12a8944b51b66b76945d6e39e43d551bc242691bb03467db608f047c2d5a7749

General

Target

12a8944b51b66b76945d6e39e43d551bc242691bb03467db608f047c2d5a7749.exe
Size

78KB
MD5

efc57ed49a29d9c43f780ac57d9383ea
SHA1

6feb772dab15a7004cccefd6e77aa47cafbb89ed
SHA256

12a8944b51b66b76945d6e39e43d551bc242691bb03467db608f047c2d5a7749
SHA512

37f09dc9adf4b554d604f35ce7a4d5527acbe9d6d3b6cdcb7a81c5e4d06bc22131cb42a5c611abf9088b61a9ce7b01b64b5328401abaec73471d2555d3e1c9b3
SSDEEP

1536:zITaqTFmav82AzaF1Pwr4xpimiwgaRS3B7A4HK:EutO4kwsamiRW2q4HK

Score

10^/10

evasion persistence trojan

Malware Config

Signatures

Modifies security service 2 TTPs 1 IoCs

evasion

Modify Registry

T1112

Windows Service

T1543.003

Processes:

12a8944b51b66b76945d6e39e43d551bc242691bb03467db608f047c2d5a7749.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\wuauserv\Start = "4"	12a8944b51b66b76945d6e39e43d551bc242691bb03467db608f047c2d5a7749.exe

Windows security bypass 2 TTPs 6 IoCs

evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

T1112

Processes:

12a8944b51b66b76945d6e39e43d551bc242691bb03467db608f047c2d5a7749.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallOverride = "1"	12a8944b51b66b76945d6e39e43d551bc242691bb03467db608f047c2d5a7749.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallDisableNotify = "1"	12a8944b51b66b76945d6e39e43d551bc242691bb03467db608f047c2d5a7749.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusOverride = "1"	12a8944b51b66b76945d6e39e43d551bc242691bb03467db608f047c2d5a7749.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1"	12a8944b51b66b76945d6e39e43d551bc242691bb03467db608f047c2d5a7749.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesOverride = "1"	12a8944b51b66b76945d6e39e43d551bc242691bb03467db608f047c2d5a7749.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1"	12a8944b51b66b76945d6e39e43d551bc242691bb03467db608f047c2d5a7749.exe

Executes dropped EXE 2 IoCs

Processes:

1640427011.exe131020522.exe

pid process

4804 1640427011.exe
1372 131020522.exe

pid	process
4804	1640427011.exe
1372	131020522.exe

Windows security modification 2 TTPs 7 IoCs

evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

T1112

Processes:

12a8944b51b66b76945d6e39e43d551bc242691bb03467db608f047c2d5a7749.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiSpywareOverride = "1"	12a8944b51b66b76945d6e39e43d551bc242691bb03467db608f047c2d5a7749.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusOverride = "1"	12a8944b51b66b76945d6e39e43d551bc242691bb03467db608f047c2d5a7749.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1"	12a8944b51b66b76945d6e39e43d551bc242691bb03467db608f047c2d5a7749.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesOverride = "1"	12a8944b51b66b76945d6e39e43d551bc242691bb03467db608f047c2d5a7749.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1"	12a8944b51b66b76945d6e39e43d551bc242691bb03467db608f047c2d5a7749.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallOverride = "1"	12a8944b51b66b76945d6e39e43d551bc242691bb03467db608f047c2d5a7749.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallDisableNotify = "1"	12a8944b51b66b76945d6e39e43d551bc242691bb03467db608f047c2d5a7749.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

12a8944b51b66b76945d6e39e43d551bc242691bb03467db608f047c2d5a7749.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2177723727-746291240-1644359950-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Windows Settings = "C:\\Users\\Admin\\systrlvnxs.exe"	12a8944b51b66b76945d6e39e43d551bc242691bb03467db608f047c2d5a7749.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Windows Settings = "C:\\Windows\\systrlvnxs.exe"	12a8944b51b66b76945d6e39e43d551bc242691bb03467db608f047c2d5a7749.exe

Drops file in Windows directory 2 IoCs

Processes:

12a8944b51b66b76945d6e39e43d551bc242691bb03467db608f047c2d5a7749.exe

description	ioc	process
File created	C:\Windows\systrlvnxs.exe	12a8944b51b66b76945d6e39e43d551bc242691bb03467db608f047c2d5a7749.exe
File opened for modification	C:\Windows\systrlvnxs.exe	12a8944b51b66b76945d6e39e43d551bc242691bb03467db608f047c2d5a7749.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

12a8944b51b66b76945d6e39e43d551bc242691bb03467db608f047c2d5a7749.exe

description	pid	process	target process
PID 3972 wrote to memory of 4804	3972	12a8944b51b66b76945d6e39e43d551bc242691bb03467db608f047c2d5a7749.exe	1640427011.exe
PID 3972 wrote to memory of 4804	3972	12a8944b51b66b76945d6e39e43d551bc242691bb03467db608f047c2d5a7749.exe	1640427011.exe
PID 3972 wrote to memory of 4804	3972	12a8944b51b66b76945d6e39e43d551bc242691bb03467db608f047c2d5a7749.exe	1640427011.exe
PID 3972 wrote to memory of 1372	3972	12a8944b51b66b76945d6e39e43d551bc242691bb03467db608f047c2d5a7749.exe	131020522.exe
PID 3972 wrote to memory of 1372	3972	12a8944b51b66b76945d6e39e43d551bc242691bb03467db608f047c2d5a7749.exe	131020522.exe
PID 3972 wrote to memory of 1372	3972	12a8944b51b66b76945d6e39e43d551bc242691bb03467db608f047c2d5a7749.exe	131020522.exe

C:\Users\Admin\AppData\Local\Temp\12a8944b51b66b76945d6e39e43d551bc242691bb03467db608f047c2d5a7749.exe
"C:\Users\Admin\AppData\Local\Temp\12a8944b51b66b76945d6e39e43d551bc242691bb03467db608f047c2d5a7749.exe"
1⤵
- Modifies security service
- Windows security bypass
- Windows security modification
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:3972
- C:\Users\Admin\AppData\Local\Temp\1640427011.exe
  C:\Users\Admin\AppData\Local\Temp\1640427011.exe
  2⤵
  - Executes dropped EXE
  PID:4804
- C:\Users\Admin\AppData\Local\Temp\131020522.exe
  C:\Users\Admin\AppData\Local\Temp\131020522.exe
  2⤵
  - Executes dropped EXE
  PID:1372

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

Create or Modify System Process

1

T1543

Windows Service

1

T1543.003

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Create or Modify System Process

1

T1543

Windows Service

1

T1543.003

Defense Evasion

Impair Defenses

2

T1562

Disable or Modify Tools

Modify Registry

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\UM8YFV59\3[1]

Filesize
86KB

MD5
fe1e93f12cca3f7c0c897ef2084e1778

SHA1
fb588491ddad8b24ea555a6a2727e76cec1fade3

SHA256
2ebc4a92f4fdc27d4ab56e57058575a8b18adb076cbd30feea2ecdc8b7fcd41f

SHA512
36e0524c465187ae9ad207c724aee45bcd61cfd3fa66a79f9434d24fcbadc0a743834d5e808e6041f3bd88e75deb5afd34193574f005ed97e4b17c6b0388cb93

Download Submit
C:\Users\Admin\AppData\Local\Temp\131020522.exe

Filesize
8KB

MD5
c34a248f132e739652407b0aa8c978cd

SHA1
f7f05357fd6ab2d1a11e3427ee46626bb6ad94ee

SHA256
4c9c53256ff65c9930c38b193537ad510930c25052231c7eef3715057b79e578

SHA512
f7999e8b903fbc2e715d6d7e7bb0bc421cef79dbd61f6d94f18fa63c99a420d2a70d4b23fa0b8ec05d073c954aec718be588ada718bb0f5aacd618ad815f2703

Download Submit
C:\Users\Admin\AppData\Local\Temp\1640427011.exe

Filesize
78KB

MD5
efc57ed49a29d9c43f780ac57d9383ea

SHA1
6feb772dab15a7004cccefd6e77aa47cafbb89ed

SHA256
12a8944b51b66b76945d6e39e43d551bc242691bb03467db608f047c2d5a7749

SHA512
37f09dc9adf4b554d604f35ce7a4d5527acbe9d6d3b6cdcb7a81c5e4d06bc22131cb42a5c611abf9088b61a9ce7b01b64b5328401abaec73471d2555d3e1c9b3

Download Submit

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads