eb0914059110304a1534aa829cd5caa7d793a08956c4bc4cdce3fb1fa25098a4

General

Target

bcb7cd0534216f33bc7296a4c6881323.exe
Size

39KB
MD5

bcb7cd0534216f33bc7296a4c6881323
SHA1

ddeec897e56d93b8093826545855356bbf881c56
SHA256

eb0914059110304a1534aa829cd5caa7d793a08956c4bc4cdce3fb1fa25098a4
SHA512

7162768feeb6fb14d5785f52039ab8f427ac4eb2ed49dc2ac1bff592d0e4acfdc2482693c668f1990c32a7f040f0c9d5eed59ea3229891f9cd9957faee87263c
SSDEEP

768:k9Bn2RpxSECWHVYgnqk6i4WUGCmaflH6t8VHjVnb/0D:kDn23xSvAVznq9i4HGChY0jVnjI

Score

10^/10

evasion persistence trojan upx

Malware Config

Signatures

Modifies WinLogon for persistence 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1547.004

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Userinit = "C:\\Windows\\system32\\winlogon32.exe"	bcb7cd0534216f33bc7296a4c6881323.exe

UAC bypass 3 TTPs 1 IoCs

evasion trojan

Bypass User Account Control

T1548.002

Disable or Modify Tools

T1562.001

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	bcb7cd0534216f33bc7296a4c6881323.exe

Disables Task Manager via registry modification
evasion

UPX packed file 1 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/2444-0-0x0000000000400000-0x0000000000449000-memory.dmp	upx

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\smss32.exe = "C:\\Windows\\system32\\smss32.exe"	bcb7cd0534216f33bc7296a4c6881323.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1497073144-2389943819-3385106915-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\smss32.exe = "C:\\Windows\\system32\\smss32.exe"	bcb7cd0534216f33bc7296a4c6881323.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	bcb7cd0534216f33bc7296a4c6881323.exe

Drops file in System32 directory 3 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\smss32.exe	bcb7cd0534216f33bc7296a4c6881323.exe
File opened for modification	C:\Windows\SysWOW64\smss32.exe	bcb7cd0534216f33bc7296a4c6881323.exe
File created	C:\Windows\SysWOW64\winlogon32.exe	bcb7cd0534216f33bc7296a4c6881323.exe

Modifies Internet Explorer Phishing Filter 1 TTPs 5 IoCs

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Internet Explorer\PhishingFilter\EnabledV8 = "0"	bcb7cd0534216f33bc7296a4c6881323.exe
Key created	\REGISTRY\USER\S-1-5-21-1497073144-2389943819-3385106915-1000\Software\Microsoft\Internet Explorer\PhishingFilter	bcb7cd0534216f33bc7296a4c6881323.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1497073144-2389943819-3385106915-1000\SOFTWARE\Microsoft\Internet Explorer\PhishingFilter\Enabled = "0"	bcb7cd0534216f33bc7296a4c6881323.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1497073144-2389943819-3385106915-1000\SOFTWARE\Microsoft\Internet Explorer\PhishingFilter\EnabledV8 = "0"	bcb7cd0534216f33bc7296a4c6881323.exe
Key created	\REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Internet Explorer\PhishingFilter	bcb7cd0534216f33bc7296a4c6881323.exe

System policy modification 1 TTPs 7 IoCs

evasion

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System	bcb7cd0534216f33bc7296a4c6881323.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	bcb7cd0534216f33bc7296a4c6881323.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer	bcb7cd0534216f33bc7296a4c6881323.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\NoSetActiveDesktop = "1"	bcb7cd0534216f33bc7296a4c6881323.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\ActiveDesktop	bcb7cd0534216f33bc7296a4c6881323.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\ActiveDesktop\NoChangingWallpaper = "1"	bcb7cd0534216f33bc7296a4c6881323.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\NoActiveDesktopChanges = "1"	bcb7cd0534216f33bc7296a4c6881323.exe

C:\Users\Admin\AppData\Local\Temp\bcb7cd0534216f33bc7296a4c6881323.exe
"C:\Users\Admin\AppData\Local\Temp\bcb7cd0534216f33bc7296a4c6881323.exe"
1⤵
- Modifies WinLogon for persistence
- UAC bypass
- Adds Run key to start application
- Checks whether UAC is enabled
- Drops file in System32 directory
- Modifies Internet Explorer Phishing Filter
- System policy modification
PID:2444

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

2

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Winlogon Helper DLL

1

T1547.004

Privilege Escalation

Abuse Elevation Control Mechanism

1

T1548

Bypass User Account Control

1

T1548.002

Boot or Logon Autostart Execution

2

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Winlogon Helper DLL

1

T1547.004

Defense Evasion

Abuse Elevation Control Mechanism

1

T1548

Bypass User Account Control

1

T1548.002

Impair Defenses

1

T1562

Disable or Modify Tools

Modify Registry

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/2444-0-0x0000000000400000-0x0000000000449000-memory.dmp

Filesize
292KB

Download
memory/2444-2-0x0000000000400000-0x0000000000449000-memory.dmp

Filesize
292KB

Download
memory/2444-1-0x00000000004A0000-0x00000000004A2000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads