343fd75cc563092616b48e1cad539096fc8250edbefa33f9671b02ca8545aa56

General

Target

343fd75cc563092616b48e1cad539096fc8250edbefa33f9671b02ca8545aa56.exe
Size

56KB
MD5

0b9c1f968f404134eea415ca658ae4aa
SHA1

63b782e7ee953ed909e78d13ed255daef91a846e
SHA256

343fd75cc563092616b48e1cad539096fc8250edbefa33f9671b02ca8545aa56
SHA512

36a0ae6b78a6676e17bdf6717016cc426d813f50e3587f81ec63baf69862431e202729599a70a7bebeb1214b51cde4a5a5cdb1b203bb7121eb72cf0060666514
SSDEEP

1536:Qgk0lJWdVExI1hY6CDUDQSC+gk0lJWdVExI1hY6CDUDQSqQ:q0lmVQI1hYrunCo0lmVQI1hYrunqQ

Score

8^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1100	ntldr.exe

Loads dropped DLL 6 IoCs

pid	Process
1200	343fd75cc563092616b48e1cad539096fc8250edbefa33f9671b02ca8545aa56.exe
1200	343fd75cc563092616b48e1cad539096fc8250edbefa33f9671b02ca8545aa56.exe
2024	WerFault.exe
2024	WerFault.exe
2024	WerFault.exe
2024	WerFault.exe

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Run	343fd75cc563092616b48e1cad539096fc8250edbefa33f9671b02ca8545aa56.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\NT4 hosting service = "C:\\Windows\\system32\\ntldr.exe"	343fd75cc563092616b48e1cad539096fc8250edbefa33f9671b02ca8545aa56.exe
Key created	\REGISTRY\MACHINE\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Run	ntldr.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\NT4 hosting service = "C:\\Windows\\system32\\ntldr.exe"	ntldr.exe

Drops file in System32 directory 5 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\ntldr.exe	ntldr.exe
File opened for modification	C:\Windows\SysWOW64\ntldr.exe	343fd75cc563092616b48e1cad539096fc8250edbefa33f9671b02ca8545aa56.exe
File created	C:\Windows\SysWOW64\ntldr.exe	343fd75cc563092616b48e1cad539096fc8250edbefa33f9671b02ca8545aa56.exe
File opened for modification	C:\Windows\SysWOW64\RCX197B.tmp	343fd75cc563092616b48e1cad539096fc8250edbefa33f9671b02ca8545aa56.exe
File opened for modification	C:\Windows\SysWOW64\ntldr.exe	ntldr.exe

Program crash 2 IoCs

pid	pid_target	Process	procid_target
268	1200	WerFault.exe	26
2024	1100	WerFault.exe	27

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 1200 wrote to memory of 1100	1200	343fd75cc563092616b48e1cad539096fc8250edbefa33f9671b02ca8545aa56.exe	27
PID 1200 wrote to memory of 1100	1200	343fd75cc563092616b48e1cad539096fc8250edbefa33f9671b02ca8545aa56.exe	27
PID 1200 wrote to memory of 1100	1200	343fd75cc563092616b48e1cad539096fc8250edbefa33f9671b02ca8545aa56.exe	27
PID 1200 wrote to memory of 1100	1200	343fd75cc563092616b48e1cad539096fc8250edbefa33f9671b02ca8545aa56.exe	27
PID 1200 wrote to memory of 268	1200	343fd75cc563092616b48e1cad539096fc8250edbefa33f9671b02ca8545aa56.exe	28
PID 1200 wrote to memory of 268	1200	343fd75cc563092616b48e1cad539096fc8250edbefa33f9671b02ca8545aa56.exe	28
PID 1200 wrote to memory of 268	1200	343fd75cc563092616b48e1cad539096fc8250edbefa33f9671b02ca8545aa56.exe	28
PID 1200 wrote to memory of 268	1200	343fd75cc563092616b48e1cad539096fc8250edbefa33f9671b02ca8545aa56.exe	28
PID 1100 wrote to memory of 2024	1100	ntldr.exe	29
PID 1100 wrote to memory of 2024	1100	ntldr.exe	29
PID 1100 wrote to memory of 2024	1100	ntldr.exe	29
PID 1100 wrote to memory of 2024	1100	ntldr.exe	29

System policy modification 1 TTPs 6 IoCs

evasion

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer	343fd75cc563092616b48e1cad539096fc8250edbefa33f9671b02ca8545aa56.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\NoDriveAutoRun = "0"	343fd75cc563092616b48e1cad539096fc8250edbefa33f9671b02ca8545aa56.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\NoDriveTypeAutoRun = "0"	343fd75cc563092616b48e1cad539096fc8250edbefa33f9671b02ca8545aa56.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer	ntldr.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\NoDriveAutoRun = "0"	ntldr.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\NoDriveTypeAutoRun = "0"	ntldr.exe

C:\Users\Admin\AppData\Local\Temp\343fd75cc563092616b48e1cad539096fc8250edbefa33f9671b02ca8545aa56.exe
"C:\Users\Admin\AppData\Local\Temp\343fd75cc563092616b48e1cad539096fc8250edbefa33f9671b02ca8545aa56.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- Drops file in System32 directory
- Suspicious use of WriteProcessMemory
- System policy modification
PID:1200
- C:\Windows\SysWOW64\ntldr.exe
  "C:\Windows\system32\ntldr.exe"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Drops file in System32 directory
  - Suspicious use of WriteProcessMemory
  - System policy modification
  PID:1100
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1100 -s 116
    3⤵
    - Loads dropped DLL
    - Program crash
    PID:2024
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1200 -s 116
  2⤵
  - Program crash
  PID:268

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

2

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Windows\SysWOW64\ntldr.exe

Filesize
24KB

MD5
45d6e9d9640bbe2647d907e543b5cfb3

SHA1
f343dcc032f7c287b1f7c47d75280e961c579129

SHA256
d81b6465f323347d3474e4a89d4da28f750ec106554e57729def2e2be07062cc

SHA512
608759a95bc6375c677e32486b41d15d6c5d9f9a5b7e2623d1331d13eea982786dfeae17da4b576b504e8419f833e3789d185898ae067eafe5286b0069c97f9f

Download Submit
C:\Windows\SysWOW64\ntldr.exe

Filesize
24KB

MD5
45d6e9d9640bbe2647d907e543b5cfb3

SHA1
f343dcc032f7c287b1f7c47d75280e961c579129

SHA256
d81b6465f323347d3474e4a89d4da28f750ec106554e57729def2e2be07062cc

SHA512
608759a95bc6375c677e32486b41d15d6c5d9f9a5b7e2623d1331d13eea982786dfeae17da4b576b504e8419f833e3789d185898ae067eafe5286b0069c97f9f

Download Submit
\Windows\SysWOW64\ntldr.exe

Filesize
24KB

MD5
45d6e9d9640bbe2647d907e543b5cfb3

SHA1
f343dcc032f7c287b1f7c47d75280e961c579129

SHA256
d81b6465f323347d3474e4a89d4da28f750ec106554e57729def2e2be07062cc

SHA512
608759a95bc6375c677e32486b41d15d6c5d9f9a5b7e2623d1331d13eea982786dfeae17da4b576b504e8419f833e3789d185898ae067eafe5286b0069c97f9f

Download Submit
\Windows\SysWOW64\ntldr.exe

Filesize
24KB

MD5
45d6e9d9640bbe2647d907e543b5cfb3

SHA1
f343dcc032f7c287b1f7c47d75280e961c579129

SHA256
d81b6465f323347d3474e4a89d4da28f750ec106554e57729def2e2be07062cc

SHA512
608759a95bc6375c677e32486b41d15d6c5d9f9a5b7e2623d1331d13eea982786dfeae17da4b576b504e8419f833e3789d185898ae067eafe5286b0069c97f9f

Download Submit
\Windows\SysWOW64\ntldr.exe

Filesize
24KB

MD5
45d6e9d9640bbe2647d907e543b5cfb3

SHA1
f343dcc032f7c287b1f7c47d75280e961c579129

SHA256
d81b6465f323347d3474e4a89d4da28f750ec106554e57729def2e2be07062cc

SHA512
608759a95bc6375c677e32486b41d15d6c5d9f9a5b7e2623d1331d13eea982786dfeae17da4b576b504e8419f833e3789d185898ae067eafe5286b0069c97f9f

Download Submit
\Windows\SysWOW64\ntldr.exe

Filesize
24KB

MD5
45d6e9d9640bbe2647d907e543b5cfb3

SHA1
f343dcc032f7c287b1f7c47d75280e961c579129

SHA256
d81b6465f323347d3474e4a89d4da28f750ec106554e57729def2e2be07062cc

SHA512
608759a95bc6375c677e32486b41d15d6c5d9f9a5b7e2623d1331d13eea982786dfeae17da4b576b504e8419f833e3789d185898ae067eafe5286b0069c97f9f

Download Submit
\Windows\SysWOW64\ntldr.exe

Filesize
24KB

MD5
45d6e9d9640bbe2647d907e543b5cfb3

SHA1
f343dcc032f7c287b1f7c47d75280e961c579129

SHA256
d81b6465f323347d3474e4a89d4da28f750ec106554e57729def2e2be07062cc

SHA512
608759a95bc6375c677e32486b41d15d6c5d9f9a5b7e2623d1331d13eea982786dfeae17da4b576b504e8419f833e3789d185898ae067eafe5286b0069c97f9f

Download Submit
\Windows\SysWOW64\ntldr.exe

Filesize
24KB

MD5
45d6e9d9640bbe2647d907e543b5cfb3

SHA1
f343dcc032f7c287b1f7c47d75280e961c579129

SHA256
d81b6465f323347d3474e4a89d4da28f750ec106554e57729def2e2be07062cc

SHA512
608759a95bc6375c677e32486b41d15d6c5d9f9a5b7e2623d1331d13eea982786dfeae17da4b576b504e8419f833e3789d185898ae067eafe5286b0069c97f9f

Download Submit
memory/1200-54-0x0000000075AC1000-0x0000000075AC3000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads