asyncrat | 5453dac7db805fe4c2ab3b6bf791c6d7156e4452cbf0f1aae17ac901621683c4

Analysis

max time kernel
148s
max time network
153s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260709-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
15/07/2026, 10:22

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General

Target
5453dac7db805fe4c2ab3b6bf791c6d7156e4452cbf0f1aae17ac901621683c4.exe
Size 45KB
Sample260715-megalsdt2t
SHA256 5453dac7db805fe4c2ab3b6bf791c6d7156e4452cbf0f1aae17ac901621683c4
MD5 f7474d62473f9205cacd9eb67ee406dd
SHA1 71226df783f0344db29cda41af0674a9c700d10b
SHA512 b3ca410e25d3a5b0f235c794f6dc416b18ff06b8dd7aec2e1104634999acb4e33652b35bee150b76263455c44f57453387e8167d719ccb77d99eeb516d16474a
SSDEEP 768:EulCJTHESwgWUK3aGmo2q98ZoQTMtPI4mjbLgX3iVr2WPPyDNIEDTBDZsx:EulCJTHl42tL34Kb0XSrXalD1dsx
TLSH
T19B231B0037E8822BE2BE5F78ACF25145867AF6673A03D64D1CC441DB5723FC59A42AED
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

sexvietfree.com:80
sexvietfree.com:22
sexvietfree.com:8080
sexvietfree.com:8880
sexvietfree.com:2052
sexvietfree.com:2082
sexvietfree.com:2086
sexvietfree.com:2095
sexvietfree.com:443
sexvietfree.com:2053
sexvietfree.com:2083
sexvietfree.com:2087
sexvietfree.com:2096
sexvietfree.com:8443
www.sexvietfree.com:80
www.sexvietfree.com:22
www.sexvietfree.com:8080
www.sexvietfree.com:8880
www.sexvietfree.com:2052
www.sexvietfree.com:2082
www.sexvietfree.com:2086
www.sexvietfree.com:2095
www.sexvietfree.com:443
www.sexvietfree.com:2053
www.sexvietfree.com:2083
www.sexvietfree.com:2087
www.sexvietfree.com:2096
www.sexvietfree.com:8443
malware.sexvietfree.com:80
malware.sexvietfree.com:22
malware.sexvietfree.com:8080
malware.sexvietfree.com:8880
malware.sexvietfree.com:2052
malware.sexvietfree.com:2082
malware.sexvietfree.com:2086
malware.sexvietfree.com:2095
malware.sexvietfree.com:443
malware.sexvietfree.com:2053
malware.sexvietfree.com:2083
malware.sexvietfree.com:2087
malware.sexvietfree.com:2096
malware.sexvietfree.com:8443
gh0st.sexvietfree.com:80
gh0st.sexvietfree.com:22
gh0st.sexvietfree.com:8080
gh0st.sexvietfree.com:8880
gh0st.sexvietfree.com:2052
gh0st.sexvietfree.com:2082
gh0st.sexvietfree.com:2086
gh0st.sexvietfree.com:2095
gh0st.sexvietfree.com:443
gh0st.sexvietfree.com:2053
gh0st.sexvietfree.com:2083
gh0st.sexvietfree.com:2087
gh0st.sexvietfree.com:2096
gh0st.sexvietfree.com:8443
sobig.sexvietfree.com:80
sobig.sexvietfree.com:22
sobig.sexvietfree.com:8080
sobig.sexvietfree.com:8880
sobig.sexvietfree.com:2052
sobig.sexvietfree.com:2082
sobig.sexvietfree.com:2086
sobig.sexvietfree.com:2095
sobig.sexvietfree.com:443
sobig.sexvietfree.com:2053
sobig.sexvietfree.com:2083
sobig.sexvietfree.com:2087
sobig.sexvietfree.com:2096
sobig.sexvietfree.com:8443

Mutex

FKE9MIS0FY6R

Attributes

delay
0
install
true
install_file
ifn1zc.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/0x0005000000016b3f-10.dat	family_asyncrat

Executes dropped EXE 1 IoCs

pid	Process
2444	ifn1zc.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 6 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	ifn1zc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	5453dac7db805fe4c2ab3b6bf791c6d7156e4452cbf0f1aae17ac901621683c4.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
3888	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
1496	schtasks.exe

Suspicious behavior: EnumeratesProcesses 29 IoCs

pid	Process
5128	5453dac7db805fe4c2ab3b6bf791c6d7156e4452cbf0f1aae17ac901621683c4.exe
5128	5453dac7db805fe4c2ab3b6bf791c6d7156e4452cbf0f1aae17ac901621683c4.exe
5128	5453dac7db805fe4c2ab3b6bf791c6d7156e4452cbf0f1aae17ac901621683c4.exe
5128	5453dac7db805fe4c2ab3b6bf791c6d7156e4452cbf0f1aae17ac901621683c4.exe
5128	5453dac7db805fe4c2ab3b6bf791c6d7156e4452cbf0f1aae17ac901621683c4.exe
5128	5453dac7db805fe4c2ab3b6bf791c6d7156e4452cbf0f1aae17ac901621683c4.exe
5128	5453dac7db805fe4c2ab3b6bf791c6d7156e4452cbf0f1aae17ac901621683c4.exe
5128	5453dac7db805fe4c2ab3b6bf791c6d7156e4452cbf0f1aae17ac901621683c4.exe
5128	5453dac7db805fe4c2ab3b6bf791c6d7156e4452cbf0f1aae17ac901621683c4.exe
5128	5453dac7db805fe4c2ab3b6bf791c6d7156e4452cbf0f1aae17ac901621683c4.exe
5128	5453dac7db805fe4c2ab3b6bf791c6d7156e4452cbf0f1aae17ac901621683c4.exe
5128	5453dac7db805fe4c2ab3b6bf791c6d7156e4452cbf0f1aae17ac901621683c4.exe
5128	5453dac7db805fe4c2ab3b6bf791c6d7156e4452cbf0f1aae17ac901621683c4.exe
5128	5453dac7db805fe4c2ab3b6bf791c6d7156e4452cbf0f1aae17ac901621683c4.exe
5128	5453dac7db805fe4c2ab3b6bf791c6d7156e4452cbf0f1aae17ac901621683c4.exe
5128	5453dac7db805fe4c2ab3b6bf791c6d7156e4452cbf0f1aae17ac901621683c4.exe
5128	5453dac7db805fe4c2ab3b6bf791c6d7156e4452cbf0f1aae17ac901621683c4.exe
5128	5453dac7db805fe4c2ab3b6bf791c6d7156e4452cbf0f1aae17ac901621683c4.exe
5128	5453dac7db805fe4c2ab3b6bf791c6d7156e4452cbf0f1aae17ac901621683c4.exe
5128	5453dac7db805fe4c2ab3b6bf791c6d7156e4452cbf0f1aae17ac901621683c4.exe
5128	5453dac7db805fe4c2ab3b6bf791c6d7156e4452cbf0f1aae17ac901621683c4.exe
5128	5453dac7db805fe4c2ab3b6bf791c6d7156e4452cbf0f1aae17ac901621683c4.exe
5128	5453dac7db805fe4c2ab3b6bf791c6d7156e4452cbf0f1aae17ac901621683c4.exe
5128	5453dac7db805fe4c2ab3b6bf791c6d7156e4452cbf0f1aae17ac901621683c4.exe
5128	5453dac7db805fe4c2ab3b6bf791c6d7156e4452cbf0f1aae17ac901621683c4.exe
5128	5453dac7db805fe4c2ab3b6bf791c6d7156e4452cbf0f1aae17ac901621683c4.exe
5128	5453dac7db805fe4c2ab3b6bf791c6d7156e4452cbf0f1aae17ac901621683c4.exe
5128	5453dac7db805fe4c2ab3b6bf791c6d7156e4452cbf0f1aae17ac901621683c4.exe
5128	5453dac7db805fe4c2ab3b6bf791c6d7156e4452cbf0f1aae17ac901621683c4.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	5128	5453dac7db805fe4c2ab3b6bf791c6d7156e4452cbf0f1aae17ac901621683c4.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 5128 wrote to memory of 5832	5128	5453dac7db805fe4c2ab3b6bf791c6d7156e4452cbf0f1aae17ac901621683c4.exe	88
PID 5128 wrote to memory of 1260	5128	5453dac7db805fe4c2ab3b6bf791c6d7156e4452cbf0f1aae17ac901621683c4.exe	89
PID 5832 wrote to memory of 1496	5832	cmd.exe	92
PID 1260 wrote to memory of 3888	1260	cmd.exe	93

C:\Users\Admin\AppData\Local\Temp\5453dac7db805fe4c2ab3b6bf791c6d7156e4452cbf0f1aae17ac901621683c4.exe
"C:\Users\Admin\AppData\Local\Temp\5453dac7db805fe4c2ab3b6bf791c6d7156e4452cbf0f1aae17ac901621683c4.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:5128
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "ifn1zc" /tr '"C:\Users\Admin\AppData\Roaming\ifn1zc.exe"' & exit
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:5832
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "ifn1zc" /tr '"C:\Users\Admin\AppData\Roaming\ifn1zc.exe"'
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:1496
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp90FB.tmp.bat""
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1260
- - C:\Windows\SysWOW64\timeout.exe
    timeout 3
    3⤵
    - System Location Discovery: System Language Discovery
    - Delays execution with timeout.exe
    PID:3888
- - C:\Users\Admin\AppData\Roaming\ifn1zc.exe
    "C:\Users\Admin\AppData\Roaming\ifn1zc.exe"
    3⤵
    PID:236

C:\Users\Admin\AppData\Roaming\ifn1zc.exe
"C:\Users\Admin\AppData\Roaming\ifn1zc.exe"
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:2444

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

tmp90FB.tmp.bat

Path C:\Users\Admin\AppData\Local\Temp\tmp90FB.tmp.bat
Size 150B
SHA256 e82ce3795809afd42e9ef6e6a9500142b2f972c96465a1cca5650af033fba3ac
MD5 9abdf47cbeb3982a6fa4f7772d7a775d
SHA1 f724c65c78cfff0160629be96eaf846daca51d0e
SHA512 999b4944e3ce8cc505c09102c311da2e7ae4f4a203fba194db94b991aef676c96c89f58751edf529fd969a3dc5c71631a320819667a884874e84012ef66cb96e
TLSH
T110C02B4351C6EB0E2D0D182302FAD8CC91B26C593F84FB00C344C01E12D1458F0D9341
MD5 SHA1 SHA512 TLSH

Submit Download

ifn1zc.exe

Path C:\Users\Admin\AppData\Roaming\ifn1zc.exe
Size 45KB
SHA256 5453dac7db805fe4c2ab3b6bf791c6d7156e4452cbf0f1aae17ac901621683c4
MD5 f7474d62473f9205cacd9eb67ee406dd
SHA1 71226df783f0344db29cda41af0674a9c700d10b
SHA512 b3ca410e25d3a5b0f235c794f6dc416b18ff06b8dd7aec2e1104634999acb4e33652b35bee150b76263455c44f57453387e8167d719ccb77d99eeb516d16474a
SSDEEP 768:EulCJTHESwgWUK3aGmo2q98ZoQTMtPI4mjbLgX3iVr2WPPyDNIEDTBDZsx:EulCJTHl42tL34Kb0XSrXalD1dsx
TLSH
T19B231B0037E8822BE2BE5F78ACF25145867AF6673A03D64D1CC441DB5723FC59A42AED
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/2444-12-0x00000000744A2000-0x00000000744A3000-memory.dmp

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memory/2444-14-0x00000000744A2000-0x00000000744A3000-memory.dmp

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memory/5128-0-0x0000000074C82000-0x0000000074C83000-memory.dmp

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memory/5128-1-0x00000000005B0000-0x00000000005C2000-memory.dmp

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memory/5128-2-0x0000000074C70000-0x000000007542C000-memory.dmp

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memory/5128-3-0x0000000005150000-0x00000000051EC000-memory.dmp

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memory/5128-8-0x0000000074C70000-0x000000007542C000-memory.dmp

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