ramnit | 53259b37c3a8c0491cf484b4fc86116052937b2bbec39d9673e46b7f7ca701db

General

Target

53259b37c3a8c0491cf484b4fc86116052937b2bbec39d9673e46b7f7ca701db.exe
Size

122KB
MD5

239ae44b1addd26c7a19e1abe92d9000
SHA1

b322da76f51ec9ce0c806ac0e43a9475e92e29ff
SHA256

53259b37c3a8c0491cf484b4fc86116052937b2bbec39d9673e46b7f7ca701db
SHA512

7bb6917aff1c4cef02b991d6c8b9c825c720f43c6d1872e51cb896f185b55368ade37f64448059456e58389db00ca9b2a27be4e649957dfa9258aa94f1a37ff0
SSDEEP

3072:8huoIU9PWr3pEnmGVk8jwaaHw7Koj4rDkISg2z:88jU9PWOOx7E

Score

10^/10

ramnit banker evasion persistence spyware stealer trojan worm

Malware Config

Signatures

Modifies WinLogon for persistence 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1004

Modify Registry

T1112

Processes:

svchost.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Userinit = "userinit.exe,C:\\Users\\Admin\\AppData\\Local\\yijvttec\\hobietns.exe"	svchost.exe

Ramnit
Ramnit is a versatile family that holds viruses, worms, and Trojans.
trojan spyware stealer worm banker ramnit
UAC bypass 3 TTPs 1 IoCs
evasion trojan

Bypass User Account Control
T1088

Disabling Security Tools
T1089

Modify Registry
T1112

Processes:

svchost.exe

description ioc process

Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" svchost.exe
Executes dropped EXE 1 IoCs

Processes:

ytyggvpyjbnyddrx.exe

pid process

456 ytyggvpyjbnyddrx.exe
Checks BIOS information in registry 2 TTPs 1 IoCs
BIOS information is often read in order to detect sandboxing environments.

Query Registry
T1012

System Information Discovery
T1082

Processes:

svchost.exe

description ioc process

Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion svchost.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	svchost.exe

pid	process
456	ytyggvpyjbnyddrx.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	svchost.exe

Drops startup file 2 IoCs

Processes:

svchost.exe

description	ioc	process
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\hobietns.exe	svchost.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\hobietns.exe	svchost.exe

Loads dropped DLL 4 IoCs

Processes:

53259b37c3a8c0491cf484b4fc86116052937b2bbec39d9673e46b7f7ca701db.exe

pid	process
2032	53259b37c3a8c0491cf484b4fc86116052937b2bbec39d9673e46b7f7ca701db.exe
2032	53259b37c3a8c0491cf484b4fc86116052937b2bbec39d9673e46b7f7ca701db.exe
2032	53259b37c3a8c0491cf484b4fc86116052937b2bbec39d9673e46b7f7ca701db.exe
2032	53259b37c3a8c0491cf484b4fc86116052937b2bbec39d9673e46b7f7ca701db.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

svchost.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\HobIetns = "C:\\Users\\Admin\\AppData\\Local\\yijvttec\\hobietns.exe"	svchost.exe

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 44 IoCs

Processes:

svchost.exe

pid	process
1964	svchost.exe
1964	svchost.exe
1964	svchost.exe
1964	svchost.exe
1964	svchost.exe
1964	svchost.exe
1964	svchost.exe
1964	svchost.exe
1964	svchost.exe
1964	svchost.exe
1964	svchost.exe
1964	svchost.exe
1964	svchost.exe
1964	svchost.exe
1964	svchost.exe
1964	svchost.exe
1964	svchost.exe
1964	svchost.exe
1964	svchost.exe
1964	svchost.exe
1964	svchost.exe
1964	svchost.exe
1964	svchost.exe
1964	svchost.exe
1964	svchost.exe
1964	svchost.exe
1964	svchost.exe
1964	svchost.exe
1964	svchost.exe
1964	svchost.exe
1964	svchost.exe
1964	svchost.exe
1964	svchost.exe
1964	svchost.exe
1964	svchost.exe
1964	svchost.exe
1964	svchost.exe
1964	svchost.exe
1964	svchost.exe
1964	svchost.exe
1964	svchost.exe
1964	svchost.exe
1964	svchost.exe
1964	svchost.exe

Suspicious behavior: LoadsDriver 1 IoCs

Processes:

pid process

464

pid	process
464

Suspicious use of AdjustPrivilegeToken 64 IoCs

Processes:

53259b37c3a8c0491cf484b4fc86116052937b2bbec39d9673e46b7f7ca701db.exesvchost.exesvchost.exeytyggvpyjbnyddrx.exe

description	pid	process
Token: SeSecurityPrivilege	2032	53259b37c3a8c0491cf484b4fc86116052937b2bbec39d9673e46b7f7ca701db.exe
Token: SeDebugPrivilege	2032	53259b37c3a8c0491cf484b4fc86116052937b2bbec39d9673e46b7f7ca701db.exe
Token: SeSecurityPrivilege	1168	svchost.exe
Token: SeSecurityPrivilege	1964	svchost.exe
Token: SeDebugPrivilege	1964	svchost.exe
Token: SeRestorePrivilege	1964	svchost.exe
Token: SeBackupPrivilege	1964	svchost.exe
Token: SeRestorePrivilege	1964	svchost.exe
Token: SeBackupPrivilege	1964	svchost.exe
Token: SeRestorePrivilege	1964	svchost.exe
Token: SeBackupPrivilege	1964	svchost.exe
Token: SeRestorePrivilege	1964	svchost.exe
Token: SeBackupPrivilege	1964	svchost.exe
Token: SeSecurityPrivilege	456	ytyggvpyjbnyddrx.exe
Token: SeLoadDriverPrivilege	456	ytyggvpyjbnyddrx.exe
Token: SeRestorePrivilege	1964	svchost.exe
Token: SeBackupPrivilege	1964	svchost.exe
Token: SeRestorePrivilege	1964	svchost.exe
Token: SeBackupPrivilege	1964	svchost.exe
Token: SeRestorePrivilege	1964	svchost.exe
Token: SeBackupPrivilege	1964	svchost.exe
Token: SeRestorePrivilege	1964	svchost.exe
Token: SeBackupPrivilege	1964	svchost.exe
Token: SeRestorePrivilege	1964	svchost.exe
Token: SeBackupPrivilege	1964	svchost.exe
Token: SeRestorePrivilege	1964	svchost.exe
Token: SeBackupPrivilege	1964	svchost.exe
Token: SeRestorePrivilege	1964	svchost.exe
Token: SeBackupPrivilege	1964	svchost.exe
Token: SeRestorePrivilege	1964	svchost.exe
Token: SeBackupPrivilege	1964	svchost.exe
Token: SeRestorePrivilege	1964	svchost.exe
Token: SeBackupPrivilege	1964	svchost.exe
Token: SeRestorePrivilege	1964	svchost.exe
Token: SeBackupPrivilege	1964	svchost.exe
Token: SeRestorePrivilege	1964	svchost.exe
Token: SeBackupPrivilege	1964	svchost.exe
Token: SeRestorePrivilege	1964	svchost.exe
Token: SeBackupPrivilege	1964	svchost.exe
Token: SeRestorePrivilege	1964	svchost.exe
Token: SeBackupPrivilege	1964	svchost.exe
Token: SeRestorePrivilege	1964	svchost.exe
Token: SeBackupPrivilege	1964	svchost.exe
Token: SeRestorePrivilege	1964	svchost.exe
Token: SeBackupPrivilege	1964	svchost.exe
Token: SeRestorePrivilege	1964	svchost.exe
Token: SeBackupPrivilege	1964	svchost.exe
Token: SeRestorePrivilege	1964	svchost.exe
Token: SeBackupPrivilege	1964	svchost.exe
Token: SeRestorePrivilege	1964	svchost.exe
Token: SeBackupPrivilege	1964	svchost.exe
Token: SeRestorePrivilege	1964	svchost.exe
Token: SeBackupPrivilege	1964	svchost.exe
Token: SeRestorePrivilege	1964	svchost.exe
Token: SeBackupPrivilege	1964	svchost.exe
Token: SeRestorePrivilege	1964	svchost.exe
Token: SeBackupPrivilege	1964	svchost.exe
Token: SeRestorePrivilege	1964	svchost.exe
Token: SeBackupPrivilege	1964	svchost.exe
Token: SeRestorePrivilege	1964	svchost.exe
Token: SeBackupPrivilege	1964	svchost.exe
Token: SeRestorePrivilege	1964	svchost.exe
Token: SeBackupPrivilege	1964	svchost.exe
Token: SeRestorePrivilege	1964	svchost.exe

Suspicious use of WriteProcessMemory 24 IoCs

Processes:

53259b37c3a8c0491cf484b4fc86116052937b2bbec39d9673e46b7f7ca701db.exe

description	pid	process	target process
PID 2032 wrote to memory of 1168	2032	53259b37c3a8c0491cf484b4fc86116052937b2bbec39d9673e46b7f7ca701db.exe	svchost.exe
PID 2032 wrote to memory of 1168	2032	53259b37c3a8c0491cf484b4fc86116052937b2bbec39d9673e46b7f7ca701db.exe	svchost.exe
PID 2032 wrote to memory of 1168	2032	53259b37c3a8c0491cf484b4fc86116052937b2bbec39d9673e46b7f7ca701db.exe	svchost.exe
PID 2032 wrote to memory of 1168	2032	53259b37c3a8c0491cf484b4fc86116052937b2bbec39d9673e46b7f7ca701db.exe	svchost.exe
PID 2032 wrote to memory of 1168	2032	53259b37c3a8c0491cf484b4fc86116052937b2bbec39d9673e46b7f7ca701db.exe	svchost.exe
PID 2032 wrote to memory of 1168	2032	53259b37c3a8c0491cf484b4fc86116052937b2bbec39d9673e46b7f7ca701db.exe	svchost.exe
PID 2032 wrote to memory of 1168	2032	53259b37c3a8c0491cf484b4fc86116052937b2bbec39d9673e46b7f7ca701db.exe	svchost.exe
PID 2032 wrote to memory of 1168	2032	53259b37c3a8c0491cf484b4fc86116052937b2bbec39d9673e46b7f7ca701db.exe	svchost.exe
PID 2032 wrote to memory of 1168	2032	53259b37c3a8c0491cf484b4fc86116052937b2bbec39d9673e46b7f7ca701db.exe	svchost.exe
PID 2032 wrote to memory of 1168	2032	53259b37c3a8c0491cf484b4fc86116052937b2bbec39d9673e46b7f7ca701db.exe	svchost.exe
PID 2032 wrote to memory of 1964	2032	53259b37c3a8c0491cf484b4fc86116052937b2bbec39d9673e46b7f7ca701db.exe	svchost.exe
PID 2032 wrote to memory of 1964	2032	53259b37c3a8c0491cf484b4fc86116052937b2bbec39d9673e46b7f7ca701db.exe	svchost.exe
PID 2032 wrote to memory of 1964	2032	53259b37c3a8c0491cf484b4fc86116052937b2bbec39d9673e46b7f7ca701db.exe	svchost.exe
PID 2032 wrote to memory of 1964	2032	53259b37c3a8c0491cf484b4fc86116052937b2bbec39d9673e46b7f7ca701db.exe	svchost.exe
PID 2032 wrote to memory of 1964	2032	53259b37c3a8c0491cf484b4fc86116052937b2bbec39d9673e46b7f7ca701db.exe	svchost.exe
PID 2032 wrote to memory of 1964	2032	53259b37c3a8c0491cf484b4fc86116052937b2bbec39d9673e46b7f7ca701db.exe	svchost.exe
PID 2032 wrote to memory of 1964	2032	53259b37c3a8c0491cf484b4fc86116052937b2bbec39d9673e46b7f7ca701db.exe	svchost.exe
PID 2032 wrote to memory of 1964	2032	53259b37c3a8c0491cf484b4fc86116052937b2bbec39d9673e46b7f7ca701db.exe	svchost.exe
PID 2032 wrote to memory of 1964	2032	53259b37c3a8c0491cf484b4fc86116052937b2bbec39d9673e46b7f7ca701db.exe	svchost.exe
PID 2032 wrote to memory of 1964	2032	53259b37c3a8c0491cf484b4fc86116052937b2bbec39d9673e46b7f7ca701db.exe	svchost.exe
PID 2032 wrote to memory of 456	2032	53259b37c3a8c0491cf484b4fc86116052937b2bbec39d9673e46b7f7ca701db.exe	ytyggvpyjbnyddrx.exe
PID 2032 wrote to memory of 456	2032	53259b37c3a8c0491cf484b4fc86116052937b2bbec39d9673e46b7f7ca701db.exe	ytyggvpyjbnyddrx.exe
PID 2032 wrote to memory of 456	2032	53259b37c3a8c0491cf484b4fc86116052937b2bbec39d9673e46b7f7ca701db.exe	ytyggvpyjbnyddrx.exe
PID 2032 wrote to memory of 456	2032	53259b37c3a8c0491cf484b4fc86116052937b2bbec39d9673e46b7f7ca701db.exe	ytyggvpyjbnyddrx.exe

C:\Users\Admin\AppData\Local\Temp\53259b37c3a8c0491cf484b4fc86116052937b2bbec39d9673e46b7f7ca701db.exe
"C:\Users\Admin\AppData\Local\Temp\53259b37c3a8c0491cf484b4fc86116052937b2bbec39d9673e46b7f7ca701db.exe"
1⤵
- Loads dropped DLL
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2032

C:\Windows\SysWOW64\svchost.exe
C:\Windows\system32\svchost.exe
2⤵
- Suspicious use of AdjustPrivilegeToken
PID:1168

C:\Windows\SysWOW64\svchost.exe
C:\Windows\system32\svchost.exe
2⤵
- Modifies WinLogon for persistence
- UAC bypass
- Checks BIOS information in registry
- Drops startup file
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1964

C:\Users\Admin\AppData\Local\Temp\ytyggvpyjbnyddrx.exe
"C:\Users\Admin\AppData\Local\Temp\ytyggvpyjbnyddrx.exe"
2⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:456

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Winlogon Helper DLL

1

T1004

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Bypass User Account Control

1

T1088

Defense Evasion

Modify Registry

3

T1112

Bypass User Account Control

1

T1088

Disabling Security Tools

1

T1089

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\ytyggvpyjbnyddrx.exe
Filesize
122KB

MD5
239ae44b1addd26c7a19e1abe92d9000

SHA1
b322da76f51ec9ce0c806ac0e43a9475e92e29ff

SHA256
53259b37c3a8c0491cf484b4fc86116052937b2bbec39d9673e46b7f7ca701db

SHA512
7bb6917aff1c4cef02b991d6c8b9c825c720f43c6d1872e51cb896f185b55368ade37f64448059456e58389db00ca9b2a27be4e649957dfa9258aa94f1a37ff0

Download Submit
C:\Users\Admin\AppData\Local\Temp\ytyggvpyjbnyddrx.exe
Filesize
122KB

MD5
239ae44b1addd26c7a19e1abe92d9000

SHA1
b322da76f51ec9ce0c806ac0e43a9475e92e29ff

SHA256
53259b37c3a8c0491cf484b4fc86116052937b2bbec39d9673e46b7f7ca701db

SHA512
7bb6917aff1c4cef02b991d6c8b9c825c720f43c6d1872e51cb896f185b55368ade37f64448059456e58389db00ca9b2a27be4e649957dfa9258aa94f1a37ff0

Download Submit
\Users\Admin\AppData\Local\Temp\ytyggvpyjbnyddrx.exe
Filesize
122KB

MD5
239ae44b1addd26c7a19e1abe92d9000

SHA1
b322da76f51ec9ce0c806ac0e43a9475e92e29ff

SHA256
53259b37c3a8c0491cf484b4fc86116052937b2bbec39d9673e46b7f7ca701db

SHA512
7bb6917aff1c4cef02b991d6c8b9c825c720f43c6d1872e51cb896f185b55368ade37f64448059456e58389db00ca9b2a27be4e649957dfa9258aa94f1a37ff0

Download Submit
\Users\Admin\AppData\Local\Temp\ytyggvpyjbnyddrx.exe
Filesize
122KB

MD5
239ae44b1addd26c7a19e1abe92d9000

SHA1
b322da76f51ec9ce0c806ac0e43a9475e92e29ff

SHA256
53259b37c3a8c0491cf484b4fc86116052937b2bbec39d9673e46b7f7ca701db

SHA512
7bb6917aff1c4cef02b991d6c8b9c825c720f43c6d1872e51cb896f185b55368ade37f64448059456e58389db00ca9b2a27be4e649957dfa9258aa94f1a37ff0

Download Submit
\Users\Admin\AppData\Local\Temp\ytyggvpyjbnyddrx.exe
Filesize
122KB

MD5
239ae44b1addd26c7a19e1abe92d9000

SHA1
b322da76f51ec9ce0c806ac0e43a9475e92e29ff

SHA256
53259b37c3a8c0491cf484b4fc86116052937b2bbec39d9673e46b7f7ca701db

SHA512
7bb6917aff1c4cef02b991d6c8b9c825c720f43c6d1872e51cb896f185b55368ade37f64448059456e58389db00ca9b2a27be4e649957dfa9258aa94f1a37ff0

Download Submit
\Users\Admin\AppData\Local\Temp\ytyggvpyjbnyddrx.exe
Filesize
122KB

MD5
239ae44b1addd26c7a19e1abe92d9000

SHA1
b322da76f51ec9ce0c806ac0e43a9475e92e29ff

SHA256
53259b37c3a8c0491cf484b4fc86116052937b2bbec39d9673e46b7f7ca701db

SHA512
7bb6917aff1c4cef02b991d6c8b9c825c720f43c6d1872e51cb896f185b55368ade37f64448059456e58389db00ca9b2a27be4e649957dfa9258aa94f1a37ff0

Download Submit
memory/456-78-0x0000000000000000-mapping.dmp

Download
memory/456-82-0x0000000000400000-0x0000000000432144-memory.dmp

Filesize
200KB

Download
memory/1168-59-0x0000000020010000-0x000000002001C000-memory.dmp

Filesize
48KB

Download
memory/1168-58-0x0000000000000000-mapping.dmp

Download
memory/1168-56-0x0000000020010000-0x000000002001C000-memory.dmp

Filesize
48KB

Download
memory/1964-69-0x0000000020010000-0x0000000020024000-memory.dmp

Filesize
80KB

Download
memory/1964-67-0x0000000000000000-mapping.dmp

Download
memory/1964-65-0x0000000020010000-0x0000000020024000-memory.dmp

Filesize
80KB

Download
memory/2032-73-0x0000000000400000-0x0000000000432144-memory.dmp

Filesize
200KB

Download
memory/2032-54-0x0000000075A71000-0x0000000075A73000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads