asyncrat | 3a5d3a4d74ff51ad6d1e6ffbf23cfae81dcfe8a306c74554fb0cd3a4d5fa2663

Analysis

max time kernel
6s
max time network
146s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260709-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
04/08/2026, 07:14

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General

Target
3a5d3a4d74ff51ad6d1e6ffbf23cfae81dcfe8a306c74554fb0cd3a4d5fa2663.exe
Size 45KB
Sample260804-h263bsteqa
SHA256 3a5d3a4d74ff51ad6d1e6ffbf23cfae81dcfe8a306c74554fb0cd3a4d5fa2663
MD5 b00877af5db585124465f58e7e201971
SHA1 ffddaa244ce96a3c048ad9d86733be41b756985f
SHA512 23d96181924b5ab9eeb3e439d8a0e7d59f95c1aaed3bda11f7a54333ad5c83946569e5634d7c2b99d5931bd93f086c9062541415b8f7d2a7085322d46a5b9c09
SSDEEP 768:EufspTfzcR6uWUcb+wmo2q9oozfy3CKPI0qjbfgX3iMPq/A65pNf++7jBDZsx:EufspTf2g20TR0mboXStA65jHldsx
TLSH
T161232C003BE9C12BF2BE4F789DF26145867AF6632603D54A1CC4119B5723FC69A426FE
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

xemcliphot.net:80
xemcliphot.net:22
xemcliphot.net:8080
xemcliphot.net:8880
xemcliphot.net:2052
xemcliphot.net:2082
xemcliphot.net:2086
xemcliphot.net:2095
xemcliphot.net:443
xemcliphot.net:2053
xemcliphot.net:2083
xemcliphot.net:2087
xemcliphot.net:2096
xemcliphot.net:8443
www.xemcliphot.net:80
www.xemcliphot.net:22
www.xemcliphot.net:8080
www.xemcliphot.net:8880
www.xemcliphot.net:2052
www.xemcliphot.net:2082
www.xemcliphot.net:2086
www.xemcliphot.net:2095
www.xemcliphot.net:443
www.xemcliphot.net:2053
www.xemcliphot.net:2083
www.xemcliphot.net:2087
www.xemcliphot.net:2096
www.xemcliphot.net:8443
klez.xemcliphot.net:80
klez.xemcliphot.net:22
klez.xemcliphot.net:8080
klez.xemcliphot.net:8880
klez.xemcliphot.net:2052
klez.xemcliphot.net:2082
klez.xemcliphot.net:2086
klez.xemcliphot.net:2095
klez.xemcliphot.net:443
klez.xemcliphot.net:2053
klez.xemcliphot.net:2083
klez.xemcliphot.net:2087
klez.xemcliphot.net:2096
klez.xemcliphot.net:8443
malware.xemcliphot.net:80
malware.xemcliphot.net:22
malware.xemcliphot.net:8080
malware.xemcliphot.net:8880
malware.xemcliphot.net:2052
malware.xemcliphot.net:2082
malware.xemcliphot.net:2086
malware.xemcliphot.net:2095
malware.xemcliphot.net:443
malware.xemcliphot.net:2053
malware.xemcliphot.net:2083
malware.xemcliphot.net:2087
malware.xemcliphot.net:2096
malware.xemcliphot.net:8443
remote.xemcliphot.net:80
remote.xemcliphot.net:22
remote.xemcliphot.net:8080
remote.xemcliphot.net:8880
remote.xemcliphot.net:2052
remote.xemcliphot.net:2082
remote.xemcliphot.net:2086
remote.xemcliphot.net:2095
remote.xemcliphot.net:443
remote.xemcliphot.net:2053
remote.xemcliphot.net:2083
remote.xemcliphot.net:2087
remote.xemcliphot.net:2096
remote.xemcliphot.net:8443

Mutex

vX7KA52tMOnh

Attributes

delay
0
install
true
install_file
8iffnxb.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/0x000d00000001c645-10.dat	family_asyncrat

Executes dropped EXE 2 IoCs

pid	Process
4340	8iffnxb.exe
2352	8iffnxb.exe

Outbound SSH connection to public host 2 TTPs 4 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
SSH destination	12	172.67.154.81:22
SSH destination	13	104.21.48.157:22
SSH destination	9	172.67.154.81:22
SSH destination	10	104.21.48.157:22

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
4352	cmd.exe
4164	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	timeout.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	8iffnxb.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	8iffnxb.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	3a5d3a4d74ff51ad6d1e6ffbf23cfae81dcfe8a306c74554fb0cd3a4d5fa2663.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
3348	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
1408	schtasks.exe

Suspicious behavior: EnumeratesProcesses 31 IoCs

pid	Process
5564	3a5d3a4d74ff51ad6d1e6ffbf23cfae81dcfe8a306c74554fb0cd3a4d5fa2663.exe
5564	3a5d3a4d74ff51ad6d1e6ffbf23cfae81dcfe8a306c74554fb0cd3a4d5fa2663.exe
5564	3a5d3a4d74ff51ad6d1e6ffbf23cfae81dcfe8a306c74554fb0cd3a4d5fa2663.exe
5564	3a5d3a4d74ff51ad6d1e6ffbf23cfae81dcfe8a306c74554fb0cd3a4d5fa2663.exe
5564	3a5d3a4d74ff51ad6d1e6ffbf23cfae81dcfe8a306c74554fb0cd3a4d5fa2663.exe
5564	3a5d3a4d74ff51ad6d1e6ffbf23cfae81dcfe8a306c74554fb0cd3a4d5fa2663.exe
5564	3a5d3a4d74ff51ad6d1e6ffbf23cfae81dcfe8a306c74554fb0cd3a4d5fa2663.exe
5564	3a5d3a4d74ff51ad6d1e6ffbf23cfae81dcfe8a306c74554fb0cd3a4d5fa2663.exe
5564	3a5d3a4d74ff51ad6d1e6ffbf23cfae81dcfe8a306c74554fb0cd3a4d5fa2663.exe
5564	3a5d3a4d74ff51ad6d1e6ffbf23cfae81dcfe8a306c74554fb0cd3a4d5fa2663.exe
5564	3a5d3a4d74ff51ad6d1e6ffbf23cfae81dcfe8a306c74554fb0cd3a4d5fa2663.exe
5564	3a5d3a4d74ff51ad6d1e6ffbf23cfae81dcfe8a306c74554fb0cd3a4d5fa2663.exe
5564	3a5d3a4d74ff51ad6d1e6ffbf23cfae81dcfe8a306c74554fb0cd3a4d5fa2663.exe
5564	3a5d3a4d74ff51ad6d1e6ffbf23cfae81dcfe8a306c74554fb0cd3a4d5fa2663.exe
5564	3a5d3a4d74ff51ad6d1e6ffbf23cfae81dcfe8a306c74554fb0cd3a4d5fa2663.exe
5564	3a5d3a4d74ff51ad6d1e6ffbf23cfae81dcfe8a306c74554fb0cd3a4d5fa2663.exe
5564	3a5d3a4d74ff51ad6d1e6ffbf23cfae81dcfe8a306c74554fb0cd3a4d5fa2663.exe
5564	3a5d3a4d74ff51ad6d1e6ffbf23cfae81dcfe8a306c74554fb0cd3a4d5fa2663.exe
5564	3a5d3a4d74ff51ad6d1e6ffbf23cfae81dcfe8a306c74554fb0cd3a4d5fa2663.exe
5564	3a5d3a4d74ff51ad6d1e6ffbf23cfae81dcfe8a306c74554fb0cd3a4d5fa2663.exe
5564	3a5d3a4d74ff51ad6d1e6ffbf23cfae81dcfe8a306c74554fb0cd3a4d5fa2663.exe
5564	3a5d3a4d74ff51ad6d1e6ffbf23cfae81dcfe8a306c74554fb0cd3a4d5fa2663.exe
5564	3a5d3a4d74ff51ad6d1e6ffbf23cfae81dcfe8a306c74554fb0cd3a4d5fa2663.exe
5564	3a5d3a4d74ff51ad6d1e6ffbf23cfae81dcfe8a306c74554fb0cd3a4d5fa2663.exe
5564	3a5d3a4d74ff51ad6d1e6ffbf23cfae81dcfe8a306c74554fb0cd3a4d5fa2663.exe
5564	3a5d3a4d74ff51ad6d1e6ffbf23cfae81dcfe8a306c74554fb0cd3a4d5fa2663.exe
5564	3a5d3a4d74ff51ad6d1e6ffbf23cfae81dcfe8a306c74554fb0cd3a4d5fa2663.exe
5564	3a5d3a4d74ff51ad6d1e6ffbf23cfae81dcfe8a306c74554fb0cd3a4d5fa2663.exe
5564	3a5d3a4d74ff51ad6d1e6ffbf23cfae81dcfe8a306c74554fb0cd3a4d5fa2663.exe
5564	3a5d3a4d74ff51ad6d1e6ffbf23cfae81dcfe8a306c74554fb0cd3a4d5fa2663.exe
5564	3a5d3a4d74ff51ad6d1e6ffbf23cfae81dcfe8a306c74554fb0cd3a4d5fa2663.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	5564	3a5d3a4d74ff51ad6d1e6ffbf23cfae81dcfe8a306c74554fb0cd3a4d5fa2663.exe
Token: SeDebugPrivilege	4340	8iffnxb.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 5564 wrote to memory of 4164	5564	3a5d3a4d74ff51ad6d1e6ffbf23cfae81dcfe8a306c74554fb0cd3a4d5fa2663.exe	88
PID 5564 wrote to memory of 4352	5564	3a5d3a4d74ff51ad6d1e6ffbf23cfae81dcfe8a306c74554fb0cd3a4d5fa2663.exe	90
PID 4352 wrote to memory of 3348	4352	cmd.exe	92
PID 4164 wrote to memory of 1408	4164	cmd.exe	93
PID 4352 wrote to memory of 2352	4352	cmd.exe	96

C:\Users\Admin\AppData\Local\Temp\3a5d3a4d74ff51ad6d1e6ffbf23cfae81dcfe8a306c74554fb0cd3a4d5fa2663.exe
"C:\Users\Admin\AppData\Local\Temp\3a5d3a4d74ff51ad6d1e6ffbf23cfae81dcfe8a306c74554fb0cd3a4d5fa2663.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:5564
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "8iffnxb" /tr '"C:\Users\Admin\AppData\Roaming\8iffnxb.exe"' & exit
  2⤵
  - Executes a command shell one-liner
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4164
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "8iffnxb" /tr '"C:\Users\Admin\AppData\Roaming\8iffnxb.exe"'
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:1408
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmpE739.tmp.bat""
  2⤵
  - Executes a command shell one-liner
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4352
- - C:\Windows\SysWOW64\timeout.exe
    timeout 3
    3⤵
    - System Location Discovery: System Language Discovery
    - Delays execution with timeout.exe
    PID:3348
- - C:\Users\Admin\AppData\Roaming\8iffnxb.exe
    "C:\Users\Admin\AppData\Roaming\8iffnxb.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:2352

C:\Users\Admin\AppData\Roaming\8iffnxb.exe
"C:\Users\Admin\AppData\Roaming\8iffnxb.exe"
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:4340

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

tmpE739.tmp.bat

Path C:\Users\Admin\AppData\Local\Temp\tmpE739.tmp.bat
Size 151B
SHA256 22f8a307cb9c648194d02390d88ebf202db976fb43b71ef434cfc2a3759e34a0
MD5 1dd2ce3a79c90244ad6cd8a90c504cc4
SHA1 c03360f543ee018df407f08b0cd9b8dbf33b9543
SHA512 6299cfc05bd97cd64b1853a67a96d20068d730e1768de8737bfb6526d97e07f0c01344ccda987d4846637e2f664fef833b528abf45fe09d3b72b96a1fb22002e
TLSH
T16FC08C4251C6EA5E3C05146302BAA68C91B269593E44AB10C704840956C0458E0AA246
MD5 SHA1 SHA512 TLSH

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8iffnxb.exe

Path C:\Users\Admin\AppData\Roaming\8iffnxb.exe
Size 45KB
SHA256 3a5d3a4d74ff51ad6d1e6ffbf23cfae81dcfe8a306c74554fb0cd3a4d5fa2663
MD5 b00877af5db585124465f58e7e201971
SHA1 ffddaa244ce96a3c048ad9d86733be41b756985f
SHA512 23d96181924b5ab9eeb3e439d8a0e7d59f95c1aaed3bda11f7a54333ad5c83946569e5634d7c2b99d5931bd93f086c9062541415b8f7d2a7085322d46a5b9c09
SSDEEP 768:EufspTfzcR6uWUcb+wmo2q9oozfy3CKPI0qjbfgX3iMPq/A65pNf++7jBDZsx:EufspTf2g20TR0mboXStA65jHldsx
TLSH
T161232C003BE9C12BF2BE4F789DF26145867AF6632603D54A1CC4119B5723FC69A426FE
MD5 SHA1 SHA512 SSDEEP TLSH

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memory/4340-12-0x0000000074ED0000-0x000000007568C000-memory.dmp

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memory/4340-14-0x0000000074ED0000-0x000000007568C000-memory.dmp

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memory/5564-0-0x0000000075052000-0x0000000075053000-memory.dmp

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memory/5564-1-0x0000000000CA0000-0x0000000000CB2000-memory.dmp

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memory/5564-2-0x0000000075040000-0x00000000757FC000-memory.dmp

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memory/5564-3-0x00000000058A0000-0x000000000593C000-memory.dmp

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memory/5564-8-0x0000000075040000-0x00000000757FC000-memory.dmp

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