9ba5c4f0257e507ff6e841013401d77ff3b1d3a63a41c2dfdb4fe9a57a88eac9

General

Target

9ba5c4f0257e507ff6e841013401d77ff3b1d3a63a41c2dfdb4fe9a57a88eac9.exe
Size

840KB
MD5

272d3231049d381a09d009f101c07b40
SHA1

452486b04dc2da20ae26511eddd5da243f28cc91
SHA256

9ba5c4f0257e507ff6e841013401d77ff3b1d3a63a41c2dfdb4fe9a57a88eac9
SHA512

60f4a69cfe9efda8b7cd305c22522b4deee66e16807028c652b46a619d02eb53db39df341900cb728bfb2210dabcc08e7d05c991119f4413f7ac12d776e4a61f
SSDEEP

12288:ckolW+pPv+AsOQSH1u/eHnJELfdiKSGeW/7B3O1m1l2bDi5ozUinkL:RoECPmAbsEnyLVMYBdl2bDi6QqkL

Score

8^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
3624	meprotection.exe

Enumerates connected drives 3 TTPs 22 IoCs

Attempts to read the root path of hard drives other than the default C: drive.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
File opened (read-only)	\??\J:	meprotection.exe
File opened (read-only)	\??\L:	meprotection.exe
File opened (read-only)	\??\S:	meprotection.exe
File opened (read-only)	\??\U:	meprotection.exe
File opened (read-only)	\??\Y:	meprotection.exe
File opened (read-only)	\??\E:	meprotection.exe
File opened (read-only)	\??\I:	meprotection.exe
File opened (read-only)	\??\R:	meprotection.exe
File opened (read-only)	\??\X:	meprotection.exe
File opened (read-only)	\??\P:	meprotection.exe
File opened (read-only)	\??\Q:	meprotection.exe
File opened (read-only)	\??\T:	meprotection.exe
File opened (read-only)	\??\V:	meprotection.exe
File opened (read-only)	\??\F:	meprotection.exe
File opened (read-only)	\??\G:	meprotection.exe
File opened (read-only)	\??\K:	meprotection.exe
File opened (read-only)	\??\M:	meprotection.exe
File opened (read-only)	\??\W:	meprotection.exe
File opened (read-only)	\??\Z:	meprotection.exe
File opened (read-only)	\??\H:	meprotection.exe
File opened (read-only)	\??\N:	meprotection.exe
File opened (read-only)	\??\O:	meprotection.exe

Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

Bootkits write to the MBR to gain persistence at a level below the operating system.

bootkit persistence

Bootkit

T1067

description	ioc	Process
File opened for modification	\??\PhysicalDrive0	meprotection.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Program crash 5 IoCs

pid	pid_target	Process	procid_target
1340	3624	WerFault.exe	82
2232	3624	WerFault.exe	82
3748	3624	WerFault.exe	82
4768	3624	WerFault.exe	82
4452	3624	WerFault.exe	82

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3476	9ba5c4f0257e507ff6e841013401d77ff3b1d3a63a41c2dfdb4fe9a57a88eac9.exe
3476	9ba5c4f0257e507ff6e841013401d77ff3b1d3a63a41c2dfdb4fe9a57a88eac9.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
3476	9ba5c4f0257e507ff6e841013401d77ff3b1d3a63a41c2dfdb4fe9a57a88eac9.exe

Suspicious use of FindShellTrayWindow 3 IoCs

pid	Process
3624	meprotection.exe
3624	meprotection.exe
3624	meprotection.exe

Suspicious use of SendNotifyMessage 3 IoCs

pid	Process
3624	meprotection.exe
3624	meprotection.exe
3624	meprotection.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
3624	meprotection.exe
3624	meprotection.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3476 wrote to memory of 3624	3476	9ba5c4f0257e507ff6e841013401d77ff3b1d3a63a41c2dfdb4fe9a57a88eac9.exe	82
PID 3476 wrote to memory of 3624	3476	9ba5c4f0257e507ff6e841013401d77ff3b1d3a63a41c2dfdb4fe9a57a88eac9.exe	82
PID 3476 wrote to memory of 3624	3476	9ba5c4f0257e507ff6e841013401d77ff3b1d3a63a41c2dfdb4fe9a57a88eac9.exe	82

C:\Users\Admin\AppData\Local\Temp\9ba5c4f0257e507ff6e841013401d77ff3b1d3a63a41c2dfdb4fe9a57a88eac9.exe
"C:\Users\Admin\AppData\Local\Temp\9ba5c4f0257e507ff6e841013401d77ff3b1d3a63a41c2dfdb4fe9a57a88eac9.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: RenamesItself
- Suspicious use of WriteProcessMemory
PID:3476
- C:\ProgramData\meprotection.exe
  C:\ProgramData\meprotection.exe
  2⤵
  - Executes dropped EXE
  - Enumerates connected drives
  - Writes to the Master Boot Record (MBR)
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  - Suspicious use of SetWindowsHookEx
  PID:3624
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3624 -s 752
    3⤵
    - Program crash
    PID:1340
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3624 -s 752
    3⤵
    - Program crash
    PID:2232
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3624 -s 1100
    3⤵
    - Program crash
    PID:3748
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3624 -s 1120
    3⤵
    - Program crash
    PID:4768
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3624 -s 1160
    3⤵
    - Program crash
    PID:4452

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3624 -ip 3624
1⤵
PID:680

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 484 -p 3624 -ip 3624
1⤵
PID:4852

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 492 -p 3624 -ip 3624
1⤵
PID:2476

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 3624 -ip 3624
1⤵
PID:2260

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 516 -p 3624 -ip 3624
1⤵
PID:4620

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Bootkit

1

T1067

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Peripheral Device Discovery

Query Registry

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\ProgramData\meprotection.exe

Filesize
825KB

MD5
4fc05dfaa3b4ec316b01a1d58668a00d

SHA1
36e25dc547b781b9b309730ca0aaa9b751a7331d

SHA256
11f3733e9c98fbb438862a1de26bb602035923b1d5f6183dfcbde29bfbe73f72

SHA512
1a7b23165777342b1ee42537b4fd1103cd1c7b170ce74e6a0550d25bc2c73f8742322042217b59ef6002bd74c4bffa3c20c7661f446ba6ed81ba9737ebc24a92

Download Submit
C:\ProgramData\meprotection.exe

Filesize
825KB

MD5
4fc05dfaa3b4ec316b01a1d58668a00d

SHA1
36e25dc547b781b9b309730ca0aaa9b751a7331d

SHA256
11f3733e9c98fbb438862a1de26bb602035923b1d5f6183dfcbde29bfbe73f72

SHA512
1a7b23165777342b1ee42537b4fd1103cd1c7b170ce74e6a0550d25bc2c73f8742322042217b59ef6002bd74c4bffa3c20c7661f446ba6ed81ba9737ebc24a92

Download Submit
memory/3476-132-0x0000000000400000-0x00000000004EA000-memory.dmp

Filesize
936KB

Download
memory/3476-133-0x0000000000400000-0x00000000004EA000-memory.dmp

Filesize
936KB

Download
memory/3476-134-0x0000000000400000-0x00000000004EA000-memory.dmp

Filesize
936KB

Download
memory/3476-142-0x0000000000400000-0x00000000004EA000-memory.dmp

Filesize
936KB

Download
memory/3624-138-0x0000000000400000-0x0000000000A1C000-memory.dmp

Filesize
6.1MB

Download
memory/3624-139-0x0000000000400000-0x0000000000A1C000-memory.dmp

Filesize
6.1MB

Download
memory/3624-141-0x0000000000400000-0x0000000000A1C000-memory.dmp

Filesize
6.1MB

Download

Analysis

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