asyncrat | e40dd437b2cad30c5fa480ce932710e4121630d9d48aba6c8527a3d6f006ea21

General

Target

f569525615c7585c5e54720d11bc1ab7_JaffaCakes118.exe
Size

414KB
MD5

f569525615c7585c5e54720d11bc1ab7
SHA1

c0f6869db5365d4be5c7f381f10175f18eb9b95c
SHA256

e40dd437b2cad30c5fa480ce932710e4121630d9d48aba6c8527a3d6f006ea21
SHA512

603cac841e9168d3ac7e4502d1f3f481e624854a6fe4265a53333b0adcafc1daaaee91e0694d6a82c2c061a108a8d71f371c7b1abd6ee1d9e76c437c96bcbed3
SSDEEP

3072:0D32GhNvy+CFkUtzqJUtIFwl2BaxTXnY+nVugK0ia/Ch501GB2qwUxe0:U2GhN6bFkUtmloxBVvJK50kgqwU

Score

10^/10

asyncrat default discovery rat

Malware Config

Extracted

Family

asyncrat

Version

0.5.7B

Botnet

Default

C2

pornox.ddns.net:5552

Mutex

ok

Attributes

delay
3
install
true
install_file
WindowsShortcut.exe
install_folder
%Temp%

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
behavioral1/files/0x0008000000016875-5.dat	family_asyncrat

Executes dropped EXE 2 IoCs

pid	Process
1940	WindowsSecurity.bat
2780	WindowsShortcut.exe

Loads dropped DLL 2 IoCs

pid	Process
108	f569525615c7585c5e54720d11bc1ab7_JaffaCakes118.exe
2764	cmd.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 7 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	f569525615c7585c5e54720d11bc1ab7_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	WindowsSecurity.bat
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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	WindowsShortcut.exe

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
2904	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
2864	schtasks.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
1940	WindowsSecurity.bat
1940	WindowsSecurity.bat
1940	WindowsSecurity.bat

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1940	WindowsSecurity.bat
Token: SeDebugPrivilege	2780	WindowsShortcut.exe

Suspicious use of WriteProcessMemory 24 IoCs

description	pid	Process	procid_target
PID 108 wrote to memory of 1940	108	f569525615c7585c5e54720d11bc1ab7_JaffaCakes118.exe	30
PID 108 wrote to memory of 1940	108	f569525615c7585c5e54720d11bc1ab7_JaffaCakes118.exe	30
PID 108 wrote to memory of 1940	108	f569525615c7585c5e54720d11bc1ab7_JaffaCakes118.exe	30
PID 108 wrote to memory of 1940	108	f569525615c7585c5e54720d11bc1ab7_JaffaCakes118.exe	30
PID 1940 wrote to memory of 320	1940	WindowsSecurity.bat	32
PID 1940 wrote to memory of 320	1940	WindowsSecurity.bat	32
PID 1940 wrote to memory of 320	1940	WindowsSecurity.bat	32
PID 1940 wrote to memory of 320	1940	WindowsSecurity.bat	32
PID 1940 wrote to memory of 2764	1940	WindowsSecurity.bat	34
PID 1940 wrote to memory of 2764	1940	WindowsSecurity.bat	34
PID 1940 wrote to memory of 2764	1940	WindowsSecurity.bat	34
PID 1940 wrote to memory of 2764	1940	WindowsSecurity.bat	34
PID 320 wrote to memory of 2864	320	cmd.exe	36
PID 320 wrote to memory of 2864	320	cmd.exe	36
PID 320 wrote to memory of 2864	320	cmd.exe	36
PID 320 wrote to memory of 2864	320	cmd.exe	36
PID 2764 wrote to memory of 2904	2764	cmd.exe	37
PID 2764 wrote to memory of 2904	2764	cmd.exe	37
PID 2764 wrote to memory of 2904	2764	cmd.exe	37
PID 2764 wrote to memory of 2904	2764	cmd.exe	37
PID 2764 wrote to memory of 2780	2764	cmd.exe	38
PID 2764 wrote to memory of 2780	2764	cmd.exe	38
PID 2764 wrote to memory of 2780	2764	cmd.exe	38
PID 2764 wrote to memory of 2780	2764	cmd.exe	38

C:\Users\Admin\AppData\Local\Temp\f569525615c7585c5e54720d11bc1ab7_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\f569525615c7585c5e54720d11bc1ab7_JaffaCakes118.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:108
- C:\Users\Admin\AppData\Local\Temp\WindowsSecurity.bat
  "C:\Users\Admin\AppData\Local\Temp\WindowsSecurity.bat"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1940
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "WindowsShortcut" /tr '"C:\Users\Admin\AppData\Local\Temp\WindowsShortcut.exe"' & exit
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:320
  - - C:\Windows\SysWOW64\schtasks.exe
      schtasks /create /f /sc onlogon /rl highest /tn "WindowsShortcut" /tr '"C:\Users\Admin\AppData\Local\Temp\WindowsShortcut.exe"'
      4⤵
      System Location Discovery: System Language Discovery
      Scheduled Task/Job: Scheduled Task
      PID:2864
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmpCF31.tmp.bat""
    3⤵
    - Loads dropped DLL
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2764
  - - C:\Windows\SysWOW64\timeout.exe
      timeout 3
      4⤵
      System Location Discovery: System Language Discovery
      Delays execution with timeout.exe
      PID:2904
  - - C:\Users\Admin\AppData\Local\Temp\WindowsShortcut.exe
      "C:\Users\Admin\AppData\Local\Temp\WindowsShortcut.exe"
      4⤵
      Executes dropped EXE
      System Location Discovery: System Language Discovery
      Suspicious use of AdjustPrivilegeToken
      PID:2780

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\tmpCF31.tmp.bat

Filesize
162B

MD5
5701b9ba457438a9d031952c241c6682

SHA1
4c58e1e42ba04da7bc78915a8913d02ec08723ad

SHA256
edfd0b613c549920fedbde4bf8c45487ff740fdf9295ee02899c66c7b9a92391

SHA512
3d1ee623c606dae4b74050427126d2d43e59d90fa56c1287ba951b04c307cdd6b76e91cf0457498dd6d7641c7b7d2325acabf9dade5cf681e028e8b595498c26

Download Submit
\Users\Admin\AppData\Local\Temp\WindowsSecurity.bat

Filesize
47KB

MD5
2c24055f43f371dbf0e7a3ff2c43dfd4

SHA1
bf7625ce4c23aabd0c75a92dbbc0d5fe75d138c2

SHA256
6ddf626b13e883ad07c72ff1f135015d47ff81dc82e0c9759690d4448636178d

SHA512
63585a42f3b96f72cb591994c636242a4858483d010b1d71a02f440167aee3a9a17007d035c77dcc7f6f4cb341d8a766b62eb69651504236b2c594fca602250a

Download Submit
memory/108-0-0x000000007434E000-0x000000007434F000-memory.dmp

Filesize
4KB

Download
memory/108-1-0x0000000000DA0000-0x0000000000E0C000-memory.dmp

Filesize
432KB

Download
memory/108-2-0x0000000074340000-0x0000000074A2E000-memory.dmp

Filesize
6.9MB

Download
memory/108-27-0x000000007434E000-0x000000007434F000-memory.dmp

Filesize
4KB

Download
memory/108-28-0x0000000074340000-0x0000000074A2E000-memory.dmp

Filesize
6.9MB

Download
memory/1940-10-0x0000000000EC0000-0x0000000000ED2000-memory.dmp

Filesize
72KB

Download
memory/1940-11-0x0000000074340000-0x0000000074A2E000-memory.dmp

Filesize
6.9MB

Download
memory/1940-12-0x0000000074340000-0x0000000074A2E000-memory.dmp

Filesize
6.9MB

Download
memory/1940-21-0x0000000074340000-0x0000000074A2E000-memory.dmp

Filesize
6.9MB

Download
memory/2780-26-0x00000000012D0000-0x00000000012E2000-memory.dmp

Filesize
72KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads