asyncrat | 419929cb29132d4442411144a0836daebe9eddcb9498c583197479a728aac18f

Analysis

max time kernel
98s
max time network
143s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
22-12-2024 21:50

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General

Target

419929cb29132d4442411144a0836daebe9eddcb9498c583197479a728aac18f.exe
Size

556KB
MD5

632fcbfdd3e602712905071c5a178e6d
SHA1

350fd5a29c11bf2244f94465ed2e82ce71a72ca4
SHA256

419929cb29132d4442411144a0836daebe9eddcb9498c583197479a728aac18f
SHA512

b0ea0cba1a9e6e5398e363d2558f0105288b48af2fa40678ce416bd07b2a021427c85af487734288f9e5a9185a1faeb3f2e67ae1a199e9686069333a07458ab4
SSDEEP

12288:ndBhrOiY7fNzGxb2w0T1Qhg8HM+M71ao7DVxZNywjzS:ndulzGow0ihhM71aYj3TS

Score

10^/10

asyncrat default discovery execution rat

Malware Config

Extracted

Family

asyncrat

Version

0.5.6D

Botnet

Default

ronymahmoud.casacam.net:6606

ronymahmoud.casacam.net:7707

ronymahmoud.casacam.net:8808

sk.servemp3.com:6606

sk.servemp3.com:7707

sk.servemp3.com:8808

Mutex

fpfvkdzpfziibqk

Attributes

delay
1
install
false
install_file
miccrosofte.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

pid	Process
5036	powershell.exe
1944	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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\Control Panel\International\Geo\Nation	419929cb29132d4442411144a0836daebe9eddcb9498c583197479a728aac18f.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4452 set thread context of 4340	4452	419929cb29132d4442411144a0836daebe9eddcb9498c583197479a728aac18f.exe	105

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 5 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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegSvcs.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	419929cb29132d4442411144a0836daebe9eddcb9498c583197479a728aac18f.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

pid	Process
3404	schtasks.exe

Suspicious behavior: EnumeratesProcesses 23 IoCs

pid	Process
4452	419929cb29132d4442411144a0836daebe9eddcb9498c583197479a728aac18f.exe
4452	419929cb29132d4442411144a0836daebe9eddcb9498c583197479a728aac18f.exe
4452	419929cb29132d4442411144a0836daebe9eddcb9498c583197479a728aac18f.exe
4452	419929cb29132d4442411144a0836daebe9eddcb9498c583197479a728aac18f.exe
4452	419929cb29132d4442411144a0836daebe9eddcb9498c583197479a728aac18f.exe
4452	419929cb29132d4442411144a0836daebe9eddcb9498c583197479a728aac18f.exe
4452	419929cb29132d4442411144a0836daebe9eddcb9498c583197479a728aac18f.exe
4452	419929cb29132d4442411144a0836daebe9eddcb9498c583197479a728aac18f.exe
4452	419929cb29132d4442411144a0836daebe9eddcb9498c583197479a728aac18f.exe
4452	419929cb29132d4442411144a0836daebe9eddcb9498c583197479a728aac18f.exe
4452	419929cb29132d4442411144a0836daebe9eddcb9498c583197479a728aac18f.exe
4452	419929cb29132d4442411144a0836daebe9eddcb9498c583197479a728aac18f.exe
4452	419929cb29132d4442411144a0836daebe9eddcb9498c583197479a728aac18f.exe
4452	419929cb29132d4442411144a0836daebe9eddcb9498c583197479a728aac18f.exe
4452	419929cb29132d4442411144a0836daebe9eddcb9498c583197479a728aac18f.exe
4452	419929cb29132d4442411144a0836daebe9eddcb9498c583197479a728aac18f.exe
4452	419929cb29132d4442411144a0836daebe9eddcb9498c583197479a728aac18f.exe
4452	419929cb29132d4442411144a0836daebe9eddcb9498c583197479a728aac18f.exe
5036	powershell.exe
1944	powershell.exe
4452	419929cb29132d4442411144a0836daebe9eddcb9498c583197479a728aac18f.exe
5036	powershell.exe
1944	powershell.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	4452	419929cb29132d4442411144a0836daebe9eddcb9498c583197479a728aac18f.exe
Token: SeDebugPrivilege	5036	powershell.exe
Token: SeDebugPrivilege	1944	powershell.exe
Token: SeDebugPrivilege	4340	RegSvcs.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 4452 wrote to memory of 5036	4452	419929cb29132d4442411144a0836daebe9eddcb9498c583197479a728aac18f.exe	99
PID 4452 wrote to memory of 5036	4452	419929cb29132d4442411144a0836daebe9eddcb9498c583197479a728aac18f.exe	99
PID 4452 wrote to memory of 5036	4452	419929cb29132d4442411144a0836daebe9eddcb9498c583197479a728aac18f.exe	99
PID 4452 wrote to memory of 1944	4452	419929cb29132d4442411144a0836daebe9eddcb9498c583197479a728aac18f.exe	101
PID 4452 wrote to memory of 1944	4452	419929cb29132d4442411144a0836daebe9eddcb9498c583197479a728aac18f.exe	101
PID 4452 wrote to memory of 1944	4452	419929cb29132d4442411144a0836daebe9eddcb9498c583197479a728aac18f.exe	101
PID 4452 wrote to memory of 3404	4452	419929cb29132d4442411144a0836daebe9eddcb9498c583197479a728aac18f.exe	103
PID 4452 wrote to memory of 3404	4452	419929cb29132d4442411144a0836daebe9eddcb9498c583197479a728aac18f.exe	103
PID 4452 wrote to memory of 3404	4452	419929cb29132d4442411144a0836daebe9eddcb9498c583197479a728aac18f.exe	103
PID 4452 wrote to memory of 4340	4452	419929cb29132d4442411144a0836daebe9eddcb9498c583197479a728aac18f.exe	105
PID 4452 wrote to memory of 4340	4452	419929cb29132d4442411144a0836daebe9eddcb9498c583197479a728aac18f.exe	105
PID 4452 wrote to memory of 4340	4452	419929cb29132d4442411144a0836daebe9eddcb9498c583197479a728aac18f.exe	105
PID 4452 wrote to memory of 4340	4452	419929cb29132d4442411144a0836daebe9eddcb9498c583197479a728aac18f.exe	105
PID 4452 wrote to memory of 4340	4452	419929cb29132d4442411144a0836daebe9eddcb9498c583197479a728aac18f.exe	105
PID 4452 wrote to memory of 4340	4452	419929cb29132d4442411144a0836daebe9eddcb9498c583197479a728aac18f.exe	105
PID 4452 wrote to memory of 4340	4452	419929cb29132d4442411144a0836daebe9eddcb9498c583197479a728aac18f.exe	105
PID 4452 wrote to memory of 4340	4452	419929cb29132d4442411144a0836daebe9eddcb9498c583197479a728aac18f.exe	105

C:\Users\Admin\AppData\Local\Temp\419929cb29132d4442411144a0836daebe9eddcb9498c583197479a728aac18f.exe
"C:\Users\Admin\AppData\Local\Temp\419929cb29132d4442411144a0836daebe9eddcb9498c583197479a728aac18f.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4452
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\419929cb29132d4442411144a0836daebe9eddcb9498c583197479a728aac18f.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:5036
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\KkjEJBLkYcb.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1944
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\KkjEJBLkYcb" /XML "C:\Users\Admin\AppData\Local\Temp\tmp7DD6.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:3404
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:4340

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

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

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

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
18KB

MD5
f86a051c54d53e6d9786dd3cc36c823b

SHA1
50392b22f979a2c6b4469318dfa922cda4aa90ca

SHA256
3d5fd04111845e1f48948ee62df47037017b6e2f036f1eb00d9c17a9768d683a

SHA512
3eaab7e312250f00aeabf1737affe93b72773a37a122cb2614c030a431fc7ae3e0609a6750c631167c02c52936c0e37ee843bd01f123ce009c10d71de13ff0c8

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_atzjtktx.lt0.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp7DD6.tmp

Filesize
1KB

MD5
22f40d720723e0f901afa09ac1448052

SHA1
5ed9a9fe7a0655b42c6b5f4d6b25de60e94e26bf

SHA256
8e6455e6dfb4be6a91d4309f573b0e2ddd2c0419c5590e3b72a49915e10f146b

SHA512
34030487fbcabf96c20eb24770ad1aadcb7f74744b0f826c371803dd0f81e87241ff0142ef30753504c57752f8172fd4dc9265211812c487e658a042fb652191

Download Submit
memory/1944-78-0x0000000007F00000-0x0000000007F96000-memory.dmp

Filesize
600KB

Download
memory/1944-81-0x0000000007EC0000-0x0000000007ED4000-memory.dmp

Filesize
80KB

Download
memory/1944-82-0x0000000007FC0000-0x0000000007FDA000-memory.dmp

Filesize
104KB

Download
memory/1944-64-0x0000000075730000-0x000000007577C000-memory.dmp

Filesize
304KB

Download
memory/1944-89-0x0000000074EA0000-0x0000000075650000-memory.dmp

Filesize
7.7MB

Download
memory/1944-48-0x0000000074EA0000-0x0000000075650000-memory.dmp

Filesize
7.7MB

Download
memory/1944-31-0x0000000074EA0000-0x0000000075650000-memory.dmp

Filesize
7.7MB

Download
memory/1944-25-0x0000000074EA0000-0x0000000075650000-memory.dmp

Filesize
7.7MB

Download
memory/4340-33-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/4452-11-0x0000000006E60000-0x0000000006EFC000-memory.dmp

Filesize
624KB

Download
memory/4452-7-0x0000000006A50000-0x0000000006DA4000-memory.dmp

Filesize
3.3MB

Download
memory/4452-1-0x00000000007F0000-0x0000000000880000-memory.dmp

Filesize
576KB

Download
memory/4452-2-0x00000000057A0000-0x0000000005D44000-memory.dmp

Filesize
5.6MB

Download
memory/4452-3-0x0000000005290000-0x0000000005322000-memory.dmp

Filesize
584KB

Download
memory/4452-4-0x0000000005270000-0x000000000527A000-memory.dmp

Filesize
40KB

Download
memory/4452-5-0x0000000074EA0000-0x0000000075650000-memory.dmp

Filesize
7.7MB

Download
memory/4452-6-0x00000000064C0000-0x00000000064D0000-memory.dmp

Filesize
64KB

Download
memory/4452-0-0x0000000074EAE000-0x0000000074EAF000-memory.dmp

Filesize
4KB

Download
memory/4452-10-0x0000000006F70000-0x0000000006FC4000-memory.dmp

Filesize
336KB

Download
memory/4452-9-0x0000000074EA0000-0x0000000075650000-memory.dmp

Filesize
7.7MB

Download
memory/4452-8-0x0000000074EAE000-0x0000000074EAF000-memory.dmp

Filesize
4KB

Download
memory/4452-49-0x0000000074EA0000-0x0000000075650000-memory.dmp

Filesize
7.7MB

Download
memory/5036-52-0x0000000006EE0000-0x0000000006F12000-memory.dmp

Filesize
200KB

Download
memory/5036-23-0x0000000005620000-0x0000000005686000-memory.dmp

Filesize
408KB

Download
memory/5036-50-0x0000000005D50000-0x0000000005D6E000-memory.dmp

Filesize
120KB

Download
memory/5036-53-0x0000000075730000-0x000000007577C000-memory.dmp

Filesize
304KB

Download
memory/5036-18-0x0000000004F80000-0x00000000055A8000-memory.dmp

Filesize
6.2MB

Download
memory/5036-22-0x0000000004E80000-0x0000000004EA2000-memory.dmp

Filesize
136KB

Download
memory/5036-63-0x0000000006300000-0x000000000631E000-memory.dmp

Filesize
120KB

Download
memory/5036-65-0x0000000006F20000-0x0000000006FC3000-memory.dmp

Filesize
652KB

Download
memory/5036-75-0x0000000007710000-0x0000000007D8A000-memory.dmp

Filesize
6.5MB

Download
memory/5036-76-0x0000000007060000-0x000000000707A000-memory.dmp

Filesize
104KB

Download
memory/5036-77-0x00000000070E0000-0x00000000070EA000-memory.dmp

Filesize
40KB

Download
memory/5036-51-0x0000000005DE0000-0x0000000005E2C000-memory.dmp

Filesize
304KB

Download
memory/5036-79-0x0000000007270000-0x0000000007281000-memory.dmp

Filesize
68KB

Download
memory/5036-80-0x00000000072A0000-0x00000000072AE000-memory.dmp

Filesize
56KB

Download
memory/5036-16-0x0000000004790000-0x00000000047C6000-memory.dmp

Filesize
216KB

Download
memory/5036-24-0x0000000005700000-0x0000000005766000-memory.dmp

Filesize
408KB

Download
memory/5036-83-0x0000000007390000-0x0000000007398000-memory.dmp

Filesize
32KB

Download
memory/5036-17-0x0000000074EA0000-0x0000000075650000-memory.dmp

Filesize
7.7MB

Download
memory/5036-20-0x0000000074EA0000-0x0000000075650000-memory.dmp

Filesize
7.7MB

Download
memory/5036-19-0x0000000074EA0000-0x0000000075650000-memory.dmp

Filesize
7.7MB

Download
memory/5036-90-0x0000000074EA0000-0x0000000075650000-memory.dmp

Filesize
7.7MB

Download