asyncrat | fbd85258618d241a24904b372d95d4db16fa344e555ebdea2fe59e4c506194c0

General

Target

lkklnsgtnsdfgdfgsdfg.exe
Size

47KB
MD5

f6dac35d571337de0dcbfd8488519383
SHA1

f7807ad2b9c086889e492a3ff8e9a47df0d9ee19
SHA256

fbd85258618d241a24904b372d95d4db16fa344e555ebdea2fe59e4c506194c0
SHA512

5f26dec175882f1740e405fa7129043a705d47de295547d4ce0a6047255b77994e398f26aa552b0ae119785749ae02f6339eadc97b5fc9c3e28cb3a1b60971c1
SSDEEP

768:DuQKNTREhzxrWUXrm5mo2q7ZwuoFI0rxfvR6fPIy840bMUCLDCUtdv8ewBkd6WRz:DuQKNTR+W2ZuojxfvR3y8zbpZU38eO0Z

Score

10^/10

asyncrat default discovery rat

Malware Config

Extracted

Family

asyncrat

Version

0.5.8

Botnet

Default

C2

127.0.0.1:6606

127.0.0.1:7707

127.0.0.1:8808

127.0.0.1:61882

rahyufgsaf-61882.portmap.host:6606

rahyufgsaf-61882.portmap.host:7707

rahyufgsaf-61882.portmap.host:8808

rahyufgsaf-61882.portmap.host:61882

Mutex

jQF9EeB2cbGS

Attributes

delay
3
install
true
install_file
roar.exe
install_folder
%AppData%

aes.plain

Signatures

AsyncRat
AsyncRAT is designed to remotely monitor and control other computers written in C#.
rat asyncrat
Asyncrat family
asyncrat

Async RAT payload 1 IoCs

rat

resource	yara_rule
behavioral2/files/0x001a00000002abcd-12.dat	family_asyncrat

Executes dropped EXE 1 IoCs

pid	Process
6000	roar.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 6 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	roar.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	lkklnsgtnsdfgdfgsdfg.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	timeout.exe

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
3672	timeout.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
2900	schtasks.exe

Suspicious behavior: EnumeratesProcesses 19 IoCs

pid	Process
3500	lkklnsgtnsdfgdfgsdfg.exe
3500	lkklnsgtnsdfgdfgsdfg.exe
3500	lkklnsgtnsdfgdfgsdfg.exe
3500	lkklnsgtnsdfgdfgsdfg.exe
3500	lkklnsgtnsdfgdfgsdfg.exe
3500	lkklnsgtnsdfgdfgsdfg.exe
3500	lkklnsgtnsdfgdfgsdfg.exe
3500	lkklnsgtnsdfgdfgsdfg.exe
3500	lkklnsgtnsdfgdfgsdfg.exe
3500	lkklnsgtnsdfgdfgsdfg.exe
3500	lkklnsgtnsdfgdfgsdfg.exe
3500	lkklnsgtnsdfgdfgsdfg.exe
3500	lkklnsgtnsdfgdfgsdfg.exe
3500	lkklnsgtnsdfgdfgsdfg.exe
3500	lkklnsgtnsdfgdfgsdfg.exe
3500	lkklnsgtnsdfgdfgsdfg.exe
3500	lkklnsgtnsdfgdfgsdfg.exe
3500	lkklnsgtnsdfgdfgsdfg.exe
3500	lkklnsgtnsdfgdfgsdfg.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3500	lkklnsgtnsdfgdfgsdfg.exe
Token: SeDebugPrivilege	6000	roar.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 3500 wrote to memory of 2492	3500	lkklnsgtnsdfgdfgsdfg.exe	80
PID 3500 wrote to memory of 2492	3500	lkklnsgtnsdfgdfgsdfg.exe	80
PID 3500 wrote to memory of 2492	3500	lkklnsgtnsdfgdfgsdfg.exe	80
PID 3500 wrote to memory of 4332	3500	lkklnsgtnsdfgdfgsdfg.exe	82
PID 3500 wrote to memory of 4332	3500	lkklnsgtnsdfgdfgsdfg.exe	82
PID 3500 wrote to memory of 4332	3500	lkklnsgtnsdfgdfgsdfg.exe	82
PID 2492 wrote to memory of 2900	2492	cmd.exe	84
PID 2492 wrote to memory of 2900	2492	cmd.exe	84
PID 2492 wrote to memory of 2900	2492	cmd.exe	84
PID 4332 wrote to memory of 3672	4332	cmd.exe	85
PID 4332 wrote to memory of 3672	4332	cmd.exe	85
PID 4332 wrote to memory of 3672	4332	cmd.exe	85
PID 4332 wrote to memory of 6000	4332	cmd.exe	86
PID 4332 wrote to memory of 6000	4332	cmd.exe	86
PID 4332 wrote to memory of 6000	4332	cmd.exe	86

C:\Users\Admin\AppData\Local\Temp\lkklnsgtnsdfgdfgsdfg.exe
"C:\Users\Admin\AppData\Local\Temp\lkklnsgtnsdfgdfgsdfg.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3500
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "roar" /tr '"C:\Users\Admin\AppData\Roaming\roar.exe"' & exit
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2492
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "roar" /tr '"C:\Users\Admin\AppData\Roaming\roar.exe"'
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:2900
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp9839.tmp.bat""
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4332
- - C:\Windows\SysWOW64\timeout.exe
    timeout 3
    3⤵
    - System Location Discovery: System Language Discovery
    - Delays execution with timeout.exe
    PID:3672
- - C:\Users\Admin\AppData\Roaming\roar.exe
    "C:\Users\Admin\AppData\Roaming\roar.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of AdjustPrivilegeToken
    PID:6000

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\tmp9839.tmp.bat

Filesize
148B

MD5
7eb215ccb319b5efaf2c0b88a596aecd

SHA1
809507bbde5a386eb1aa8221e61f77046ad5a703

SHA256
42027eb57fabcc85d9e85a14d126c893da14042ef760effe7786838e896e70f4

SHA512
5bf39f1d9640a8a8217711dd9a8fe9cb8ced53d42b749f59a318304e0c3d90c8310e1293c0852e7962a41504e24b7a5b5f4f2a9327c77cf58c303a01c2186531

Download Submit
C:\Users\Admin\AppData\Roaming\roar.exe

Filesize
47KB

MD5
f6dac35d571337de0dcbfd8488519383

SHA1
f7807ad2b9c086889e492a3ff8e9a47df0d9ee19

SHA256
fbd85258618d241a24904b372d95d4db16fa344e555ebdea2fe59e4c506194c0

SHA512
5f26dec175882f1740e405fa7129043a705d47de295547d4ce0a6047255b77994e398f26aa552b0ae119785749ae02f6339eadc97b5fc9c3e28cb3a1b60971c1

Download Submit
memory/3500-0-0x000000007498E000-0x000000007498F000-memory.dmp

Filesize
4KB

Download
memory/3500-1-0x00000000000E0000-0x00000000000F2000-memory.dmp

Filesize
72KB

Download
memory/3500-2-0x0000000074980000-0x0000000075131000-memory.dmp

Filesize
7.7MB

Download
memory/3500-3-0x0000000004B70000-0x0000000004BD6000-memory.dmp

Filesize
408KB

Download
memory/3500-4-0x0000000004FD0000-0x000000000506C000-memory.dmp

Filesize
624KB

Download
memory/3500-10-0x0000000074980000-0x0000000075131000-memory.dmp

Filesize
7.7MB

Download
memory/6000-14-0x0000000074980000-0x0000000075131000-memory.dmp

Filesize
7.7MB

Download
memory/6000-15-0x0000000074980000-0x0000000075131000-memory.dmp

Filesize
7.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads