642a91be5044234d6fa5c95d82f735ac742a9fcde9030c35532e7b8a20335702

General

Target

642a91be5044234d6fa5c95d82f735ac742a9fcde9030c35532e7b8a20335702.exe
Size

78KB
MD5

adac3c9737360cb44ba585eee7b90b5b
SHA1

f971e51785ef4c3ff6faabc24c1fb88368779320
SHA256

642a91be5044234d6fa5c95d82f735ac742a9fcde9030c35532e7b8a20335702
SHA512

5bd8ce73a42ab2c6c5a2d7690354bd92f43f267d81740667576d6a63fdc8f923b6fe881a0e18b8f34a3562f63abbd0a829c0128fb0cf5dea77aba7e9674dd380
SSDEEP

1536:NtE267gRhvZsnc6kDsYoACX6HdOiVQRN+zL20gJi1ie:bBfhtDFnCq9OiVmgzL20WKt

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
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\ShellServiceObjectDelayLoad\Web Event Logger = "{79FEACFF-FFCE-815E-A900-316290B5B738}"	642a91be5044234d6fa5c95d82f735ac742a9fcde9030c35532e7b8a20335702.exe
Key created	\REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Windows\CurrentVersion\ShellServiceObjectDelayLoad	642a91be5044234d6fa5c95d82f735ac742a9fcde9030c35532e7b8a20335702.exe

Executes dropped EXE 1 IoCs

pid	Process
2188	Fkkeclfh.exe

Drops file in System32 directory 3 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\Chembclp.dll	642a91be5044234d6fa5c95d82f735ac742a9fcde9030c35532e7b8a20335702.exe
File created	C:\Windows\SysWOW64\Fkkeclfh.exe	642a91be5044234d6fa5c95d82f735ac742a9fcde9030c35532e7b8a20335702.exe
File opened for modification	C:\Windows\SysWOW64\Fkkeclfh.exe	642a91be5044234d6fa5c95d82f735ac742a9fcde9030c35532e7b8a20335702.exe

Program crash 2 IoCs

pid	pid_target	Process	procid_target
4940	2188	WerFault.exe	84
4464	2188	WerFault.exe	84

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	Fkkeclfh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	642a91be5044234d6fa5c95d82f735ac742a9fcde9030c35532e7b8a20335702.exe

Modifies registry class 6 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{79FEACFF-FFCE-815E-A900-316290B5B738}\InProcServer32	642a91be5044234d6fa5c95d82f735ac742a9fcde9030c35532e7b8a20335702.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node	642a91be5044234d6fa5c95d82f735ac742a9fcde9030c35532e7b8a20335702.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID	642a91be5044234d6fa5c95d82f735ac742a9fcde9030c35532e7b8a20335702.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{79FEACFF-FFCE-815E-A900-316290B5B738}	642a91be5044234d6fa5c95d82f735ac742a9fcde9030c35532e7b8a20335702.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{79FEACFF-FFCE-815E-A900-316290B5B738}\InProcServer32\ = "C:\\Windows\\SysWow64\\Chembclp.dll"	642a91be5044234d6fa5c95d82f735ac742a9fcde9030c35532e7b8a20335702.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{79FEACFF-FFCE-815E-A900-316290B5B738}\InProcServer32\ThreadingModel = "Apartment"	642a91be5044234d6fa5c95d82f735ac742a9fcde9030c35532e7b8a20335702.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2644 wrote to memory of 2188	2644	642a91be5044234d6fa5c95d82f735ac742a9fcde9030c35532e7b8a20335702.exe	84
PID 2644 wrote to memory of 2188	2644	642a91be5044234d6fa5c95d82f735ac742a9fcde9030c35532e7b8a20335702.exe	84
PID 2644 wrote to memory of 2188	2644	642a91be5044234d6fa5c95d82f735ac742a9fcde9030c35532e7b8a20335702.exe	84

C:\Users\Admin\AppData\Local\Temp\642a91be5044234d6fa5c95d82f735ac742a9fcde9030c35532e7b8a20335702.exe
"C:\Users\Admin\AppData\Local\Temp\642a91be5044234d6fa5c95d82f735ac742a9fcde9030c35532e7b8a20335702.exe"
1⤵
- Adds autorun key to be loaded by Explorer.exe on startup
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:2644
- C:\Windows\SysWOW64\Fkkeclfh.exe
  C:\Windows\system32\Fkkeclfh.exe
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:2188
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2188 -s 396
    3⤵
    - Program crash
    PID:4940
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2188 -s 400
    3⤵
    - Program crash
    PID:4464

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2188 -ip 2188
1⤵
PID:3512

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 2188 -ip 2188
1⤵
PID:2292

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

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Windows\SysWOW64\Fkkeclfh.exe

Filesize
78KB

MD5
c19240975db77be2e6f8cc74a3b73b90

SHA1
1746bdf65ca21e4791ca5c65a981a76df96df4a2

SHA256
5adf5d5ead3e49a9bf5da089bc878e7178c02b015d95cbd4b34b4fac9857fce8

SHA512
055bc69c9089a8b038f616c5c2d2829b301c0b7e952b17efdcf20577a8a2d9ad66fa1f6723eb6461c73a382edaa7d474e789176c8fd480ae4826c702c648ee1c

Download Submit
memory/2188-8-0x0000000000400000-0x0000000000441000-memory.dmp

Filesize
260KB

Download
memory/2188-10-0x0000000000400000-0x0000000000441000-memory.dmp

Filesize
260KB

Download
memory/2644-0-0x0000000000400000-0x0000000000441000-memory.dmp

Filesize
260KB

Download
memory/2644-1-0x0000000000431000-0x0000000000432000-memory.dmp

Filesize
4KB

Download
memory/2644-11-0x0000000000400000-0x0000000000441000-memory.dmp

Filesize
260KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads