269418090e8be5de1625ff26c789f5be7be2ed5d690328647152ecb4d540f3ab

General

Target

b91245cf0fafad7150a5bc335335b2342f39bf920eb81ca8d6b890ebae737e42.exe
Size

366KB
MD5

abd24faa60515f22c32a5f03d2473620
SHA1

5e0b8b5c062839c839367f651e9fed8f3171328a
SHA256

b91245cf0fafad7150a5bc335335b2342f39bf920eb81ca8d6b890ebae737e42
SHA512

3306506a865b51b1c25a35d49e1fee5752371b7a917bd6adbb84e94d523e5b536372f6a2ce9dbc064939cf4f9c57fcfdc45bcd839a9d7fcdc6a12618e368ae06

Score

8^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

Processes:

WinSrv.exe

pid process

2476 WinSrv.exe

pid	process
2476	WinSrv.exe

Drops file in System32 directory 24 IoCs

Processes:

WinSrv.exeb91245cf0fafad7150a5bc335335b2342f39bf920eb81ca8d6b890ebae737e42.exe

description	ioc	process
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5	WinSrv.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE	WinSrv.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies	WinSrv.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5	WinSrv.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache	WinSrv.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content	WinSrv.exe
File created	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies\RHLFPFSI.cookie	WinSrv.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies\RHLFPFSI.cookie	WinSrv.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies\HOTZOETZ.cookie	WinSrv.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\counters2.dat	WinSrv.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft	WinSrv.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\B2FAF7692FD9FFBD64EDE317E42334BA_89854CA6A0F0936A4D2ECA78845CEA25	WinSrv.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\00E8B2222155EE2FA685572BF7181C12	WinSrv.exe
File created	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies\HOTZOETZ.cookie	WinSrv.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\57C8EDB95DF3F0AD4EE2DC2B8CFD4157	WinSrv.exe
File created	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies\4XRNLOHV.cookie	WinSrv.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData	WinSrv.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\B2FAF7692FD9FFBD64EDE317E42334BA_89854CA6A0F0936A4D2ECA78845CEA25	WinSrv.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\D0E1C4B6144E7ECAB3F020E4A19EFC29_03D1B482EE3032A122274428715A4E19	WinSrv.exe
File created	C:\Windows\SysWOW64\WinSrv.exe	b91245cf0fafad7150a5bc335335b2342f39bf920eb81ca8d6b890ebae737e42.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\D0E1C4B6144E7ECAB3F020E4A19EFC29_03D1B482EE3032A122274428715A4E19	WinSrv.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\00E8B2222155EE2FA685572BF7181C12	WinSrv.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\57C8EDB95DF3F0AD4EE2DC2B8CFD4157	WinSrv.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies\4XRNLOHV.cookie	WinSrv.exe

Modifies data under HKEY_USERS 11 IoCs

Processes:

WinSrv.exe

description	ioc	process
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing	WinSrv.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	WinSrv.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	WinSrv.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	WinSrv.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1"	WinSrv.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1"	WinSrv.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0"	WinSrv.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	WinSrv.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1"	WinSrv.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\16\52C64B7E\LanguageList = 65006e002d0055005300000065006e0000000000	WinSrv.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\OnDemandInterfaceCache	WinSrv.exe

Modifies system certificate store 2 TTPs 2 IoCs

evasion spyware trojan

Install Root Certificate

T1130

Modify Registry

T1112

Processes:

WinSrv.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D1EB23A46D17D68FD92564C2F1F1601764D8E349	WinSrv.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\D1EB23A46D17D68FD92564C2F1F1601764D8E349\Blob = 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	WinSrv.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

Processes:

b91245cf0fafad7150a5bc335335b2342f39bf920eb81ca8d6b890ebae737e42.exeWinSrv.exe

pid	process
2432	b91245cf0fafad7150a5bc335335b2342f39bf920eb81ca8d6b890ebae737e42.exe
2432	b91245cf0fafad7150a5bc335335b2342f39bf920eb81ca8d6b890ebae737e42.exe
2476	WinSrv.exe
2476	WinSrv.exe
2476	WinSrv.exe
2476	WinSrv.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

WinSrv.exeb91245cf0fafad7150a5bc335335b2342f39bf920eb81ca8d6b890ebae737e42.exe

description	pid	process	target process
PID 2476 wrote to memory of 1092	2476	WinSrv.exe	svchost.exe
PID 2476 wrote to memory of 1092	2476	WinSrv.exe	svchost.exe
PID 2476 wrote to memory of 1092	2476	WinSrv.exe	svchost.exe
PID 2432 wrote to memory of 820	2432	b91245cf0fafad7150a5bc335335b2342f39bf920eb81ca8d6b890ebae737e42.exe	cmd.exe
PID 2432 wrote to memory of 820	2432	b91245cf0fafad7150a5bc335335b2342f39bf920eb81ca8d6b890ebae737e42.exe	cmd.exe
PID 2432 wrote to memory of 820	2432	b91245cf0fafad7150a5bc335335b2342f39bf920eb81ca8d6b890ebae737e42.exe	cmd.exe

C:\Users\Admin\AppData\Local\Temp\b91245cf0fafad7150a5bc335335b2342f39bf920eb81ca8d6b890ebae737e42.exe
"C:\Users\Admin\AppData\Local\Temp\b91245cf0fafad7150a5bc335335b2342f39bf920eb81ca8d6b890ebae737e42.exe"
1⤵
- Drops file in System32 directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2432

C:\Windows\SysWOW64\cmd.exe
/c del C:\Users\Admin\AppData\Local\Temp\b91245cf0fafad7150a5bc335335b2342f39bf920eb81ca8d6b890ebae737e42.exe >> NUL
2⤵
PID:820

C:\Windows\SysWOW64\WinSrv.exe
C:\Windows\SysWOW64\WinSrv.exe
1⤵
- Executes dropped EXE
- Drops file in System32 directory
- Modifies data under HKEY_USERS
- Modifies system certificate store
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2476

C:\Windows\SysWOW64\svchost.exe
C:\Windows\System32\svchost.exe
2⤵
PID:1092

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Install Root Certificate

1

T1130

Modify Registry

1

T1112

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Windows\SysWOW64\WinSrv.exe
MD5
abd24faa60515f22c32a5f03d2473620

SHA1
5e0b8b5c062839c839367f651e9fed8f3171328a

SHA256
b91245cf0fafad7150a5bc335335b2342f39bf920eb81ca8d6b890ebae737e42

SHA512
3306506a865b51b1c25a35d49e1fee5752371b7a917bd6adbb84e94d523e5b536372f6a2ce9dbc064939cf4f9c57fcfdc45bcd839a9d7fcdc6a12618e368ae06

Download Submit
C:\Windows\SysWOW64\WinSrv.exe
MD5
abd24faa60515f22c32a5f03d2473620

SHA1
5e0b8b5c062839c839367f651e9fed8f3171328a

SHA256
b91245cf0fafad7150a5bc335335b2342f39bf920eb81ca8d6b890ebae737e42

SHA512
3306506a865b51b1c25a35d49e1fee5752371b7a917bd6adbb84e94d523e5b536372f6a2ce9dbc064939cf4f9c57fcfdc45bcd839a9d7fcdc6a12618e368ae06

Download Submit
memory/820-120-0x0000000000000000-mapping.dmp

Download
memory/2432-115-0x0000000002050000-0x000000000206F000-memory.dmp

Filesize
124KB

Download
memory/2432-116-0x0000000000400000-0x000000000045F000-memory.dmp

Filesize
380KB

Download
memory/2476-119-0x0000000000400000-0x000000000045F000-memory.dmp

Filesize
380KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

Loading Replay Monitor...

Downloads