c83e6b96ee3aa1a580157547eae88d112d2202d710218f2ed496f7fe3d861abc

General

Target

_J812.exe
Size

900KB
MD5

1474bd3eda2e087560754241a0b92991
SHA1

e1e66d856800dbb5ef5bf9c8e937b6514b9f02d7
SHA256

c83e6b96ee3aa1a580157547eae88d112d2202d710218f2ed496f7fe3d861abc
SHA512

ca2cbc155cef666c46e6e4c07cc2e9a61bd15cef8f8f1902d06c6178a1968487fc2ad78e018621a09836755c524215aa9fcb6e62d52b210deec10162edcc9b7f

Score

8^/10

bootkit persistence

Malware Config

Signatures

Executes dropped EXE 2 IoCs

Processes:

J812.exe~J812.exe

pid process

1684 J812.exe
1812 ~J812.exe
Deletes itself 1 IoCs

Processes:

cmd.exe

pid process

1400 cmd.exe
Loads dropped DLL 1 IoCs

Processes:

J812.exe

pid process

1684 J812.exe
Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs
Bootkits write to the MBR to gain persistence at a level below the operating system.
bootkit persistence

Bootkit
T1067

Processes:

J812.exe

description ioc process

File opened for modification \??\PhysicalDrive0 J812.exe

pid	process
1684	J812.exe
1812	~J812.exe

pid	process
1400	cmd.exe

pid	process
1684	J812.exe

description	ioc	process
File opened for modification	\??\PhysicalDrive0	J812.exe

Drops file in System32 directory 9 IoCs

Processes:

J812.exe

description	ioc	process
File created	C:\Windows\SysWOW64\config\systemprofile\AppData\Roaming\Microsoft\Windows\Cookies\FPI91A0H.txt	J812.exe
File created	C:\Windows\SysWOW64\config\systemprofile\AppData\Roaming\Microsoft\Windows\Cookies\D86NWOPM.txt	J812.exe
File created	C:\Windows\SysWOW64\config\systemprofile\AppData\Roaming\Microsoft\Windows\Cookies\TOYX0D1C.txt	J812.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Roaming\Microsoft\Windows\Cookies\TOYX0D1C.txt	J812.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Roaming\Microsoft\Windows\Cookies\CD82KIX3.txt	J812.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\Temporary Internet Files\counters.dat	J812.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Roaming\Microsoft\Windows\Cookies\FPI91A0H.txt	J812.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Roaming\Microsoft\Windows\Cookies\D86NWOPM.txt	J812.exe
File created	C:\Windows\SysWOW64\config\systemprofile\AppData\Roaming\Microsoft\Windows\Cookies\CD82KIX3.txt	J812.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Modifies data under HKEY_USERS 28 IoCs

Processes:

J812.exewmic.exe~J812.exe

description	ioc	process
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	J812.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	J812.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{C88B0D75-95D7-40B2-89BD-4A3AD4DC11FD}\WpadDecisionTime = 00cb64090706d701	J812.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{C88B0D75-95D7-40B2-89BD-4A3AD4DC11FD}\WpadNetworkName = "Network"	J812.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\32-e2-17-db-d2-77\WpadDecisionTime = 00cb64090706d701	J812.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\32-e2-17-db-d2-77\WpadDecision = "0"	J812.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{C88B0D75-95D7-40B2-89BD-4A3AD4DC11FD}	J812.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{C88B0D75-95D7-40B2-89BD-4A3AD4DC11FD}\WpadDecisionReason = "1"	J812.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\32-e2-17-db-d2-77	J812.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{C88B0D75-95D7-40B2-89BD-4A3AD4DC11FD}\32-e2-17-db-d2-77	J812.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	wmic.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	~J812.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	J812.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	J812.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	J812.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	~J812.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	~J812.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	J812.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{C88B0D75-95D7-40B2-89BD-4A3AD4DC11FD}\WpadDecision = "0"	J812.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	J812.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	J812.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	J812.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	J812.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a070056000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	J812.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	J812.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	J812.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	J812.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\32-e2-17-db-d2-77\WpadDecisionReason = "1"	J812.exe

Runs ping.exe 1 TTPs 3 IoCs

Remote System Discovery
T1018

Processes:

PING.EXEPING.EXEPING.EXE

pid process

1608 PING.EXE
1320 PING.EXE
912 PING.EXE

pid	process
1608	PING.EXE
1320	PING.EXE
912	PING.EXE

Suspicious use of AdjustPrivilegeToken 24 IoCs

Processes:

wmic.exe

description	pid	process
Token: SeAssignPrimaryTokenPrivilege	572	wmic.exe
Token: SeIncreaseQuotaPrivilege	572	wmic.exe
Token: SeSecurityPrivilege	572	wmic.exe
Token: SeTakeOwnershipPrivilege	572	wmic.exe
Token: SeLoadDriverPrivilege	572	wmic.exe
Token: SeSystemtimePrivilege	572	wmic.exe
Token: SeBackupPrivilege	572	wmic.exe
Token: SeRestorePrivilege	572	wmic.exe
Token: SeShutdownPrivilege	572	wmic.exe
Token: SeSystemEnvironmentPrivilege	572	wmic.exe
Token: SeUndockPrivilege	572	wmic.exe
Token: SeManageVolumePrivilege	572	wmic.exe
Token: SeAssignPrimaryTokenPrivilege	572	wmic.exe
Token: SeIncreaseQuotaPrivilege	572	wmic.exe
Token: SeSecurityPrivilege	572	wmic.exe
Token: SeTakeOwnershipPrivilege	572	wmic.exe
Token: SeLoadDriverPrivilege	572	wmic.exe
Token: SeSystemtimePrivilege	572	wmic.exe
Token: SeBackupPrivilege	572	wmic.exe
Token: SeRestorePrivilege	572	wmic.exe
Token: SeShutdownPrivilege	572	wmic.exe
Token: SeSystemEnvironmentPrivilege	572	wmic.exe
Token: SeUndockPrivilege	572	wmic.exe
Token: SeManageVolumePrivilege	572	wmic.exe

Suspicious use of WriteProcessMemory 32 IoCs

Processes:

_J812.execmd.exeJ812.execmd.exe~J812.execmd.exe

description	pid	process	target process
PID 1152 wrote to memory of 1400	1152	_J812.exe	cmd.exe
PID 1152 wrote to memory of 1400	1152	_J812.exe	cmd.exe
PID 1152 wrote to memory of 1400	1152	_J812.exe	cmd.exe
PID 1152 wrote to memory of 1400	1152	_J812.exe	cmd.exe
PID 1400 wrote to memory of 1320	1400	cmd.exe	PING.EXE
PID 1400 wrote to memory of 1320	1400	cmd.exe	PING.EXE
PID 1400 wrote to memory of 1320	1400	cmd.exe	PING.EXE
PID 1400 wrote to memory of 1320	1400	cmd.exe	PING.EXE
PID 1684 wrote to memory of 572	1684	J812.exe	wmic.exe
PID 1684 wrote to memory of 572	1684	J812.exe	wmic.exe
PID 1684 wrote to memory of 572	1684	J812.exe	wmic.exe
PID 1684 wrote to memory of 572	1684	J812.exe	wmic.exe
PID 1684 wrote to memory of 1812	1684	J812.exe	~J812.exe
PID 1684 wrote to memory of 1812	1684	J812.exe	~J812.exe
PID 1684 wrote to memory of 1812	1684	J812.exe	~J812.exe
PID 1684 wrote to memory of 1812	1684	J812.exe	~J812.exe
PID 1684 wrote to memory of 304	1684	J812.exe	cmd.exe
PID 1684 wrote to memory of 304	1684	J812.exe	cmd.exe
PID 1684 wrote to memory of 304	1684	J812.exe	cmd.exe
PID 1684 wrote to memory of 304	1684	J812.exe	cmd.exe
PID 304 wrote to memory of 912	304	cmd.exe	PING.EXE
PID 304 wrote to memory of 912	304	cmd.exe	PING.EXE
PID 304 wrote to memory of 912	304	cmd.exe	PING.EXE
PID 304 wrote to memory of 912	304	cmd.exe	PING.EXE
PID 1812 wrote to memory of 1272	1812	~J812.exe	cmd.exe
PID 1812 wrote to memory of 1272	1812	~J812.exe	cmd.exe
PID 1812 wrote to memory of 1272	1812	~J812.exe	cmd.exe
PID 1812 wrote to memory of 1272	1812	~J812.exe	cmd.exe
PID 1272 wrote to memory of 1608	1272	cmd.exe	PING.EXE
PID 1272 wrote to memory of 1608	1272	cmd.exe	PING.EXE
PID 1272 wrote to memory of 1608	1272	cmd.exe	PING.EXE
PID 1272 wrote to memory of 1608	1272	cmd.exe	PING.EXE

C:\Users\Admin\AppData\Local\Temp\_J812.exe
"C:\Users\Admin\AppData\Local\Temp\_J812.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1152

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c ping -n 3 127.1 >nul & del /q C:\Users\Admin\AppData\Local\Temp\_J812.exe
2⤵
- Deletes itself
- Suspicious use of WriteProcessMemory
PID:1400

C:\Windows\SysWOW64\PING.EXE
ping -n 3 127.1
3⤵
- Runs ping.exe
PID:1320

C:\Users\Admin\AppData\Local\Temp\J812.exe
C:\Users\Admin\AppData\Local\Temp\J812.exe
1⤵
- Executes dropped EXE
- Loads dropped DLL
- Writes to the Master Boot Record (MBR)
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Suspicious use of WriteProcessMemory
PID:1684

C:\Windows\SysWOW64\Wbem\wmic.exe
wmic BaseBoard get SerialNumber
2⤵
- Modifies data under HKEY_USERS
- Suspicious use of AdjustPrivilegeToken
PID:572

C:\Users\Admin\AppData\Local\Temp\~J812.exe
"C:\Users\Admin\AppData\Local\Temp\~J812.exe"
2⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
- Suspicious use of WriteProcessMemory
PID:1812

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c ping -n 3 127.1 >nul & del /q C:\Users\Admin\AppData\Local\Temp\~J812.exe
3⤵
- Suspicious use of WriteProcessMemory
PID:1272

C:\Windows\SysWOW64\PING.EXE
ping -n 3 127.1
4⤵
- Runs ping.exe
PID:1608

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c ping -n 3 127.1 >nul & del /q C:\Users\Admin\AppData\Local\Temp\J812.exe
2⤵
- Suspicious use of WriteProcessMemory
PID:304

C:\Windows\SysWOW64\PING.EXE
ping -n 3 127.1
3⤵
- Runs ping.exe
PID:912

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Bootkit

1

T1067

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

Remote System Discovery

1

T1018

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\J812.exe
MD5
1474bd3eda2e087560754241a0b92991

SHA1
e1e66d856800dbb5ef5bf9c8e937b6514b9f02d7

SHA256
c83e6b96ee3aa1a580157547eae88d112d2202d710218f2ed496f7fe3d861abc

SHA512
ca2cbc155cef666c46e6e4c07cc2e9a61bd15cef8f8f1902d06c6178a1968487fc2ad78e018621a09836755c524215aa9fcb6e62d52b210deec10162edcc9b7f

Download Submit
C:\Users\Admin\AppData\Local\Temp\J812.exe
MD5
1474bd3eda2e087560754241a0b92991

SHA1
e1e66d856800dbb5ef5bf9c8e937b6514b9f02d7

SHA256
c83e6b96ee3aa1a580157547eae88d112d2202d710218f2ed496f7fe3d861abc

SHA512
ca2cbc155cef666c46e6e4c07cc2e9a61bd15cef8f8f1902d06c6178a1968487fc2ad78e018621a09836755c524215aa9fcb6e62d52b210deec10162edcc9b7f

Download Submit
C:\Users\Admin\AppData\Local\Temp\~J812.exe
MD5
1474bd3eda2e087560754241a0b92991

SHA1
e1e66d856800dbb5ef5bf9c8e937b6514b9f02d7

SHA256
c83e6b96ee3aa1a580157547eae88d112d2202d710218f2ed496f7fe3d861abc

SHA512
ca2cbc155cef666c46e6e4c07cc2e9a61bd15cef8f8f1902d06c6178a1968487fc2ad78e018621a09836755c524215aa9fcb6e62d52b210deec10162edcc9b7f

Download Submit
C:\Users\Admin\AppData\Local\Temp\~J812.exe
MD5
1474bd3eda2e087560754241a0b92991

SHA1
e1e66d856800dbb5ef5bf9c8e937b6514b9f02d7

SHA256
c83e6b96ee3aa1a580157547eae88d112d2202d710218f2ed496f7fe3d861abc

SHA512
ca2cbc155cef666c46e6e4c07cc2e9a61bd15cef8f8f1902d06c6178a1968487fc2ad78e018621a09836755c524215aa9fcb6e62d52b210deec10162edcc9b7f

Download Submit
\Users\Admin\AppData\Local\Temp\~J812.exe
MD5
1474bd3eda2e087560754241a0b92991

SHA1
e1e66d856800dbb5ef5bf9c8e937b6514b9f02d7

SHA256
c83e6b96ee3aa1a580157547eae88d112d2202d710218f2ed496f7fe3d861abc

SHA512
ca2cbc155cef666c46e6e4c07cc2e9a61bd15cef8f8f1902d06c6178a1968487fc2ad78e018621a09836755c524215aa9fcb6e62d52b210deec10162edcc9b7f

Download Submit
memory/304-13-0x0000000000000000-mapping.dmp

Download
memory/572-7-0x0000000000000000-mapping.dmp

Download
memory/912-15-0x0000000000000000-mapping.dmp

Download
memory/1152-2-0x00000000760C1000-0x00000000760C3000-memory.dmp

Filesize
8KB

Download
memory/1272-16-0x0000000000000000-mapping.dmp

Download
memory/1320-6-0x0000000000000000-mapping.dmp

Download
memory/1400-5-0x0000000000000000-mapping.dmp

Download
memory/1608-17-0x0000000000000000-mapping.dmp

Download
memory/1684-14-0x0000000000320000-0x0000000000321000-memory.dmp

Filesize
4KB

Download
memory/1812-10-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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