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

3216 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

4036 schtasks.exe
Delays execution with timeout.exe 1 IoCs
evasion

Processes:

timeout.exe

pid process

4196 timeout.exe

pid	process
3216	svsystem.exe

pid	process
4036	schtasks.exe

pid	process
4196	timeout.exe

Suspicious behavior: EnumeratesProcesses 15 IoCs

Processes:

2D9F91AC0FE77150A2BC25302E4EA629.exe

pid	process
4648	2D9F91AC0FE77150A2BC25302E4EA629.exe
4648	2D9F91AC0FE77150A2BC25302E4EA629.exe
4648	2D9F91AC0FE77150A2BC25302E4EA629.exe
4648	2D9F91AC0FE77150A2BC25302E4EA629.exe
4648	2D9F91AC0FE77150A2BC25302E4EA629.exe
4648	2D9F91AC0FE77150A2BC25302E4EA629.exe
4648	2D9F91AC0FE77150A2BC25302E4EA629.exe
4648	2D9F91AC0FE77150A2BC25302E4EA629.exe
4648	2D9F91AC0FE77150A2BC25302E4EA629.exe
4648	2D9F91AC0FE77150A2BC25302E4EA629.exe
4648	2D9F91AC0FE77150A2BC25302E4EA629.exe
4648	2D9F91AC0FE77150A2BC25302E4EA629.exe
4648	2D9F91AC0FE77150A2BC25302E4EA629.exe
4648	2D9F91AC0FE77150A2BC25302E4EA629.exe
4648	2D9F91AC0FE77150A2BC25302E4EA629.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

2D9F91AC0FE77150A2BC25302E4EA629.exesvsystem.exe

description pid process

Token: SeDebugPrivilege 4648 2D9F91AC0FE77150A2BC25302E4EA629.exe
Token: SeDebugPrivilege 3216 svsystem.exe

description	pid	process
Token: SeDebugPrivilege	4648	2D9F91AC0FE77150A2BC25302E4EA629.exe
Token: SeDebugPrivilege	3216	svsystem.exe

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

2D9F91AC0FE77150A2BC25302E4EA629.execmd.execmd.exe

description	pid	process	target process
PID 4648 wrote to memory of 3244	4648	2D9F91AC0FE77150A2BC25302E4EA629.exe	cmd.exe
PID 4648 wrote to memory of 3244	4648	2D9F91AC0FE77150A2BC25302E4EA629.exe	cmd.exe
PID 4648 wrote to memory of 3244	4648	2D9F91AC0FE77150A2BC25302E4EA629.exe	cmd.exe
PID 4648 wrote to memory of 3316	4648	2D9F91AC0FE77150A2BC25302E4EA629.exe	cmd.exe
PID 4648 wrote to memory of 3316	4648	2D9F91AC0FE77150A2BC25302E4EA629.exe	cmd.exe
PID 4648 wrote to memory of 3316	4648	2D9F91AC0FE77150A2BC25302E4EA629.exe	cmd.exe
PID 3244 wrote to memory of 4036	3244	cmd.exe	schtasks.exe
PID 3244 wrote to memory of 4036	3244	cmd.exe	schtasks.exe
PID 3244 wrote to memory of 4036	3244	cmd.exe	schtasks.exe
PID 3316 wrote to memory of 4196	3316	cmd.exe	timeout.exe
PID 3316 wrote to memory of 4196	3316	cmd.exe	timeout.exe
PID 3316 wrote to memory of 4196	3316	cmd.exe	timeout.exe
PID 3316 wrote to memory of 3216	3316	cmd.exe	svsystem.exe
PID 3316 wrote to memory of 3216	3316	cmd.exe	svsystem.exe
PID 3316 wrote to memory of 3216	3316	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:4648

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:3244

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:4036

C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp8572.tmp.bat""
2⤵
- Suspicious use of WriteProcessMemory
PID:3316

C:\Windows\SysWOW64\timeout.exe
timeout 3
3⤵
- Delays execution with timeout.exe
PID:4196

C:\Users\Admin\AppData\Roaming\svsystem.exe
"C:\Users\Admin\AppData\Roaming\svsystem.exe"
3⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:3216

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\tmp8572.tmp.bat
MD5
318438ce3912b6db27f405ae8926d91d

SHA1
191a3233f7753b0eeaf7a6be8952b3cf6ec3626e

SHA256
63e214fc06ca8feb800fa9b31686314f3a056f402f898ce589a56b24c033cbc9

SHA512
8bac3bdab701f20d4021772984005866df2b4961002030c8a56c9a4c0028f4c0bca93da1da0633347f77c8c9e616f4fe5c7d88d8685a5678cf13b561edf37c8a

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/3216-123-0x0000000000000000-mapping.dmp

Download
memory/3216-131-0x00000000056E0000-0x00000000056E1000-memory.dmp

Filesize
4KB

Download
memory/3216-130-0x0000000005BE0000-0x0000000005BE1000-memory.dmp

Filesize
4KB

Download
memory/3216-128-0x0000000004EA0000-0x0000000004EA1000-memory.dmp

Filesize
4KB

Download
memory/3244-118-0x0000000000000000-mapping.dmp

Download
memory/3316-119-0x0000000000000000-mapping.dmp

Download
memory/4036-121-0x0000000000000000-mapping.dmp

Download
memory/4196-122-0x0000000000000000-mapping.dmp

Download
memory/4648-114-0x00000000001C0000-0x00000000001C1000-memory.dmp

Filesize
4KB

Download
memory/4648-117-0x0000000004BB0000-0x0000000004BB1000-memory.dmp

Filesize
4KB

Download
memory/4648-116-0x0000000002690000-0x0000000002691000-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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Downloads