fb411599f7a697840f31bc8cae75550ca2adb1ccfe842471348550234e6a12e6

General

Target

fb411599f7a697840f31bc8cae75550ca2adb1ccfe842471348550234e6a12e6.exe
Size

671KB
MD5

07e9a93580d9a73366d321aa86cbd6a0
SHA1

758ff4f935d14abf12b604ddfa07be50745a793d
SHA256

fb411599f7a697840f31bc8cae75550ca2adb1ccfe842471348550234e6a12e6
SHA512

aad25ce28f2f2e1617f1e36647f06428d3d6aad7e64b209f4ea4c5bcfeea2fcc3609518a99c19e81e95c2f1112eca983245f19eb31cafbf73f037d6ed8958712
SSDEEP

12288:UsAqMGHGSX1388BxGVI43GVpinJ2suEn23teGb/2tXw/+w/WpFaTf26qVN:UsBbW1SaUEn2deGbSXwWBUadN

Score

10^/10

persistence

Malware Config

Signatures

Modifies system executable filetype association 2 TTPs 1 IoCs

persistence

Modify Registry

T1112

Change Default File Association

T1042

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\SysWow64\\concp32.exe \"%1\" %*"	fb411599f7a697840f31bc8cae75550ca2adb1ccfe842471348550234e6a12e6.exe

Modifies Installed Components in the registry 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{A3D2F07-8B9A-11D5-EBA1-F78EEEEEE983}	fb411599f7a697840f31bc8cae75550ca2adb1ccfe842471348550234e6a12e6.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{A3D2F07-8B9A-11D5-EBA1-F78EEEEEE983}\StubPath = "msrvb32.exe"	fb411599f7a697840f31bc8cae75550ca2adb1ccfe842471348550234e6a12e6.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\VCL = "vcl32.exe"	fb411599f7a697840f31bc8cae75550ca2adb1ccfe842471348550234e6a12e6.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\VCL = "vcl32.exe"	fb411599f7a697840f31bc8cae75550ca2adb1ccfe842471348550234e6a12e6.exe

Drops file in System32 directory 6 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\vcl32.exe	fb411599f7a697840f31bc8cae75550ca2adb1ccfe842471348550234e6a12e6.exe
File opened for modification	C:\Windows\SysWOW64\vcl32.exe	fb411599f7a697840f31bc8cae75550ca2adb1ccfe842471348550234e6a12e6.exe
File created	C:\Windows\SysWOW64\msrvb32.exe	fb411599f7a697840f31bc8cae75550ca2adb1ccfe842471348550234e6a12e6.exe
File opened for modification	C:\Windows\SysWOW64\msrvb32.exe	fb411599f7a697840f31bc8cae75550ca2adb1ccfe842471348550234e6a12e6.exe
File created	C:\Windows\SysWOW64\concp32.exe	fb411599f7a697840f31bc8cae75550ca2adb1ccfe842471348550234e6a12e6.exe
File opened for modification	C:\Windows\SysWOW64\concp32.exe	fb411599f7a697840f31bc8cae75550ca2adb1ccfe842471348550234e6a12e6.exe

Program crash 2 IoCs

pid	pid_target	Process	procid_target
1296	4692	WerFault.exe	15
2896	4692	WerFault.exe	15

Modifies registry class 5 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{A3D2F07-8B9A-11D5-EBA1-F78EEEEEE983}	fb411599f7a697840f31bc8cae75550ca2adb1ccfe842471348550234e6a12e6.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{A3D2F07-8B9A-11D5-EBA1-F78EEEEEE983}\InprocServer32	fb411599f7a697840f31bc8cae75550ca2adb1ccfe842471348550234e6a12e6.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{A3D2F07-8B9A-11D5-EBA1-F78EEEEEE983}\sm = 01b8ec350471bd332433eee476ebe1f3	fb411599f7a697840f31bc8cae75550ca2adb1ccfe842471348550234e6a12e6.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{A3D2F07-8B9A-11D5-EBA1-F78EEEEEE983}\ax = 355373171dec7cd34edf17dc8be0cfbc	fb411599f7a697840f31bc8cae75550ca2adb1ccfe842471348550234e6a12e6.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\SysWow64\\concp32.exe \"%1\" %*"	fb411599f7a697840f31bc8cae75550ca2adb1ccfe842471348550234e6a12e6.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
4692	fb411599f7a697840f31bc8cae75550ca2adb1ccfe842471348550234e6a12e6.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4692 wrote to memory of 1296	4692	fb411599f7a697840f31bc8cae75550ca2adb1ccfe842471348550234e6a12e6.exe	85
PID 4692 wrote to memory of 1296	4692	fb411599f7a697840f31bc8cae75550ca2adb1ccfe842471348550234e6a12e6.exe	85
PID 4692 wrote to memory of 1296	4692	fb411599f7a697840f31bc8cae75550ca2adb1ccfe842471348550234e6a12e6.exe	85

C:\Users\Admin\AppData\Local\Temp\fb411599f7a697840f31bc8cae75550ca2adb1ccfe842471348550234e6a12e6.exe
"C:\Users\Admin\AppData\Local\Temp\fb411599f7a697840f31bc8cae75550ca2adb1ccfe842471348550234e6a12e6.exe"
1⤵
- Modifies system executable filetype association
- Modifies Installed Components in the registry
- Adds Run key to start application
- Drops file in System32 directory
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4692
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4692 -s 708
  2⤵
  - Program crash
  PID:1296
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4692 -s 708
  2⤵
  - Program crash
  PID:2896

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 4692 -ip 4692
1⤵
PID:2000

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Change Default File Association

1

T1042

Registry Run Keys / Startup Folder

2

T1060

Privilege Escalation

Defense Evasion

Modify Registry

3

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/4692-132-0x0000000000400000-0x0000000000435000-memory.dmp

Filesize
212KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads