asyncrat | 75c8700bde8f6d468164fbcc3bee7f877330dbce27713e6b4d2969524bc2e4a4

General

Target

75c8700bde8f6d468164fbcc3bee7f877330dbce27713e6b4d2969524bc2e4a4.exe
Size

196KB
MD5

4bb78b357355de65331534be4f1c53d3
SHA1

a318fdbff560c4afb1ed85686578a12fd85227e0
SHA256

75c8700bde8f6d468164fbcc3bee7f877330dbce27713e6b4d2969524bc2e4a4
SHA512

95135d7b7dd4a0cb6db08bc269c030ece5a86d333741b2bc9c1fb9b52957411019d8b3bd54fc670d9668cf4a4147109cd2c74f49425dd21ebecb3b98e69cb2f4
SSDEEP

3072:vLBy3wJIadagPv77DFjbp1UG+SKGLxy9RZLhOkaOyVa3b+cmDjbd5/V/XMu:1yAJ15373Fjbp+SXxwOkPMsbz6j7Fcu

Score

10^/10

asyncrat default rat

Malware Config

Extracted

Family

asyncrat

Version

0.5.7B

Botnet

Default

C2

mr7bashbab.ddns.net:6606

mr7bashbab.ddns.net:7707

mr7bashbab.ddns.net:8808

mr7bashbab.ddns.net:59588

Mutex

AsyncMutex_6SI8OkPnk

Attributes

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

aes.plain

Signatures

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

Async RAT payload 1 IoCs

rat

Processes:

resource	yara_rule
behavioral1/memory/1304-55-0x0000000000210000-0x0000000000222000-memory.dmp	asyncrat

Executes dropped EXE 1 IoCs

Processes:

.M.exe

pid process

584 .M.exe
Loads dropped DLL 1 IoCs

Processes:

cmd.exe

pid process

456 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

1712 schtasks.exe
Delays execution with timeout.exe 1 IoCs
evasion

Processes:

timeout.exe

pid process

320 timeout.exe
Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

75c8700bde8f6d468164fbcc3bee7f877330dbce27713e6b4d2969524bc2e4a4.exe

pid process

1304 75c8700bde8f6d468164fbcc3bee7f877330dbce27713e6b4d2969524bc2e4a4.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

75c8700bde8f6d468164fbcc3bee7f877330dbce27713e6b4d2969524bc2e4a4.exe.M.exe

description pid process

Token: SeDebugPrivilege 1304 75c8700bde8f6d468164fbcc3bee7f877330dbce27713e6b4d2969524bc2e4a4.exe
Token: SeDebugPrivilege 584 .M.exe

pid	process
584	.M.exe

pid	process
456	cmd.exe

pid	process
1712	schtasks.exe

pid	process
320	timeout.exe

pid	process
1304	75c8700bde8f6d468164fbcc3bee7f877330dbce27713e6b4d2969524bc2e4a4.exe

description	pid	process
Token: SeDebugPrivilege	1304	75c8700bde8f6d468164fbcc3bee7f877330dbce27713e6b4d2969524bc2e4a4.exe
Token: SeDebugPrivilege	584	.M.exe

Suspicious use of WriteProcessMemory 20 IoCs

Processes:

75c8700bde8f6d468164fbcc3bee7f877330dbce27713e6b4d2969524bc2e4a4.execmd.execmd.exe

description	pid	process	target process
PID 1304 wrote to memory of 1336	1304	75c8700bde8f6d468164fbcc3bee7f877330dbce27713e6b4d2969524bc2e4a4.exe	cmd.exe
PID 1304 wrote to memory of 1336	1304	75c8700bde8f6d468164fbcc3bee7f877330dbce27713e6b4d2969524bc2e4a4.exe	cmd.exe
PID 1304 wrote to memory of 1336	1304	75c8700bde8f6d468164fbcc3bee7f877330dbce27713e6b4d2969524bc2e4a4.exe	cmd.exe
PID 1304 wrote to memory of 1336	1304	75c8700bde8f6d468164fbcc3bee7f877330dbce27713e6b4d2969524bc2e4a4.exe	cmd.exe
PID 1304 wrote to memory of 456	1304	75c8700bde8f6d468164fbcc3bee7f877330dbce27713e6b4d2969524bc2e4a4.exe	cmd.exe
PID 1304 wrote to memory of 456	1304	75c8700bde8f6d468164fbcc3bee7f877330dbce27713e6b4d2969524bc2e4a4.exe	cmd.exe
PID 1304 wrote to memory of 456	1304	75c8700bde8f6d468164fbcc3bee7f877330dbce27713e6b4d2969524bc2e4a4.exe	cmd.exe
PID 1304 wrote to memory of 456	1304	75c8700bde8f6d468164fbcc3bee7f877330dbce27713e6b4d2969524bc2e4a4.exe	cmd.exe
PID 456 wrote to memory of 320	456	cmd.exe	timeout.exe
PID 456 wrote to memory of 320	456	cmd.exe	timeout.exe
PID 456 wrote to memory of 320	456	cmd.exe	timeout.exe
PID 456 wrote to memory of 320	456	cmd.exe	timeout.exe
PID 1336 wrote to memory of 1712	1336	cmd.exe	schtasks.exe
PID 1336 wrote to memory of 1712	1336	cmd.exe	schtasks.exe
PID 1336 wrote to memory of 1712	1336	cmd.exe	schtasks.exe
PID 1336 wrote to memory of 1712	1336	cmd.exe	schtasks.exe
PID 456 wrote to memory of 584	456	cmd.exe	.M.exe
PID 456 wrote to memory of 584	456	cmd.exe	.M.exe
PID 456 wrote to memory of 584	456	cmd.exe	.M.exe
PID 456 wrote to memory of 584	456	cmd.exe	.M.exe

C:\Users\Admin\AppData\Local\Temp\75c8700bde8f6d468164fbcc3bee7f877330dbce27713e6b4d2969524bc2e4a4.exe
"C:\Users\Admin\AppData\Local\Temp\75c8700bde8f6d468164fbcc3bee7f877330dbce27713e6b4d2969524bc2e4a4.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1304

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn ".M" /tr '"C:\Users\Admin\AppData\Roaming\.M.exe"' & exit
2⤵
- Suspicious use of WriteProcessMemory
PID:1336

C:\Windows\SysWOW64\schtasks.exe
schtasks /create /f /sc onlogon /rl highest /tn ".M" /tr '"C:\Users\Admin\AppData\Roaming\.M.exe"'
3⤵
- Creates scheduled task(s)
PID:1712

C:\Windows\SysWOW64\cmd.exe
cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmp3D11.tmp.bat""
2⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:456

C:\Windows\SysWOW64\timeout.exe
timeout 3
3⤵
- Delays execution with timeout.exe
PID:320

C:\Users\Admin\AppData\Roaming\.M.exe
"C:\Users\Admin\AppData\Roaming\.M.exe"
3⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:584

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\tmp3D11.tmp.bat
Filesize
146B

MD5
5fd2ca40c744853081fceea6a0abb7a7

SHA1
5124a45eebee3d1eeebaeee7a9fa538acbafaa3b

SHA256
325baef740ca7df25f728bd41a5e45883ca40af3d6297b8ccbd2ff5f557581a9

SHA512
6d5f25f98fdeccb77f2e96e9677967933cc92dc6c422194ae489080b6e21ba9bea04b3f335d0286e9a32233439b1cdb42949355e0a7a32a3f1f062203f985a48

Download Submit
C:\Users\Admin\AppData\Roaming\.M.exe
Filesize
196KB

MD5
4bb78b357355de65331534be4f1c53d3

SHA1
a318fdbff560c4afb1ed85686578a12fd85227e0

SHA256
75c8700bde8f6d468164fbcc3bee7f877330dbce27713e6b4d2969524bc2e4a4

SHA512
95135d7b7dd4a0cb6db08bc269c030ece5a86d333741b2bc9c1fb9b52957411019d8b3bd54fc670d9668cf4a4147109cd2c74f49425dd21ebecb3b98e69cb2f4

Download Submit
C:\Users\Admin\AppData\Roaming\.M.exe
Filesize
196KB

MD5
4bb78b357355de65331534be4f1c53d3

SHA1
a318fdbff560c4afb1ed85686578a12fd85227e0

SHA256
75c8700bde8f6d468164fbcc3bee7f877330dbce27713e6b4d2969524bc2e4a4

SHA512
95135d7b7dd4a0cb6db08bc269c030ece5a86d333741b2bc9c1fb9b52957411019d8b3bd54fc670d9668cf4a4147109cd2c74f49425dd21ebecb3b98e69cb2f4

Download Submit
\Users\Admin\AppData\Roaming\.M.exe
Filesize
196KB

MD5
4bb78b357355de65331534be4f1c53d3

SHA1
a318fdbff560c4afb1ed85686578a12fd85227e0

SHA256
75c8700bde8f6d468164fbcc3bee7f877330dbce27713e6b4d2969524bc2e4a4

SHA512
95135d7b7dd4a0cb6db08bc269c030ece5a86d333741b2bc9c1fb9b52957411019d8b3bd54fc670d9668cf4a4147109cd2c74f49425dd21ebecb3b98e69cb2f4

Download Submit
memory/320-59-0x0000000000000000-mapping.dmp

Download
memory/456-57-0x0000000000000000-mapping.dmp

Download
memory/584-63-0x0000000000000000-mapping.dmp

Download
memory/584-65-0x0000000000DA0000-0x0000000000DA8000-memory.dmp

Filesize
32KB

Download
memory/1304-54-0x0000000001200000-0x0000000001208000-memory.dmp

Filesize
32KB

Download
memory/1304-55-0x0000000000210000-0x0000000000222000-memory.dmp

Filesize
72KB

Download
memory/1336-56-0x0000000000000000-mapping.dmp

Download
memory/1712-60-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads