asyncrat | e9d8d7f54da28fce54fe747804eae60e1d9a29fdab341759ea0313d9584db204

Analysis

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

arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
03/08/2026, 05:09

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General

Target
e9d8d7f54da28fce54fe747804eae60e1d9a29fdab341759ea0313d9584db204.exe
Size 45KB
Sample260803-ftft3aygre
SHA256 e9d8d7f54da28fce54fe747804eae60e1d9a29fdab341759ea0313d9584db204
MD5 9be1f8f67ad30ad5bd659c735a2257eb
SHA1 5e2b0b29d68dd229872cd3972ca5bcb0f0864125
SHA512 9a4b53c448406be7898a8012dc541725d3b9fafc9c4f6e8b41d2e1d1adbb1808cb3051800b619e9107ab4f5de0117137b41bd9cfec41a577e62dbfcfc7c5579a
SSDEEP 768:EufspTfzcR6uWUcb+wmo2q98ITnyfaaPIIzjbBgX3iTBbMuHuEhfzeBDZsx:EufspTf2g23EhI3buXStVHuE+dsx
TLSH
T16F232B0037E9C12BF2BF4B78A9F26146467AF6637603D64A1CC4119B5713FC68A426FE
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

xcavengon.click:80
xcavengon.click:22
xcavengon.click:8080
xcavengon.click:8880
xcavengon.click:2052
xcavengon.click:2082
xcavengon.click:2086
xcavengon.click:2095
xcavengon.click:443
xcavengon.click:2053
xcavengon.click:2083
xcavengon.click:2087
xcavengon.click:2096
xcavengon.click:8443
www.xcavengon.click:80
www.xcavengon.click:22
www.xcavengon.click:8080
www.xcavengon.click:8880
www.xcavengon.click:2052
www.xcavengon.click:2082
www.xcavengon.click:2086
www.xcavengon.click:2095
www.xcavengon.click:443
www.xcavengon.click:2053
www.xcavengon.click:2083
www.xcavengon.click:2087
www.xcavengon.click:2096
www.xcavengon.click:8443
sasser.xcavengon.click:80
sasser.xcavengon.click:22
sasser.xcavengon.click:8080
sasser.xcavengon.click:8880
sasser.xcavengon.click:2052
sasser.xcavengon.click:2082
sasser.xcavengon.click:2086
sasser.xcavengon.click:2095
sasser.xcavengon.click:443
sasser.xcavengon.click:2053
sasser.xcavengon.click:2083
sasser.xcavengon.click:2087
sasser.xcavengon.click:2096
sasser.xcavengon.click:8443
downadup.xcavengon.click:80
downadup.xcavengon.click:22
downadup.xcavengon.click:8080
downadup.xcavengon.click:8880
downadup.xcavengon.click:2052
downadup.xcavengon.click:2082
downadup.xcavengon.click:2086
downadup.xcavengon.click:2095
downadup.xcavengon.click:443
downadup.xcavengon.click:2053
downadup.xcavengon.click:2083
downadup.xcavengon.click:2087
downadup.xcavengon.click:2096
downadup.xcavengon.click:8443
client.xcavengon.click:80
client.xcavengon.click:22
client.xcavengon.click:8080
client.xcavengon.click:8880
client.xcavengon.click:2052
client.xcavengon.click:2082
client.xcavengon.click:2086
client.xcavengon.click:2095
client.xcavengon.click:443
client.xcavengon.click:2053
client.xcavengon.click:2083
client.xcavengon.click:2087
client.xcavengon.click:2096
client.xcavengon.click:8443

Mutex

MjfAME5oAxul

Attributes

delay
0
install
true
install_file
er0akc3.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/0x00090000000167e7-10.dat	family_asyncrat

Executes dropped EXE 2 IoCs

pid	Process
4272	er0akc3.exe
4416	er0akc3.exe

Outbound SSH connection to public host 2 TTPs 3 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	10	104.21.10.8:22
SSH destination	12	172.67.189.217:22
SSH destination	16	104.21.10.8:22

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
2384	cmd.exe
1288	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	e9d8d7f54da28fce54fe747804eae60e1d9a29fdab341759ea0313d9584db204.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	er0akc3.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	er0akc3.exe

Delays execution with timeout.exe 1 IoCs

defense_evasion

pid	Process
3260	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
2516	schtasks.exe

Suspicious behavior: EnumeratesProcesses 31 IoCs

pid	Process
2496	e9d8d7f54da28fce54fe747804eae60e1d9a29fdab341759ea0313d9584db204.exe
2496	e9d8d7f54da28fce54fe747804eae60e1d9a29fdab341759ea0313d9584db204.exe
2496	e9d8d7f54da28fce54fe747804eae60e1d9a29fdab341759ea0313d9584db204.exe
2496	e9d8d7f54da28fce54fe747804eae60e1d9a29fdab341759ea0313d9584db204.exe
2496	e9d8d7f54da28fce54fe747804eae60e1d9a29fdab341759ea0313d9584db204.exe
2496	e9d8d7f54da28fce54fe747804eae60e1d9a29fdab341759ea0313d9584db204.exe
2496	e9d8d7f54da28fce54fe747804eae60e1d9a29fdab341759ea0313d9584db204.exe
2496	e9d8d7f54da28fce54fe747804eae60e1d9a29fdab341759ea0313d9584db204.exe
2496	e9d8d7f54da28fce54fe747804eae60e1d9a29fdab341759ea0313d9584db204.exe
2496	e9d8d7f54da28fce54fe747804eae60e1d9a29fdab341759ea0313d9584db204.exe
2496	e9d8d7f54da28fce54fe747804eae60e1d9a29fdab341759ea0313d9584db204.exe
2496	e9d8d7f54da28fce54fe747804eae60e1d9a29fdab341759ea0313d9584db204.exe
2496	e9d8d7f54da28fce54fe747804eae60e1d9a29fdab341759ea0313d9584db204.exe
2496	e9d8d7f54da28fce54fe747804eae60e1d9a29fdab341759ea0313d9584db204.exe
2496	e9d8d7f54da28fce54fe747804eae60e1d9a29fdab341759ea0313d9584db204.exe
2496	e9d8d7f54da28fce54fe747804eae60e1d9a29fdab341759ea0313d9584db204.exe
2496	e9d8d7f54da28fce54fe747804eae60e1d9a29fdab341759ea0313d9584db204.exe
2496	e9d8d7f54da28fce54fe747804eae60e1d9a29fdab341759ea0313d9584db204.exe
2496	e9d8d7f54da28fce54fe747804eae60e1d9a29fdab341759ea0313d9584db204.exe
2496	e9d8d7f54da28fce54fe747804eae60e1d9a29fdab341759ea0313d9584db204.exe
2496	e9d8d7f54da28fce54fe747804eae60e1d9a29fdab341759ea0313d9584db204.exe
2496	e9d8d7f54da28fce54fe747804eae60e1d9a29fdab341759ea0313d9584db204.exe
2496	e9d8d7f54da28fce54fe747804eae60e1d9a29fdab341759ea0313d9584db204.exe
2496	e9d8d7f54da28fce54fe747804eae60e1d9a29fdab341759ea0313d9584db204.exe
2496	e9d8d7f54da28fce54fe747804eae60e1d9a29fdab341759ea0313d9584db204.exe
2496	e9d8d7f54da28fce54fe747804eae60e1d9a29fdab341759ea0313d9584db204.exe
2496	e9d8d7f54da28fce54fe747804eae60e1d9a29fdab341759ea0313d9584db204.exe
2496	e9d8d7f54da28fce54fe747804eae60e1d9a29fdab341759ea0313d9584db204.exe
2496	e9d8d7f54da28fce54fe747804eae60e1d9a29fdab341759ea0313d9584db204.exe
2496	e9d8d7f54da28fce54fe747804eae60e1d9a29fdab341759ea0313d9584db204.exe
2496	e9d8d7f54da28fce54fe747804eae60e1d9a29fdab341759ea0313d9584db204.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2496	e9d8d7f54da28fce54fe747804eae60e1d9a29fdab341759ea0313d9584db204.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 2496 wrote to memory of 2384	2496	e9d8d7f54da28fce54fe747804eae60e1d9a29fdab341759ea0313d9584db204.exe	88
PID 2496 wrote to memory of 1288	2496	e9d8d7f54da28fce54fe747804eae60e1d9a29fdab341759ea0313d9584db204.exe	90
PID 2384 wrote to memory of 2516	2384	cmd.exe	92
PID 1288 wrote to memory of 3260	1288	cmd.exe	93
PID 1288 wrote to memory of 4416	1288	cmd.exe	96

C:\Users\Admin\AppData\Local\Temp\e9d8d7f54da28fce54fe747804eae60e1d9a29fdab341759ea0313d9584db204.exe
"C:\Users\Admin\AppData\Local\Temp\e9d8d7f54da28fce54fe747804eae60e1d9a29fdab341759ea0313d9584db204.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2496
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "er0akc3" /tr '"C:\Users\Admin\AppData\Roaming\er0akc3.exe"' & exit
  2⤵
  - Executes a command shell one-liner
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2384
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "er0akc3" /tr '"C:\Users\Admin\AppData\Roaming\er0akc3.exe"'
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:2516
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmpAB69.tmp.bat""
  2⤵
  - Executes a command shell one-liner
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1288
- - C:\Windows\SysWOW64\timeout.exe
    timeout 3
    3⤵
    - System Location Discovery: System Language Discovery
    - Delays execution with timeout.exe
    PID:3260
- - C:\Users\Admin\AppData\Roaming\er0akc3.exe
    "C:\Users\Admin\AppData\Roaming\er0akc3.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:4416

C:\Users\Admin\AppData\Roaming\er0akc3.exe
"C:\Users\Admin\AppData\Roaming\er0akc3.exe"
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:4272

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

tmpAB69.tmp.bat

Path C:\Users\Admin\AppData\Local\Temp\tmpAB69.tmp.bat
Size 151B
SHA256 97a09708ab9a3aa7fe1b58cec9748342d7610bc0cec2d202e4a036ae15ac8f62
MD5 fb53a8b4dc7eac1d97ac60e5be7945fb
SHA1 b8ae4110a753231e96eea34c0ac1f35f5702ced5
SHA512 26bdb958230158b42b2cea642f538767c083836840321a7151ad3d232c191e77a990427dfde56671e53b1b7c7188de811558c440e2f30cb2a5d1038562ace7c7
TLSH
T1AAC08C4259C6AA0E3C05946302BAE48EA162681D3F84AB009344410D5280858E0E9381
MD5 SHA1 SHA512 TLSH

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er0akc3.exe

Path C:\Users\Admin\AppData\Roaming\er0akc3.exe
Size 45KB
SHA256 e9d8d7f54da28fce54fe747804eae60e1d9a29fdab341759ea0313d9584db204
MD5 9be1f8f67ad30ad5bd659c735a2257eb
SHA1 5e2b0b29d68dd229872cd3972ca5bcb0f0864125
SHA512 9a4b53c448406be7898a8012dc541725d3b9fafc9c4f6e8b41d2e1d1adbb1808cb3051800b619e9107ab4f5de0117137b41bd9cfec41a577e62dbfcfc7c5579a
SSDEEP 768:EufspTfzcR6uWUcb+wmo2q98ITnyfaaPIIzjbBgX3iTBbMuHuEhfzeBDZsx:EufspTf2g23EhI3buXStVHuE+dsx
TLSH
T16F232B0037E9C12BF2BF4B78A9F26146467AF6637603D64A1CC4119B5713FC68A426FE
MD5 SHA1 SHA512 SSDEEP TLSH

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memory/2496-0-0x0000000074372000-0x0000000074373000-memory.dmp

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memory/2496-1-0x0000000000870000-0x0000000000882000-memory.dmp

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memory/2496-2-0x0000000074360000-0x0000000074B1C000-memory.dmp

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memory/2496-3-0x0000000005480000-0x000000000551C000-memory.dmp

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memory/2496-9-0x0000000074360000-0x0000000074B1C000-memory.dmp

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memory/4272-12-0x0000000074300000-0x0000000074ABC000-memory.dmp

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memory/4272-14-0x0000000074300000-0x0000000074ABC000-memory.dmp

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