asyncrat | 26b9ff2aea0f6bb6e98627a46effb1d6f0c72908fc2fa4985a72a4d199ac0870

General

Target

04d0649b4bfa1dfeae3a8c86453397a3.exe
Size

45KB
MD5

04d0649b4bfa1dfeae3a8c86453397a3
SHA1

f47a6585df4bbb264017cacbb11a2d0e88fcea84
SHA256

26b9ff2aea0f6bb6e98627a46effb1d6f0c72908fc2fa4985a72a4d199ac0870
SHA512

e2c7ab0d8b80f3b2ae4369177d654011b75cd288e855724cee2dd64af45dff81e12d5a5ba72c075c6d48291f79b83a3cf120c068c90f01ddf36e5ae88901ab68

Score

10^/10

asyncrat rat

Malware Config

Extracted

Family

asyncrat

Version

0.5.7B

C2

8.tcp.ngrok.io:18318

Mutex

AsyncMutex_6SI8OkPnk

Attributes

aes_key
v4WrWlQmMr9Nbg46PqpYZ1ZQie6iSq6f
anti_detection
false
autorun
true
bdos
false
delay
Default
host
8.tcp.ngrok.io
hwid
3
install_file
install_folder
%AppData%
mutex
AsyncMutex_6SI8OkPnk
pastebin_config
null
port
18318
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
C:\Users\Admin\AppData\Roaming\svchost.exe	asyncrat
\Users\Admin\AppData\Roaming\svchost.exe	asyncrat
C:\Users\Admin\AppData\Roaming\svchost.exe	asyncrat

Executes dropped EXE 1 IoCs

Processes:

svchost.exe

pid process

268 svchost.exe
Loads dropped DLL 1 IoCs

Processes:

cmd.exe

pid process

316 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

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

Processes:

timeout.exe

pid process

1228 timeout.exe
Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

04d0649b4bfa1dfeae3a8c86453397a3.exe

pid process

1072 04d0649b4bfa1dfeae3a8c86453397a3.exe
1072 04d0649b4bfa1dfeae3a8c86453397a3.exe
1072 04d0649b4bfa1dfeae3a8c86453397a3.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

04d0649b4bfa1dfeae3a8c86453397a3.exesvchost.exe

description pid process

Token: SeDebugPrivilege 1072 04d0649b4bfa1dfeae3a8c86453397a3.exe
Token: SeDebugPrivilege 268 svchost.exe

pid	process
268	svchost.exe

pid	process
316	cmd.exe

pid	process
336	schtasks.exe

pid	process
1228	timeout.exe

pid	process
1072	04d0649b4bfa1dfeae3a8c86453397a3.exe
1072	04d0649b4bfa1dfeae3a8c86453397a3.exe
1072	04d0649b4bfa1dfeae3a8c86453397a3.exe

description	pid	process
Token: SeDebugPrivilege	1072	04d0649b4bfa1dfeae3a8c86453397a3.exe
Token: SeDebugPrivilege	268	svchost.exe

Suspicious use of WriteProcessMemory 20 IoCs

Processes:

04d0649b4bfa1dfeae3a8c86453397a3.execmd.execmd.exe

description	pid	process	target process
PID 1072 wrote to memory of 1580	1072	04d0649b4bfa1dfeae3a8c86453397a3.exe	cmd.exe
PID 1072 wrote to memory of 1580	1072	04d0649b4bfa1dfeae3a8c86453397a3.exe	cmd.exe
PID 1072 wrote to memory of 1580	1072	04d0649b4bfa1dfeae3a8c86453397a3.exe	cmd.exe
PID 1072 wrote to memory of 1580	1072	04d0649b4bfa1dfeae3a8c86453397a3.exe	cmd.exe
PID 1072 wrote to memory of 316	1072	04d0649b4bfa1dfeae3a8c86453397a3.exe	cmd.exe
PID 1072 wrote to memory of 316	1072	04d0649b4bfa1dfeae3a8c86453397a3.exe	cmd.exe
PID 1072 wrote to memory of 316	1072	04d0649b4bfa1dfeae3a8c86453397a3.exe	cmd.exe
PID 1072 wrote to memory of 316	1072	04d0649b4bfa1dfeae3a8c86453397a3.exe	cmd.exe
PID 1580 wrote to memory of 336	1580	cmd.exe	schtasks.exe
PID 1580 wrote to memory of 336	1580	cmd.exe	schtasks.exe
PID 1580 wrote to memory of 336	1580	cmd.exe	schtasks.exe
PID 1580 wrote to memory of 336	1580	cmd.exe	schtasks.exe
PID 316 wrote to memory of 1228	316	cmd.exe	timeout.exe
PID 316 wrote to memory of 1228	316	cmd.exe	timeout.exe
PID 316 wrote to memory of 1228	316	cmd.exe	timeout.exe
PID 316 wrote to memory of 1228	316	cmd.exe	timeout.exe
PID 316 wrote to memory of 268	316	cmd.exe	svchost.exe
PID 316 wrote to memory of 268	316	cmd.exe	svchost.exe
PID 316 wrote to memory of 268	316	cmd.exe	svchost.exe
PID 316 wrote to memory of 268	316	cmd.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\04d0649b4bfa1dfeae3a8c86453397a3.exe
"C:\Users\Admin\AppData\Local\Temp\04d0649b4bfa1dfeae3a8c86453397a3.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1072

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "svchost" /tr '"C:\Users\Admin\AppData\Roaming\svchost.exe"' & exit
2⤵
- Suspicious use of WriteProcessMemory
PID:1580

C:\Windows\SysWOW64\schtasks.exe
schtasks /create /f /sc onlogon /rl highest /tn "svchost" /tr '"C:\Users\Admin\AppData\Roaming\svchost.exe"'
3⤵
- Creates scheduled task(s)
PID:336

C:\Windows\SysWOW64\cmd.exe
cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmp2156.tmp.bat""
2⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:316

C:\Windows\SysWOW64\timeout.exe
timeout 3
3⤵
- Delays execution with timeout.exe
PID:1228

C:\Users\Admin\AppData\Roaming\svchost.exe
"C:\Users\Admin\AppData\Roaming\svchost.exe"
3⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:268

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\tmp2156.tmp.bat
MD5
5dec304e8ade63a381167e584110f603

SHA1
cdc86028fd843623a28b6bc49425da36bde5dd81

SHA256
1461f36b918f7cfe02c5d8b49466347d27b88e401532aeb763fdd1451d1cf375

SHA512
81a61b804fa15dbe3e2721a0a56658aaaeba090f236a8b2901b9f85938ca5e3dfb135f23331e1c0138c8fa1c8f4795e032142bc7ea783894ede049b2bb15b0e7

Download Submit
C:\Users\Admin\AppData\Roaming\svchost.exe
MD5
04d0649b4bfa1dfeae3a8c86453397a3

SHA1
f47a6585df4bbb264017cacbb11a2d0e88fcea84

SHA256
26b9ff2aea0f6bb6e98627a46effb1d6f0c72908fc2fa4985a72a4d199ac0870

SHA512
e2c7ab0d8b80f3b2ae4369177d654011b75cd288e855724cee2dd64af45dff81e12d5a5ba72c075c6d48291f79b83a3cf120c068c90f01ddf36e5ae88901ab68

Download Submit
C:\Users\Admin\AppData\Roaming\svchost.exe
MD5
04d0649b4bfa1dfeae3a8c86453397a3

SHA1
f47a6585df4bbb264017cacbb11a2d0e88fcea84

SHA256
26b9ff2aea0f6bb6e98627a46effb1d6f0c72908fc2fa4985a72a4d199ac0870

SHA512
e2c7ab0d8b80f3b2ae4369177d654011b75cd288e855724cee2dd64af45dff81e12d5a5ba72c075c6d48291f79b83a3cf120c068c90f01ddf36e5ae88901ab68

Download Submit
\Users\Admin\AppData\Roaming\svchost.exe
MD5
04d0649b4bfa1dfeae3a8c86453397a3

SHA1
f47a6585df4bbb264017cacbb11a2d0e88fcea84

SHA256
26b9ff2aea0f6bb6e98627a46effb1d6f0c72908fc2fa4985a72a4d199ac0870

SHA512
e2c7ab0d8b80f3b2ae4369177d654011b75cd288e855724cee2dd64af45dff81e12d5a5ba72c075c6d48291f79b83a3cf120c068c90f01ddf36e5ae88901ab68

Download Submit
memory/268-71-0x0000000000000000-mapping.dmp

Download
memory/268-73-0x0000000001200000-0x0000000001201000-memory.dmp

Filesize
4KB

Download
memory/268-76-0x0000000004D30000-0x0000000004D31000-memory.dmp

Filesize
4KB

Download
memory/316-65-0x0000000000000000-mapping.dmp

Download
memory/336-66-0x0000000000000000-mapping.dmp

Download
memory/1072-63-0x0000000004D10000-0x0000000004D11000-memory.dmp

Filesize
4KB

Download
memory/1072-60-0x0000000000D10000-0x0000000000D11000-memory.dmp

Filesize
4KB

Download
memory/1072-62-0x0000000075411000-0x0000000075413000-memory.dmp

Filesize
8KB

Download
memory/1228-68-0x0000000000000000-mapping.dmp

Download
memory/1580-64-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads