41c14b6c1c1332206e04a490a6065adad92209bea55d5f5356fcd9ac87fba182

Analysis

max time kernel
139s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
03/01/2024, 14:39

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General

Target

19275d4b17856c67163cb849c0a7f805.exe
Size

92KB
MD5

19275d4b17856c67163cb849c0a7f805
SHA1

d25b0d85ba3d499e2a02cebbc23aca31a964e2e4
SHA256

41c14b6c1c1332206e04a490a6065adad92209bea55d5f5356fcd9ac87fba182
SHA512

c437ae03fa6f033f8a8f632613e50eac69c32f597249ef5c5eed32d0c1ee2b7b25c4bf4811abde4a00d85ca1bec89256fae3d419428917c1325f0b050978b8e3
SSDEEP

384:8qIP3UdwjcIP3UdwHJZ415LW1u93HLrEWJ:ZS3UdwYS3UdwHJGGu93HLrP

Score

10^/10

persistence

Malware Config

Signatures

Adds autorun key to be loaded by Explorer.exe on startup 2 TTPs 1 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\ShellServiceObjectDelayLoad\csrsrvmy = "{00150015-0015-0015-0015-00150015BB15}"	19275d4b17856c67163cb849c0a7f805.exe

Loads dropped DLL 1 IoCs

pid	Process
4380	19275d4b17856c67163cb849c0a7f805.exe

Drops file in System32 directory 3 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\csrsrvmy.tmp	19275d4b17856c67163cb849c0a7f805.exe
File opened for modification	C:\Windows\SysWOW64\csrsrvmy.tmp	19275d4b17856c67163cb849c0a7f805.exe
File opened for modification	C:\Windows\SysWOW64\csrsrvmy.nls	19275d4b17856c67163cb849c0a7f805.exe

Modifies registry class 4 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{00150015-0015-0015-0015-00150015BB15}\InProcServer32\ThreadingModel = "Apartment"	19275d4b17856c67163cb849c0a7f805.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{00150015-0015-0015-0015-00150015BB15}	19275d4b17856c67163cb849c0a7f805.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{00150015-0015-0015-0015-00150015BB15}\InProcServer32	19275d4b17856c67163cb849c0a7f805.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{00150015-0015-0015-0015-00150015BB15}\InProcServer32\ = "C:\\Windows\\SysWow64\\csrsrvmy.dll"	19275d4b17856c67163cb849c0a7f805.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4380	19275d4b17856c67163cb849c0a7f805.exe
4380	19275d4b17856c67163cb849c0a7f805.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4380	19275d4b17856c67163cb849c0a7f805.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4380 wrote to memory of 452	4380	19275d4b17856c67163cb849c0a7f805.exe	81
PID 4380 wrote to memory of 452	4380	19275d4b17856c67163cb849c0a7f805.exe	81
PID 4380 wrote to memory of 452	4380	19275d4b17856c67163cb849c0a7f805.exe	81

C:\Users\Admin\AppData\Local\Temp\19275d4b17856c67163cb849c0a7f805.exe
"C:\Users\Admin\AppData\Local\Temp\19275d4b17856c67163cb849c0a7f805.exe"
1⤵
- Adds autorun key to be loaded by Explorer.exe on startup
- Loads dropped DLL
- Drops file in System32 directory
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4380
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\4815.tmp.bat
  2⤵
  PID:452

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Windows 7 deprecation

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads