asyncrat | 1c30611e8e3a99301ffe1102d4f70c44fd2d7593878dcdf4178002777fe6e920

Analysis

max time kernel
128s
max time network
147s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
10-11-2024 22:24

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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
2424	powershell.exe
4084	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-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation	GreenField.exe
Key value queried	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation	PhotoBox.exe

Executes dropped EXE 1 IoCs

Processes:

PhotoBox.exe

pid	Process
3332	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-1-5-21-493223053-2004649691-1575712786-1000\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
3	raw.githubusercontent.com
4	raw.githubusercontent.com
6	raw.githubusercontent.com
11	raw.githubusercontent.com

Suspicious use of SetThreadContext 1 IoCs

Processes:

PhotoBox.exe

description	pid	Process	procid_target
PID 3332 set thread context of 560	3332	PhotoBox.exe	109

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:

RegSvcs.exeGreenField.exePhotoBox.exepowershell.exepowershell.exeschtasks.exe

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

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
3728	schtasks.exe

Suspicious behavior: EnumeratesProcesses 23 IoCs

Processes:

PhotoBox.exepowershell.exepowershell.exe

pid	Process
3332	PhotoBox.exe
3332	PhotoBox.exe
3332	PhotoBox.exe
3332	PhotoBox.exe
3332	PhotoBox.exe
3332	PhotoBox.exe
3332	PhotoBox.exe
3332	PhotoBox.exe
3332	PhotoBox.exe
3332	PhotoBox.exe
3332	PhotoBox.exe
3332	PhotoBox.exe
3332	PhotoBox.exe
3332	PhotoBox.exe
3332	PhotoBox.exe
3332	PhotoBox.exe
3332	PhotoBox.exe
3332	PhotoBox.exe
4084	powershell.exe
2424	powershell.exe
3332	PhotoBox.exe
4084	powershell.exe
2424	powershell.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

Processes:

GreenField.exePhotoBox.exepowershell.exepowershell.exe

description	pid	Process
Token: SeDebugPrivilege	112	GreenField.exe
Token: SeDebugPrivilege	3332	PhotoBox.exe
Token: SeDebugPrivilege	2424	powershell.exe
Token: SeDebugPrivilege	4084	powershell.exe

Suspicious use of WriteProcessMemory 20 IoCs

Processes:

GreenField.exePhotoBox.exe

description	pid	Process	procid_target
PID 112 wrote to memory of 3332	112	GreenField.exe	87
PID 112 wrote to memory of 3332	112	GreenField.exe	87
PID 112 wrote to memory of 3332	112	GreenField.exe	87
PID 3332 wrote to memory of 2424	3332	PhotoBox.exe	103
PID 3332 wrote to memory of 2424	3332	PhotoBox.exe	103
PID 3332 wrote to memory of 2424	3332	PhotoBox.exe	103
PID 3332 wrote to memory of 4084	3332	PhotoBox.exe	105
PID 3332 wrote to memory of 4084	3332	PhotoBox.exe	105
PID 3332 wrote to memory of 4084	3332	PhotoBox.exe	105
PID 3332 wrote to memory of 3728	3332	PhotoBox.exe	107
PID 3332 wrote to memory of 3728	3332	PhotoBox.exe	107
PID 3332 wrote to memory of 3728	3332	PhotoBox.exe	107
PID 3332 wrote to memory of 560	3332	PhotoBox.exe	109
PID 3332 wrote to memory of 560	3332	PhotoBox.exe	109
PID 3332 wrote to memory of 560	3332	PhotoBox.exe	109
PID 3332 wrote to memory of 560	3332	PhotoBox.exe	109
PID 3332 wrote to memory of 560	3332	PhotoBox.exe	109
PID 3332 wrote to memory of 560	3332	PhotoBox.exe	109
PID 3332 wrote to memory of 560	3332	PhotoBox.exe	109
PID 3332 wrote to memory of 560	3332	PhotoBox.exe	109

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:112
- 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:3332
- - 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:2424
- - 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:4084
- - C:\Windows\SysWOW64\schtasks.exe
    "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\YeANKIEIC" /XML "C:\Users\Admin\AppData\Local\Temp\tmpAFE2.tmp"
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:3728
- - 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
    PID:560

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
968cb9309758126772781b83adb8a28f

SHA1
8da30e71accf186b2ba11da1797cf67f8f78b47c

SHA256
92099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a

SHA512
4bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3

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

Filesize
380B

MD5
936b0bfde8318c1d6f8fc559a286abb9

SHA1
952e135281f97f2bdf0964f84a2e5e260c5e93ff

SHA256
63c308c32f09cf4fcecfd89635b2ac1f4adc6c4274ec56a2a0bc1958f1b367e2

SHA512
a52baa6c4929b03e078f0c939df112715c6c24c75d9ade03a266d445ead4053a6954f782a53e37c1b7b213089e1474930dc683a78804315f6c2d9cec792cd755

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_mpj3mohu.5bz.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpAFE2.tmp

Filesize
1KB

MD5
087ea6cdd630b3d864e2a654296a4a28

SHA1
9863f406295f062e6cacfc832f2c42e173dcfe9a

SHA256
47e423679e15db19f10e554f576d5b29ce7523a747876556e2746eeb91e08138

SHA512
24a5f4d3d697b8b49424a773bf747a188adf0dc9c5920561724363c8452da6337d41a6aef12dfa20d4840938f363f0c47eb343f746164f0bd581b5b91de0f8c0

Download Submit
memory/112-23-0x00000000747EE000-0x00000000747EF000-memory.dmp

Filesize
4KB

Download
memory/112-1-0x0000000000320000-0x000000000032A000-memory.dmp

Filesize
40KB

Download
memory/112-2-0x00000000747E0000-0x0000000074F90000-memory.dmp

Filesize
7.7MB

Download
memory/112-0-0x00000000747EE000-0x00000000747EF000-memory.dmp

Filesize
4KB

Download
memory/112-24-0x00000000747E0000-0x0000000074F90000-memory.dmp

Filesize
7.7MB

Download
memory/560-57-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/2424-86-0x00000000071F0000-0x000000000720A000-memory.dmp

Filesize
104KB

Download
memory/2424-60-0x0000000005ED0000-0x0000000005EEE000-memory.dmp

Filesize
120KB

Download
memory/2424-90-0x0000000007420000-0x000000000742E000-memory.dmp

Filesize
56KB

Download
memory/2424-87-0x0000000007270000-0x000000000727A000-memory.dmp

Filesize
40KB

Download
memory/2424-85-0x0000000007840000-0x0000000007EBA000-memory.dmp

Filesize
6.5MB

Download
memory/2424-83-0x0000000007100000-0x00000000071A3000-memory.dmp

Filesize
652KB

Download
memory/2424-32-0x0000000002590000-0x00000000025C6000-memory.dmp

Filesize
216KB

Download
memory/2424-33-0x0000000005080000-0x00000000056A8000-memory.dmp

Filesize
6.2MB

Download
memory/2424-36-0x0000000005790000-0x00000000057F6000-memory.dmp

Filesize
408KB

Download
memory/2424-82-0x00000000064D0000-0x00000000064EE000-memory.dmp

Filesize
120KB

Download
memory/2424-35-0x0000000005720000-0x0000000005786000-memory.dmp

Filesize
408KB

Download
memory/2424-34-0x0000000004F10000-0x0000000004F32000-memory.dmp

Filesize
136KB

Download
memory/2424-63-0x000000006FE20000-0x000000006FE6C000-memory.dmp

Filesize
304KB

Download
memory/2424-62-0x0000000006490000-0x00000000064C2000-memory.dmp

Filesize
200KB

Download
memory/3332-20-0x0000000004CB0000-0x0000000004CBA000-memory.dmp

Filesize
40KB

Download
memory/3332-26-0x0000000006610000-0x0000000006668000-memory.dmp

Filesize
352KB

Download
memory/3332-16-0x00000000747E0000-0x0000000074F90000-memory.dmp

Filesize
7.7MB

Download
memory/3332-18-0x0000000004AE0000-0x0000000004B72000-memory.dmp

Filesize
584KB

Download
memory/3332-15-0x00000000001C0000-0x0000000000246000-memory.dmp

Filesize
536KB

Download
memory/3332-19-0x00000000747E0000-0x0000000074F90000-memory.dmp

Filesize
7.7MB

Download
memory/3332-22-0x0000000005FD0000-0x0000000006324000-memory.dmp

Filesize
3.3MB

Download
memory/3332-27-0x0000000008DA0000-0x0000000008E3C000-memory.dmp

Filesize
624KB

Download
memory/3332-17-0x0000000004F90000-0x0000000005534000-memory.dmp

Filesize
5.6MB

Download
memory/3332-59-0x00000000747E0000-0x0000000074F90000-memory.dmp

Filesize
7.7MB

Download
memory/3332-25-0x00000000747E0000-0x0000000074F90000-memory.dmp

Filesize
7.7MB

Download
memory/3332-21-0x0000000005FC0000-0x0000000005FD0000-memory.dmp

Filesize
64KB

Download
memory/4084-89-0x0000000007640000-0x0000000007651000-memory.dmp

Filesize
68KB

Download
memory/4084-88-0x00000000076C0000-0x0000000007756000-memory.dmp

Filesize
600KB

Download
memory/4084-91-0x0000000007680000-0x0000000007694000-memory.dmp

Filesize
80KB

Download
memory/4084-92-0x0000000007780000-0x000000000779A000-memory.dmp

Filesize
104KB

Download
memory/4084-93-0x0000000007760000-0x0000000007768000-memory.dmp

Filesize
32KB

Download
memory/4084-64-0x000000006FE20000-0x000000006FE6C000-memory.dmp

Filesize
304KB

Download
memory/4084-61-0x0000000006660000-0x00000000066AC000-memory.dmp

Filesize
304KB

Download