asyncrat | ae29b2d44dc62facf4d13c62fc713ed8ed8e79cbcf8266d883df649a0d80d7ec

Analysis

max time kernel
150s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20240709-en
resource tags

arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
submitted
23-07-2024 14:38

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General

Target

AsyncClient.exe
Size

47KB
MD5

0574161d97acfad49ad2406b44f3a6f9
SHA1

72e6e7bc01eaa351a891841aafacafbe470cc8ba
SHA256

ae29b2d44dc62facf4d13c62fc713ed8ed8e79cbcf8266d883df649a0d80d7ec
SHA512

6f5290516237506e7fc3f6a3a2f6ef7014db66f84c5e9dc6de754f6141ec86b3f217dc43d0d2b268053a049443cd37af50e4d26549f66e9b20d8a88aae36dd1b
SSDEEP

768:cuTAlTP3IwK2WUwv2Mmo2qBcdycNMz0Un2GFPIuOT0b/p990dwfGn1UTrhHNEU21:cuTAlTPrg2v4ZCuOYbR99Ywen1AHSU21

Score

10^/10

asyncrat default discovery rat

Malware Config

Extracted

Family

asyncrat

Version

0.5.8

Botnet

Default

127.0.0.1:6606

127.0.0.1:7707

127.0.0.1:8808

Mutex

SmJ1L60772Vk

Attributes

delay
3
install
false
install_file
panel1.exe
install_folder
%AppData%

aes.plain

Signatures

AsyncRat
AsyncRAT is designed to remotely monitor and control other computers written in C#.
rat asyncrat
Browser Information Discovery 1 TTPs
Enumerate browser information.
discovery

Browser Information Discovery
T1217

System Location Discovery: System Language Discovery 1 TTPs 1 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	AsyncClient.exe

Enumerates system info in registry 2 TTPs 3 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS	chrome.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemProductName	chrome.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemManufacturer	chrome.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
908	chrome.exe
908	chrome.exe

Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 3 IoCs

pid	Process
908	chrome.exe
908	chrome.exe
908	chrome.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeShutdownPrivilege	908	chrome.exe
Token: SeCreatePagefilePrivilege	908	chrome.exe
Token: SeShutdownPrivilege	908	chrome.exe
Token: SeCreatePagefilePrivilege	908	chrome.exe

Suspicious use of FindShellTrayWindow 26 IoCs

pid	Process
908	chrome.exe
908	chrome.exe
908	chrome.exe
908	chrome.exe
908	chrome.exe
908	chrome.exe
908	chrome.exe
908	chrome.exe
908	chrome.exe
908	chrome.exe
908	chrome.exe
908	chrome.exe
908	chrome.exe
908	chrome.exe
908	chrome.exe
908	chrome.exe
908	chrome.exe
908	chrome.exe
908	chrome.exe
908	chrome.exe
908	chrome.exe
908	chrome.exe
908	chrome.exe
908	chrome.exe
908	chrome.exe
908	chrome.exe

Suspicious use of SendNotifyMessage 24 IoCs

pid	Process
908	chrome.exe
908	chrome.exe
908	chrome.exe
908	chrome.exe
908	chrome.exe
908	chrome.exe
908	chrome.exe
908	chrome.exe
908	chrome.exe
908	chrome.exe
908	chrome.exe
908	chrome.exe
908	chrome.exe
908	chrome.exe
908	chrome.exe
908	chrome.exe
908	chrome.exe
908	chrome.exe
908	chrome.exe
908	chrome.exe
908	chrome.exe
908	chrome.exe
908	chrome.exe
908	chrome.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 908 wrote to memory of 428	908	chrome.exe	117
PID 908 wrote to memory of 428	908	chrome.exe	117
PID 908 wrote to memory of 5104	908	chrome.exe	118
PID 908 wrote to memory of 5104	908	chrome.exe	118
PID 908 wrote to memory of 5104	908	chrome.exe	118
PID 908 wrote to memory of 5104	908	chrome.exe	118
PID 908 wrote to memory of 5104	908	chrome.exe	118
PID 908 wrote to memory of 5104	908	chrome.exe	118
PID 908 wrote to memory of 5104	908	chrome.exe	118
PID 908 wrote to memory of 5104	908	chrome.exe	118
PID 908 wrote to memory of 5104	908	chrome.exe	118
PID 908 wrote to memory of 5104	908	chrome.exe	118
PID 908 wrote to memory of 5104	908	chrome.exe	118
PID 908 wrote to memory of 5104	908	chrome.exe	118
PID 908 wrote to memory of 5104	908	chrome.exe	118
PID 908 wrote to memory of 5104	908	chrome.exe	118
PID 908 wrote to memory of 5104	908	chrome.exe	118
PID 908 wrote to memory of 5104	908	chrome.exe	118
PID 908 wrote to memory of 5104	908	chrome.exe	118
PID 908 wrote to memory of 5104	908	chrome.exe	118
PID 908 wrote to memory of 5104	908	chrome.exe	118
PID 908 wrote to memory of 5104	908	chrome.exe	118
PID 908 wrote to memory of 5104	908	chrome.exe	118
PID 908 wrote to memory of 5104	908	chrome.exe	118
PID 908 wrote to memory of 5104	908	chrome.exe	118
PID 908 wrote to memory of 5104	908	chrome.exe	118
PID 908 wrote to memory of 5104	908	chrome.exe	118
PID 908 wrote to memory of 5104	908	chrome.exe	118
PID 908 wrote to memory of 5104	908	chrome.exe	118
PID 908 wrote to memory of 5104	908	chrome.exe	118
PID 908 wrote to memory of 5104	908	chrome.exe	118
PID 908 wrote to memory of 5104	908	chrome.exe	118
PID 908 wrote to memory of 4072	908	chrome.exe	119
PID 908 wrote to memory of 4072	908	chrome.exe	119
PID 908 wrote to memory of 548	908	chrome.exe	120
PID 908 wrote to memory of 548	908	chrome.exe	120
PID 908 wrote to memory of 548	908	chrome.exe	120
PID 908 wrote to memory of 548	908	chrome.exe	120
PID 908 wrote to memory of 548	908	chrome.exe	120
PID 908 wrote to memory of 548	908	chrome.exe	120
PID 908 wrote to memory of 548	908	chrome.exe	120
PID 908 wrote to memory of 548	908	chrome.exe	120
PID 908 wrote to memory of 548	908	chrome.exe	120
PID 908 wrote to memory of 548	908	chrome.exe	120
PID 908 wrote to memory of 548	908	chrome.exe	120
PID 908 wrote to memory of 548	908	chrome.exe	120
PID 908 wrote to memory of 548	908	chrome.exe	120
PID 908 wrote to memory of 548	908	chrome.exe	120
PID 908 wrote to memory of 548	908	chrome.exe	120
PID 908 wrote to memory of 548	908	chrome.exe	120
PID 908 wrote to memory of 548	908	chrome.exe	120
PID 908 wrote to memory of 548	908	chrome.exe	120
PID 908 wrote to memory of 548	908	chrome.exe	120
PID 908 wrote to memory of 548	908	chrome.exe	120
PID 908 wrote to memory of 548	908	chrome.exe	120
PID 908 wrote to memory of 548	908	chrome.exe	120
PID 908 wrote to memory of 548	908	chrome.exe	120
PID 908 wrote to memory of 548	908	chrome.exe	120
PID 908 wrote to memory of 548	908	chrome.exe	120
PID 908 wrote to memory of 548	908	chrome.exe	120
PID 908 wrote to memory of 548	908	chrome.exe	120
PID 908 wrote to memory of 548	908	chrome.exe	120
PID 908 wrote to memory of 548	908	chrome.exe	120
PID 908 wrote to memory of 548	908	chrome.exe	120

C:\Users\Admin\AppData\Local\Temp\AsyncClient.exe
"C:\Users\Admin\AppData\Local\Temp\AsyncClient.exe"
1⤵
- System Location Discovery: System Language Discovery
PID:3476

C:\Windows\System32\rundll32.exe
C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
1⤵
PID:3356

C:\Program Files\Google\Chrome\Application\chrome.exe
"C:\Program Files\Google\Chrome\Application\chrome.exe"
1⤵
- Enumerates system info in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:908
- C:\Program Files\Google\Chrome\Application\chrome.exe
  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=crashpad-handler "--user-data-dir=C:\Users\Admin\AppData\Local\Google\Chrome\User Data" /prefetch:4 --monitor-self-annotation=ptype=crashpad-handler "--database=C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Crashpad" --url=https://clients2.google.com/cr/report --annotation=channel= --annotation=plat=Win64 --annotation=prod=Chrome --annotation=ver=123.0.6312.106 --initial-client-data=0x118,0x11c,0x120,0xf4,0x124,0x7ff90cf7cc40,0x7ff90cf7cc4c,0x7ff90cf7cc58
  2⤵
  PID:428
- C:\Program Files\Google\Chrome\Application\chrome.exe
  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=gpu-process --no-appcompat-clear --gpu-preferences=WAAAAAAAAADgAAAMAAAAAAAAAAAAAAAAAABgAAEAAAA4AAAAAAAAAAAAAAAEAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAGAAAAAAAAAAYAAAAAAAAAAgAAAAAAAAACAAAAAAAAAAIAAAAAAAAAA== --field-trial-handle=1824,i,2814686705032611678,9723945280870489700,262144 --variations-seed-version=20240708-180128.343000 --mojo-platform-channel-handle=1812 /prefetch:2
  2⤵
  PID:5104
- C:\Program Files\Google\Chrome\Application\chrome.exe
  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=network.mojom.NetworkService --lang=en-US --service-sandbox-type=none --no-appcompat-clear --field-trial-handle=1936,i,2814686705032611678,9723945280870489700,262144 --variations-seed-version=20240708-180128.343000 --mojo-platform-channel-handle=1952 /prefetch:3
  2⤵
  PID:4072
- C:\Program Files\Google\Chrome\Application\chrome.exe
  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=storage.mojom.StorageService --lang=en-US --service-sandbox-type=service --no-appcompat-clear --field-trial-handle=2228,i,2814686705032611678,9723945280870489700,262144 --variations-seed-version=20240708-180128.343000 --mojo-platform-channel-handle=2404 /prefetch:8
  2⤵
  PID:548
- C:\Program Files\Google\Chrome\Application\chrome.exe
  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --no-appcompat-clear --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=6 --field-trial-handle=3140,i,2814686705032611678,9723945280870489700,262144 --variations-seed-version=20240708-180128.343000 --mojo-platform-channel-handle=3160 /prefetch:1
  2⤵
  PID:3436
- C:\Program Files\Google\Chrome\Application\chrome.exe
  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --no-appcompat-clear --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=5 --field-trial-handle=3320,i,2814686705032611678,9723945280870489700,262144 --variations-seed-version=20240708-180128.343000 --mojo-platform-channel-handle=3304 /prefetch:1
  2⤵
  PID:972
- C:\Program Files\Google\Chrome\Application\chrome.exe
  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --no-appcompat-clear --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=7 --field-trial-handle=3700,i,2814686705032611678,9723945280870489700,262144 --variations-seed-version=20240708-180128.343000 --mojo-platform-channel-handle=4484 /prefetch:1
  2⤵
  PID:1360

C:\Program Files\Google\Chrome\Application\123.0.6312.106\elevation_service.exe
"C:\Program Files\Google\Chrome\Application\123.0.6312.106\elevation_service.exe"
1⤵
PID:2008

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Browser Information Discovery

T1217

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Network\SCT Auditing Pending Reports

Filesize
2B

MD5
d751713988987e9331980363e24189ce

SHA1
97d170e1550eee4afc0af065b78cda302a97674c

SHA256
4f53cda18c2baa0c0354bb5f9a3ecbe5ed12ab4d8e11ba873c2f11161202b945

SHA512
b25b294cb4deb69ea00a4c3cf3113904801b6015e5956bd019a8570b1fe1d6040e944ef3cdee16d0a46503ca6e659a25f21cf9ceddc13f352a3c98138c15d6af

Download Submit
memory/3476-0-0x0000000074D2E000-0x0000000074D2F000-memory.dmp

Filesize
4KB

Download
memory/3476-1-0x00000000005C0000-0x00000000005D2000-memory.dmp

Filesize
72KB

Download
memory/3476-2-0x0000000074D20000-0x00000000754D0000-memory.dmp

Filesize
7.7MB

Download
memory/3476-3-0x0000000074D2E000-0x0000000074D2F000-memory.dmp

Filesize
4KB

Download
memory/3476-4-0x0000000074D20000-0x00000000754D0000-memory.dmp

Filesize
7.7MB

Download