asyncrat | df4d60e5d7a9c383b436485940669e2c5a392c1b4d1a067d4e75221329896b6c

General

Target

2D9F91AC0FE77150A2BC25302E4EA629.exe
Size

45KB
MD5

2d9f91ac0fe77150a2bc25302e4ea629
SHA1

7fb56eb3ee9be33b13b80df969cdf0aaba59a573
SHA256

df4d60e5d7a9c383b436485940669e2c5a392c1b4d1a067d4e75221329896b6c
SHA512

8582989ded603f0a56d6cd7ceea410a4d4f2f17d7b81d3a9c914941fd112fc9b966fc718156699c47afb87726e14c050fd3c10c2efdc376772c7a3e5bc87ba37

Score

10^/10

asyncrat rat suricata

Malware Config

Extracted

Family

asyncrat

Version

0.5.7B

C2

77.204.204.154:6606

Mutex

AsyncMutex_6SI8OkPnk

Attributes

aes_key
3JEv3splanEIrip0D2y4wDa4Uxi85seG
anti_detection
false
autorun
true
bdos
false
delay
Default
host
77.204.204.154
hwid
3
install_file
install_folder
%AppData%
mutex
AsyncMutex_6SI8OkPnk
pastebin_config
null
port
6606
version
0.5.7B

aes.plain

Signatures

AsyncRat
AsyncRAT is designed to remotely monitor and control other computers.
rat asyncrat
suricata: ET MALWARE Observed Malicious SSL Cert (AsyncRAT Server)
suricata

Async RAT payload 2 IoCs

rat

Processes:

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

Executes dropped EXE 1 IoCs

Processes:

svsystem.exe

pid process

3732 svsystem.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

1968 schtasks.exe
Delays execution with timeout.exe 1 IoCs
evasion

Processes:

timeout.exe

pid process

3468 timeout.exe

pid	process
3732	svsystem.exe

pid	process
1968	schtasks.exe

pid	process
3468	timeout.exe

Suspicious behavior: EnumeratesProcesses 13 IoCs

Processes:

2D9F91AC0FE77150A2BC25302E4EA629.exe

pid	process
568	2D9F91AC0FE77150A2BC25302E4EA629.exe
568	2D9F91AC0FE77150A2BC25302E4EA629.exe
568	2D9F91AC0FE77150A2BC25302E4EA629.exe
568	2D9F91AC0FE77150A2BC25302E4EA629.exe
568	2D9F91AC0FE77150A2BC25302E4EA629.exe
568	2D9F91AC0FE77150A2BC25302E4EA629.exe
568	2D9F91AC0FE77150A2BC25302E4EA629.exe
568	2D9F91AC0FE77150A2BC25302E4EA629.exe
568	2D9F91AC0FE77150A2BC25302E4EA629.exe
568	2D9F91AC0FE77150A2BC25302E4EA629.exe
568	2D9F91AC0FE77150A2BC25302E4EA629.exe
568	2D9F91AC0FE77150A2BC25302E4EA629.exe
568	2D9F91AC0FE77150A2BC25302E4EA629.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

2D9F91AC0FE77150A2BC25302E4EA629.exesvsystem.exe

description pid process

Token: SeDebugPrivilege 568 2D9F91AC0FE77150A2BC25302E4EA629.exe
Token: SeDebugPrivilege 3732 svsystem.exe

description	pid	process
Token: SeDebugPrivilege	568	2D9F91AC0FE77150A2BC25302E4EA629.exe
Token: SeDebugPrivilege	3732	svsystem.exe

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

2D9F91AC0FE77150A2BC25302E4EA629.execmd.execmd.exe

description	pid	process	target process
PID 568 wrote to memory of 3736	568	2D9F91AC0FE77150A2BC25302E4EA629.exe	cmd.exe
PID 568 wrote to memory of 3736	568	2D9F91AC0FE77150A2BC25302E4EA629.exe	cmd.exe
PID 568 wrote to memory of 3736	568	2D9F91AC0FE77150A2BC25302E4EA629.exe	cmd.exe
PID 568 wrote to memory of 184	568	2D9F91AC0FE77150A2BC25302E4EA629.exe	cmd.exe
PID 568 wrote to memory of 184	568	2D9F91AC0FE77150A2BC25302E4EA629.exe	cmd.exe
PID 568 wrote to memory of 184	568	2D9F91AC0FE77150A2BC25302E4EA629.exe	cmd.exe
PID 3736 wrote to memory of 1968	3736	cmd.exe	schtasks.exe
PID 3736 wrote to memory of 1968	3736	cmd.exe	schtasks.exe
PID 3736 wrote to memory of 1968	3736	cmd.exe	schtasks.exe
PID 184 wrote to memory of 3468	184	cmd.exe	timeout.exe
PID 184 wrote to memory of 3468	184	cmd.exe	timeout.exe
PID 184 wrote to memory of 3468	184	cmd.exe	timeout.exe
PID 184 wrote to memory of 3732	184	cmd.exe	svsystem.exe
PID 184 wrote to memory of 3732	184	cmd.exe	svsystem.exe
PID 184 wrote to memory of 3732	184	cmd.exe	svsystem.exe

C:\Users\Admin\AppData\Local\Temp\2D9F91AC0FE77150A2BC25302E4EA629.exe
"C:\Users\Admin\AppData\Local\Temp\2D9F91AC0FE77150A2BC25302E4EA629.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:568

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "svsystem" /tr '"C:\Users\Admin\AppData\Roaming\svsystem.exe"' & exit
2⤵
- Suspicious use of WriteProcessMemory
PID:3736

C:\Windows\SysWOW64\schtasks.exe
schtasks /create /f /sc onlogon /rl highest /tn "svsystem" /tr '"C:\Users\Admin\AppData\Roaming\svsystem.exe"'
3⤵
- Creates scheduled task(s)
PID:1968

C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp980F.tmp.bat""
2⤵
- Suspicious use of WriteProcessMemory
PID:184

C:\Windows\SysWOW64\timeout.exe
timeout 3
3⤵
- Delays execution with timeout.exe
PID:3468

C:\Users\Admin\AppData\Roaming\svsystem.exe
"C:\Users\Admin\AppData\Roaming\svsystem.exe"
3⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:3732

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\tmp980F.tmp.bat
MD5
ee21dc8eb59026c9a1e325135587bd69

SHA1
c7999f6a1d3608411f15993bf398727674b2d166

SHA256
0f0600bd694fc258a2aa635ac376ad98c75d20b704604673a82fb2b1da718a8d

SHA512
d0b420df52a4c4807b4cbdbff403641d4071da93bc5c369a0584535ceb5d5ebff119551e54ab589b5db075c9dd6b189c654c299b7c4db88ae599a6d4b3d4186e

Download Submit
C:\Users\Admin\AppData\Roaming\svsystem.exe
MD5
2d9f91ac0fe77150a2bc25302e4ea629

SHA1
7fb56eb3ee9be33b13b80df969cdf0aaba59a573

SHA256
df4d60e5d7a9c383b436485940669e2c5a392c1b4d1a067d4e75221329896b6c

SHA512
8582989ded603f0a56d6cd7ceea410a4d4f2f17d7b81d3a9c914941fd112fc9b966fc718156699c47afb87726e14c050fd3c10c2efdc376772c7a3e5bc87ba37

Download Submit
C:\Users\Admin\AppData\Roaming\svsystem.exe
MD5
2d9f91ac0fe77150a2bc25302e4ea629

SHA1
7fb56eb3ee9be33b13b80df969cdf0aaba59a573

SHA256
df4d60e5d7a9c383b436485940669e2c5a392c1b4d1a067d4e75221329896b6c

SHA512
8582989ded603f0a56d6cd7ceea410a4d4f2f17d7b81d3a9c914941fd112fc9b966fc718156699c47afb87726e14c050fd3c10c2efdc376772c7a3e5bc87ba37

Download Submit
memory/184-119-0x0000000000000000-mapping.dmp

Download
memory/568-117-0x0000000004C50000-0x0000000004C51000-memory.dmp

Filesize
4KB

Download
memory/568-116-0x0000000002540000-0x0000000002541000-memory.dmp

Filesize
4KB

Download
memory/568-114-0x0000000000320000-0x0000000000321000-memory.dmp

Filesize
4KB

Download
memory/1968-121-0x0000000000000000-mapping.dmp

Download
memory/3468-122-0x0000000000000000-mapping.dmp

Download
memory/3732-123-0x0000000000000000-mapping.dmp

Download
memory/3732-128-0x0000000005700000-0x0000000005701000-memory.dmp

Filesize
4KB

Download
memory/3732-130-0x0000000006340000-0x0000000006341000-memory.dmp

Filesize
4KB

Download
memory/3732-131-0x0000000005EB0000-0x0000000005EB1000-memory.dmp

Filesize
4KB

Download
memory/3736-118-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads