asyncrat | 8984004d5e340774e8e22b3945214f3d3d4645d71f88a10ffac19ba1f6c7bc28

General

Target

c875bcf1a868fbd4d782072878787785.exe
Size

45KB
MD5

c875bcf1a868fbd4d782072878787785
SHA1

71a396dcb26d19677f17c5b0f415918928081184
SHA256

8984004d5e340774e8e22b3945214f3d3d4645d71f88a10ffac19ba1f6c7bc28
SHA512

3732bbaa93a773054d2f63e947a450fe70018cf57bddc68725408959f8bf7ce0f0769671a2fb2884324a5419b9e1da3a88bf25dd5dc23c1db41de7a5340cae82
SSDEEP

768:JuK49TH4EjZWUR+ejmo2qrDKjGKG6PIyzjbFgX3i/Ei4s2/IBDZ7d:JuK49THf52OKYDy3bCXS/Eih2/ud7d

Score

10^/10

asyncrat default rat

Malware Config

Extracted

Family

asyncrat

Version

0.5.7B

Botnet

Default

C2

eu-central-7075.packetriot.net:1604

eu-central-7075.packetriot.net:22993

Mutex

AsyncMutex_6SI8OkPnk

Attributes

delay
3
install
true
install_file
scvhost.exe
install_folder
%AppData%

aes.plain

Signatures

AsyncRat
AsyncRAT is designed to remotely monitor and control other computers.
rat asyncrat

Async RAT payload 5 IoCs

rat

Processes:

resource	yara_rule
behavioral1/memory/864-54-0x0000000001360000-0x0000000001372000-memory.dmp	asyncrat
C:\Users\Admin\AppData\Roaming\scvhost.exe	asyncrat
\Users\Admin\AppData\Roaming\scvhost.exe	asyncrat
C:\Users\Admin\AppData\Roaming\scvhost.exe	asyncrat
behavioral1/memory/1612-65-0x0000000000340000-0x0000000000352000-memory.dmp	asyncrat

Executes dropped EXE 1 IoCs

Processes:

scvhost.exe

pid process

1612 scvhost.exe
Loads dropped DLL 1 IoCs

Processes:

cmd.exe

pid process

2024 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

1104 schtasks.exe
Delays execution with timeout.exe 1 IoCs
evasion

Processes:

timeout.exe

pid process

1716 timeout.exe
Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

c875bcf1a868fbd4d782072878787785.exe

pid process

864 c875bcf1a868fbd4d782072878787785.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

c875bcf1a868fbd4d782072878787785.exescvhost.exe

description pid process

Token: SeDebugPrivilege 864 c875bcf1a868fbd4d782072878787785.exe
Token: SeDebugPrivilege 1612 scvhost.exe

pid	process
1612	scvhost.exe

pid	process
2024	cmd.exe

pid	process
1104	schtasks.exe

pid	process
1716	timeout.exe

pid	process
864	c875bcf1a868fbd4d782072878787785.exe

description	pid	process
Token: SeDebugPrivilege	864	c875bcf1a868fbd4d782072878787785.exe
Token: SeDebugPrivilege	1612	scvhost.exe

Suspicious use of WriteProcessMemory 20 IoCs

Processes:

c875bcf1a868fbd4d782072878787785.execmd.execmd.exe

description	pid	process	target process
PID 864 wrote to memory of 2028	864	c875bcf1a868fbd4d782072878787785.exe	cmd.exe
PID 864 wrote to memory of 2028	864	c875bcf1a868fbd4d782072878787785.exe	cmd.exe
PID 864 wrote to memory of 2028	864	c875bcf1a868fbd4d782072878787785.exe	cmd.exe
PID 864 wrote to memory of 2028	864	c875bcf1a868fbd4d782072878787785.exe	cmd.exe
PID 864 wrote to memory of 2024	864	c875bcf1a868fbd4d782072878787785.exe	cmd.exe
PID 864 wrote to memory of 2024	864	c875bcf1a868fbd4d782072878787785.exe	cmd.exe
PID 864 wrote to memory of 2024	864	c875bcf1a868fbd4d782072878787785.exe	cmd.exe
PID 864 wrote to memory of 2024	864	c875bcf1a868fbd4d782072878787785.exe	cmd.exe
PID 2028 wrote to memory of 1104	2028	cmd.exe	schtasks.exe
PID 2028 wrote to memory of 1104	2028	cmd.exe	schtasks.exe
PID 2028 wrote to memory of 1104	2028	cmd.exe	schtasks.exe
PID 2028 wrote to memory of 1104	2028	cmd.exe	schtasks.exe
PID 2024 wrote to memory of 1716	2024	cmd.exe	timeout.exe
PID 2024 wrote to memory of 1716	2024	cmd.exe	timeout.exe
PID 2024 wrote to memory of 1716	2024	cmd.exe	timeout.exe
PID 2024 wrote to memory of 1716	2024	cmd.exe	timeout.exe
PID 2024 wrote to memory of 1612	2024	cmd.exe	scvhost.exe
PID 2024 wrote to memory of 1612	2024	cmd.exe	scvhost.exe
PID 2024 wrote to memory of 1612	2024	cmd.exe	scvhost.exe
PID 2024 wrote to memory of 1612	2024	cmd.exe	scvhost.exe

C:\Users\Admin\AppData\Local\Temp\c875bcf1a868fbd4d782072878787785.exe
"C:\Users\Admin\AppData\Local\Temp\c875bcf1a868fbd4d782072878787785.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:864

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "scvhost" /tr '"C:\Users\Admin\AppData\Roaming\scvhost.exe"' & exit
2⤵
- Suspicious use of WriteProcessMemory
PID:2028

C:\Windows\SysWOW64\schtasks.exe
schtasks /create /f /sc onlogon /rl highest /tn "scvhost" /tr '"C:\Users\Admin\AppData\Roaming\scvhost.exe"'
3⤵
- Creates scheduled task(s)
PID:1104

C:\Windows\SysWOW64\cmd.exe
cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmp15A4.tmp.bat""
2⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2024

C:\Windows\SysWOW64\timeout.exe
timeout 3
3⤵
- Delays execution with timeout.exe
PID:1716

C:\Users\Admin\AppData\Roaming\scvhost.exe
"C:\Users\Admin\AppData\Roaming\scvhost.exe"
3⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:1612

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\tmp15A4.tmp.bat
Filesize
151B

MD5
c9ac2dd685e8ab9182ea1a6085c2b8de

SHA1
b53ff86c1a786a08a5ee1dea5ed61eaeb5650f18

SHA256
0849d929a2172088af375ac758ef119a1ac5a5524f7297a9c41959e764884ca3

SHA512
fc019183a5e3dd1695c50d522afb1caee1c57514f4bb64e8d8a97e47a9646641bf9e1fb88b46dcbfd4922a464e7dfc8a4db4b458753d276351b8295ce338701a

Download Submit
C:\Users\Admin\AppData\Roaming\scvhost.exe
Filesize
45KB

MD5
c875bcf1a868fbd4d782072878787785

SHA1
71a396dcb26d19677f17c5b0f415918928081184

SHA256
8984004d5e340774e8e22b3945214f3d3d4645d71f88a10ffac19ba1f6c7bc28

SHA512
3732bbaa93a773054d2f63e947a450fe70018cf57bddc68725408959f8bf7ce0f0769671a2fb2884324a5419b9e1da3a88bf25dd5dc23c1db41de7a5340cae82

Download Submit
C:\Users\Admin\AppData\Roaming\scvhost.exe
Filesize
45KB

MD5
c875bcf1a868fbd4d782072878787785

SHA1
71a396dcb26d19677f17c5b0f415918928081184

SHA256
8984004d5e340774e8e22b3945214f3d3d4645d71f88a10ffac19ba1f6c7bc28

SHA512
3732bbaa93a773054d2f63e947a450fe70018cf57bddc68725408959f8bf7ce0f0769671a2fb2884324a5419b9e1da3a88bf25dd5dc23c1db41de7a5340cae82

Download Submit
\Users\Admin\AppData\Roaming\scvhost.exe
Filesize
45KB

MD5
c875bcf1a868fbd4d782072878787785

SHA1
71a396dcb26d19677f17c5b0f415918928081184

SHA256
8984004d5e340774e8e22b3945214f3d3d4645d71f88a10ffac19ba1f6c7bc28

SHA512
3732bbaa93a773054d2f63e947a450fe70018cf57bddc68725408959f8bf7ce0f0769671a2fb2884324a5419b9e1da3a88bf25dd5dc23c1db41de7a5340cae82

Download Submit
memory/864-54-0x0000000001360000-0x0000000001372000-memory.dmp

Filesize
72KB

Download
memory/864-55-0x0000000076831000-0x0000000076833000-memory.dmp

Filesize
8KB

Download
memory/1104-59-0x0000000000000000-mapping.dmp

Download
memory/1612-63-0x0000000000000000-mapping.dmp

Download
memory/1612-65-0x0000000000340000-0x0000000000352000-memory.dmp

Filesize
72KB

Download
memory/1716-60-0x0000000000000000-mapping.dmp

Download
memory/2024-57-0x0000000000000000-mapping.dmp

Download
memory/2028-56-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads