asyncrat | df4d60e5d7a9c383b436485940669e2c5a392c1b4d1a067d4e75221329896b6c

General

Target

2D9F91AC0FE77150A2BC25302E4EA629.exe
Size

45KB
MD5

2d9f91ac0fe77150a2bc25302e4ea629
SHA1

7fb56eb3ee9be33b13b80df969cdf0aaba59a573
SHA256

df4d60e5d7a9c383b436485940669e2c5a392c1b4d1a067d4e75221329896b6c
SHA512

8582989ded603f0a56d6cd7ceea410a4d4f2f17d7b81d3a9c914941fd112fc9b966fc718156699c47afb87726e14c050fd3c10c2efdc376772c7a3e5bc87ba37

Score

10^/10

asyncrat rat suricata

Malware Config

Extracted

Family

asyncrat

Version

0.5.7B

C2

77.204.204.154:6606

Mutex

AsyncMutex_6SI8OkPnk

Attributes

aes_key
3JEv3splanEIrip0D2y4wDa4Uxi85seG
anti_detection
false
autorun
true
bdos
false
delay
Default
host
77.204.204.154
hwid
3
install_file
install_folder
%AppData%
mutex
AsyncMutex_6SI8OkPnk
pastebin_config
null
port
6606
version
0.5.7B

aes.plain

Signatures

AsyncRat
AsyncRAT is designed to remotely monitor and control other computers.
rat asyncrat
suricata: ET MALWARE Observed Malicious SSL Cert (AsyncRAT Server)
suricata

Async RAT payload 3 IoCs

rat

Processes:

resource	yara_rule
C:\Users\Admin\AppData\Roaming\svsystem.exe	asyncrat
\Users\Admin\AppData\Roaming\svsystem.exe	asyncrat
C:\Users\Admin\AppData\Roaming\svsystem.exe	asyncrat

Executes dropped EXE 1 IoCs

Processes:

svsystem.exe

pid process

888 svsystem.exe
Loads dropped DLL 1 IoCs

Processes:

cmd.exe

pid process

1648 cmd.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task
T1053

Processes:

schtasks.exe

pid process

668 schtasks.exe
Delays execution with timeout.exe 1 IoCs
evasion

Processes:

timeout.exe

pid process

520 timeout.exe
Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

2D9F91AC0FE77150A2BC25302E4EA629.exe

pid process

1140 2D9F91AC0FE77150A2BC25302E4EA629.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

2D9F91AC0FE77150A2BC25302E4EA629.exesvsystem.exe

description pid process

Token: SeDebugPrivilege 1140 2D9F91AC0FE77150A2BC25302E4EA629.exe
Token: SeDebugPrivilege 888 svsystem.exe

pid	process
888	svsystem.exe

pid	process
1648	cmd.exe

pid	process
668	schtasks.exe

pid	process
520	timeout.exe

pid	process
1140	2D9F91AC0FE77150A2BC25302E4EA629.exe

description	pid	process
Token: SeDebugPrivilege	1140	2D9F91AC0FE77150A2BC25302E4EA629.exe
Token: SeDebugPrivilege	888	svsystem.exe

Suspicious use of WriteProcessMemory 20 IoCs

Processes:

2D9F91AC0FE77150A2BC25302E4EA629.execmd.execmd.exe

description	pid	process	target process
PID 1140 wrote to memory of 1680	1140	2D9F91AC0FE77150A2BC25302E4EA629.exe	cmd.exe
PID 1140 wrote to memory of 1680	1140	2D9F91AC0FE77150A2BC25302E4EA629.exe	cmd.exe
PID 1140 wrote to memory of 1680	1140	2D9F91AC0FE77150A2BC25302E4EA629.exe	cmd.exe
PID 1140 wrote to memory of 1680	1140	2D9F91AC0FE77150A2BC25302E4EA629.exe	cmd.exe
PID 1140 wrote to memory of 1648	1140	2D9F91AC0FE77150A2BC25302E4EA629.exe	cmd.exe
PID 1140 wrote to memory of 1648	1140	2D9F91AC0FE77150A2BC25302E4EA629.exe	cmd.exe
PID 1140 wrote to memory of 1648	1140	2D9F91AC0FE77150A2BC25302E4EA629.exe	cmd.exe
PID 1140 wrote to memory of 1648	1140	2D9F91AC0FE77150A2BC25302E4EA629.exe	cmd.exe
PID 1680 wrote to memory of 668	1680	cmd.exe	schtasks.exe
PID 1680 wrote to memory of 668	1680	cmd.exe	schtasks.exe
PID 1680 wrote to memory of 668	1680	cmd.exe	schtasks.exe
PID 1680 wrote to memory of 668	1680	cmd.exe	schtasks.exe
PID 1648 wrote to memory of 520	1648	cmd.exe	timeout.exe
PID 1648 wrote to memory of 520	1648	cmd.exe	timeout.exe
PID 1648 wrote to memory of 520	1648	cmd.exe	timeout.exe
PID 1648 wrote to memory of 520	1648	cmd.exe	timeout.exe
PID 1648 wrote to memory of 888	1648	cmd.exe	svsystem.exe
PID 1648 wrote to memory of 888	1648	cmd.exe	svsystem.exe
PID 1648 wrote to memory of 888	1648	cmd.exe	svsystem.exe
PID 1648 wrote to memory of 888	1648	cmd.exe	svsystem.exe

C:\Users\Admin\AppData\Local\Temp\2D9F91AC0FE77150A2BC25302E4EA629.exe
"C:\Users\Admin\AppData\Local\Temp\2D9F91AC0FE77150A2BC25302E4EA629.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1140

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "svsystem" /tr '"C:\Users\Admin\AppData\Roaming\svsystem.exe"' & exit
2⤵
- Suspicious use of WriteProcessMemory
PID:1680

C:\Windows\SysWOW64\schtasks.exe
schtasks /create /f /sc onlogon /rl highest /tn "svsystem" /tr '"C:\Users\Admin\AppData\Roaming\svsystem.exe"'
3⤵
- Creates scheduled task(s)
PID:668

C:\Windows\SysWOW64\cmd.exe
cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmpCB5A.tmp.bat""
2⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1648

C:\Windows\SysWOW64\timeout.exe
timeout 3
3⤵
- Delays execution with timeout.exe
PID:520

C:\Users\Admin\AppData\Roaming\svsystem.exe
"C:\Users\Admin\AppData\Roaming\svsystem.exe"
3⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:888

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmpCB5A.tmp.bat
MD5
886af9e4fe5986973c0405f535a1792b

SHA1
d6dbbc496b77e4b75d5818f489c6b031c2f5b13f

SHA256
26e91236daa2974f674fc2b5bd0da0d203b34ff8eeec09b12b88906b0ec97467

SHA512
76c46e1b23bffa33a31ac50fc0ac14d6419c3d20b6d84c7527ad50926c0702c2dce63c42ea46080f2488b44266616f2033508af299af93eebfd68e62c701eed1

Download Submit
C:\Users\Admin\AppData\Roaming\svsystem.exe
MD5
2d9f91ac0fe77150a2bc25302e4ea629

SHA1
7fb56eb3ee9be33b13b80df969cdf0aaba59a573

SHA256
df4d60e5d7a9c383b436485940669e2c5a392c1b4d1a067d4e75221329896b6c

SHA512
8582989ded603f0a56d6cd7ceea410a4d4f2f17d7b81d3a9c914941fd112fc9b966fc718156699c47afb87726e14c050fd3c10c2efdc376772c7a3e5bc87ba37

Download Submit
C:\Users\Admin\AppData\Roaming\svsystem.exe
MD5
2d9f91ac0fe77150a2bc25302e4ea629

SHA1
7fb56eb3ee9be33b13b80df969cdf0aaba59a573

SHA256
df4d60e5d7a9c383b436485940669e2c5a392c1b4d1a067d4e75221329896b6c

SHA512
8582989ded603f0a56d6cd7ceea410a4d4f2f17d7b81d3a9c914941fd112fc9b966fc718156699c47afb87726e14c050fd3c10c2efdc376772c7a3e5bc87ba37

Download Submit
\Users\Admin\AppData\Roaming\svsystem.exe
MD5
2d9f91ac0fe77150a2bc25302e4ea629

SHA1
7fb56eb3ee9be33b13b80df969cdf0aaba59a573

SHA256
df4d60e5d7a9c383b436485940669e2c5a392c1b4d1a067d4e75221329896b6c

SHA512
8582989ded603f0a56d6cd7ceea410a4d4f2f17d7b81d3a9c914941fd112fc9b966fc718156699c47afb87726e14c050fd3c10c2efdc376772c7a3e5bc87ba37

Download Submit
memory/520-67-0x0000000000000000-mapping.dmp

Download
memory/668-66-0x0000000000000000-mapping.dmp

Download
memory/888-70-0x0000000000000000-mapping.dmp

Download
memory/888-72-0x0000000000AD0000-0x0000000000AD1000-memory.dmp

Filesize
4KB

Download
memory/888-75-0x0000000002140000-0x0000000002141000-memory.dmp

Filesize
4KB

Download
memory/1140-59-0x00000000003F0000-0x00000000003F1000-memory.dmp

Filesize
4KB

Download
memory/1140-62-0x0000000004CA0000-0x0000000004CA1000-memory.dmp

Filesize
4KB

Download
memory/1140-61-0x0000000075D41000-0x0000000075D43000-memory.dmp

Filesize
8KB

Download
memory/1648-64-0x0000000000000000-mapping.dmp

Download
memory/1680-63-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads