asyncrat | 89d813e660f2438c15b502fe9cba3a61dd069a4f4fafded91feac3039731bdb4

Analysis

max time kernel
118s
max time network
144s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
07-11-2024 15:41

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General

Target

8d8718cc95ecf6af196cc0c0eaac9ae2.exe
Size

513KB
MD5

8d8718cc95ecf6af196cc0c0eaac9ae2
SHA1

0c822251da19e4f9f5a0b555d85fcf8813034b32
SHA256

89d813e660f2438c15b502fe9cba3a61dd069a4f4fafded91feac3039731bdb4
SHA512

98a74f1db9a7334f05327d871e7aa4e3b264d2cc36709df6e625edb79dde1e49a355b439fa7b72e6a5714a9c2e5b8807aa94aa137fee36c78388bbeeb9445114
SSDEEP

12288:iE/ShrODzyPjurrSN/nGtZr0IMr3xYokt9mROPBMzt:d/2PAShG30X3um3B

Score

10^/10

asyncrat default discovery execution 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
1804	powershell.exe
2892	powershell.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

8d8718cc95ecf6af196cc0c0eaac9ae2.exe

description	pid	Process	procid_target
PID 3008 set thread context of 636	3008	8d8718cc95ecf6af196cc0c0eaac9ae2.exe	38

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

Processes:

8d8718cc95ecf6af196cc0c0eaac9ae2.exepowershell.exeschtasks.exepowershell.exeRegSvcs.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	8d8718cc95ecf6af196cc0c0eaac9ae2.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	powershell.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
2816	schtasks.exe

Suspicious behavior: EnumeratesProcesses 23 IoCs

Processes:

8d8718cc95ecf6af196cc0c0eaac9ae2.exepowershell.exepowershell.exe

pid	Process
3008	8d8718cc95ecf6af196cc0c0eaac9ae2.exe
3008	8d8718cc95ecf6af196cc0c0eaac9ae2.exe
3008	8d8718cc95ecf6af196cc0c0eaac9ae2.exe
3008	8d8718cc95ecf6af196cc0c0eaac9ae2.exe
3008	8d8718cc95ecf6af196cc0c0eaac9ae2.exe
3008	8d8718cc95ecf6af196cc0c0eaac9ae2.exe
3008	8d8718cc95ecf6af196cc0c0eaac9ae2.exe
3008	8d8718cc95ecf6af196cc0c0eaac9ae2.exe
3008	8d8718cc95ecf6af196cc0c0eaac9ae2.exe
3008	8d8718cc95ecf6af196cc0c0eaac9ae2.exe
3008	8d8718cc95ecf6af196cc0c0eaac9ae2.exe
3008	8d8718cc95ecf6af196cc0c0eaac9ae2.exe
3008	8d8718cc95ecf6af196cc0c0eaac9ae2.exe
3008	8d8718cc95ecf6af196cc0c0eaac9ae2.exe
3008	8d8718cc95ecf6af196cc0c0eaac9ae2.exe
3008	8d8718cc95ecf6af196cc0c0eaac9ae2.exe
3008	8d8718cc95ecf6af196cc0c0eaac9ae2.exe
3008	8d8718cc95ecf6af196cc0c0eaac9ae2.exe
3008	8d8718cc95ecf6af196cc0c0eaac9ae2.exe
3008	8d8718cc95ecf6af196cc0c0eaac9ae2.exe
3008	8d8718cc95ecf6af196cc0c0eaac9ae2.exe
1804	powershell.exe
2892	powershell.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

Processes:

8d8718cc95ecf6af196cc0c0eaac9ae2.exepowershell.exepowershell.exeRegSvcs.exe

description	pid	Process
Token: SeDebugPrivilege	3008	8d8718cc95ecf6af196cc0c0eaac9ae2.exe
Token: SeDebugPrivilege	1804	powershell.exe
Token: SeDebugPrivilege	2892	powershell.exe
Token: SeDebugPrivilege	636	RegSvcs.exe

Suspicious use of WriteProcessMemory 31 IoCs

Processes:

8d8718cc95ecf6af196cc0c0eaac9ae2.exe

description	pid	Process	procid_target
PID 3008 wrote to memory of 2892	3008	8d8718cc95ecf6af196cc0c0eaac9ae2.exe	31
PID 3008 wrote to memory of 2892	3008	8d8718cc95ecf6af196cc0c0eaac9ae2.exe	31
PID 3008 wrote to memory of 2892	3008	8d8718cc95ecf6af196cc0c0eaac9ae2.exe	31
PID 3008 wrote to memory of 2892	3008	8d8718cc95ecf6af196cc0c0eaac9ae2.exe	31
PID 3008 wrote to memory of 1804	3008	8d8718cc95ecf6af196cc0c0eaac9ae2.exe	33
PID 3008 wrote to memory of 1804	3008	8d8718cc95ecf6af196cc0c0eaac9ae2.exe	33
PID 3008 wrote to memory of 1804	3008	8d8718cc95ecf6af196cc0c0eaac9ae2.exe	33
PID 3008 wrote to memory of 1804	3008	8d8718cc95ecf6af196cc0c0eaac9ae2.exe	33
PID 3008 wrote to memory of 2816	3008	8d8718cc95ecf6af196cc0c0eaac9ae2.exe	34
PID 3008 wrote to memory of 2816	3008	8d8718cc95ecf6af196cc0c0eaac9ae2.exe	34
PID 3008 wrote to memory of 2816	3008	8d8718cc95ecf6af196cc0c0eaac9ae2.exe	34
PID 3008 wrote to memory of 2816	3008	8d8718cc95ecf6af196cc0c0eaac9ae2.exe	34
PID 3008 wrote to memory of 1720	3008	8d8718cc95ecf6af196cc0c0eaac9ae2.exe	37
PID 3008 wrote to memory of 1720	3008	8d8718cc95ecf6af196cc0c0eaac9ae2.exe	37
PID 3008 wrote to memory of 1720	3008	8d8718cc95ecf6af196cc0c0eaac9ae2.exe	37
PID 3008 wrote to memory of 1720	3008	8d8718cc95ecf6af196cc0c0eaac9ae2.exe	37
PID 3008 wrote to memory of 1720	3008	8d8718cc95ecf6af196cc0c0eaac9ae2.exe	37
PID 3008 wrote to memory of 1720	3008	8d8718cc95ecf6af196cc0c0eaac9ae2.exe	37
PID 3008 wrote to memory of 1720	3008	8d8718cc95ecf6af196cc0c0eaac9ae2.exe	37
PID 3008 wrote to memory of 636	3008	8d8718cc95ecf6af196cc0c0eaac9ae2.exe	38
PID 3008 wrote to memory of 636	3008	8d8718cc95ecf6af196cc0c0eaac9ae2.exe	38
PID 3008 wrote to memory of 636	3008	8d8718cc95ecf6af196cc0c0eaac9ae2.exe	38
PID 3008 wrote to memory of 636	3008	8d8718cc95ecf6af196cc0c0eaac9ae2.exe	38
PID 3008 wrote to memory of 636	3008	8d8718cc95ecf6af196cc0c0eaac9ae2.exe	38
PID 3008 wrote to memory of 636	3008	8d8718cc95ecf6af196cc0c0eaac9ae2.exe	38
PID 3008 wrote to memory of 636	3008	8d8718cc95ecf6af196cc0c0eaac9ae2.exe	38
PID 3008 wrote to memory of 636	3008	8d8718cc95ecf6af196cc0c0eaac9ae2.exe	38
PID 3008 wrote to memory of 636	3008	8d8718cc95ecf6af196cc0c0eaac9ae2.exe	38
PID 3008 wrote to memory of 636	3008	8d8718cc95ecf6af196cc0c0eaac9ae2.exe	38
PID 3008 wrote to memory of 636	3008	8d8718cc95ecf6af196cc0c0eaac9ae2.exe	38
PID 3008 wrote to memory of 636	3008	8d8718cc95ecf6af196cc0c0eaac9ae2.exe	38

C:\Users\Admin\AppData\Local\Temp\8d8718cc95ecf6af196cc0c0eaac9ae2.exe
"C:\Users\Admin\AppData\Local\Temp\8d8718cc95ecf6af196cc0c0eaac9ae2.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3008
- 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\8d8718cc95ecf6af196cc0c0eaac9ae2.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2892
- 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"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1804
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\YeANKIEIC" /XML "C:\Users\Admin\AppData\Local\Temp\tmpCBB8.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2816
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
  2⤵
  PID:1720
- 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:636

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

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\Temp\CabED6D.tmp

Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpCBB8.tmp

Filesize
1KB

MD5
bbae1110b76e61914c292d097967d374

SHA1
232aa0afcd87889c28b58a60083bdef8da5979c3

SHA256
d1a25985375e698a60bbde9b205cc42c36e61c34e178840bd7aa3862b5405279

SHA512
0a4e6b0b0587ddf05a6aadc066e108bdd9740e827ef284587c5d394738cf185aa1511abfbc313efc080339d8c197d99746cdebed64fea0c6e083ebc2eb9ea27e

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\d93f411851d7c929.customDestinations-ms

Filesize
7KB

MD5
7a0aa20fc2e128e7f9ac1f310a69ea8c

SHA1
2c73a089d3fcc59a8de2ed3d231b857285a4e4b0

SHA256
7845f8c8e080ee1361590bb1c339dabcebf59cf76af7e4bb387bb83fced177d6

SHA512
bb9905845e4000d89cb1acb1b50cebbc658fcabcec90221d7d4927ef73ea1323a39da17a11b41b709d5c92daf4cc9b08b693d212f5145e32116f07f7f2c1b9d2

Download Submit
memory/636-29-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/636-28-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/636-23-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/636-25-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/636-27-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/636-21-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/636-19-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/636-30-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/3008-2-0x0000000074400000-0x0000000074AEE000-memory.dmp

Filesize
6.9MB

Download
memory/3008-0-0x000000007440E000-0x000000007440F000-memory.dmp

Filesize
4KB

Download
memory/3008-4-0x000000007440E000-0x000000007440F000-memory.dmp

Filesize
4KB

Download
memory/3008-3-0x0000000000340000-0x0000000000350000-memory.dmp

Filesize
64KB

Download
memory/3008-6-0x0000000004F40000-0x0000000004F98000-memory.dmp

Filesize
352KB

Download
memory/3008-5-0x0000000074400000-0x0000000074AEE000-memory.dmp

Filesize
6.9MB

Download
memory/3008-31-0x0000000074400000-0x0000000074AEE000-memory.dmp

Filesize
6.9MB

Download
memory/3008-1-0x0000000000DB0000-0x0000000000E36000-memory.dmp

Filesize
536KB

Download