asyncrat | 4e57852e65852c492df749b436d7e55024953ff3230eca8d8b7dd20e1e81db75

Analysis

max time kernel
148s
max time network
151s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260709-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
16/08/2026, 16:18

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General

Target
4e57852e65852c492df749b436d7e55024953ff3230eca8d8b7dd20e1e81db75.exe
Size 45KB
Sample260816-tsb2daek3x
SHA256 4e57852e65852c492df749b436d7e55024953ff3230eca8d8b7dd20e1e81db75
MD5 cbdf79e445a5ffe37e3f79e549d57cd9
SHA1 2dac1b4c1da84d2b70ccbe4f0371bb082aab99cc
SHA512 e4c25cc49bb76f0c68144a756a33ccf48f4d96e22a8c41d4e9687a48cbbca42b0ebc06de7ddca17de5249ea7e9f66dfced1045d0ac47b9592658fd24acb06bf9
SSDEEP 768:Du2M5TQEdz5WU95dPmo2qbnDEbHBqj2OPI/pzjbugX3ifX76EU0YQqBBDZcx:Du2M5TQif2ayoK3/p3bRXSv76EULbdcx
TLSH
T14A230C003BE9C12BF2BE4F7898F26145867AF6632603E5491CC452D75623FC69A426FE
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

default command_and_control defense_evasion discovery execution asyncrat persistence rat

Malware Config

Extracted

Family

asyncrat

Version

0.5.8

Botnet

Default

e.streamforester.name:80
e.streamforester.name:22
e.streamforester.name:8080
e.streamforester.name:8880
e.streamforester.name:2052
e.streamforester.name:2082
e.streamforester.name:2086
e.streamforester.name:2095
e.streamforester.name:443
e.streamforester.name:2053
e.streamforester.name:2083
e.streamforester.name:2087
e.streamforester.name:2096
e.streamforester.name:8443
www.e.streamforester.name:80
www.e.streamforester.name:22
www.e.streamforester.name:8080
www.e.streamforester.name:8880
www.e.streamforester.name:2052
www.e.streamforester.name:2082
www.e.streamforester.name:2086
www.e.streamforester.name:2095
www.e.streamforester.name:443
www.e.streamforester.name:2053
www.e.streamforester.name:2083
www.e.streamforester.name:2087
www.e.streamforester.name:2096
www.e.streamforester.name:8443
gozi.e.streamforester.name:80
gozi.e.streamforester.name:22
gozi.e.streamforester.name:8080
gozi.e.streamforester.name:8880
gozi.e.streamforester.name:2052
gozi.e.streamforester.name:2082
gozi.e.streamforester.name:2086
gozi.e.streamforester.name:2095
gozi.e.streamforester.name:443
gozi.e.streamforester.name:2053
gozi.e.streamforester.name:2083
gozi.e.streamforester.name:2087
gozi.e.streamforester.name:2096
gozi.e.streamforester.name:8443
qakbot.e.streamforester.name:80
qakbot.e.streamforester.name:22
qakbot.e.streamforester.name:8080
qakbot.e.streamforester.name:8880
qakbot.e.streamforester.name:2052
qakbot.e.streamforester.name:2082
qakbot.e.streamforester.name:2086
qakbot.e.streamforester.name:2095
qakbot.e.streamforester.name:443
qakbot.e.streamforester.name:2053
qakbot.e.streamforester.name:2083
qakbot.e.streamforester.name:2087
qakbot.e.streamforester.name:2096
qakbot.e.streamforester.name:8443
hack.e.streamforester.name:80
hack.e.streamforester.name:22
hack.e.streamforester.name:8080
hack.e.streamforester.name:8880
hack.e.streamforester.name:2052
hack.e.streamforester.name:2082
hack.e.streamforester.name:2086
hack.e.streamforester.name:2095
hack.e.streamforester.name:443
hack.e.streamforester.name:2053
hack.e.streamforester.name:2083
hack.e.streamforester.name:2087
hack.e.streamforester.name:2096
hack.e.streamforester.name:8443
cl0p.e.streamforester.name:80
cl0p.e.streamforester.name:22
cl0p.e.streamforester.name:8080
cl0p.e.streamforester.name:8880
cl0p.e.streamforester.name:2052
cl0p.e.streamforester.name:2082
cl0p.e.streamforester.name:2086
cl0p.e.streamforester.name:2095
cl0p.e.streamforester.name:443
cl0p.e.streamforester.name:2053
cl0p.e.streamforester.name:2083
cl0p.e.streamforester.name:2087
cl0p.e.streamforester.name:2096
cl0p.e.streamforester.name:8443

Mutex

JrM2iE3ddzol

Attributes

delay
0
install
true
install_file
tfixju.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/0x000f00000001c51c-10.dat	family_asyncrat

Executes dropped EXE 2 IoCs

pid	Process
2604	tfixju.exe
2872	tfixju.exe

Outbound SSH connection to public host 2 TTPs 6 IoCs

SSH is used for remote access. This may indicate SSH host discovery, encrypted C2 traffic, or data exfiltration.

command_and_control

Protocol Tunneling

T1572

Network Service Discovery

T1046

description	flow	ioc	pid	Process
SSH destination	20	172.67.70.147:22		Process not Found
SSH destination	5	104.26.5.5:22	2604	tfixju.exe
SSH destination	10	104.26.4.5:22		Process not Found
SSH destination	12	172.67.70.147:22		Process not Found
SSH destination	17	104.26.5.5:22		Process not Found
SSH destination	19	104.26.4.5:22		Process not Found

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Executes a command shell one-liner 1 TTPs 2 IoCs

Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.

execution

Windows Command Shell

T1059.003

pid	Process
4688	cmd.exe
5116	cmd.exe

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	tfixju.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	4e57852e65852c492df749b436d7e55024953ff3230eca8d8b7dd20e1e81db75.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	tfixju.exe

Delays execution with timeout.exe 1 IoCs

defense_evasion

pid	Process
3728	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
4992	schtasks.exe

Suspicious behavior: EnumeratesProcesses 31 IoCs

pid	Process
3644	4e57852e65852c492df749b436d7e55024953ff3230eca8d8b7dd20e1e81db75.exe
3644	4e57852e65852c492df749b436d7e55024953ff3230eca8d8b7dd20e1e81db75.exe
3644	4e57852e65852c492df749b436d7e55024953ff3230eca8d8b7dd20e1e81db75.exe
3644	4e57852e65852c492df749b436d7e55024953ff3230eca8d8b7dd20e1e81db75.exe
3644	4e57852e65852c492df749b436d7e55024953ff3230eca8d8b7dd20e1e81db75.exe
3644	4e57852e65852c492df749b436d7e55024953ff3230eca8d8b7dd20e1e81db75.exe
3644	4e57852e65852c492df749b436d7e55024953ff3230eca8d8b7dd20e1e81db75.exe
3644	4e57852e65852c492df749b436d7e55024953ff3230eca8d8b7dd20e1e81db75.exe
3644	4e57852e65852c492df749b436d7e55024953ff3230eca8d8b7dd20e1e81db75.exe
3644	4e57852e65852c492df749b436d7e55024953ff3230eca8d8b7dd20e1e81db75.exe
3644	4e57852e65852c492df749b436d7e55024953ff3230eca8d8b7dd20e1e81db75.exe
3644	4e57852e65852c492df749b436d7e55024953ff3230eca8d8b7dd20e1e81db75.exe
3644	4e57852e65852c492df749b436d7e55024953ff3230eca8d8b7dd20e1e81db75.exe
3644	4e57852e65852c492df749b436d7e55024953ff3230eca8d8b7dd20e1e81db75.exe
3644	4e57852e65852c492df749b436d7e55024953ff3230eca8d8b7dd20e1e81db75.exe
3644	4e57852e65852c492df749b436d7e55024953ff3230eca8d8b7dd20e1e81db75.exe
3644	4e57852e65852c492df749b436d7e55024953ff3230eca8d8b7dd20e1e81db75.exe
3644	4e57852e65852c492df749b436d7e55024953ff3230eca8d8b7dd20e1e81db75.exe
3644	4e57852e65852c492df749b436d7e55024953ff3230eca8d8b7dd20e1e81db75.exe
3644	4e57852e65852c492df749b436d7e55024953ff3230eca8d8b7dd20e1e81db75.exe
3644	4e57852e65852c492df749b436d7e55024953ff3230eca8d8b7dd20e1e81db75.exe
3644	4e57852e65852c492df749b436d7e55024953ff3230eca8d8b7dd20e1e81db75.exe
3644	4e57852e65852c492df749b436d7e55024953ff3230eca8d8b7dd20e1e81db75.exe
3644	4e57852e65852c492df749b436d7e55024953ff3230eca8d8b7dd20e1e81db75.exe
3644	4e57852e65852c492df749b436d7e55024953ff3230eca8d8b7dd20e1e81db75.exe
3644	4e57852e65852c492df749b436d7e55024953ff3230eca8d8b7dd20e1e81db75.exe
3644	4e57852e65852c492df749b436d7e55024953ff3230eca8d8b7dd20e1e81db75.exe
3644	4e57852e65852c492df749b436d7e55024953ff3230eca8d8b7dd20e1e81db75.exe
3644	4e57852e65852c492df749b436d7e55024953ff3230eca8d8b7dd20e1e81db75.exe
3644	4e57852e65852c492df749b436d7e55024953ff3230eca8d8b7dd20e1e81db75.exe
3644	4e57852e65852c492df749b436d7e55024953ff3230eca8d8b7dd20e1e81db75.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3644	4e57852e65852c492df749b436d7e55024953ff3230eca8d8b7dd20e1e81db75.exe
Token: SeDebugPrivilege	2604	tfixju.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 3644 wrote to memory of 4688	3644	4e57852e65852c492df749b436d7e55024953ff3230eca8d8b7dd20e1e81db75.exe	89
PID 3644 wrote to memory of 5116	3644	4e57852e65852c492df749b436d7e55024953ff3230eca8d8b7dd20e1e81db75.exe	90
PID 4688 wrote to memory of 4992	4688	cmd.exe	93
PID 5116 wrote to memory of 3728	5116	cmd.exe	94
PID 5116 wrote to memory of 2872	5116	cmd.exe	97

C:\Users\Admin\AppData\Local\Temp\4e57852e65852c492df749b436d7e55024953ff3230eca8d8b7dd20e1e81db75.exe
"C:\Users\Admin\AppData\Local\Temp\4e57852e65852c492df749b436d7e55024953ff3230eca8d8b7dd20e1e81db75.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3644
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "tfixju" /tr '"C:\Users\Admin\AppData\Roaming\tfixju.exe"' & exit
  2⤵
  - Executes a command shell one-liner
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4688
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "tfixju" /tr '"C:\Users\Admin\AppData\Roaming\tfixju.exe"'
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:4992
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmpE1.tmp.bat""
  2⤵
  - Executes a command shell one-liner
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:5116
- - C:\Windows\SysWOW64\timeout.exe
    timeout 3
    3⤵
    - System Location Discovery: System Language Discovery
    - Delays execution with timeout.exe
    PID:3728
- - C:\Users\Admin\AppData\Roaming\tfixju.exe
    "C:\Users\Admin\AppData\Roaming\tfixju.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:2872

C:\Users\Admin\AppData\Roaming\tfixju.exe
"C:\Users\Admin\AppData\Roaming\tfixju.exe"
1⤵
- Executes dropped EXE
- Outbound SSH connection to public host
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:2604

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

Windows Command Shell

T1059.003

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

Network Service Discovery

T1046

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Protocol Tunneling

T1572

Exfiltration

Impact

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Downloads

tmpE1.tmp.bat

Path C:\Users\Admin\AppData\Local\Temp\tmpE1.tmp.bat
Size 148B
SHA256 5812e712dad39fcc62c258c522dfdad031d8df008c3533164a4c6d5da73830de
MD5 2209ce5d62f5e793ba890f780a7156dc
SHA1 c5d9170b98a6056d177c66f1b3101c5da6c67e1f
SHA512 d73a0ba3de884be49bce41e7df79110968cddea475966ab2daf41b09898d1f9d0cb1d8cb1800a070916702bccdac02e965d36040d8dfb5239232883a8454d0ae
TLSH
T118C02B5271C6EB4E3805245302FED58C91726C1A3F44FB00C344844D52C085CF0EE342
MD5 SHA1 SHA512 TLSH

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tfixju.exe

Path C:\Users\Admin\AppData\Roaming\tfixju.exe
Size 45KB
SHA256 4e57852e65852c492df749b436d7e55024953ff3230eca8d8b7dd20e1e81db75
MD5 cbdf79e445a5ffe37e3f79e549d57cd9
SHA1 2dac1b4c1da84d2b70ccbe4f0371bb082aab99cc
SHA512 e4c25cc49bb76f0c68144a756a33ccf48f4d96e22a8c41d4e9687a48cbbca42b0ebc06de7ddca17de5249ea7e9f66dfced1045d0ac47b9592658fd24acb06bf9
SSDEEP 768:Du2M5TQEdz5WU95dPmo2qbnDEbHBqj2OPI/pzjbugX3ifX76EU0YQqBBDZcx:Du2M5TQif2ayoK3/p3bRXSv76EULbdcx
TLSH
T14A230C003BE9C12BF2BE4F7898F26145867AF6632603E5491CC452D75623FC69A426FE
MD5 SHA1 SHA512 SSDEEP TLSH

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memory/2604-12-0x0000000074900000-0x00000000750BC000-memory.dmp

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memory/2604-14-0x0000000074900000-0x00000000750BC000-memory.dmp

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memory/3644-0-0x0000000074A82000-0x0000000074A83000-memory.dmp

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memory/3644-1-0x0000000000D50000-0x0000000000D62000-memory.dmp

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memory/3644-2-0x0000000074A70000-0x000000007522C000-memory.dmp

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memory/3644-3-0x00000000058C0000-0x000000000595C000-memory.dmp

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memory/3644-8-0x0000000074A70000-0x000000007522C000-memory.dmp

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