asyncrat | 53e43388c51de2879429ef05b1ac8a636024f419a9f9d56d7afabf104db721aa

General

Target

AsyncAplicativo.exe
Size

47KB
MD5

711fbd6412e3030d4653a05883fcd498
SHA1

f1c2a454140c5e4df310643c6e5ee21e50373904
SHA256

53e43388c51de2879429ef05b1ac8a636024f419a9f9d56d7afabf104db721aa
SHA512

fe2de1c3c52b5afa5d11b27c3d7944b9cd6fcba6cfbc9404bd37e94b64f610906ed3ad75d04c7bbe2f235d87a8f9703aa6bebcd896f994e54eb70a0f2139294c
SSDEEP

768:yuiHNTdFHLBWUZiGrmo2qrKkb6uKEKqPICRPCC7RB80byrwG+a1ZlgVrZiBDZUx:yuiHNTdBR2tkcTCRPznbyrh+a1U5ZcdW

Score

10^/10

asyncrat default rat

Malware Config

Extracted

Family

asyncrat

Version

0.5.7B

Botnet

Default

C2

127.0.0.1:6606

127.0.0.1:7707

127.0.0.1:8808

127.0.0.1:8888

127.0.0.1:53370

flingmodder-53370.portmap.io:6606

flingmodder-53370.portmap.io:7707

flingmodder-53370.portmap.io:8808

flingmodder-53370.portmap.io:8888

flingmodder-53370.portmap.io:53370

Mutex

Admin

Attributes

delay
3
install
true
install_file
Windows.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/1808-54-0x00000000001D0000-0x00000000001E2000-memory.dmp	asyncrat
\Users\Admin\AppData\Roaming\Windows.exe	asyncrat
C:\Users\Admin\AppData\Roaming\Windows.exe	asyncrat
C:\Users\Admin\AppData\Roaming\Windows.exe	asyncrat
behavioral1/memory/1532-65-0x00000000011B0000-0x00000000011C2000-memory.dmp	asyncrat

Executes dropped EXE 1 IoCs

Processes:

Windows.exe

pid process

1532 Windows.exe
Loads dropped DLL 1 IoCs

Processes:

cmd.exe

pid process

752 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

1860 schtasks.exe
Delays execution with timeout.exe 1 IoCs
evasion

Processes:

timeout.exe

pid process

1960 timeout.exe
Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

AsyncAplicativo.exe

pid process

1808 AsyncAplicativo.exe
Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

AsyncAplicativo.exeWindows.exe

description pid process

Token: SeDebugPrivilege 1808 AsyncAplicativo.exe
Token: SeDebugPrivilege 1532 Windows.exe
Token: SeDebugPrivilege 1532 Windows.exe

pid	process
1532	Windows.exe

pid	process
752	cmd.exe

pid	process
1860	schtasks.exe

pid	process
1960	timeout.exe

pid	process
1808	AsyncAplicativo.exe

description	pid	process
Token: SeDebugPrivilege	1808	AsyncAplicativo.exe
Token: SeDebugPrivilege	1532	Windows.exe
Token: SeDebugPrivilege	1532	Windows.exe

Suspicious use of WriteProcessMemory 20 IoCs

Processes:

AsyncAplicativo.execmd.execmd.exe

description	pid	process	target process
PID 1808 wrote to memory of 556	1808	AsyncAplicativo.exe	cmd.exe
PID 1808 wrote to memory of 556	1808	AsyncAplicativo.exe	cmd.exe
PID 1808 wrote to memory of 556	1808	AsyncAplicativo.exe	cmd.exe
PID 1808 wrote to memory of 556	1808	AsyncAplicativo.exe	cmd.exe
PID 1808 wrote to memory of 752	1808	AsyncAplicativo.exe	cmd.exe
PID 1808 wrote to memory of 752	1808	AsyncAplicativo.exe	cmd.exe
PID 1808 wrote to memory of 752	1808	AsyncAplicativo.exe	cmd.exe
PID 1808 wrote to memory of 752	1808	AsyncAplicativo.exe	cmd.exe
PID 556 wrote to memory of 1860	556	cmd.exe	schtasks.exe
PID 556 wrote to memory of 1860	556	cmd.exe	schtasks.exe
PID 556 wrote to memory of 1860	556	cmd.exe	schtasks.exe
PID 556 wrote to memory of 1860	556	cmd.exe	schtasks.exe
PID 752 wrote to memory of 1960	752	cmd.exe	timeout.exe
PID 752 wrote to memory of 1960	752	cmd.exe	timeout.exe
PID 752 wrote to memory of 1960	752	cmd.exe	timeout.exe
PID 752 wrote to memory of 1960	752	cmd.exe	timeout.exe
PID 752 wrote to memory of 1532	752	cmd.exe	Windows.exe
PID 752 wrote to memory of 1532	752	cmd.exe	Windows.exe
PID 752 wrote to memory of 1532	752	cmd.exe	Windows.exe
PID 752 wrote to memory of 1532	752	cmd.exe	Windows.exe

C:\Users\Admin\AppData\Local\Temp\AsyncAplicativo.exe
"C:\Users\Admin\AppData\Local\Temp\AsyncAplicativo.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1808

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "Windows" /tr '"C:\Users\Admin\AppData\Roaming\Windows.exe"' & exit
2⤵
- Suspicious use of WriteProcessMemory
PID:556

C:\Windows\SysWOW64\schtasks.exe
schtasks /create /f /sc onlogon /rl highest /tn "Windows" /tr '"C:\Users\Admin\AppData\Roaming\Windows.exe"'
3⤵
- Creates scheduled task(s)
PID:1860

C:\Windows\SysWOW64\cmd.exe
cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmp4201.tmp.bat""
2⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:752

C:\Windows\SysWOW64\timeout.exe
timeout 3
3⤵
- Delays execution with timeout.exe
PID:1960

C:\Users\Admin\AppData\Roaming\Windows.exe
"C:\Users\Admin\AppData\Roaming\Windows.exe"
3⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:1532

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\tmp4201.tmp.bat
Filesize
151B

MD5
f5674a71ad77d5b3b3023663719d2d5d

SHA1
4c71a1cdaf431bf2f80d355c27fcf7554d49a737

SHA256
cceb51120234624908a6efabd8b0bde233304ccbae4c57727f86d8d9b62f7cb8

SHA512
716cc6dc322749bb5b453400971a5dce7f1277a68352d40fb44bb2f4dcc6dee978512acef6ba75454876098e945270a5584542a5f523915b30ad45f063f8aa45

Download Submit
C:\Users\Admin\AppData\Roaming\Windows.exe
Filesize
47KB

MD5
711fbd6412e3030d4653a05883fcd498

SHA1
f1c2a454140c5e4df310643c6e5ee21e50373904

SHA256
53e43388c51de2879429ef05b1ac8a636024f419a9f9d56d7afabf104db721aa

SHA512
fe2de1c3c52b5afa5d11b27c3d7944b9cd6fcba6cfbc9404bd37e94b64f610906ed3ad75d04c7bbe2f235d87a8f9703aa6bebcd896f994e54eb70a0f2139294c

Download Submit
C:\Users\Admin\AppData\Roaming\Windows.exe
Filesize
47KB

MD5
711fbd6412e3030d4653a05883fcd498

SHA1
f1c2a454140c5e4df310643c6e5ee21e50373904

SHA256
53e43388c51de2879429ef05b1ac8a636024f419a9f9d56d7afabf104db721aa

SHA512
fe2de1c3c52b5afa5d11b27c3d7944b9cd6fcba6cfbc9404bd37e94b64f610906ed3ad75d04c7bbe2f235d87a8f9703aa6bebcd896f994e54eb70a0f2139294c

Download Submit
\Users\Admin\AppData\Roaming\Windows.exe
Filesize
47KB

MD5
711fbd6412e3030d4653a05883fcd498

SHA1
f1c2a454140c5e4df310643c6e5ee21e50373904

SHA256
53e43388c51de2879429ef05b1ac8a636024f419a9f9d56d7afabf104db721aa

SHA512
fe2de1c3c52b5afa5d11b27c3d7944b9cd6fcba6cfbc9404bd37e94b64f610906ed3ad75d04c7bbe2f235d87a8f9703aa6bebcd896f994e54eb70a0f2139294c

Download Submit
memory/556-56-0x0000000000000000-mapping.dmp

Download
memory/752-57-0x0000000000000000-mapping.dmp

Download
memory/1532-63-0x0000000000000000-mapping.dmp

Download
memory/1532-65-0x00000000011B0000-0x00000000011C2000-memory.dmp

Filesize
72KB

Download
memory/1808-54-0x00000000001D0000-0x00000000001E2000-memory.dmp

Filesize
72KB

Download
memory/1808-55-0x00000000759F1000-0x00000000759F3000-memory.dmp

Filesize
8KB

Download
memory/1860-58-0x0000000000000000-mapping.dmp

Download
memory/1960-60-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads