asyncrat | c4f1607f0ed89f4e6f26de27bd67cc511acdebdcc92441ed760fefbd190d1e32

General

Target

Stub.exe
Size

45KB
MD5

73bcac6a9b04a0e3afa2f1b62103aeec
SHA1

7583daee7155733d88e1f1e688af6ed3245fba9c
SHA256

c4f1607f0ed89f4e6f26de27bd67cc511acdebdcc92441ed760fefbd190d1e32
SHA512

91ea25865e4f7658a03f35a3a3a883f06fd2bb5533a2bc7f311afc69d780b59fccc9fa98e43eacb1039ac2feb6295c3eab45c843f0ec226d1997c26af599b90e

Score

10^/10

asyncrat rat

Malware Config

Extracted

Family

asyncrat

Version

0.5.7B

C2

mazi.ddns.net:2066

Mutex

AsyncMutex_6SI8OkPnk

Attributes

aes_key
QOvO5FC2sdXjluSQPHx2mlSamLh7qeQR
anti_detection
false
autorun
true
bdos
false
delay
Default
host
mazi.ddns.net
hwid
10
install_file
install_folder
%AppData%
mutex
AsyncMutex_6SI8OkPnk
pastebin_config
null
port
2066
version
0.5.7B

aes.plain

Signatures

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

Async RAT payload 3 IoCs

rat

Processes:

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

Executes dropped EXE 1 IoCs

Processes:

DONDON.exe

pid process

1084 DONDON.exe
Loads dropped DLL 1 IoCs

Processes:

cmd.exe

pid process

1784 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

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

Processes:

timeout.exe

pid process

1472 timeout.exe
Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

Stub.exe

pid process

1996 Stub.exe
1996 Stub.exe
1996 Stub.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

Stub.exeDONDON.exe

description pid process

Token: SeDebugPrivilege 1996 Stub.exe
Token: SeDebugPrivilege 1084 DONDON.exe

pid	process
1084	DONDON.exe

pid	process
1784	cmd.exe

pid	process
304	schtasks.exe

pid	process
1472	timeout.exe

pid	process
1996	Stub.exe
1996	Stub.exe
1996	Stub.exe

description	pid	process
Token: SeDebugPrivilege	1996	Stub.exe
Token: SeDebugPrivilege	1084	DONDON.exe

Suspicious use of WriteProcessMemory 20 IoCs

Processes:

Stub.execmd.execmd.exe

description	pid	process	target process
PID 1996 wrote to memory of 848	1996	Stub.exe	cmd.exe
PID 1996 wrote to memory of 848	1996	Stub.exe	cmd.exe
PID 1996 wrote to memory of 848	1996	Stub.exe	cmd.exe
PID 1996 wrote to memory of 848	1996	Stub.exe	cmd.exe
PID 1996 wrote to memory of 1784	1996	Stub.exe	cmd.exe
PID 1996 wrote to memory of 1784	1996	Stub.exe	cmd.exe
PID 1996 wrote to memory of 1784	1996	Stub.exe	cmd.exe
PID 1996 wrote to memory of 1784	1996	Stub.exe	cmd.exe
PID 848 wrote to memory of 304	848	cmd.exe	schtasks.exe
PID 848 wrote to memory of 304	848	cmd.exe	schtasks.exe
PID 848 wrote to memory of 304	848	cmd.exe	schtasks.exe
PID 848 wrote to memory of 304	848	cmd.exe	schtasks.exe
PID 1784 wrote to memory of 1472	1784	cmd.exe	timeout.exe
PID 1784 wrote to memory of 1472	1784	cmd.exe	timeout.exe
PID 1784 wrote to memory of 1472	1784	cmd.exe	timeout.exe
PID 1784 wrote to memory of 1472	1784	cmd.exe	timeout.exe
PID 1784 wrote to memory of 1084	1784	cmd.exe	DONDON.exe
PID 1784 wrote to memory of 1084	1784	cmd.exe	DONDON.exe
PID 1784 wrote to memory of 1084	1784	cmd.exe	DONDON.exe
PID 1784 wrote to memory of 1084	1784	cmd.exe	DONDON.exe

C:\Users\Admin\AppData\Local\Temp\Stub.exe
"C:\Users\Admin\AppData\Local\Temp\Stub.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1996

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "DONDON" /tr '"C:\Users\Admin\AppData\Roaming\DONDON.exe"' & exit
2⤵
- Suspicious use of WriteProcessMemory
PID:848

C:\Windows\SysWOW64\schtasks.exe
schtasks /create /f /sc onlogon /rl highest /tn "DONDON" /tr '"C:\Users\Admin\AppData\Roaming\DONDON.exe"'
3⤵
- Creates scheduled task(s)
PID:304

C:\Windows\SysWOW64\cmd.exe
cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmpBCE9.tmp.bat""
2⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1784

C:\Windows\SysWOW64\timeout.exe
timeout 3
3⤵
- Delays execution with timeout.exe
PID:1472

C:\Users\Admin\AppData\Roaming\DONDON.exe
"C:\Users\Admin\AppData\Roaming\DONDON.exe"
3⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:1084

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\tmpBCE9.tmp.bat
MD5
78b4937212d3b8ba5fc101d54ebfee99

SHA1
6cbb3b0107800eb79a2eea1b09c039103c80d5d9

SHA256
b87829be99ea1ecd3c0230e406b43be26972747f0defde6b7fcaef6a97afda1d

SHA512
0d4a0a521391d51515e8bf8f1c8924f62555b99a0f4b2500183fb6f8e3e32718ce32200b9afb4c4b62b75e7697f284f434f3fe2fb9c198561efebdece961f62c

Download Submit
C:\Users\Admin\AppData\Roaming\DONDON.exe
MD5
73bcac6a9b04a0e3afa2f1b62103aeec

SHA1
7583daee7155733d88e1f1e688af6ed3245fba9c

SHA256
c4f1607f0ed89f4e6f26de27bd67cc511acdebdcc92441ed760fefbd190d1e32

SHA512
91ea25865e4f7658a03f35a3a3a883f06fd2bb5533a2bc7f311afc69d780b59fccc9fa98e43eacb1039ac2feb6295c3eab45c843f0ec226d1997c26af599b90e

Download Submit
C:\Users\Admin\AppData\Roaming\DONDON.exe
MD5
73bcac6a9b04a0e3afa2f1b62103aeec

SHA1
7583daee7155733d88e1f1e688af6ed3245fba9c

SHA256
c4f1607f0ed89f4e6f26de27bd67cc511acdebdcc92441ed760fefbd190d1e32

SHA512
91ea25865e4f7658a03f35a3a3a883f06fd2bb5533a2bc7f311afc69d780b59fccc9fa98e43eacb1039ac2feb6295c3eab45c843f0ec226d1997c26af599b90e

Download Submit
\Users\Admin\AppData\Roaming\DONDON.exe
MD5
73bcac6a9b04a0e3afa2f1b62103aeec

SHA1
7583daee7155733d88e1f1e688af6ed3245fba9c

SHA256
c4f1607f0ed89f4e6f26de27bd67cc511acdebdcc92441ed760fefbd190d1e32

SHA512
91ea25865e4f7658a03f35a3a3a883f06fd2bb5533a2bc7f311afc69d780b59fccc9fa98e43eacb1039ac2feb6295c3eab45c843f0ec226d1997c26af599b90e

Download Submit
memory/304-66-0x0000000000000000-mapping.dmp

Download
memory/848-64-0x0000000000000000-mapping.dmp

Download
memory/1084-71-0x0000000000000000-mapping.dmp

Download
memory/1084-73-0x0000000000AC0000-0x0000000000AC1000-memory.dmp

Filesize
4KB

Download
memory/1084-76-0x0000000004BC0000-0x0000000004BC1000-memory.dmp

Filesize
4KB

Download
memory/1472-68-0x0000000000000000-mapping.dmp

Download
memory/1784-65-0x0000000000000000-mapping.dmp

Download
memory/1996-63-0x0000000002030000-0x0000000002031000-memory.dmp

Filesize
4KB

Download
memory/1996-62-0x00000000767B1000-0x00000000767B3000-memory.dmp

Filesize
8KB

Download
memory/1996-60-0x00000000003A0000-0x00000000003A1000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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