asyncrat | ebd4b1ab90350e2f13d46f2a356d5a637d5bec704cf3af211c43a89cb11dd142

General

Target

Loader.exe
Size

63KB
MD5

56c640c4191b4b95ba344032afd14e77
SHA1

c93a0fd32b46718ca3bc7d1c78ae6236b88ef3c9
SHA256

ebd4b1ab90350e2f13d46f2a356d5a637d5bec704cf3af211c43a89cb11dd142
SHA512

617512f96443b7cc9cc315d2eb0322d8b359218d459e80821563336b67ac263f1da9b00c75bde73320d6540572552c47b436c683c862f19b5ed470273001e63e
SSDEEP

768:kvsM2sk/978SQC8A+XjivRIOdJD7P7DEhfW1+T4iSBGHmDbDOphLoX34/uSuwdph:v1/MED7jhBYUbghi3U5uwdpqKmY7

Score

10^/10

asyncrat default evasion rat trojan

Malware Config

Extracted

Family

asyncrat

Botnet

Default

C2

technical-southwest.gl.at.ply.gg:58694

Attributes

delay
1
install
false
install_folder
%AppData%

aes.plain

Signatures

AsyncRat
AsyncRAT is designed to remotely monitor and control other computers written in C#.
rat asyncrat
Asyncrat family
asyncrat

Modifies Windows Defender Real-time Protection settings 3 TTPs 4 IoCs

evasion trojan

Modify Registry

T1112

Windows Service

T1543.003

Disable or Modify Tools

T1562.001

Processes:

Loader.exe

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableScanOnRealtimeEnable = "1"	Loader.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection	Loader.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableBehaviorMonitoring = "1"	Loader.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableOnAccessProtection = "1"	Loader.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

Loader.exe

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Control Panel\International\Geo\Nation	Loader.exe

Windows security modification 2 TTPs 1 IoCs

evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

T1112

Processes:

Loader.exe

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Features\TamperProtection = "0"	Loader.exe

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 12 IoCs

Processes:

powershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exe

pid	Process
3980	powershell.exe
3980	powershell.exe
1796	powershell.exe
1796	powershell.exe
1040	powershell.exe
1040	powershell.exe
1128	powershell.exe
1128	powershell.exe
1548	powershell.exe
1548	powershell.exe
3200	powershell.exe
3200	powershell.exe

Suspicious use of AdjustPrivilegeToken 7 IoCs

Processes:

Loader.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exe

description	pid	Process
Token: SeDebugPrivilege	2176	Loader.exe
Token: SeDebugPrivilege	3980	powershell.exe
Token: SeDebugPrivilege	1796	powershell.exe
Token: SeDebugPrivilege	1040	powershell.exe
Token: SeDebugPrivilege	1128	powershell.exe
Token: SeDebugPrivilege	1548	powershell.exe
Token: SeDebugPrivilege	3200	powershell.exe

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

Loader.exe

description	pid	Process	procid_target
PID 2176 wrote to memory of 3980	2176	Loader.exe	98
PID 2176 wrote to memory of 3980	2176	Loader.exe	98
PID 2176 wrote to memory of 1796	2176	Loader.exe	100
PID 2176 wrote to memory of 1796	2176	Loader.exe	100
PID 2176 wrote to memory of 1040	2176	Loader.exe	104
PID 2176 wrote to memory of 1040	2176	Loader.exe	104
PID 2176 wrote to memory of 1128	2176	Loader.exe	106
PID 2176 wrote to memory of 1128	2176	Loader.exe	106
PID 2176 wrote to memory of 1548	2176	Loader.exe	109
PID 2176 wrote to memory of 1548	2176	Loader.exe	109
PID 2176 wrote to memory of 3200	2176	Loader.exe	111
PID 2176 wrote to memory of 3200	2176	Loader.exe	111

C:\Users\Admin\AppData\Local\Temp\Loader.exe
"C:\Users\Admin\AppData\Local\Temp\Loader.exe"
1⤵
- Modifies Windows Defender Real-time Protection settings
- Checks computer location settings
- Windows security modification
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2176
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "powershell" Get-MpPreference -verbose
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3980
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add - MpPreference - ExclusionExtension ".exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1796
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "powershell" Get-MpPreference -verbose
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1040
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add - MpPreference - ExclusionExtension ".exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1128
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "powershell" Get-MpPreference -verbose
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1548
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add - MpPreference - ExclusionExtension ".exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3200

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Create or Modify System Process

1

T1543

Windows Service

1

T1543.003

Privilege Escalation

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

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log

Filesize
2KB

MD5
0e3b2fb1305afa355fb0585c068cdbbd

SHA1
b4e9457bfdc38337f64e3b2606aa34861aa6b4ed

SHA256
43a303fed06d5928800280cb0bf716790d9f886c87f26faf9fbdfa59b55e9c0d

SHA512
6a754dbb33c549ace5f71e169511422284f688c9df1c1e5fac8a633feac24312ba39fa4c682bdc9fe1d1162e2a3bd6190013652e567909417579db4b8791554d

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
944B

MD5
42cc9ff3509672894beabcd392a00c43

SHA1
c12dc74a6c8a8e1f8f4033d31495ebb09d70e9ab

SHA256
352d90b619218e7bf297219c1468e9ea487c9002e28984ec70a963088dff3579

SHA512
c876de012d1b237463b2c2a4195e050c2ddbdf5725aa2553313525ecb6a4a3f0cda9a289f257b886395da6407b5173451e95df89665ae1c727c6be3753a89271

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
944B

MD5
92075279f2dbcaa5724ee5a47e49712f

SHA1
8dd3e2faa8432dde978946ebaf9054f7c6e0b2cb

SHA256
fd985ddd090621af25aa77aebff689c95ea7679ff0e81887124b2802ae3e9442

SHA512
744c62556233d9872f43ffb5a5a98aee20a44834436306f0a948c8c4072bdb46ef8044616593747edd645caaee60faf8b14fedb2d6df5f6019b5c73357d80d22

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
944B

MD5
ce1bcf918960a60f96aa47ba48f3f859

SHA1
19162756fbc393f9a0f8740ab628ca459f90f578

SHA256
770e134e98ec4a964e22e23bdfb6bfacd295382c5d45fc1b90d6ed9b34307ef5

SHA512
d37419f97ad15e303f6d92924b49766e6995579e6c06e650df4016a930bdff44ecafb440b1263d34ac5217239c49b1ebfd709080b690f9b52a7bb2d7fcd666c1

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
944B

MD5
15dde0683cd1ca19785d7262f554ba93

SHA1
d039c577e438546d10ac64837b05da480d06bf69

SHA256
d6fa39eab7ee36f44dc3f9f2839d098433db95c1eba924e4bcf4e5c0d268d961

SHA512
57c0e1b87bc1c136f0d39f3ce64bb8f8274a0491e4ca6e45e5c7f9070aa9d9370c6f590ce37cd600b252df2638d870205249a514c43245ca7ed49017024a4672

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
944B

MD5
cc19bcff372d20459d3651ba8aef50e7

SHA1
3c6f1d4cdd647864fb97a16b1aefba67fcee11f7

SHA256
366473e774d8976c7fd4dc582220666fb61a4feb3f7c95e69b2a68ad9e446ec9

SHA512
a0e360ca4b6e874fd44612bf4b17f3722c0619da4f6bade12a62efadae88c2d33460114eaafa2bc3fb1cef5bea07e745b8bee24f15d0cacaff5f4a521b225080

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_3n1jiooe.mtn.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/2176-40-0x000000001D0B0000-0x000000001D162000-memory.dmp

Filesize
712KB

Download
memory/2176-3-0x00007FFE6DBB0000-0x00007FFE6E671000-memory.dmp

Filesize
10.8MB

Download
memory/2176-11-0x000000001CEE0000-0x000000001CEFE000-memory.dmp

Filesize
120KB

Download
memory/2176-85-0x000000001D590000-0x000000001D5C2000-memory.dmp

Filesize
200KB

Download
memory/2176-9-0x000000001CF10000-0x000000001CF86000-memory.dmp

Filesize
472KB

Download
memory/2176-1-0x0000000000320000-0x0000000000336000-memory.dmp

Filesize
88KB

Download
memory/2176-2-0x00007FFE6DBB0000-0x00007FFE6E671000-memory.dmp

Filesize
10.8MB

Download
memory/2176-10-0x000000001CE90000-0x000000001CEC4000-memory.dmp

Filesize
208KB

Download
memory/2176-6-0x00007FFE6DBB3000-0x00007FFE6DBB5000-memory.dmp

Filesize
8KB

Download
memory/2176-8-0x00007FFE6DBB0000-0x00007FFE6E671000-memory.dmp

Filesize
10.8MB

Download
memory/2176-7-0x00007FFE6DBB0000-0x00007FFE6E671000-memory.dmp

Filesize
10.8MB

Download
memory/2176-0-0x00007FFE6DBB3000-0x00007FFE6DBB5000-memory.dmp

Filesize
8KB

Download
memory/3980-27-0x00007FFE6DBB0000-0x00007FFE6E671000-memory.dmp

Filesize
10.8MB

Download
memory/3980-24-0x00007FFE6DBB0000-0x00007FFE6E671000-memory.dmp

Filesize
10.8MB

Download
memory/3980-23-0x00007FFE6DBB0000-0x00007FFE6E671000-memory.dmp

Filesize
10.8MB

Download
memory/3980-22-0x00007FFE6DBB0000-0x00007FFE6E671000-memory.dmp

Filesize
10.8MB

Download
memory/3980-17-0x000001E28EC30000-0x000001E28EC52000-memory.dmp

Filesize
136KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads