asyncrat | 42978e510918297f6eb7a216f4e90d963d87459ab5040b9300bc09426a354df8

Analysis

max time kernel
148s
max time network
149s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260629-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260629-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
02/07/2026, 06:50

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General

Target
42978e510918297f6eb7a216f4e90d963d87459ab5040b9300bc09426a354df8.exe
Size 45KB
Sample260702-hmdr8sdt9v
SHA256 42978e510918297f6eb7a216f4e90d963d87459ab5040b9300bc09426a354df8
MD5 4ef8ca2cb47f3d6ae1904a8258d85cca
SHA1 f74128e17a198727eeded29988bb945d5ee4f114
SHA512 317afaa26ca20d9a7e1ada83882f0d6d99d439cd06b4e12690bddefe3bb9f7a714c46ef0200ead510fdd0931d6c4b2e55aea103c4def2cb9a909acadbe552d85
SSDEEP 768:QulLJTEs+EgWUKJTGmo2q9pRzMwnOPIZzjbQgX3iHPTic6IxwKeXBDZTx:QulLJTE9X2CA+3Z3bXXSvTicLxDeRdTx
TLSH
T14C231C003BE8812BF2BE4F789DF26145867AF6673603D54E1C8441DB5613FC69A42AFE
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

sexzz.cc:80
sexzz.cc:22
sexzz.cc:8080
sexzz.cc:8880
sexzz.cc:2052
sexzz.cc:2082
sexzz.cc:2086
sexzz.cc:2095
sexzz.cc:443
sexzz.cc:2053
sexzz.cc:2083
sexzz.cc:2087
sexzz.cc:2096
sexzz.cc:8443
www.sexzz.cc:80
www.sexzz.cc:22
www.sexzz.cc:8080
www.sexzz.cc:8880
www.sexzz.cc:2052
www.sexzz.cc:2082
www.sexzz.cc:2086
www.sexzz.cc:2095
www.sexzz.cc:443
www.sexzz.cc:2053
www.sexzz.cc:2083
www.sexzz.cc:2087
www.sexzz.cc:2096
www.sexzz.cc:8443
hacker.sexzz.cc:80
hacker.sexzz.cc:22
hacker.sexzz.cc:8080
hacker.sexzz.cc:8880
hacker.sexzz.cc:2052
hacker.sexzz.cc:2082
hacker.sexzz.cc:2086
hacker.sexzz.cc:2095
hacker.sexzz.cc:443
hacker.sexzz.cc:2053
hacker.sexzz.cc:2083
hacker.sexzz.cc:2087
hacker.sexzz.cc:2096
hacker.sexzz.cc:8443
malware.sexzz.cc:80
malware.sexzz.cc:22
malware.sexzz.cc:8080
malware.sexzz.cc:8880
malware.sexzz.cc:2052
malware.sexzz.cc:2082
malware.sexzz.cc:2086
malware.sexzz.cc:2095
malware.sexzz.cc:443
malware.sexzz.cc:2053
malware.sexzz.cc:2083
malware.sexzz.cc:2087
malware.sexzz.cc:2096
malware.sexzz.cc:8443

Mutex

C6AyIq6NCmYL

Attributes

delay
0
install
true
install_file
y8q7gf.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/0x000f00000001c566-10.dat	family_asyncrat

Executes dropped EXE 2 IoCs

pid	Process
3944	y8q7gf.exe
5952	y8q7gf.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	42978e510918297f6eb7a216f4e90d963d87459ab5040b9300bc09426a354df8.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
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	y8q7gf.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	y8q7gf.exe

Delays execution with timeout.exe 1 IoCs

defense_evasion

pid	Process
464	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
1916	schtasks.exe

Suspicious behavior: EnumeratesProcesses 29 IoCs

pid	Process
3984	42978e510918297f6eb7a216f4e90d963d87459ab5040b9300bc09426a354df8.exe
3984	42978e510918297f6eb7a216f4e90d963d87459ab5040b9300bc09426a354df8.exe
3984	42978e510918297f6eb7a216f4e90d963d87459ab5040b9300bc09426a354df8.exe
3984	42978e510918297f6eb7a216f4e90d963d87459ab5040b9300bc09426a354df8.exe
3984	42978e510918297f6eb7a216f4e90d963d87459ab5040b9300bc09426a354df8.exe
3984	42978e510918297f6eb7a216f4e90d963d87459ab5040b9300bc09426a354df8.exe
3984	42978e510918297f6eb7a216f4e90d963d87459ab5040b9300bc09426a354df8.exe
3984	42978e510918297f6eb7a216f4e90d963d87459ab5040b9300bc09426a354df8.exe
3984	42978e510918297f6eb7a216f4e90d963d87459ab5040b9300bc09426a354df8.exe
3984	42978e510918297f6eb7a216f4e90d963d87459ab5040b9300bc09426a354df8.exe
3984	42978e510918297f6eb7a216f4e90d963d87459ab5040b9300bc09426a354df8.exe
3984	42978e510918297f6eb7a216f4e90d963d87459ab5040b9300bc09426a354df8.exe
3984	42978e510918297f6eb7a216f4e90d963d87459ab5040b9300bc09426a354df8.exe
3984	42978e510918297f6eb7a216f4e90d963d87459ab5040b9300bc09426a354df8.exe
3984	42978e510918297f6eb7a216f4e90d963d87459ab5040b9300bc09426a354df8.exe
3984	42978e510918297f6eb7a216f4e90d963d87459ab5040b9300bc09426a354df8.exe
3984	42978e510918297f6eb7a216f4e90d963d87459ab5040b9300bc09426a354df8.exe
3984	42978e510918297f6eb7a216f4e90d963d87459ab5040b9300bc09426a354df8.exe
3984	42978e510918297f6eb7a216f4e90d963d87459ab5040b9300bc09426a354df8.exe
3984	42978e510918297f6eb7a216f4e90d963d87459ab5040b9300bc09426a354df8.exe
3984	42978e510918297f6eb7a216f4e90d963d87459ab5040b9300bc09426a354df8.exe
3984	42978e510918297f6eb7a216f4e90d963d87459ab5040b9300bc09426a354df8.exe
3984	42978e510918297f6eb7a216f4e90d963d87459ab5040b9300bc09426a354df8.exe
3984	42978e510918297f6eb7a216f4e90d963d87459ab5040b9300bc09426a354df8.exe
3984	42978e510918297f6eb7a216f4e90d963d87459ab5040b9300bc09426a354df8.exe
3984	42978e510918297f6eb7a216f4e90d963d87459ab5040b9300bc09426a354df8.exe
3984	42978e510918297f6eb7a216f4e90d963d87459ab5040b9300bc09426a354df8.exe
3984	42978e510918297f6eb7a216f4e90d963d87459ab5040b9300bc09426a354df8.exe
3984	42978e510918297f6eb7a216f4e90d963d87459ab5040b9300bc09426a354df8.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3984	42978e510918297f6eb7a216f4e90d963d87459ab5040b9300bc09426a354df8.exe
Token: SeDebugPrivilege	3944	y8q7gf.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 3984 wrote to memory of 4420	3984	42978e510918297f6eb7a216f4e90d963d87459ab5040b9300bc09426a354df8.exe	88
PID 3984 wrote to memory of 4816	3984	42978e510918297f6eb7a216f4e90d963d87459ab5040b9300bc09426a354df8.exe	89
PID 4420 wrote to memory of 1916	4420	cmd.exe	92
PID 4816 wrote to memory of 464	4816	cmd.exe	93
PID 4816 wrote to memory of 5952	4816	cmd.exe	96

C:\Users\Admin\AppData\Local\Temp\42978e510918297f6eb7a216f4e90d963d87459ab5040b9300bc09426a354df8.exe
"C:\Users\Admin\AppData\Local\Temp\42978e510918297f6eb7a216f4e90d963d87459ab5040b9300bc09426a354df8.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3984
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "y8q7gf" /tr '"C:\Users\Admin\AppData\Roaming\y8q7gf.exe"' & exit
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4420
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "y8q7gf" /tr '"C:\Users\Admin\AppData\Roaming\y8q7gf.exe"'
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:1916
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp2438.tmp.bat""
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4816
- - C:\Windows\SysWOW64\timeout.exe
    timeout 3
    3⤵
    - System Location Discovery: System Language Discovery
    - Delays execution with timeout.exe
    PID:464
- - C:\Users\Admin\AppData\Roaming\y8q7gf.exe
    "C:\Users\Admin\AppData\Roaming\y8q7gf.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:5952

C:\Users\Admin\AppData\Roaming\y8q7gf.exe
"C:\Users\Admin\AppData\Roaming\y8q7gf.exe"
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:3944

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

tmp2438.tmp.bat

Path C:\Users\Admin\AppData\Local\Temp\tmp2438.tmp.bat
Size 150B
SHA256 de6fdbb369122482e907ac9a931cf97c3eb4144aa3952cf8f9d081aa83ab1b59
MD5 40f357e84fcbe11c98768231e5360eb1
SHA1 b9da8aa50cfe485b2dd3f2404cd993bee2ba9f60
SHA512 6a1c08c2ca39b73fef89f1a199aa831896d3f8dad6b391a54391738e7a801a4404a82902eca3c5449892e857f6ac54c9ccafa47a0cec6250acd431a75fd2fffe
TLSH
T134C02B9371CDFB2F6845681302FEE98DA173AC1D3F44BB20C304800D2680448F0DD385
MD5 SHA1 SHA512 TLSH

Submit Download

y8q7gf.exe

Path C:\Users\Admin\AppData\Roaming\y8q7gf.exe
Size 45KB
SHA256 42978e510918297f6eb7a216f4e90d963d87459ab5040b9300bc09426a354df8
MD5 4ef8ca2cb47f3d6ae1904a8258d85cca
SHA1 f74128e17a198727eeded29988bb945d5ee4f114
SHA512 317afaa26ca20d9a7e1ada83882f0d6d99d439cd06b4e12690bddefe3bb9f7a714c46ef0200ead510fdd0931d6c4b2e55aea103c4def2cb9a909acadbe552d85
SSDEEP 768:QulLJTEs+EgWUKJTGmo2q9pRzMwnOPIZzjbQgX3iHPTic6IxwKeXBDZTx:QulLJTE9X2CA+3Z3bXXSvTicLxDeRdTx
TLSH
T14C231C003BE8812BF2BE4F789DF26145867AF6673603D54E1C8441DB5613FC69A42AFE
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/3944-12-0x0000000074B20000-0x00000000752DC000-memory.dmp

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memory/3944-14-0x0000000074B20000-0x00000000752DC000-memory.dmp

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memory/3984-0-0x0000000074CA2000-0x0000000074CA3000-memory.dmp

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memory/3984-1-0x00000000009C0000-0x00000000009D2000-memory.dmp

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memory/3984-2-0x0000000074C90000-0x000000007544C000-memory.dmp

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memory/3984-3-0x00000000055C0000-0x000000000565C000-memory.dmp

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memory/3984-8-0x0000000074C90000-0x000000007544C000-memory.dmp

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