8910b048e07db29b60aee9d82353510 C:\Users\Admin\AppData\Local\Temp\KRNLExecutor.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\KRNLExecutor.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1324 wrote to memory of 1968 N/A C:\Users\Admin\AppData\Local\Temp\KRNLExecutor.exe C:\Windows\system32\WerFault.exe
PID 1324 wrote to memory of 1968 N/A C:\Users\Admin\AppData\Local\Temp\KRNLExecutor.exe C:\Windows\system32\WerFault.exe
PID 1324 wrote to memory of 1968 N/A C:\Users\Admin\AppData\Local\Temp\KRNLExecutor.exe C:\Windows\system32\WerFault.exe

Processes

C:\Users\Admin\AppData\Local\Temp\KRNLExecutor.exe

"C:\Users\Admin\AppData\Local\Temp\KRNLExecutor.exe"

C:\Windows\system32\WerFault.exe

C:\Windows\system32\WerFault.exe -u -p 1324 -s 1868

Network

Country Destination Domain Proto
US 8.8.8.8:53 ip4.seeip.org udp
US 23.128.64.141:443 ip4.seeip.org tcp
US 8.8.8.8:53 apps.identrust.com udp
NL 92.122.101.8:80 apps.identrust.com tcp
US 23.128.64.141:443 ip4.seeip.org tcp
US 8.8.8.8:53 ip-api.com udp
US 208.95.112.1:80 ip-api.com tcp
US 8.8.8.8:53 discord.com udp
US 162.159.135.232:443 discord.com tcp
US 162.159.135.232:443 discord.com tcp

Files

memory/1324-54-0x0000000000E70000-0x0000000000E80000-memory.dmp

memory/1324-55-0x000000001B080000-0x000000001B100000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\Cab2704.tmp

MD5 fc4666cbca561e864e7fdf883a9e6661
SHA1 2f8d6094c7a34bf12ea0bbf0d51ee9c5bb7939a5
SHA256 10f3deb6c452d749a7451b5d065f4c0449737e5ee8a44f4d15844b503141e65b
SHA512 c71f54b571e01f247f072be4bbebdf5d8410b67eb79a61e7e0d9853fe857ab9bd12f53e6af3394b935560178107291fc4be351b27deb388eba90ba949633d57d

C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\94308059B57B3142E455B38A6EB92015

MD5 3ac860860707baaf32469fa7cc7c0192
SHA1 c33c2acdaba0e6fa41fd2f00f186804722477639
SHA256 d015145d551ecd14916270efad773bbc9fd57fad2228d2c24559f696c961d904
SHA512 d62ad2408c969a95550fb87efda50f988770ba5e39972041bf85924275baf156b8bec309ecc6409e5acdd37ec175dea40eff921ab58933b5b5b5d35a6147567c

C:\Users\Admin\AppData\Local\Temp\Tar2A17.tmp

MD5 4ff65ad929cd9a367680e0e5b1c08166
SHA1 c0af0d4396bd1f15c45f39d3b849ba444233b3a2
SHA256 c8733c93cc5aaf5ca206d06af22ee8dbdec764fb5085019a6a9181feb9dfdee6
SHA512 f530dc0d024a5a3b8903ffaaa41b608a5ccdd6da4ba1949f2c2e55a9fca475fec5c8d2119b5763cabe7ef1c3788fb9dcac621869db51d65b1d83cfe404fb4c27

C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

MD5 d708426f35b770ba268de1ce3acb04d7
SHA1 9ccce67e3294ccc74ee77716ca212c61d07109f5
SHA256 263d046bb6f9be916ebb496453e6b17c4029e110e8f41fb3bdc3a10b0ea9826c
SHA512 20d52177b1ea6ae683e3549d6e64d6a56d3d6b7a3370f72a41f2652ecde2e40ab4c3dc8e935e9d08af605637f4f62ebdcccfa853fe769ceff3318a57cd474ae6

memory/1324-142-0x000000001B080000-0x000000001B100000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2023-06-14 08:59

Reported

2023-06-14 09:02

Platform

win10v2004-20230220-en

Max time kernel

135s

Max time network

146s

Command Line

"C:\Users\Admin\AppData\Local\Temp\KRNLExecutor.exe"

Signatures

Mercurial Grabber Stealer

stealer mercurialgrabber

Looks for VirtualBox Guest Additions in registry

evasion
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SOFTWARE\Oracle\VirtualBox Guest Additions C:\Users\Admin\AppData\Local\Temp\KRNLExecutor.exe N/A

Looks for VMWare Tools registry key

evasion
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SOFTWARE\VMWare, Inc.\VMWare Tools C:\Users\Admin\AppData\Local\Temp\KRNLExecutor.exe N/A

Checks BIOS information in registry

Description Indicator Process Target
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion C:\Users\Admin\AppData\Local\Temp\KRNLExecutor.exe N/A

Reads user/profile data of web browsers

spyware stealer

Legitimate hosting services abused for malware hosting/C2

Looks up external IP address via web service

Description Indicator Process Target
N/A ip4.seeip.org N/A N/A
N/A ip4.seeip.org N/A N/A
N/A ip4.seeip.org N/A N/A
N/A ip-api.com N/A N/A

Maps connected drives based on registry

Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum C:\Users\Admin\AppData\Local\Temp\KRNLExecutor.exe N/A
Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0 C:\Users\Admin\AppData\Local\Temp\KRNLExecutor.exe N/A

Checks SCSI registry key(s)

Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_VMware_&Prod_VMware_Virtual_S C:\Users\Admin\AppData\Local\Temp\KRNLExecutor.exe N/A

Checks processor information in registry

Description Indicator Process Target
Key opened \REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0 C:\Users\Admin\AppData\Local\Temp\KRNLExecutor.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString C:\Users\Admin\AppData\Local\Temp\KRNLExecutor.exe N/A

Enumerates system info in registry

Description Indicator Process Target
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemManufacturer C:\Users\Admin\AppData\Local\Temp\KRNLExecutor.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemProductName C:\Users\Admin\AppData\Local\Temp\KRNLExecutor.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Logical Unit Id 0 C:\Users\Admin\AppData\Local\Temp\KRNLExecutor.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosInformation C:\Users\Admin\AppData\Local\Temp\KRNLExecutor.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\KRNLExecutor.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\KRNLExecutor.exe

"C:\Users\Admin\AppData\Local\Temp\KRNLExecutor.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 ip4.seeip.org udp
US 23.128.64.141:443 ip4.seeip.org tcp
US 23.128.64.141:443 ip4.seeip.org tcp
US 209.197.3.8:80 tcp
US 8.8.8.8:53 141.64.128.23.in-addr.arpa udp
US 8.8.8.8:53 28.118.140.52.in-addr.arpa udp
US 93.184.220.29:80 tcp
US 8.8.8.8:53 23.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 ip-api.com udp
US 208.95.112.1:80 ip-api.com tcp
US 8.8.8.8:53 discord.com udp
US 162.159.138.232:443 discord.com tcp
US 162.159.138.232:443 discord.com tcp
US 8.8.8.8:53 1.112.95.208.in-addr.arpa udp
US 8.8.8.8:53 232.138.159.162.in-addr.arpa udp
US 8.8.8.8:53 97.17.167.52.in-addr.arpa udp
US 8.8.8.8:53 126.130.241.8.in-addr.arpa udp
US 40.125.122.176:443 tcp
US 8.8.8.8:53 232.168.11.51.in-addr.arpa udp
US 20.189.173.6:443 tcp
US 40.125.122.176:443 tcp
US 209.197.3.8:80 tcp
US 40.125.122.176:443 tcp
US 8.8.8.8:53 63.13.109.52.in-addr.arpa udp
US 209.197.3.8:80 tcp
US 40.125.122.176:443 tcp
US 162.159.138.232:443 discord.com tcp
US 40.125.122.176:443 tcp
US 40.125.122.176:443 tcp

Files

memory/3260-133-0x0000000000800000-0x0000000000810000-memory.dmp

memory/3260-134-0x0000000000E70000-0x0000000000E80000-memory.dmp

memory/3260-135-0x0000000000E70000-0x0000000000E80000-memory.dmp