asyncrat | 1c30611e8e3a99301ffe1102d4f70c44fd2d7593878dcdf4178002777fe6e920

Analysis

max time kernel
149s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
07-11-2024 22:38

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General

Target

GreenField.exe
Size

12KB
MD5

18208ba6920a74e8ca7bd244571ae383
SHA1

61797d94d14935a588a799e8dc943355eb6f4022
SHA256

1c30611e8e3a99301ffe1102d4f70c44fd2d7593878dcdf4178002777fe6e920
SHA512

87fdb3de8301e8f2dd7b8601ee468e64387ce72616af21153d129f236bf28a6dd81e1ba905cd534281bdc94aca1d85898ec6e64170cab2bb58d3c608002f64f3
SSDEEP

192:4Qt7If16ODCvuuYT6DI6kDmBwqVT9N62uEiGe5PF:A16O5CDIJDawqrklEiP5P

Score

10^/10

asyncrat default discovery execution persistence rat

Malware Config

Extracted

Family

asyncrat

Version

AWS | RxR

Botnet

Default

lastofdr51.mywire.org:6606

lastofdr51.mywire.org:7707

lastofdr51.mywire.org:8808

Nightmare15.strangled.net:6606

Nightmare15.strangled.net:7707

Nightmare15.strangled.net:8808

darkenssnight.ydns.eu:6606

darkenssnight.ydns.eu:7707

darkenssnight.ydns.eu:8808

Mutex

AsyncMutex_6SI8OkPnk

Attributes

delay
3
install
false
install_file
SystemUpdate.exe
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

Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

Processes:

powershell.exepowershell.exe

pid	Process
4304	powershell.exe
3872	powershell.exe

Checks computer location settings 2 TTPs 2 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

Processes:

GreenField.exePhotoBox.exe

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\Control Panel\International\Geo\Nation	GreenField.exe
Key value queried	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\Control Panel\International\Geo\Nation	PhotoBox.exe

Executes dropped EXE 1 IoCs

Processes:

PhotoBox.exe

pid	Process
2736	PhotoBox.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

GreenField.exe

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MyProgram = "C:\\Users\\Admin\\AppData\\Local\\Temp\\GreenField.exe"	GreenField.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs 4 IoCs

Web Service

T1102

Processes:

flow	ioc
10	raw.githubusercontent.com
6	raw.githubusercontent.com
7	raw.githubusercontent.com
8	raw.githubusercontent.com

Suspicious use of SetThreadContext 1 IoCs

Processes:

PhotoBox.exe

description	pid	Process	procid_target
PID 2736 set thread context of 4432	2736	PhotoBox.exe	108

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 6 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

Processes:

GreenField.exePhotoBox.exepowershell.exepowershell.exeschtasks.exeRegSvcs.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	GreenField.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	PhotoBox.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegSvcs.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

Processes:

schtasks.exe

pid	Process
1428	schtasks.exe

Suspicious behavior: EnumeratesProcesses 23 IoCs

Processes:

PhotoBox.exepowershell.exepowershell.exe

pid	Process
2736	PhotoBox.exe
2736	PhotoBox.exe
2736	PhotoBox.exe
2736	PhotoBox.exe
2736	PhotoBox.exe
2736	PhotoBox.exe
2736	PhotoBox.exe
2736	PhotoBox.exe
2736	PhotoBox.exe
2736	PhotoBox.exe
2736	PhotoBox.exe
2736	PhotoBox.exe
2736	PhotoBox.exe
2736	PhotoBox.exe
2736	PhotoBox.exe
2736	PhotoBox.exe
2736	PhotoBox.exe
2736	PhotoBox.exe
4304	powershell.exe
3872	powershell.exe
2736	PhotoBox.exe
4304	powershell.exe
3872	powershell.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

Processes:

GreenField.exePhotoBox.exepowershell.exepowershell.exeRegSvcs.exe

description	pid	Process
Token: SeDebugPrivilege	4928	GreenField.exe
Token: SeDebugPrivilege	2736	PhotoBox.exe
Token: SeDebugPrivilege	4304	powershell.exe
Token: SeDebugPrivilege	3872	powershell.exe
Token: SeDebugPrivilege	4432	RegSvcs.exe

Suspicious use of WriteProcessMemory 20 IoCs

Processes:

GreenField.exePhotoBox.exe

description	pid	Process	procid_target
PID 4928 wrote to memory of 2736	4928	GreenField.exe	86
PID 4928 wrote to memory of 2736	4928	GreenField.exe	86
PID 4928 wrote to memory of 2736	4928	GreenField.exe	86
PID 2736 wrote to memory of 4304	2736	PhotoBox.exe	102
PID 2736 wrote to memory of 4304	2736	PhotoBox.exe	102
PID 2736 wrote to memory of 4304	2736	PhotoBox.exe	102
PID 2736 wrote to memory of 3872	2736	PhotoBox.exe	104
PID 2736 wrote to memory of 3872	2736	PhotoBox.exe	104
PID 2736 wrote to memory of 3872	2736	PhotoBox.exe	104
PID 2736 wrote to memory of 1428	2736	PhotoBox.exe	106
PID 2736 wrote to memory of 1428	2736	PhotoBox.exe	106
PID 2736 wrote to memory of 1428	2736	PhotoBox.exe	106
PID 2736 wrote to memory of 4432	2736	PhotoBox.exe	108
PID 2736 wrote to memory of 4432	2736	PhotoBox.exe	108
PID 2736 wrote to memory of 4432	2736	PhotoBox.exe	108
PID 2736 wrote to memory of 4432	2736	PhotoBox.exe	108
PID 2736 wrote to memory of 4432	2736	PhotoBox.exe	108
PID 2736 wrote to memory of 4432	2736	PhotoBox.exe	108
PID 2736 wrote to memory of 4432	2736	PhotoBox.exe	108
PID 2736 wrote to memory of 4432	2736	PhotoBox.exe	108

C:\Users\Admin\AppData\Local\Temp\GreenField.exe
"C:\Users\Admin\AppData\Local\Temp\GreenField.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4928
- C:\Users\Admin\AppData\Local\PhotoBox.exe
  "C:\Users\Admin\AppData\Local\PhotoBox.exe"
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2736
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\PhotoBox.exe"
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:4304
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\YeANKIEIC.exe"
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:3872
- - C:\Windows\SysWOW64\schtasks.exe
    "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\YeANKIEIC" /XML "C:\Users\Admin\AppData\Local\Temp\tmpCE28.tmp"
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:1428
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of AdjustPrivilegeToken
    PID:4432

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Web Service

T1102

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log

Filesize
2KB

MD5
3d086a433708053f9bf9523e1d87a4e8

SHA1
b3ab5d4f282a4c8fe8c3005b8a557ed5a0e37f28

SHA256
6f8fd1b8d9788ad54eaeee329232187e24b7b43393a01aeba2d6e9675231fb69

SHA512
931ae42b4c68a4507ff2342332b08eb407050d47cf4176137ea022d0f6e513c689e998445a04c6d18d4877391705c586bfce0234632b898d41aaed0957996dfd

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

Filesize
18KB

MD5
4d74b206fa181752dad4ffb4db26076c

SHA1
3c263c5e7de1c29e079eecd9bf72652f2bc1565c

SHA256
ba77b0875465aa56eed758fb3a5a7ee6b0d3fa7ca34130cf1d3def7a1c1c1156

SHA512
c5326132c0f9a07e57d5113d4dce2facf2675ec148640e741505542da67d713fae4885315a4b919be54fac510ff3a106e3712b5ff3ec12517a6516620f0f9b4f

Download Submit
C:\Users\Admin\AppData\Local\PhotoBox.exe

Filesize
513KB

MD5
8d8718cc95ecf6af196cc0c0eaac9ae2

SHA1
0c822251da19e4f9f5a0b555d85fcf8813034b32

SHA256
89d813e660f2438c15b502fe9cba3a61dd069a4f4fafded91feac3039731bdb4

SHA512
98a74f1db9a7334f05327d871e7aa4e3b264d2cc36709df6e625edb79dde1e49a355b439fa7b72e6a5714a9c2e5b8807aa94aa137fee36c78388bbeeb9445114

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_tkdlcjvs.nvi.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpCE28.tmp

Filesize
1KB

MD5
aee3d98e03debec35fc772f0320bdc79

SHA1
997b693af803291c2fc8fc5a91a9b4e077bb9672

SHA256
8d0f3cf1e77dc6bdc7dd4391a2b5b52f051527d70ceed8c2c0e0dd9147914b6b

SHA512
b8b5988b385559384acbf8e7c4406ac5aa77bbdb39ed7562dc6cfd04022ab08ac77862b68ebe0c24619166cb5358cd78fdea52bfd55dddcffbec1eaef13adf60

Download Submit
memory/2736-22-0x0000000006A70000-0x0000000006DC4000-memory.dmp

Filesize
3.3MB

Download
memory/2736-16-0x0000000075060000-0x0000000075810000-memory.dmp

Filesize
7.7MB

Download
memory/2736-17-0x0000000005850000-0x0000000005DF4000-memory.dmp

Filesize
5.6MB

Download
memory/2736-19-0x0000000075060000-0x0000000075810000-memory.dmp

Filesize
7.7MB

Download
memory/2736-20-0x00000000052B0000-0x00000000052BA000-memory.dmp

Filesize
40KB

Download
memory/2736-21-0x00000000055C0000-0x00000000055D0000-memory.dmp

Filesize
64KB

Download
memory/2736-18-0x00000000051F0000-0x0000000005282000-memory.dmp

Filesize
584KB

Download
memory/2736-59-0x0000000075060000-0x0000000075810000-memory.dmp

Filesize
7.7MB

Download
memory/2736-15-0x00000000008D0000-0x0000000000956000-memory.dmp

Filesize
536KB

Download
memory/2736-25-0x0000000075060000-0x0000000075810000-memory.dmp

Filesize
7.7MB

Download
memory/2736-26-0x0000000006DD0000-0x0000000006E28000-memory.dmp

Filesize
352KB

Download
memory/2736-27-0x0000000009480000-0x000000000951C000-memory.dmp

Filesize
624KB

Download
memory/3872-85-0x00000000075D0000-0x0000000007C4A000-memory.dmp

Filesize
6.5MB

Download
memory/3872-88-0x0000000007210000-0x00000000072A6000-memory.dmp

Filesize
600KB

Download
memory/3872-93-0x00000000072B0000-0x00000000072B8000-memory.dmp

Filesize
32KB

Download
memory/3872-92-0x00000000072D0000-0x00000000072EA000-memory.dmp

Filesize
104KB

Download
memory/3872-91-0x00000000071D0000-0x00000000071E4000-memory.dmp

Filesize
80KB

Download
memory/3872-90-0x00000000071C0000-0x00000000071CE000-memory.dmp

Filesize
56KB

Download
memory/3872-87-0x0000000007000000-0x000000000700A000-memory.dmp

Filesize
40KB

Download
memory/3872-84-0x0000000006E60000-0x0000000006F03000-memory.dmp

Filesize
652KB

Download
memory/3872-82-0x0000000006E00000-0x0000000006E1E000-memory.dmp

Filesize
120KB

Download
memory/3872-60-0x0000000005C60000-0x0000000005C7E000-memory.dmp

Filesize
120KB

Download
memory/3872-61-0x0000000005CE0000-0x0000000005D2C000-memory.dmp

Filesize
304KB

Download
memory/3872-63-0x00000000706A0000-0x00000000706EC000-memory.dmp

Filesize
304KB

Download
memory/3872-62-0x0000000006E20000-0x0000000006E52000-memory.dmp

Filesize
200KB

Download
memory/4304-35-0x0000000005D40000-0x0000000005DA6000-memory.dmp

Filesize
408KB

Download
memory/4304-33-0x00000000054E0000-0x0000000005B08000-memory.dmp

Filesize
6.2MB

Download
memory/4304-34-0x0000000005460000-0x0000000005482000-memory.dmp

Filesize
136KB

Download
memory/4304-32-0x0000000004E70000-0x0000000004EA6000-memory.dmp

Filesize
216KB

Download
memory/4304-86-0x0000000007740000-0x000000000775A000-memory.dmp

Filesize
104KB

Download
memory/4304-36-0x0000000005DB0000-0x0000000005E16000-memory.dmp

Filesize
408KB

Download
memory/4304-73-0x00000000706A0000-0x00000000706EC000-memory.dmp

Filesize
304KB

Download
memory/4304-89-0x0000000007940000-0x0000000007951000-memory.dmp

Filesize
68KB

Download
memory/4432-57-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/4928-24-0x0000000075060000-0x0000000075810000-memory.dmp

Filesize
7.7MB

Download
memory/4928-23-0x000000007506E000-0x000000007506F000-memory.dmp

Filesize
4KB

Download
memory/4928-0-0x000000007506E000-0x000000007506F000-memory.dmp

Filesize
4KB

Download
memory/4928-2-0x0000000075060000-0x0000000075810000-memory.dmp

Filesize
7.7MB

Download
memory/4928-1-0x0000000000790000-0x000000000079A000-memory.dmp

Filesize
40KB

Download