asyncrat | b2c929f7f2d37b9d1e16e8a0e42fb85e6d9cb5cef8d83dc9bac31a102865e612

General

Target

5178C3D5FB3E9A5CC0AA428226515BAC.exe
Size

1.4MB
MD5

5178c3d5fb3e9a5cc0aa428226515bac
SHA1

1ed781155e6ea6794657101797bf003381ca6d58
SHA256

b2c929f7f2d37b9d1e16e8a0e42fb85e6d9cb5cef8d83dc9bac31a102865e612
SHA512

f509d79c2f2a84605b607c13ad396c468fe15a459dac87629c8700e34d4aff6c94974d734234a5144e6dfc9d70c0b44d24ba77359654e0cd00e1749dc8b18d37
SSDEEP

24576:Ck+0wECvvv+p2zjNgK6dBiEcGwudooFkPhaFN0ACPyoI8IUGiKHT27znAzVbMg1G:JOWp2pkdooUEfCPkOGilzABQe

Score

10^/10

asyncrat default rat

Malware Config

Extracted

Family

asyncrat

Version

0.5.6D

Botnet

Default

C2

seznam.zapto.org:6606

seznam.zapto.org:7707

seznam.zapto.org:8808

ronymahmoud.casacam.net:6606

ronymahmoud.casacam.net:7707

ronymahmoud.casacam.net:8808

Mutex

imhydkyywihv

Attributes

delay
9
install
true
install_file
explorrare.exe
install_folder
%AppData%

aes.plain

Signatures

AsyncRat
AsyncRAT is designed to remotely monitor and control other computers written in C#.
rat asyncrat

Async RAT payload 2 IoCs

rat

Processes:

resource	yara_rule
behavioral1/memory/3024-3-0x0000000000340000-0x0000000000352000-memory.dmp	asyncrat
behavioral1/memory/2592-20-0x0000000000470000-0x0000000000482000-memory.dmp	asyncrat

Executes dropped EXE 1 IoCs

Processes:

explorrare.exe

pid process

2592 explorrare.exe
Loads dropped DLL 1 IoCs

Processes:

cmd.exe

pid process

2616 cmd.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

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/Job
T1053

Processes:

schtasks.exe

pid process

2908 schtasks.exe
Delays execution with timeout.exe 1 IoCs
evasion

Processes:

timeout.exe

pid process

2712 timeout.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

5178C3D5FB3E9A5CC0AA428226515BAC.exe

pid process

3024 5178C3D5FB3E9A5CC0AA428226515BAC.exe
3024 5178C3D5FB3E9A5CC0AA428226515BAC.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

5178C3D5FB3E9A5CC0AA428226515BAC.exeexplorrare.exe

description pid process

Token: SeDebugPrivilege 3024 5178C3D5FB3E9A5CC0AA428226515BAC.exe
Token: SeDebugPrivilege 2592 explorrare.exe

pid	process
2592	explorrare.exe

pid	process
2616	cmd.exe

pid	process
2908	schtasks.exe

pid	process
2712	timeout.exe

pid	process
3024	5178C3D5FB3E9A5CC0AA428226515BAC.exe
3024	5178C3D5FB3E9A5CC0AA428226515BAC.exe

description	pid	process
Token: SeDebugPrivilege	3024	5178C3D5FB3E9A5CC0AA428226515BAC.exe
Token: SeDebugPrivilege	2592	explorrare.exe

Suspicious use of WriteProcessMemory 20 IoCs

Processes:

5178C3D5FB3E9A5CC0AA428226515BAC.execmd.execmd.exe

description	pid	process	target process
PID 3024 wrote to memory of 2068	3024	5178C3D5FB3E9A5CC0AA428226515BAC.exe	cmd.exe
PID 3024 wrote to memory of 2068	3024	5178C3D5FB3E9A5CC0AA428226515BAC.exe	cmd.exe
PID 3024 wrote to memory of 2068	3024	5178C3D5FB3E9A5CC0AA428226515BAC.exe	cmd.exe
PID 3024 wrote to memory of 2068	3024	5178C3D5FB3E9A5CC0AA428226515BAC.exe	cmd.exe
PID 3024 wrote to memory of 2616	3024	5178C3D5FB3E9A5CC0AA428226515BAC.exe	cmd.exe
PID 3024 wrote to memory of 2616	3024	5178C3D5FB3E9A5CC0AA428226515BAC.exe	cmd.exe
PID 3024 wrote to memory of 2616	3024	5178C3D5FB3E9A5CC0AA428226515BAC.exe	cmd.exe
PID 3024 wrote to memory of 2616	3024	5178C3D5FB3E9A5CC0AA428226515BAC.exe	cmd.exe
PID 2616 wrote to memory of 2712	2616	cmd.exe	timeout.exe
PID 2616 wrote to memory of 2712	2616	cmd.exe	timeout.exe
PID 2616 wrote to memory of 2712	2616	cmd.exe	timeout.exe
PID 2616 wrote to memory of 2712	2616	cmd.exe	timeout.exe
PID 2068 wrote to memory of 2908	2068	cmd.exe	schtasks.exe
PID 2068 wrote to memory of 2908	2068	cmd.exe	schtasks.exe
PID 2068 wrote to memory of 2908	2068	cmd.exe	schtasks.exe
PID 2068 wrote to memory of 2908	2068	cmd.exe	schtasks.exe
PID 2616 wrote to memory of 2592	2616	cmd.exe	explorrare.exe
PID 2616 wrote to memory of 2592	2616	cmd.exe	explorrare.exe
PID 2616 wrote to memory of 2592	2616	cmd.exe	explorrare.exe
PID 2616 wrote to memory of 2592	2616	cmd.exe	explorrare.exe

C:\Users\Admin\AppData\Local\Temp\5178C3D5FB3E9A5CC0AA428226515BAC.exe
"C:\Users\Admin\AppData\Local\Temp\5178C3D5FB3E9A5CC0AA428226515BAC.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3024

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /ru system /rl highest /tn 5178C3D5FB3E9A5CC0AA428226515BAC /tr '"C:\Users\Admin\AppData\Roaming\explorrare.exe"' & exit
2⤵
- Suspicious use of WriteProcessMemory
PID:2068

C:\Windows\SysWOW64\schtasks.exe
schtasks /create /f /sc onlogon /ru system /rl highest /tn 5178C3D5FB3E9A5CC0AA428226515BAC /tr '"C:\Users\Admin\AppData\Roaming\explorrare.exe"'
3⤵
- Creates scheduled task(s)
PID:2908

C:\Windows\SysWOW64\cmd.exe
cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmp646E.tmp.bat""
2⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2616

C:\Windows\SysWOW64\timeout.exe
timeout 3
3⤵
- Delays execution with timeout.exe
PID:2712

C:\Users\Admin\AppData\Roaming\explorrare.exe
"C:\Users\Admin\AppData\Roaming\explorrare.exe"
3⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:2592

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1

T1053

Persistence

Scheduled Task/Job

1

T1053

Privilege Escalation

Scheduled Task/Job

1

T1053

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp646E.tmp.bat

Filesize
154B

MD5
fa03554d057b66a2664986faaa63ae63

SHA1
4c473fae03306300db2472954fee5324537bd417

SHA256
96adfaecad85fbd60fcd871959220cc593f6ca1023c8a4ce8cec373ac8b2cec5

SHA512
b385a76b52119f4c6390a02063acee9a417806de2664ba1b6afb24e004b8164e10b10b8536ed58609062ed1a611d6333a566c46a2b661e8c3c51f33ba11ac44a

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp646E.tmp.bat

Filesize
154B

MD5
fa03554d057b66a2664986faaa63ae63

SHA1
4c473fae03306300db2472954fee5324537bd417

SHA256
96adfaecad85fbd60fcd871959220cc593f6ca1023c8a4ce8cec373ac8b2cec5

SHA512
b385a76b52119f4c6390a02063acee9a417806de2664ba1b6afb24e004b8164e10b10b8536ed58609062ed1a611d6333a566c46a2b661e8c3c51f33ba11ac44a

Download Submit
C:\Users\Admin\AppData\Roaming\explorrare.exe

Filesize
1.4MB

MD5
5178c3d5fb3e9a5cc0aa428226515bac

SHA1
1ed781155e6ea6794657101797bf003381ca6d58

SHA256
b2c929f7f2d37b9d1e16e8a0e42fb85e6d9cb5cef8d83dc9bac31a102865e612

SHA512
f509d79c2f2a84605b607c13ad396c468fe15a459dac87629c8700e34d4aff6c94974d734234a5144e6dfc9d70c0b44d24ba77359654e0cd00e1749dc8b18d37

Download Submit
C:\Users\Admin\AppData\Roaming\explorrare.exe

Filesize
1.4MB

MD5
5178c3d5fb3e9a5cc0aa428226515bac

SHA1
1ed781155e6ea6794657101797bf003381ca6d58

SHA256
b2c929f7f2d37b9d1e16e8a0e42fb85e6d9cb5cef8d83dc9bac31a102865e612

SHA512
f509d79c2f2a84605b607c13ad396c468fe15a459dac87629c8700e34d4aff6c94974d734234a5144e6dfc9d70c0b44d24ba77359654e0cd00e1749dc8b18d37

Download Submit
\Users\Admin\AppData\Roaming\explorrare.exe

Filesize
1.4MB

MD5
5178c3d5fb3e9a5cc0aa428226515bac

SHA1
1ed781155e6ea6794657101797bf003381ca6d58

SHA256
b2c929f7f2d37b9d1e16e8a0e42fb85e6d9cb5cef8d83dc9bac31a102865e612

SHA512
f509d79c2f2a84605b607c13ad396c468fe15a459dac87629c8700e34d4aff6c94974d734234a5144e6dfc9d70c0b44d24ba77359654e0cd00e1749dc8b18d37

Download Submit
memory/2592-19-0x0000000000EF0000-0x000000000105A000-memory.dmp

Filesize
1.4MB

Download
memory/2592-18-0x0000000074360000-0x0000000074A4E000-memory.dmp

Filesize
6.9MB

Download
memory/2592-20-0x0000000000470000-0x0000000000482000-memory.dmp

Filesize
72KB

Download
memory/2592-21-0x0000000004990000-0x00000000049D0000-memory.dmp

Filesize
256KB

Download
memory/2592-22-0x0000000074360000-0x0000000074A4E000-memory.dmp

Filesize
6.9MB

Download
memory/2592-35-0x0000000004990000-0x00000000049D0000-memory.dmp

Filesize
256KB

Download
memory/3024-4-0x00000000743B0000-0x0000000074A9E000-memory.dmp

Filesize
6.9MB

Download
memory/3024-14-0x00000000743B0000-0x0000000074A9E000-memory.dmp

Filesize
6.9MB

Download
memory/3024-3-0x0000000000340000-0x0000000000352000-memory.dmp

Filesize
72KB

Download
memory/3024-2-0x0000000004B90000-0x0000000004BD0000-memory.dmp

Filesize
256KB

Download
memory/3024-0-0x0000000000F80000-0x00000000010EA000-memory.dmp

Filesize
1.4MB

Download
memory/3024-1-0x00000000743B0000-0x0000000074A9E000-memory.dmp

Filesize
6.9MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads