asyncrat | c1bf0881a6bab03c62ff9597b8ab330b90a32e3a644676df4d4b4032352fbb06

Analysis

max time kernel
150s
max time network
151s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260710-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260710-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
18/07/2026, 16:56

Sharing

Copy URL Twitter E-mail

Report Analysis Logs

General

Target
c1bf0881a6bab03c62ff9597b8ab330b90a32e3a644676df4d4b4032352fbb06.exe
Size 45KB
Sample260718-vf11eabv4y
SHA256 c1bf0881a6bab03c62ff9597b8ab330b90a32e3a644676df4d4b4032352fbb06
MD5 4476fa0e5393f5ee13bc04f9c7576b97
SHA1 d8e246491e98de8744c4569ce514af5e8f09a125
SHA512 7510a3d06e33d99a0222624dea04b5b27cd03d4ff29fd2278fc4aecb505116e18e888599a04389831d04cc68247f117d3f945ec3103a0eccd6d0b3a78f434959
SSDEEP 768:0uPrpT/LGKeWUszuAmo2q9iiD8yfzuOPIZzjbugXpizP3eSAf/XrV9WrF3pBDZ8x:0uPrpT/qY2fiAJ3Z3bRXYj3errm33d8x
TLSH
T1D6233B103BE9812BF2BE4F7898F26145867EF6633603D6491CC451DB5613FC68A42AFE
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

chichgai.one:80
chichgai.one:22
chichgai.one:8080
chichgai.one:8880
chichgai.one:2052
chichgai.one:2082
chichgai.one:2086
chichgai.one:2095
chichgai.one:443
chichgai.one:2053
chichgai.one:2083
chichgai.one:2087
chichgai.one:2096
chichgai.one:8443
www.chichgai.one:80
www.chichgai.one:22
www.chichgai.one:8080
www.chichgai.one:8880
www.chichgai.one:2052
www.chichgai.one:2082
www.chichgai.one:2086
www.chichgai.one:2095
www.chichgai.one:443
www.chichgai.one:2053
www.chichgai.one:2083
www.chichgai.one:2087
www.chichgai.one:2096
www.chichgai.one:8443
ryuk.chichgai.one:80
ryuk.chichgai.one:22
ryuk.chichgai.one:8080
ryuk.chichgai.one:8880
ryuk.chichgai.one:2052
ryuk.chichgai.one:2082
ryuk.chichgai.one:2086
ryuk.chichgai.one:2095
ryuk.chichgai.one:443
ryuk.chichgai.one:2053
ryuk.chichgai.one:2083
ryuk.chichgai.one:2087
ryuk.chichgai.one:2096
ryuk.chichgai.one:8443
malware.chichgai.one:80
malware.chichgai.one:22
malware.chichgai.one:8080
malware.chichgai.one:8880
malware.chichgai.one:2052
malware.chichgai.one:2082
malware.chichgai.one:2086
malware.chichgai.one:2095
malware.chichgai.one:443
malware.chichgai.one:2053
malware.chichgai.one:2083
malware.chichgai.one:2087
malware.chichgai.one:2096
malware.chichgai.one:8443
hack.chichgai.one:80
hack.chichgai.one:22
hack.chichgai.one:8080
hack.chichgai.one:8880
hack.chichgai.one:2052
hack.chichgai.one:2082
hack.chichgai.one:2086
hack.chichgai.one:2095
hack.chichgai.one:443
hack.chichgai.one:2053
hack.chichgai.one:2083
hack.chichgai.one:2087
hack.chichgai.one:2096
hack.chichgai.one:8443

Mutex

pbaAFVNs7JBo

Attributes

delay
0
install
true
install_file
xcasbpq.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/0x000d00000001c5c1-10.dat	family_asyncrat

Executes dropped EXE 2 IoCs

pid	Process
1248	xcasbpq.exe
5084	xcasbpq.exe

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
3532	cmd.exe
4288	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	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	timeout.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	xcasbpq.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	xcasbpq.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	c1bf0881a6bab03c62ff9597b8ab330b90a32e3a644676df4d4b4032352fbb06.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
2768	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
6040	schtasks.exe

Suspicious behavior: EnumeratesProcesses 31 IoCs

pid	Process
2040	c1bf0881a6bab03c62ff9597b8ab330b90a32e3a644676df4d4b4032352fbb06.exe
2040	c1bf0881a6bab03c62ff9597b8ab330b90a32e3a644676df4d4b4032352fbb06.exe
2040	c1bf0881a6bab03c62ff9597b8ab330b90a32e3a644676df4d4b4032352fbb06.exe
2040	c1bf0881a6bab03c62ff9597b8ab330b90a32e3a644676df4d4b4032352fbb06.exe
2040	c1bf0881a6bab03c62ff9597b8ab330b90a32e3a644676df4d4b4032352fbb06.exe
2040	c1bf0881a6bab03c62ff9597b8ab330b90a32e3a644676df4d4b4032352fbb06.exe
2040	c1bf0881a6bab03c62ff9597b8ab330b90a32e3a644676df4d4b4032352fbb06.exe
2040	c1bf0881a6bab03c62ff9597b8ab330b90a32e3a644676df4d4b4032352fbb06.exe
2040	c1bf0881a6bab03c62ff9597b8ab330b90a32e3a644676df4d4b4032352fbb06.exe
2040	c1bf0881a6bab03c62ff9597b8ab330b90a32e3a644676df4d4b4032352fbb06.exe
2040	c1bf0881a6bab03c62ff9597b8ab330b90a32e3a644676df4d4b4032352fbb06.exe
2040	c1bf0881a6bab03c62ff9597b8ab330b90a32e3a644676df4d4b4032352fbb06.exe
2040	c1bf0881a6bab03c62ff9597b8ab330b90a32e3a644676df4d4b4032352fbb06.exe
2040	c1bf0881a6bab03c62ff9597b8ab330b90a32e3a644676df4d4b4032352fbb06.exe
2040	c1bf0881a6bab03c62ff9597b8ab330b90a32e3a644676df4d4b4032352fbb06.exe
2040	c1bf0881a6bab03c62ff9597b8ab330b90a32e3a644676df4d4b4032352fbb06.exe
2040	c1bf0881a6bab03c62ff9597b8ab330b90a32e3a644676df4d4b4032352fbb06.exe
2040	c1bf0881a6bab03c62ff9597b8ab330b90a32e3a644676df4d4b4032352fbb06.exe
2040	c1bf0881a6bab03c62ff9597b8ab330b90a32e3a644676df4d4b4032352fbb06.exe
2040	c1bf0881a6bab03c62ff9597b8ab330b90a32e3a644676df4d4b4032352fbb06.exe
2040	c1bf0881a6bab03c62ff9597b8ab330b90a32e3a644676df4d4b4032352fbb06.exe
2040	c1bf0881a6bab03c62ff9597b8ab330b90a32e3a644676df4d4b4032352fbb06.exe
2040	c1bf0881a6bab03c62ff9597b8ab330b90a32e3a644676df4d4b4032352fbb06.exe
2040	c1bf0881a6bab03c62ff9597b8ab330b90a32e3a644676df4d4b4032352fbb06.exe
2040	c1bf0881a6bab03c62ff9597b8ab330b90a32e3a644676df4d4b4032352fbb06.exe
2040	c1bf0881a6bab03c62ff9597b8ab330b90a32e3a644676df4d4b4032352fbb06.exe
2040	c1bf0881a6bab03c62ff9597b8ab330b90a32e3a644676df4d4b4032352fbb06.exe
2040	c1bf0881a6bab03c62ff9597b8ab330b90a32e3a644676df4d4b4032352fbb06.exe
2040	c1bf0881a6bab03c62ff9597b8ab330b90a32e3a644676df4d4b4032352fbb06.exe
2040	c1bf0881a6bab03c62ff9597b8ab330b90a32e3a644676df4d4b4032352fbb06.exe
2040	c1bf0881a6bab03c62ff9597b8ab330b90a32e3a644676df4d4b4032352fbb06.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2040	c1bf0881a6bab03c62ff9597b8ab330b90a32e3a644676df4d4b4032352fbb06.exe
Token: SeDebugPrivilege	1248	xcasbpq.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 2040 wrote to memory of 3532	2040	c1bf0881a6bab03c62ff9597b8ab330b90a32e3a644676df4d4b4032352fbb06.exe	88
PID 2040 wrote to memory of 4288	2040	c1bf0881a6bab03c62ff9597b8ab330b90a32e3a644676df4d4b4032352fbb06.exe	89
PID 3532 wrote to memory of 6040	3532	cmd.exe	92
PID 4288 wrote to memory of 2768	4288	cmd.exe	93
PID 4288 wrote to memory of 5084	4288	cmd.exe	96

C:\Users\Admin\AppData\Local\Temp\c1bf0881a6bab03c62ff9597b8ab330b90a32e3a644676df4d4b4032352fbb06.exe
"C:\Users\Admin\AppData\Local\Temp\c1bf0881a6bab03c62ff9597b8ab330b90a32e3a644676df4d4b4032352fbb06.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2040
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "xcasbpq" /tr '"C:\Users\Admin\AppData\Roaming\xcasbpq.exe"' & exit
  2⤵
  - Executes a command shell one-liner
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3532
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "xcasbpq" /tr '"C:\Users\Admin\AppData\Roaming\xcasbpq.exe"'
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:6040
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp9D7E.tmp.bat""
  2⤵
  - Executes a command shell one-liner
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4288
- - C:\Windows\SysWOW64\timeout.exe
    timeout 3
    3⤵
    - System Location Discovery: System Language Discovery
    - Delays execution with timeout.exe
    PID:2768
- - C:\Users\Admin\AppData\Roaming\xcasbpq.exe
    "C:\Users\Admin\AppData\Roaming\xcasbpq.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:5084

C:\Users\Admin\AppData\Roaming\xcasbpq.exe
"C:\Users\Admin\AppData\Roaming\xcasbpq.exe"
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:1248

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

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

tmp9D7E.tmp.bat

Path C:\Users\Admin\AppData\Local\Temp\tmp9D7E.tmp.bat
Size 151B
SHA256 ec1a9de1dc016812697933f0180b3d64a36eef457fa357662d1c05e30e865503
MD5 162facca205dc9ce7c34efdd77c53a0d
SHA1 81462e7b0c8eb9da8e09dfc725cb0b8818233b20
SHA512 d5937fae64bd57de2b9fcb907ac000d2357d9f6f86e580cddc3cfc02ab2915ea299df857c5858ed5cf760eb9e941851c4b25dcaad9fc36aa688580c67255fcad
TLSH
T1EEC02B8372CEEA0F3805641303FAD88CA1B26C193FC0BB00C344801D22C086DF4DA391
MD5 SHA1 SHA512 TLSH

Submit Download

xcasbpq.exe

Path C:\Users\Admin\AppData\Roaming\xcasbpq.exe
Size 45KB
SHA256 c1bf0881a6bab03c62ff9597b8ab330b90a32e3a644676df4d4b4032352fbb06
MD5 4476fa0e5393f5ee13bc04f9c7576b97
SHA1 d8e246491e98de8744c4569ce514af5e8f09a125
SHA512 7510a3d06e33d99a0222624dea04b5b27cd03d4ff29fd2278fc4aecb505116e18e888599a04389831d04cc68247f117d3f945ec3103a0eccd6d0b3a78f434959
SSDEEP 768:0uPrpT/LGKeWUszuAmo2q9iiD8yfzuOPIZzjbugXpizP3eSAf/XrV9WrF3pBDZ8x:0uPrpT/qY2fiAJ3Z3bRXYj3errm33d8x
TLSH
T1D6233B103BE9812BF2BE4F7898F26145867EF6633603D6491CC451DB5613FC68A42AFE
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/1248-12-0x0000000074CC0000-0x000000007547C000-memory.dmp

Download

memory/1248-14-0x0000000074CC0000-0x000000007547C000-memory.dmp

Download

memory/2040-0-0x0000000074E42000-0x0000000074E43000-memory.dmp

Download

memory/2040-1-0x0000000000BD0000-0x0000000000BE2000-memory.dmp

Download

memory/2040-2-0x0000000074E30000-0x00000000755EC000-memory.dmp

Download

memory/2040-3-0x0000000005590000-0x000000000562C000-memory.dmp

Download

memory/2040-8-0x0000000074E30000-0x00000000755EC000-memory.dmp

Download