asyncrat | 722dbfc5c333cdc63d078de5097c88acaee7512c37f45ce2cd5829f651aea5f2

General

Target

df759db973efd54d3d5b8b3ddf35d623.exe
Size

121KB
MD5

df759db973efd54d3d5b8b3ddf35d623
SHA1

df59c69ab3ced3f1047eafce082043c5d0e2b551
SHA256

722dbfc5c333cdc63d078de5097c88acaee7512c37f45ce2cd5829f651aea5f2
SHA512

56920f82347ece78c961adb762342417a546f26dde3bf38d8e59081ac6fe94f30b529eb08019c7d579ea5186374020710808efef8a8deb8aad5a183bcb6615e6

Score

10^/10

asyncrat rat suricata

Malware Config

Extracted

Family

asyncrat

Version

0.5.7B

C2

147.189.171.186:1337

Mutex

AsyncMutex_6SI8OkPnk

Attributes

aes_key
O3pcOHIsp8UIns8G3yPeO591MZISl4RN
anti_detection
false
autorun
true
bdos
false
delay
Default
host
147.189.171.186
hwid
3
install_file
install_folder
%AppData%
mutex
AsyncMutex_6SI8OkPnk
pastebin_config
null
port
1337
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 5 IoCs

rat

Processes:

resource	yara_rule
C:\Windows\serverstart.exe	asyncrat
C:\Windows\serverstart.exe	asyncrat
\Users\Admin\AppData\Roaming\Discord.exe	asyncrat
C:\Users\Admin\AppData\Roaming\Discord.exe	asyncrat
C:\Users\Admin\AppData\Roaming\Discord.exe	asyncrat

Downloads MZ/PE file
Executes dropped EXE 2 IoCs

Processes:

serverstart.exeDiscord.exe

pid process

340 serverstart.exe
512 Discord.exe
Loads dropped DLL 1 IoCs

Processes:

cmd.exe

pid process

1488 cmd.exe
Drops file in Windows directory 1 IoCs

Processes:

df759db973efd54d3d5b8b3ddf35d623.exe

description ioc process

File created C:\Windows\serverstart.exe df759db973efd54d3d5b8b3ddf35d623.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

1692 schtasks.exe
Delays execution with timeout.exe 1 IoCs
evasion

Processes:

timeout.exe

pid process

1652 timeout.exe
Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

serverstart.exe

pid process

340 serverstart.exe

pid	process
340	serverstart.exe
512	Discord.exe

pid	process
1488	cmd.exe

description	ioc	process
File created	C:\Windows\serverstart.exe	df759db973efd54d3d5b8b3ddf35d623.exe

pid	process
1692	schtasks.exe

pid	process
1652	timeout.exe

pid	process
340	serverstart.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

df759db973efd54d3d5b8b3ddf35d623.exeserverstart.exeDiscord.exe

description	pid	process
Token: SeDebugPrivilege	1724	df759db973efd54d3d5b8b3ddf35d623.exe
Token: SeDebugPrivilege	340	serverstart.exe
Token: SeDebugPrivilege	512	Discord.exe

Suspicious use of WriteProcessMemory 30 IoCs

Processes:

df759db973efd54d3d5b8b3ddf35d623.exeserverstart.execmd.execmd.exe

description	pid	process	target process
PID 1724 wrote to memory of 340	1724	df759db973efd54d3d5b8b3ddf35d623.exe	serverstart.exe
PID 1724 wrote to memory of 340	1724	df759db973efd54d3d5b8b3ddf35d623.exe	serverstart.exe
PID 1724 wrote to memory of 340	1724	df759db973efd54d3d5b8b3ddf35d623.exe	serverstart.exe
PID 1724 wrote to memory of 340	1724	df759db973efd54d3d5b8b3ddf35d623.exe	serverstart.exe
PID 1724 wrote to memory of 340	1724	df759db973efd54d3d5b8b3ddf35d623.exe	serverstart.exe
PID 1724 wrote to memory of 340	1724	df759db973efd54d3d5b8b3ddf35d623.exe	serverstart.exe
PID 1724 wrote to memory of 340	1724	df759db973efd54d3d5b8b3ddf35d623.exe	serverstart.exe
PID 340 wrote to memory of 568	340	serverstart.exe	cmd.exe
PID 340 wrote to memory of 568	340	serverstart.exe	cmd.exe
PID 340 wrote to memory of 568	340	serverstart.exe	cmd.exe
PID 340 wrote to memory of 568	340	serverstart.exe	cmd.exe
PID 340 wrote to memory of 1488	340	serverstart.exe	cmd.exe
PID 340 wrote to memory of 1488	340	serverstart.exe	cmd.exe
PID 340 wrote to memory of 1488	340	serverstart.exe	cmd.exe
PID 340 wrote to memory of 1488	340	serverstart.exe	cmd.exe
PID 568 wrote to memory of 1692	568	cmd.exe	schtasks.exe
PID 568 wrote to memory of 1692	568	cmd.exe	schtasks.exe
PID 568 wrote to memory of 1692	568	cmd.exe	schtasks.exe
PID 568 wrote to memory of 1692	568	cmd.exe	schtasks.exe
PID 1488 wrote to memory of 1652	1488	cmd.exe	timeout.exe
PID 1488 wrote to memory of 1652	1488	cmd.exe	timeout.exe
PID 1488 wrote to memory of 1652	1488	cmd.exe	timeout.exe
PID 1488 wrote to memory of 1652	1488	cmd.exe	timeout.exe
PID 1488 wrote to memory of 512	1488	cmd.exe	Discord.exe
PID 1488 wrote to memory of 512	1488	cmd.exe	Discord.exe
PID 1488 wrote to memory of 512	1488	cmd.exe	Discord.exe
PID 1488 wrote to memory of 512	1488	cmd.exe	Discord.exe
PID 1488 wrote to memory of 512	1488	cmd.exe	Discord.exe
PID 1488 wrote to memory of 512	1488	cmd.exe	Discord.exe
PID 1488 wrote to memory of 512	1488	cmd.exe	Discord.exe

C:\Users\Admin\AppData\Local\Temp\df759db973efd54d3d5b8b3ddf35d623.exe
"C:\Users\Admin\AppData\Local\Temp\df759db973efd54d3d5b8b3ddf35d623.exe"
1⤵
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1724

C:\Windows\serverstart.exe
"C:\Windows\serverstart.exe"
2⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:340

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "Discord" /tr '"C:\Users\Admin\AppData\Roaming\Discord.exe"' & exit
3⤵
- Suspicious use of WriteProcessMemory
PID:568

C:\Windows\SysWOW64\schtasks.exe
schtasks /create /f /sc onlogon /rl highest /tn "Discord" /tr '"C:\Users\Admin\AppData\Roaming\Discord.exe"'
4⤵
- Creates scheduled task(s)
PID:1692

C:\Windows\SysWOW64\cmd.exe
cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmpAF62.tmp.bat""
3⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1488

C:\Windows\SysWOW64\timeout.exe
timeout 3
4⤵
- Delays execution with timeout.exe
PID:1652

C:\Users\Admin\AppData\Roaming\Discord.exe
"C:\Users\Admin\AppData\Roaming\Discord.exe"
4⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:512

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\tmpAF62.tmp.bat
MD5
570c92146ca88cf4c62e309e098309d0

SHA1
05b4323f6e3984713cf969825664d754c83d2d9a

SHA256
47cf84033fe43793f4726e2c84c9eab2a471651ad38b4465a642ca11bd2980fa

SHA512
7df2605ade939e337337931be38113a218574ce5e63930580f4227a9012ba5c99621fe0d652db9e306c9123806f08db9a7ed93a660c9542640397ba6efeb190a

Download Submit
C:\Users\Admin\AppData\Roaming\Discord.exe
MD5
df296f530ef7511fc617555ea439a832

SHA1
f7378a53dd806c2a10821a4c8373397ea2a1015d

SHA256
6527e25f86c1902c430fc0e52769359f831365969c35fc12ef837b7b63fcc939

SHA512
1b3a530aea31847b36b0b852690b830f89189922a784ac5f839c1f66b0c01093822cd9e6bb104a3e9cba6b05ac2395e4b8b6be33f717910014d469eb41b3c277

Download Submit
C:\Users\Admin\AppData\Roaming\Discord.exe
MD5
df296f530ef7511fc617555ea439a832

SHA1
f7378a53dd806c2a10821a4c8373397ea2a1015d

SHA256
6527e25f86c1902c430fc0e52769359f831365969c35fc12ef837b7b63fcc939

SHA512
1b3a530aea31847b36b0b852690b830f89189922a784ac5f839c1f66b0c01093822cd9e6bb104a3e9cba6b05ac2395e4b8b6be33f717910014d469eb41b3c277

Download Submit
C:\Windows\serverstart.exe
MD5
df296f530ef7511fc617555ea439a832

SHA1
f7378a53dd806c2a10821a4c8373397ea2a1015d

SHA256
6527e25f86c1902c430fc0e52769359f831365969c35fc12ef837b7b63fcc939

SHA512
1b3a530aea31847b36b0b852690b830f89189922a784ac5f839c1f66b0c01093822cd9e6bb104a3e9cba6b05ac2395e4b8b6be33f717910014d469eb41b3c277

Download Submit
C:\Windows\serverstart.exe
MD5
df296f530ef7511fc617555ea439a832

SHA1
f7378a53dd806c2a10821a4c8373397ea2a1015d

SHA256
6527e25f86c1902c430fc0e52769359f831365969c35fc12ef837b7b63fcc939

SHA512
1b3a530aea31847b36b0b852690b830f89189922a784ac5f839c1f66b0c01093822cd9e6bb104a3e9cba6b05ac2395e4b8b6be33f717910014d469eb41b3c277

Download Submit
\Users\Admin\AppData\Roaming\Discord.exe
MD5
df296f530ef7511fc617555ea439a832

SHA1
f7378a53dd806c2a10821a4c8373397ea2a1015d

SHA256
6527e25f86c1902c430fc0e52769359f831365969c35fc12ef837b7b63fcc939

SHA512
1b3a530aea31847b36b0b852690b830f89189922a784ac5f839c1f66b0c01093822cd9e6bb104a3e9cba6b05ac2395e4b8b6be33f717910014d469eb41b3c277

Download Submit
memory/340-64-0x0000000000000000-mapping.dmp

Download
memory/340-67-0x00000000009B0000-0x00000000009B1000-memory.dmp

Filesize
4KB

Download
memory/340-70-0x0000000004C50000-0x0000000004C51000-memory.dmp

Filesize
4KB

Download
memory/512-83-0x0000000000C40000-0x0000000000C41000-memory.dmp

Filesize
4KB

Download
memory/512-80-0x0000000000CD0000-0x0000000000CD1000-memory.dmp

Filesize
4KB

Download
memory/512-78-0x0000000000000000-mapping.dmp

Download
memory/568-71-0x0000000000000000-mapping.dmp

Download
memory/1488-72-0x0000000000000000-mapping.dmp

Download
memory/1652-75-0x0000000000000000-mapping.dmp

Download
memory/1692-74-0x0000000000000000-mapping.dmp

Download
memory/1724-60-0x0000000000A80000-0x0000000000A81000-memory.dmp

Filesize
4KB

Download
memory/1724-63-0x0000000004CA0000-0x0000000004CA1000-memory.dmp

Filesize
4KB

Download
memory/1724-62-0x0000000075161000-0x0000000075163000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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