asyncrat | fcb4d0bfbf0904cc2049a35aec79df14d13e48f737e1bd7778aa94e572536ff4

Analysis

max time kernel
148s
max time network
152s
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, 07:04

Sharing

Copy URL Twitter E-mail

Report Analysis Logs

General

Target
fcb4d0bfbf0904cc2049a35aec79df14d13e48f737e1bd7778aa94e572536ff4.exe
Size 45KB
Sample260804-hwbdgaeh66
SHA256 fcb4d0bfbf0904cc2049a35aec79df14d13e48f737e1bd7778aa94e572536ff4
MD5 9fe8e3f1881c521cfb9c1f13647eae70
SHA1 a335920d89145becb790bfe19a278feadc60eca3
SHA512 182bedc1d947f337681030142fd97f122273c36917af35ba077a90092f93f2f14d97d685c864c287808178441dff0add517e9ae076f2893cfbef3664855fb00c
SSDEEP 768:EufspTfzcR6uWUcb+wmo2q9oORw4iS36NjPIgzjbWgX3sSaxN8NGb+camORVBDZu:EufspTf2g2BORDf6Kg3bJXczANwq7dsx
TLSH
T1ED2329103BE8812BF2BE4F78A9F26145867AF6633603D5492CC451DB5713FC68642AFE
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

phimsexvnn.com:80
phimsexvnn.com:22
phimsexvnn.com:8080
phimsexvnn.com:8880
phimsexvnn.com:2052
phimsexvnn.com:2082
phimsexvnn.com:2086
phimsexvnn.com:2095
phimsexvnn.com:443
phimsexvnn.com:2053
phimsexvnn.com:2083
phimsexvnn.com:2087
phimsexvnn.com:2096
phimsexvnn.com:8443
www.phimsexvnn.com:80
www.phimsexvnn.com:22
www.phimsexvnn.com:8080
www.phimsexvnn.com:8880
www.phimsexvnn.com:2052
www.phimsexvnn.com:2082
www.phimsexvnn.com:2086
www.phimsexvnn.com:2095
www.phimsexvnn.com:443
www.phimsexvnn.com:2053
www.phimsexvnn.com:2083
www.phimsexvnn.com:2087
www.phimsexvnn.com:2096
www.phimsexvnn.com:8443
malware.phimsexvnn.com:80
malware.phimsexvnn.com:22
malware.phimsexvnn.com:8080
malware.phimsexvnn.com:8880
malware.phimsexvnn.com:2052
malware.phimsexvnn.com:2082
malware.phimsexvnn.com:2086
malware.phimsexvnn.com:2095
malware.phimsexvnn.com:443
malware.phimsexvnn.com:2053
malware.phimsexvnn.com:2083
malware.phimsexvnn.com:2087
malware.phimsexvnn.com:2096
malware.phimsexvnn.com:8443
industroyer.phimsexvnn.com:80
industroyer.phimsexvnn.com:22
industroyer.phimsexvnn.com:8080
industroyer.phimsexvnn.com:8880
industroyer.phimsexvnn.com:2052
industroyer.phimsexvnn.com:2082
industroyer.phimsexvnn.com:2086
industroyer.phimsexvnn.com:2095
industroyer.phimsexvnn.com:443
industroyer.phimsexvnn.com:2053
industroyer.phimsexvnn.com:2083
industroyer.phimsexvnn.com:2087
industroyer.phimsexvnn.com:2096
industroyer.phimsexvnn.com:8443
cl0p.phimsexvnn.com:80
cl0p.phimsexvnn.com:22
cl0p.phimsexvnn.com:8080
cl0p.phimsexvnn.com:8880
cl0p.phimsexvnn.com:2052
cl0p.phimsexvnn.com:2082
cl0p.phimsexvnn.com:2086
cl0p.phimsexvnn.com:2095
cl0p.phimsexvnn.com:443
cl0p.phimsexvnn.com:2053
cl0p.phimsexvnn.com:2083
cl0p.phimsexvnn.com:2087
cl0p.phimsexvnn.com:2096
cl0p.phimsexvnn.com:8443

Mutex

n9Y9kFDCkTpo

Attributes

delay
0
install
true
install_file
n1t416t.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 2 IoCs

pid	Process
5468	n1t416t.exe
6008	n1t416t.exe

Outbound SSH connection to public host 2 TTPs 5 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	4	104.21.5.48:22
SSH destination	7	172.67.132.249:22
SSH destination	14	104.21.5.48:22
SSH destination	16	172.67.132.249:22
SSH destination	18	104.21.5.48:22

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
1000	cmd.exe
2848	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	n1t416t.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	n1t416t.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	fcb4d0bfbf0904cc2049a35aec79df14d13e48f737e1bd7778aa94e572536ff4.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

Delays execution with timeout.exe 1 IoCs

defense_evasion

pid	Process
5004	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
2496	schtasks.exe

Suspicious behavior: EnumeratesProcesses 31 IoCs

pid	Process
6076	fcb4d0bfbf0904cc2049a35aec79df14d13e48f737e1bd7778aa94e572536ff4.exe
6076	fcb4d0bfbf0904cc2049a35aec79df14d13e48f737e1bd7778aa94e572536ff4.exe
6076	fcb4d0bfbf0904cc2049a35aec79df14d13e48f737e1bd7778aa94e572536ff4.exe
6076	fcb4d0bfbf0904cc2049a35aec79df14d13e48f737e1bd7778aa94e572536ff4.exe
6076	fcb4d0bfbf0904cc2049a35aec79df14d13e48f737e1bd7778aa94e572536ff4.exe
6076	fcb4d0bfbf0904cc2049a35aec79df14d13e48f737e1bd7778aa94e572536ff4.exe
6076	fcb4d0bfbf0904cc2049a35aec79df14d13e48f737e1bd7778aa94e572536ff4.exe
6076	fcb4d0bfbf0904cc2049a35aec79df14d13e48f737e1bd7778aa94e572536ff4.exe
6076	fcb4d0bfbf0904cc2049a35aec79df14d13e48f737e1bd7778aa94e572536ff4.exe
6076	fcb4d0bfbf0904cc2049a35aec79df14d13e48f737e1bd7778aa94e572536ff4.exe
6076	fcb4d0bfbf0904cc2049a35aec79df14d13e48f737e1bd7778aa94e572536ff4.exe
6076	fcb4d0bfbf0904cc2049a35aec79df14d13e48f737e1bd7778aa94e572536ff4.exe
6076	fcb4d0bfbf0904cc2049a35aec79df14d13e48f737e1bd7778aa94e572536ff4.exe
6076	fcb4d0bfbf0904cc2049a35aec79df14d13e48f737e1bd7778aa94e572536ff4.exe
6076	fcb4d0bfbf0904cc2049a35aec79df14d13e48f737e1bd7778aa94e572536ff4.exe
6076	fcb4d0bfbf0904cc2049a35aec79df14d13e48f737e1bd7778aa94e572536ff4.exe
6076	fcb4d0bfbf0904cc2049a35aec79df14d13e48f737e1bd7778aa94e572536ff4.exe
6076	fcb4d0bfbf0904cc2049a35aec79df14d13e48f737e1bd7778aa94e572536ff4.exe
6076	fcb4d0bfbf0904cc2049a35aec79df14d13e48f737e1bd7778aa94e572536ff4.exe
6076	fcb4d0bfbf0904cc2049a35aec79df14d13e48f737e1bd7778aa94e572536ff4.exe
6076	fcb4d0bfbf0904cc2049a35aec79df14d13e48f737e1bd7778aa94e572536ff4.exe
6076	fcb4d0bfbf0904cc2049a35aec79df14d13e48f737e1bd7778aa94e572536ff4.exe
6076	fcb4d0bfbf0904cc2049a35aec79df14d13e48f737e1bd7778aa94e572536ff4.exe
6076	fcb4d0bfbf0904cc2049a35aec79df14d13e48f737e1bd7778aa94e572536ff4.exe
6076	fcb4d0bfbf0904cc2049a35aec79df14d13e48f737e1bd7778aa94e572536ff4.exe
6076	fcb4d0bfbf0904cc2049a35aec79df14d13e48f737e1bd7778aa94e572536ff4.exe
6076	fcb4d0bfbf0904cc2049a35aec79df14d13e48f737e1bd7778aa94e572536ff4.exe
6076	fcb4d0bfbf0904cc2049a35aec79df14d13e48f737e1bd7778aa94e572536ff4.exe
6076	fcb4d0bfbf0904cc2049a35aec79df14d13e48f737e1bd7778aa94e572536ff4.exe
6076	fcb4d0bfbf0904cc2049a35aec79df14d13e48f737e1bd7778aa94e572536ff4.exe
6076	fcb4d0bfbf0904cc2049a35aec79df14d13e48f737e1bd7778aa94e572536ff4.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	6076	fcb4d0bfbf0904cc2049a35aec79df14d13e48f737e1bd7778aa94e572536ff4.exe
Token: SeDebugPrivilege	5468	n1t416t.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 6076 wrote to memory of 2848	6076	fcb4d0bfbf0904cc2049a35aec79df14d13e48f737e1bd7778aa94e572536ff4.exe	90
PID 6076 wrote to memory of 1000	6076	fcb4d0bfbf0904cc2049a35aec79df14d13e48f737e1bd7778aa94e572536ff4.exe	91
PID 2848 wrote to memory of 2496	2848	cmd.exe	94
PID 1000 wrote to memory of 5004	1000	cmd.exe	95
PID 1000 wrote to memory of 6008	1000	cmd.exe	98

C:\Users\Admin\AppData\Local\Temp\fcb4d0bfbf0904cc2049a35aec79df14d13e48f737e1bd7778aa94e572536ff4.exe
"C:\Users\Admin\AppData\Local\Temp\fcb4d0bfbf0904cc2049a35aec79df14d13e48f737e1bd7778aa94e572536ff4.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:6076
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "n1t416t" /tr '"C:\Users\Admin\AppData\Roaming\n1t416t.exe"' & exit
  2⤵
  - Executes a command shell one-liner
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2848
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "n1t416t" /tr '"C:\Users\Admin\AppData\Roaming\n1t416t.exe"'
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:2496
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp7E4E.tmp.bat""
  2⤵
  - Executes a command shell one-liner
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1000
- - C:\Windows\SysWOW64\timeout.exe
    timeout 3
    3⤵
    - System Location Discovery: System Language Discovery
    - Delays execution with timeout.exe
    PID:5004
- - C:\Users\Admin\AppData\Roaming\n1t416t.exe
    "C:\Users\Admin\AppData\Roaming\n1t416t.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:6008

C:\Users\Admin\AppData\Roaming\n1t416t.exe
"C:\Users\Admin\AppData\Roaming\n1t416t.exe"
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:5468

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

Replay Monitor

Loading Replay Monitor...

Downloads

tmp7E4E.tmp.bat

Path C:\Users\Admin\AppData\Local\Temp\tmp7E4E.tmp.bat
Size 151B
SHA256 d678e8cd584a1b34a59a310f995c2f1cee9e49a462e6ee95f9f21173e6848e19
MD5 2d7496871e5ac680a8c31795a313f4b3
SHA1 d881f7033af9bc0b3bb7d74b28832fbcaa212547
SHA512 2f0f8cee6cdbed27bf98f1099975b2ddb9eb605d82d696ecbf22e0103cdc20c5c4661c7493a0d63530e9bcc18149b6175957f84f1b00034ee8720fd39445f861
TLSH
T186C08C4262C5AA0E6905142302BA989CA1A2A8293E84BB4083044019228044DE899281
MD5 SHA1 SHA512 TLSH

Submit Download

n1t416t.exe

Path C:\Users\Admin\AppData\Roaming\n1t416t.exe
Size 45KB
SHA256 fcb4d0bfbf0904cc2049a35aec79df14d13e48f737e1bd7778aa94e572536ff4
MD5 9fe8e3f1881c521cfb9c1f13647eae70
SHA1 a335920d89145becb790bfe19a278feadc60eca3
SHA512 182bedc1d947f337681030142fd97f122273c36917af35ba077a90092f93f2f14d97d685c864c287808178441dff0add517e9ae076f2893cfbef3664855fb00c
SSDEEP 768:EufspTfzcR6uWUcb+wmo2q9oORw4iS36NjPIgzjbWgX3sSaxN8NGb+camORVBDZu:EufspTf2g2BORDf6Kg3bJXczANwq7dsx
TLSH
T1ED2329103BE8812BF2BE4F78A9F26145867AF6633603D5492CC451DB5713FC68642AFE
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/5468-12-0x0000000074880000-0x000000007503C000-memory.dmp

Download

memory/5468-14-0x0000000074880000-0x000000007503C000-memory.dmp

Download

memory/6076-0-0x0000000074A32000-0x0000000074A33000-memory.dmp

Download

memory/6076-1-0x0000000000130000-0x0000000000142000-memory.dmp

Download

memory/6076-2-0x0000000074A20000-0x00000000751DC000-memory.dmp

Download

memory/6076-3-0x0000000004AF0000-0x0000000004B8C000-memory.dmp

Download

memory/6076-8-0x0000000074A20000-0x00000000751DC000-memory.dmp

Download