asyncrat | b314d188f9ae23f363c1d1297cd9f9bb67ecf933522a9f488e67a6cb7c202a18

Analysis

max time kernel
148s
max time network
149s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260709-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
10/07/2026, 11:55

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General

Target
b314d188f9ae23f363c1d1297cd9f9bb67ecf933522a9f488e67a6cb7c202a18.exe
Size 45KB
Sample260710-n3f57ab141
SHA256 b314d188f9ae23f363c1d1297cd9f9bb67ecf933522a9f488e67a6cb7c202a18
MD5 e9e90981a62122484b1b2952152bd3f9
SHA1 76b4c50ee4798661dad4ba3f74e8e50e41a82ac8
SHA512 b2d5cc9c0d69636993c723fdf3c23ec3a569f2ab4e8f7fa2b7b972286a5f100aac9ec4f423a089775e79d797a4dde3f412f7a5789a2f971142b46852248caf15
SSDEEP 768:RuxkJTVmU5EkWUGMKSmo2q1umaPcl83APITpzjbvgX3igV2yM6MYeyTBDZcx:RuxkJTgip2PfcS3lTp3bYXSgYyM6BVde
TLSH
T14F233B0037E8813BF2BE4F7899F22145467AF2637603D6591CC452DB4A23FC69A426FD
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

default defense_evasion discovery execution asyncrat persistence rat

Malware Config

Extracted

Family

asyncrat

Version

0.5.8

Botnet

Default

phimsexvn.work:80
phimsexvn.work:22
phimsexvn.work:8080
phimsexvn.work:8880
phimsexvn.work:2052
phimsexvn.work:2082
phimsexvn.work:2086
phimsexvn.work:2095
phimsexvn.work:443
phimsexvn.work:2053
phimsexvn.work:2083
phimsexvn.work:2087
phimsexvn.work:2096
phimsexvn.work:8443
www.phimsexvn.work:80
www.phimsexvn.work:22
www.phimsexvn.work:8080
www.phimsexvn.work:8880
www.phimsexvn.work:2052
www.phimsexvn.work:2082
www.phimsexvn.work:2086
www.phimsexvn.work:2095
www.phimsexvn.work:443
www.phimsexvn.work:2053
www.phimsexvn.work:2083
www.phimsexvn.work:2087
www.phimsexvn.work:2096
www.phimsexvn.work:8443
qbot.phimsexvn.work:80
qbot.phimsexvn.work:22
qbot.phimsexvn.work:8080
qbot.phimsexvn.work:8880
qbot.phimsexvn.work:2052
qbot.phimsexvn.work:2082
qbot.phimsexvn.work:2086
qbot.phimsexvn.work:2095
qbot.phimsexvn.work:443
qbot.phimsexvn.work:2053
qbot.phimsexvn.work:2083
qbot.phimsexvn.work:2087
qbot.phimsexvn.work:2096
qbot.phimsexvn.work:8443
ryuk.phimsexvn.work:80
ryuk.phimsexvn.work:22
ryuk.phimsexvn.work:8080
ryuk.phimsexvn.work:8880
ryuk.phimsexvn.work:2052
ryuk.phimsexvn.work:2082
ryuk.phimsexvn.work:2086
ryuk.phimsexvn.work:2095
ryuk.phimsexvn.work:443
ryuk.phimsexvn.work:2053
ryuk.phimsexvn.work:2083
ryuk.phimsexvn.work:2087
ryuk.phimsexvn.work:2096
ryuk.phimsexvn.work:8443

Mutex

AECoqLqSfnOF

Attributes

delay
0
install
true
install_file
21qvjaau.exe
install_folder
%AppData%

aes.plain

Signatures

Family: AsyncRat
AsyncRAT is designed to remotely monitor and control other computers written in C#.
rat asyncrat

Async RAT payload 1 IoCs

rat

resource	yara_rule
behavioral2/files/0x000c00000001c637-10.dat	family_asyncrat

Executes dropped EXE 2 IoCs

pid	Process
2700	21qvjaau.exe
7164	21qvjaau.exe

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 7 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	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	timeout.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	21qvjaau.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	21qvjaau.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	b314d188f9ae23f363c1d1297cd9f9bb67ecf933522a9f488e67a6cb7c202a18.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Delays execution with timeout.exe 1 IoCs

defense_evasion

pid	Process
4776	timeout.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
6592	schtasks.exe

Suspicious behavior: EnumeratesProcesses 29 IoCs

pid	Process
3100	b314d188f9ae23f363c1d1297cd9f9bb67ecf933522a9f488e67a6cb7c202a18.exe
3100	b314d188f9ae23f363c1d1297cd9f9bb67ecf933522a9f488e67a6cb7c202a18.exe
3100	b314d188f9ae23f363c1d1297cd9f9bb67ecf933522a9f488e67a6cb7c202a18.exe
3100	b314d188f9ae23f363c1d1297cd9f9bb67ecf933522a9f488e67a6cb7c202a18.exe
3100	b314d188f9ae23f363c1d1297cd9f9bb67ecf933522a9f488e67a6cb7c202a18.exe
3100	b314d188f9ae23f363c1d1297cd9f9bb67ecf933522a9f488e67a6cb7c202a18.exe
3100	b314d188f9ae23f363c1d1297cd9f9bb67ecf933522a9f488e67a6cb7c202a18.exe
3100	b314d188f9ae23f363c1d1297cd9f9bb67ecf933522a9f488e67a6cb7c202a18.exe
3100	b314d188f9ae23f363c1d1297cd9f9bb67ecf933522a9f488e67a6cb7c202a18.exe
3100	b314d188f9ae23f363c1d1297cd9f9bb67ecf933522a9f488e67a6cb7c202a18.exe
3100	b314d188f9ae23f363c1d1297cd9f9bb67ecf933522a9f488e67a6cb7c202a18.exe
3100	b314d188f9ae23f363c1d1297cd9f9bb67ecf933522a9f488e67a6cb7c202a18.exe
3100	b314d188f9ae23f363c1d1297cd9f9bb67ecf933522a9f488e67a6cb7c202a18.exe
3100	b314d188f9ae23f363c1d1297cd9f9bb67ecf933522a9f488e67a6cb7c202a18.exe
3100	b314d188f9ae23f363c1d1297cd9f9bb67ecf933522a9f488e67a6cb7c202a18.exe
3100	b314d188f9ae23f363c1d1297cd9f9bb67ecf933522a9f488e67a6cb7c202a18.exe
3100	b314d188f9ae23f363c1d1297cd9f9bb67ecf933522a9f488e67a6cb7c202a18.exe
3100	b314d188f9ae23f363c1d1297cd9f9bb67ecf933522a9f488e67a6cb7c202a18.exe
3100	b314d188f9ae23f363c1d1297cd9f9bb67ecf933522a9f488e67a6cb7c202a18.exe
3100	b314d188f9ae23f363c1d1297cd9f9bb67ecf933522a9f488e67a6cb7c202a18.exe
3100	b314d188f9ae23f363c1d1297cd9f9bb67ecf933522a9f488e67a6cb7c202a18.exe
3100	b314d188f9ae23f363c1d1297cd9f9bb67ecf933522a9f488e67a6cb7c202a18.exe
3100	b314d188f9ae23f363c1d1297cd9f9bb67ecf933522a9f488e67a6cb7c202a18.exe
3100	b314d188f9ae23f363c1d1297cd9f9bb67ecf933522a9f488e67a6cb7c202a18.exe
3100	b314d188f9ae23f363c1d1297cd9f9bb67ecf933522a9f488e67a6cb7c202a18.exe
3100	b314d188f9ae23f363c1d1297cd9f9bb67ecf933522a9f488e67a6cb7c202a18.exe
3100	b314d188f9ae23f363c1d1297cd9f9bb67ecf933522a9f488e67a6cb7c202a18.exe
3100	b314d188f9ae23f363c1d1297cd9f9bb67ecf933522a9f488e67a6cb7c202a18.exe
3100	b314d188f9ae23f363c1d1297cd9f9bb67ecf933522a9f488e67a6cb7c202a18.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3100	b314d188f9ae23f363c1d1297cd9f9bb67ecf933522a9f488e67a6cb7c202a18.exe
Token: SeDebugPrivilege	2700	21qvjaau.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 3100 wrote to memory of 2876	3100	b314d188f9ae23f363c1d1297cd9f9bb67ecf933522a9f488e67a6cb7c202a18.exe	87
PID 3100 wrote to memory of 4468	3100	b314d188f9ae23f363c1d1297cd9f9bb67ecf933522a9f488e67a6cb7c202a18.exe	89
PID 2876 wrote to memory of 6592	2876	cmd.exe	91
PID 4468 wrote to memory of 4776	4468	cmd.exe	92
PID 4468 wrote to memory of 7164	4468	cmd.exe	95

C:\Users\Admin\AppData\Local\Temp\b314d188f9ae23f363c1d1297cd9f9bb67ecf933522a9f488e67a6cb7c202a18.exe
"C:\Users\Admin\AppData\Local\Temp\b314d188f9ae23f363c1d1297cd9f9bb67ecf933522a9f488e67a6cb7c202a18.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3100
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "21qvjaau" /tr '"C:\Users\Admin\AppData\Roaming\21qvjaau.exe"' & exit
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2876
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "21qvjaau" /tr '"C:\Users\Admin\AppData\Roaming\21qvjaau.exe"'
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:6592
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmpB54C.tmp.bat""
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4468
- - C:\Windows\SysWOW64\timeout.exe
    timeout 3
    3⤵
    - System Location Discovery: System Language Discovery
    - Delays execution with timeout.exe
    PID:4776
- - C:\Users\Admin\AppData\Roaming\21qvjaau.exe
    "C:\Users\Admin\AppData\Roaming\21qvjaau.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:7164

C:\Users\Admin\AppData\Roaming\21qvjaau.exe
"C:\Users\Admin\AppData\Roaming\21qvjaau.exe"
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:2700

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

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

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Downloads

tmpB54C.tmp.bat

Path C:\Users\Admin\AppData\Local\Temp\tmpB54C.tmp.bat
Size 152B
SHA256 81b233999f03bc919176973569204c021c05ab25c7a2a367bc8b2736617b68a9
MD5 c52d1f5a427ce535a97cd2f877f7f444
SHA1 06d9e70e1c4978159e31af7a8928bcd9500acfd8
SHA512 cb781f734e44cbddf2ddad6b5e2f62976b6f58852abd694a8dbb5824c9c27a911baa93efe3c83784355bfaf0606ad0d638893270896dfe57d781e2f906e57951
TLSH
T198C08C8262C9AA0F6845242356BAD88C91666C1A3E40FF40830484095280948E0D9285
MD5 SHA1 SHA512 TLSH

Submit Download

21qvjaau.exe

Path C:\Users\Admin\AppData\Roaming\21qvjaau.exe
Size 45KB
SHA256 b314d188f9ae23f363c1d1297cd9f9bb67ecf933522a9f488e67a6cb7c202a18
MD5 e9e90981a62122484b1b2952152bd3f9
SHA1 76b4c50ee4798661dad4ba3f74e8e50e41a82ac8
SHA512 b2d5cc9c0d69636993c723fdf3c23ec3a569f2ab4e8f7fa2b7b972286a5f100aac9ec4f423a089775e79d797a4dde3f412f7a5789a2f971142b46852248caf15
SSDEEP 768:RuxkJTVmU5EkWUGMKSmo2q1umaPcl83APITpzjbvgX3igV2yM6MYeyTBDZcx:RuxkJTgip2PfcS3lTp3bYXSgYyM6BVde
TLSH
T14F233B0037E8813BF2BE4F7899F22145467AF2637603D6591CC452DB4A23FC69A426FD
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/2700-12-0x0000000074870000-0x000000007502C000-memory.dmp

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memory/2700-14-0x0000000074870000-0x000000007502C000-memory.dmp

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memory/3100-0-0x0000000074A52000-0x0000000074A53000-memory.dmp

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memory/3100-1-0x00000000009F0000-0x0000000000A02000-memory.dmp

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memory/3100-2-0x0000000074A40000-0x00000000751FC000-memory.dmp

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memory/3100-3-0x00000000055E0000-0x000000000567C000-memory.dmp

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memory/3100-8-0x0000000074A40000-0x00000000751FC000-memory.dmp

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