2275d5df602fbd6932adcedb4522dd841fc0cd03b5b881fcf4e2fbfb81d969e0

General

Target

be73a02543c991d34fb0f7c1a53efeb0N.exe
Size

1.2MB
MD5

be73a02543c991d34fb0f7c1a53efeb0
SHA1

1a4cbce2a0dec71f7ebdd95192a8eeecf4f28aa5
SHA256

2275d5df602fbd6932adcedb4522dd841fc0cd03b5b881fcf4e2fbfb81d969e0
SHA512

06da716aad88f0a6316772a55ee840d884c370261eed13a3722f9248eb8b233e9692e68cc94ece77823450e2cd63d6581f814ce496dc5cbc8e14d9b688bde8aa
SSDEEP

24576:xgu5YyCtCCm0BmmvFimm00h2kkkkK4kXkkkkkkkkhLX3a20R0v50+YR:xgu5RCtCmizbazR0vk

Score

10^/10

discovery persistence

Malware Config

Signatures

Adds autorun key to be loaded by Explorer.exe on startup 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\ShellServiceObjectDelayLoad	be73a02543c991d34fb0f7c1a53efeb0N.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\ShellServiceObjectDelayLoad\Web Event Logger = "{79FAA099-1BAE-816E-D711-115290CEE717}"	be73a02543c991d34fb0f7c1a53efeb0N.exe

Executes dropped EXE 1 IoCs

pid	Process
2680	Fkckeh32.exe

Loads dropped DLL 6 IoCs

pid	Process
2432	be73a02543c991d34fb0f7c1a53efeb0N.exe
2432	be73a02543c991d34fb0f7c1a53efeb0N.exe
2800	WerFault.exe
2800	WerFault.exe
2800	WerFault.exe
2800	WerFault.exe

Drops file in System32 directory 3 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\Fkckeh32.exe	be73a02543c991d34fb0f7c1a53efeb0N.exe
File opened for modification	C:\Windows\SysWOW64\Fkckeh32.exe	be73a02543c991d34fb0f7c1a53efeb0N.exe
File created	C:\Windows\SysWOW64\Clkmne32.dll	be73a02543c991d34fb0f7c1a53efeb0N.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2800	2680	WerFault.exe	30

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	be73a02543c991d34fb0f7c1a53efeb0N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Fkckeh32.exe

Modifies registry class 6 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{79FAA099-1BAE-816E-D711-115290CEE717}	be73a02543c991d34fb0f7c1a53efeb0N.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{79FAA099-1BAE-816E-D711-115290CEE717}\InProcServer32\ = "C:\\Windows\\SysWow64\\Clkmne32.dll"	be73a02543c991d34fb0f7c1a53efeb0N.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{79FAA099-1BAE-816E-D711-115290CEE717}\InProcServer32\ThreadingModel = "Apartment"	be73a02543c991d34fb0f7c1a53efeb0N.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{79FAA099-1BAE-816E-D711-115290CEE717}\InProcServer32	be73a02543c991d34fb0f7c1a53efeb0N.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node	be73a02543c991d34fb0f7c1a53efeb0N.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID	be73a02543c991d34fb0f7c1a53efeb0N.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2432 wrote to memory of 2680	2432	be73a02543c991d34fb0f7c1a53efeb0N.exe	30
PID 2432 wrote to memory of 2680	2432	be73a02543c991d34fb0f7c1a53efeb0N.exe	30
PID 2432 wrote to memory of 2680	2432	be73a02543c991d34fb0f7c1a53efeb0N.exe	30
PID 2432 wrote to memory of 2680	2432	be73a02543c991d34fb0f7c1a53efeb0N.exe	30
PID 2680 wrote to memory of 2800	2680	Fkckeh32.exe	31
PID 2680 wrote to memory of 2800	2680	Fkckeh32.exe	31
PID 2680 wrote to memory of 2800	2680	Fkckeh32.exe	31
PID 2680 wrote to memory of 2800	2680	Fkckeh32.exe	31

C:\Users\Admin\AppData\Local\Temp\be73a02543c991d34fb0f7c1a53efeb0N.exe
"C:\Users\Admin\AppData\Local\Temp\be73a02543c991d34fb0f7c1a53efeb0N.exe"
1⤵
- Adds autorun key to be loaded by Explorer.exe on startup
- Loads dropped DLL
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:2432
- C:\Windows\SysWOW64\Fkckeh32.exe
  C:\Windows\system32\Fkckeh32.exe
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2680
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2680 -s 140
    3⤵
    - Loads dropped DLL
    - Program crash
    PID:2800

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

\Windows\SysWOW64\Fkckeh32.exe

Filesize
1.2MB

MD5
9c7bdbc31b5cb583ac7c5887b7d27f2b

SHA1
043cf6cf39bc63cd6c1dc200b127fefe779fb8f3

SHA256
ed04d9b98bbcf0569e37e18eeea3bd2663c81ee534c026ae99f6026730909cbc

SHA512
21e69167703aff2c7c307f37fe3f45337a26179ae10f05cd817d585c7e4cb4539dc5bff9ae0b04d060670dda0e1af44c86c56b53830f52350f15a7c9798ebe6f

Download Submit
memory/2432-0-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/2432-7-0x0000000000250000-0x0000000000294000-memory.dmp

Filesize
272KB

Download
memory/2432-18-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/2432-19-0x0000000000250000-0x0000000000294000-memory.dmp

Filesize
272KB

Download
memory/2680-13-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads