asyncrat | fdc933b64df0832a1f88f0e19a4cab67fb110d54c4913367a7215d7890f8a5b7

General

Target

fdc933b64df0832a1f88f0e19a4cab67fb110d54c4913367a7215d7890f8a5b7.exe
Size

405KB
MD5

c4e10100c5cf7bec2d9d0a1d7203ddb2
SHA1

24a6ecd52fb2165b8563a2853898316851638871
SHA256

fdc933b64df0832a1f88f0e19a4cab67fb110d54c4913367a7215d7890f8a5b7
SHA512

ff6bd9bdcb95641c5e19aeef99d9cdddb33b5b309ec358a1a50ba00d2cea9a3fa22a0239b4e09d4a8904d4b7f470bbc621d5e0d60331bc5800709d308faf3202
SSDEEP

6144:0NYzj2jBoO33tq6qbXaYBc1g5aN9KBBBBBBByygHG/bZbYdNpmIU:eYzAq81g5aN+BoKD

Score

10^/10

asyncrat execution persistence rat

Malware Config

Signatures

AsyncRat
AsyncRAT is designed to remotely monitor and control other computers written in C#.
rat asyncrat
Command and Scripting Interpreter: PowerShell 1 TTPs 4 IoCs
Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.
execution

PowerShell
T1059.001

Processes:

powershell.exepowershell.exepowershell.exepowershell.exe

pid process

4104 powershell.exe
2916 powershell.exe
632 powershell.exe
1168 powershell.exe

pid	process
4104	powershell.exe
2916	powershell.exe
632	powershell.exe
1168	powershell.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:

fdc933b64df0832a1f88f0e19a4cab67fb110d54c4913367a7215d7890f8a5b7.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1181767204-2009306918-3718769404-1000\Control Panel\International\Geo\Nation	fdc933b64df0832a1f88f0e19a4cab67fb110d54c4913367a7215d7890f8a5b7.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

fdc933b64df0832a1f88f0e19a4cab67fb110d54c4913367a7215d7890f8a5b7.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-1181767204-2009306918-3718769404-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\JkanJjJrabo = "C:\\Users\\Admin\\AppData\\Local\\Temp\\fdc933b64df0832a1f88f0e19a4cab67fb110d54c4913367a7215d7890f8a5b7.exe"	fdc933b64df0832a1f88f0e19a4cab67fb110d54c4913367a7215d7890f8a5b7.exe

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

System Information Discovery
T1082

Modifies registry class 9 IoCs

Processes:

fdc933b64df0832a1f88f0e19a4cab67fb110d54c4913367a7215d7890f8a5b7.exe

description	ioc	process
Key deleted	\REGISTRY\USER\S-1-5-21-1181767204-2009306918-3718769404-1000_Classes\ms-settings	fdc933b64df0832a1f88f0e19a4cab67fb110d54c4913367a7215d7890f8a5b7.exe
Key created	\REGISTRY\USER\S-1-5-21-1181767204-2009306918-3718769404-1000_Classes\ms-settings	fdc933b64df0832a1f88f0e19a4cab67fb110d54c4913367a7215d7890f8a5b7.exe
Key created	\REGISTRY\USER\S-1-5-21-1181767204-2009306918-3718769404-1000_Classes\ms-settings\shell	fdc933b64df0832a1f88f0e19a4cab67fb110d54c4913367a7215d7890f8a5b7.exe
Key deleted	\REGISTRY\USER\S-1-5-21-1181767204-2009306918-3718769404-1000_Classes\ms-settings\shell\open\command	fdc933b64df0832a1f88f0e19a4cab67fb110d54c4913367a7215d7890f8a5b7.exe
Key deleted	\REGISTRY\USER\S-1-5-21-1181767204-2009306918-3718769404-1000_Classes\ms-settings\shell\open	fdc933b64df0832a1f88f0e19a4cab67fb110d54c4913367a7215d7890f8a5b7.exe
Key deleted	\REGISTRY\USER\S-1-5-21-1181767204-2009306918-3718769404-1000_Classes\ms-settings\shell	fdc933b64df0832a1f88f0e19a4cab67fb110d54c4913367a7215d7890f8a5b7.exe
Key created	\REGISTRY\USER\S-1-5-21-1181767204-2009306918-3718769404-1000_Classes\ms-settings\shell\open\command	fdc933b64df0832a1f88f0e19a4cab67fb110d54c4913367a7215d7890f8a5b7.exe
Key created	\REGISTRY\USER\S-1-5-21-1181767204-2009306918-3718769404-1000_Classes\ms-settings\shell\open	fdc933b64df0832a1f88f0e19a4cab67fb110d54c4913367a7215d7890f8a5b7.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1181767204-2009306918-3718769404-1000_Classes\ms-settings\shell\open\command\	fdc933b64df0832a1f88f0e19a4cab67fb110d54c4913367a7215d7890f8a5b7.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

Processes:

fdc933b64df0832a1f88f0e19a4cab67fb110d54c4913367a7215d7890f8a5b7.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exe

pid	process
2248	fdc933b64df0832a1f88f0e19a4cab67fb110d54c4913367a7215d7890f8a5b7.exe
2248	fdc933b64df0832a1f88f0e19a4cab67fb110d54c4913367a7215d7890f8a5b7.exe
4104	powershell.exe
4104	powershell.exe
3860	powershell.exe
3860	powershell.exe
3748	powershell.exe
3748	powershell.exe
3748	powershell.exe
4104	powershell.exe
3860	powershell.exe
2916	powershell.exe
2916	powershell.exe
2916	powershell.exe
632	powershell.exe
632	powershell.exe
632	powershell.exe
1168	powershell.exe
1168	powershell.exe
1168	powershell.exe

Suspicious use of AdjustPrivilegeToken 7 IoCs

Processes:

fdc933b64df0832a1f88f0e19a4cab67fb110d54c4913367a7215d7890f8a5b7.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exepowershell.exe

description	pid	process
Token: SeDebugPrivilege	2248	fdc933b64df0832a1f88f0e19a4cab67fb110d54c4913367a7215d7890f8a5b7.exe
Token: SeDebugPrivilege	4104	powershell.exe
Token: SeDebugPrivilege	3860	powershell.exe
Token: SeDebugPrivilege	3748	powershell.exe
Token: SeDebugPrivilege	2916	powershell.exe
Token: SeDebugPrivilege	632	powershell.exe
Token: SeDebugPrivilege	1168	powershell.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

fdc933b64df0832a1f88f0e19a4cab67fb110d54c4913367a7215d7890f8a5b7.exe

pid process

2248 fdc933b64df0832a1f88f0e19a4cab67fb110d54c4913367a7215d7890f8a5b7.exe

Suspicious use of WriteProcessMemory 16 IoCs

Processes:

fdc933b64df0832a1f88f0e19a4cab67fb110d54c4913367a7215d7890f8a5b7.execmd.execmd.exe

description	pid	process	target process
PID 2248 wrote to memory of 4068	2248	fdc933b64df0832a1f88f0e19a4cab67fb110d54c4913367a7215d7890f8a5b7.exe	cmd.exe
PID 2248 wrote to memory of 4068	2248	fdc933b64df0832a1f88f0e19a4cab67fb110d54c4913367a7215d7890f8a5b7.exe	cmd.exe
PID 2248 wrote to memory of 4956	2248	fdc933b64df0832a1f88f0e19a4cab67fb110d54c4913367a7215d7890f8a5b7.exe	cmd.exe
PID 2248 wrote to memory of 4956	2248	fdc933b64df0832a1f88f0e19a4cab67fb110d54c4913367a7215d7890f8a5b7.exe	cmd.exe
PID 4068 wrote to memory of 4104	4068	cmd.exe	powershell.exe
PID 4068 wrote to memory of 4104	4068	cmd.exe	powershell.exe
PID 4956 wrote to memory of 3860	4956	cmd.exe	powershell.exe
PID 4956 wrote to memory of 3860	4956	cmd.exe	powershell.exe
PID 4956 wrote to memory of 3748	4956	cmd.exe	powershell.exe
PID 4956 wrote to memory of 3748	4956	cmd.exe	powershell.exe
PID 4956 wrote to memory of 2916	4956	cmd.exe	powershell.exe
PID 4956 wrote to memory of 2916	4956	cmd.exe	powershell.exe
PID 4956 wrote to memory of 632	4956	cmd.exe	powershell.exe
PID 4956 wrote to memory of 632	4956	cmd.exe	powershell.exe
PID 4956 wrote to memory of 1168	4956	cmd.exe	powershell.exe
PID 4956 wrote to memory of 1168	4956	cmd.exe	powershell.exe

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012

C:\Users\Admin\AppData\Local\Temp\fdc933b64df0832a1f88f0e19a4cab67fb110d54c4913367a7215d7890f8a5b7.exe
"C:\Users\Admin\AppData\Local\Temp\fdc933b64df0832a1f88f0e19a4cab67fb110d54c4913367a7215d7890f8a5b7.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2248

C:\Windows\System32\cmd.exe
"C:\Windows\System32\cmd.exe" /k start /b powershell -inputformat none -outputformat none -NonInteractive -Command Add-MpPreference -ExclusionPath C:\Users\Admin\AppData\Local\Temp\fdc933b64df0832a1f88f0e19a4cab67fb110d54c4913367a7215d7890f8a5b7.exe & exit
2⤵
- Suspicious use of WriteProcessMemory
PID:4068

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
powershell -inputformat none -outputformat none -NonInteractive -Command Add-MpPreference -ExclusionPath C:\Users\Admin\AppData\Local\Temp\fdc933b64df0832a1f88f0e19a4cab67fb110d54c4913367a7215d7890f8a5b7.exe
3⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4104

C:\Windows\System32\cmd.exe
"C:\Windows\System32\cmd.exe" /k start /b powershell.exe Set-MpPreference -DisableIntrusionPreventionSystem $true -DisableIOAVProtection $true -DisableRealtimeMonitoring $true -DisableScriptScanning $true -EnableControlledFolderAccess Disabled -EnableNetworkProtection AuditMode -Force -MAPSReporting Disabled -SubmitSamplesConsent NeverSend && powershell Set-MpPreference -SubmitSamplesConsent 2 & powershell.exe -inputformat none -outputformat none -NonInteractive -Command "Add-MpPreference -ExclusionPath %USERPROFILE%\AppData" & powershell.exe -inputformat none -outputformat none -NonInteractive -Command "Add-MpPreference -ExclusionPath %USERPROFILE%\Local" & powershell.exe -command "Set-MpPreference -ExclusionExtension '.exe'" & exit
2⤵
- Suspicious use of WriteProcessMemory
PID:4956

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
powershell.exe Set-MpPreference -DisableIntrusionPreventionSystem $true -DisableIOAVProtection $true -DisableRealtimeMonitoring $true -DisableScriptScanning $true -EnableControlledFolderAccess Disabled -EnableNetworkProtection AuditMode -Force -MAPSReporting Disabled -SubmitSamplesConsent NeverSend
3⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3860

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
powershell Set-MpPreference -SubmitSamplesConsent 2
3⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3748

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
powershell.exe -inputformat none -outputformat none -NonInteractive -Command "Add-MpPreference -ExclusionPath C:\Users\Admin\AppData"
3⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2916

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
powershell.exe -inputformat none -outputformat none -NonInteractive -Command "Add-MpPreference -ExclusionPath C:\Users\Admin\Local"
3⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:632

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
powershell.exe -command "Set-MpPreference -ExclusionExtension '.exe'"
3⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1168

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --field-trial-handle=4204,i,6166776566165096562,4582328833313060853,262144 --variations-seed-version --mojo-platform-channel-handle=3468 /prefetch:8
1⤵
PID:2376

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

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

Query Registry

2

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log
Filesize
2KB

MD5
d85ba6ff808d9e5444a4b369f5bc2730

SHA1
31aa9d96590fff6981b315e0b391b575e4c0804a

SHA256
84739c608a73509419748e4e20e6cc4e1846056c3fe1929a8300d5a1a488202f

SHA512
8c414eb55b45212af385accc16d9d562adba2123583ce70d22b91161fe878683845512a78f04dedd4ea98ed9b174dbfa98cf696370598ad8e6fbd1e714f1f249

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
Filesize
948B

MD5
c1a54dd5a1ab44cc4c4afd42f291c863

SHA1
b77043ab3582680fc96192e9d333a6be0ae0f69d

SHA256
c6dce870a896f3531ae7a10a0c2096d2eb7eb5989ae783aefea6150279502d75

SHA512
010f5093f58b0393d17c824a357513cf4f06239ccddd86c2e0581347ef3b8e7b93f869b0770bdaeb000e4fda7e14f49b9e45663a3839ab049446e9fe08ec535d

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
Filesize
944B

MD5
2e907f77659a6601fcc408274894da2e

SHA1
9f5b72abef1cd7145bf37547cdb1b9254b4efe9d

SHA256
385da35673330e21ac02545220552fe301fe54dedefbdafc097ac4342a295233

SHA512
34fa0fff24f6550f55f828541aaefe5d75c86f8f0842d54b50065e9746f9662bb7209c74c9a9571540b9855bb3851f01db613190024e89b198d485bb5dc07721

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
Filesize
64B

MD5
f58e3438f147fcc00edf8cd74308cc27

SHA1
f2eef0624e3a5da518538d7d7257a5c03b83654c

SHA256
379f00d1eba06d8462cd1b2e9abe340cd10921bdb5848988b60d545edc02df22

SHA512
4de19b0f3ab2a0809dcc9dc44e2543bc9c8f94af959975b20ddd593f7dbb4b5ac4aa46015e3b138cd2a4e6d1b97c999cbb1da0deae2dc47ca1ba482fdf0bf9d0

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
Filesize
64B

MD5
446dd1cf97eaba21cf14d03aebc79f27

SHA1
36e4cc7367e0c7b40f4a8ace272941ea46373799

SHA256
a7de5177c68a64bd48b36d49e2853799f4ebcfa8e4761f7cc472f333dc5f65cf

SHA512
a6d754709f30b122112ae30e5ab22486393c5021d33da4d1304c061863d2e1e79e8aeb029cae61261bb77d0e7becd53a7b0106d6ea4368b4c302464e3d941cf7

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_cvkckmi4.rkj.ps1
Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/2248-37-0x00007FFF91310000-0x00007FFF91DD1000-memory.dmp

Filesize
10.8MB

Download
memory/2248-2-0x00007FFF91310000-0x00007FFF91DD1000-memory.dmp

Filesize
10.8MB

Download
memory/2248-0-0x0000000000BD0000-0x0000000000C3C000-memory.dmp

Filesize
432KB

Download
memory/2248-1-0x00007FFF91313000-0x00007FFF91315000-memory.dmp

Filesize
8KB

Download
memory/2248-76-0x00007FFF91313000-0x00007FFF91315000-memory.dmp

Filesize
8KB

Download
memory/2248-77-0x00007FFF91310000-0x00007FFF91DD1000-memory.dmp

Filesize
10.8MB

Download
memory/2248-78-0x00007FFF91310000-0x00007FFF91DD1000-memory.dmp

Filesize
10.8MB

Download
memory/4104-4-0x0000022C405F0000-0x0000022C40612000-memory.dmp

Filesize
136KB

Download
memory/4104-34-0x00007FFF91310000-0x00007FFF91DD1000-memory.dmp

Filesize
10.8MB

Download
memory/4104-3-0x00007FFF91310000-0x00007FFF91DD1000-memory.dmp

Filesize
10.8MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads