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 2 IoCs

rat

Processes:

resource	yara_rule
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

3676 DONDON.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

2112 schtasks.exe
Delays execution with timeout.exe 1 IoCs
evasion

Processes:

timeout.exe

pid process

4016 timeout.exe

pid	process
3676	DONDON.exe

pid	process
2112	schtasks.exe

pid	process
4016	timeout.exe

Suspicious behavior: EnumeratesProcesses 15 IoCs

Processes:

Stub.exe

pid	process
4084	Stub.exe
4084	Stub.exe
4084	Stub.exe
4084	Stub.exe
4084	Stub.exe
4084	Stub.exe
4084	Stub.exe
4084	Stub.exe
4084	Stub.exe
4084	Stub.exe
4084	Stub.exe
4084	Stub.exe
4084	Stub.exe
4084	Stub.exe
4084	Stub.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

Stub.exeDONDON.exe

description pid process

Token: SeDebugPrivilege 4084 Stub.exe
Token: SeDebugPrivilege 3676 DONDON.exe

description	pid	process
Token: SeDebugPrivilege	4084	Stub.exe
Token: SeDebugPrivilege	3676	DONDON.exe

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

Stub.execmd.execmd.exe

description	pid	process	target process
PID 4084 wrote to memory of 3596	4084	Stub.exe	cmd.exe
PID 4084 wrote to memory of 3596	4084	Stub.exe	cmd.exe
PID 4084 wrote to memory of 3596	4084	Stub.exe	cmd.exe
PID 4084 wrote to memory of 3796	4084	Stub.exe	cmd.exe
PID 4084 wrote to memory of 3796	4084	Stub.exe	cmd.exe
PID 4084 wrote to memory of 3796	4084	Stub.exe	cmd.exe
PID 3596 wrote to memory of 2112	3596	cmd.exe	schtasks.exe
PID 3596 wrote to memory of 2112	3596	cmd.exe	schtasks.exe
PID 3596 wrote to memory of 2112	3596	cmd.exe	schtasks.exe
PID 3796 wrote to memory of 4016	3796	cmd.exe	timeout.exe
PID 3796 wrote to memory of 4016	3796	cmd.exe	timeout.exe
PID 3796 wrote to memory of 4016	3796	cmd.exe	timeout.exe
PID 3796 wrote to memory of 3676	3796	cmd.exe	DONDON.exe
PID 3796 wrote to memory of 3676	3796	cmd.exe	DONDON.exe
PID 3796 wrote to memory of 3676	3796	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:4084

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:3596

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:2112

C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp4636.tmp.bat""
2⤵
- Suspicious use of WriteProcessMemory
PID:3796

C:\Windows\SysWOW64\timeout.exe
timeout 3
3⤵
- Delays execution with timeout.exe
PID:4016

C:\Users\Admin\AppData\Roaming\DONDON.exe
"C:\Users\Admin\AppData\Roaming\DONDON.exe"
3⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:3676

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\tmp4636.tmp.bat
MD5
7947ec5d2601558f1436d713167fb10f

SHA1
d5be0eb79adff49bd06a1c503d0d3a5ed1fe4eb9

SHA256
883b3daf0c519c75c5c06a2562dba2eb77ae351e369c662cf8e99521fc9b1363

SHA512
078956bec64b449b7ee902e13326c2877a23c60e7ad4f08a0b21071b777d508ea13d01ebf4b4749e13c94a6b18779304b284675819e7cdb5d71e02f03ff0753a

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
memory/2112-121-0x0000000000000000-mapping.dmp

Download
memory/3596-118-0x0000000000000000-mapping.dmp

Download
memory/3676-123-0x0000000000000000-mapping.dmp

Download
memory/3676-128-0x0000000005870000-0x0000000005871000-memory.dmp

Filesize
4KB

Download
memory/3796-119-0x0000000000000000-mapping.dmp

Download
memory/4016-122-0x0000000000000000-mapping.dmp

Download
memory/4084-114-0x0000000000BA0000-0x0000000000BA1000-memory.dmp

Filesize
4KB

Download
memory/4084-116-0x00000000055B0000-0x00000000055B1000-memory.dmp

Filesize
4KB

Download
memory/4084-117-0x00000000055C0000-0x00000000055C1000-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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