asyncrat | 92f2a11dbb3411bb3d30846bd6eec0b6411d5e03bf579c7f9d81c0fc649f1471

General

Target

92f2a11dbb3411bb3d30846bd6eec0b6411d5e03bf579c7f9d81c0fc649f1471.exe
Size

798KB
MD5

e34eb26af335bd435c40f82b3f8b48d0
SHA1

e4b7b90c3cdb4e3db62544d0117454def485964c
SHA256

92f2a11dbb3411bb3d30846bd6eec0b6411d5e03bf579c7f9d81c0fc649f1471
SHA512

922bd73e1797ece2979849a17a3bb788dc8316cab6fdf9f354fc6059e517c8a62d0d93c365c16e9fc8fef456f212213f7861cd3ed13c08a51cbcf63c816f58fd
SSDEEP

12288:mLkcoxg7v3qnC11ErwIhh0F4qwUgUny5QVc42F+DdfM:EfmMv6Ckr7Mny5QVF0EdE

Score

10^/10

asyncrat logs discovery rat

Malware Config

Extracted

Family

asyncrat

Version

Venom RAT + HVNC + Stealer + Grabber v6.0.3

Botnet

LOGS

C2

72.11.142.133:4449

Mutex

orkxnmmqoswplswmucl

Attributes

delay
1
install
false
install_folder
%AppData%

aes.plain

Signatures

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

Drops startup file 1 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\bankrupture.vbs	bankrupture.exe

Executes dropped EXE 1 IoCs

pid	Process
2388	bankrupture.exe

Loads dropped DLL 1 IoCs

pid	Process
2252	92f2a11dbb3411bb3d30846bd6eec0b6411d5e03bf579c7f9d81c0fc649f1471.exe

AutoIT Executable 1 IoCs

AutoIT scripts compiled to PE executables.

resource	yara_rule
behavioral1/files/0x00030000000178b0-4.dat	autoit_exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2388 set thread context of 2772	2388	bankrupture.exe	30

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 3 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	92f2a11dbb3411bb3d30846bd6eec0b6411d5e03bf579c7f9d81c0fc649f1471.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	bankrupture.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegSvcs.exe

Suspicious behavior: EnumeratesProcesses 32 IoCs

pid	Process
2772	RegSvcs.exe
2772	RegSvcs.exe
2772	RegSvcs.exe
2772	RegSvcs.exe
2772	RegSvcs.exe
2772	RegSvcs.exe
2772	RegSvcs.exe
2772	RegSvcs.exe
2772	RegSvcs.exe
2772	RegSvcs.exe
2772	RegSvcs.exe
2772	RegSvcs.exe
2772	RegSvcs.exe
2772	RegSvcs.exe
2772	RegSvcs.exe
2772	RegSvcs.exe
2772	RegSvcs.exe
2772	RegSvcs.exe
2772	RegSvcs.exe
2772	RegSvcs.exe
2772	RegSvcs.exe
2772	RegSvcs.exe
2772	RegSvcs.exe
2772	RegSvcs.exe
2772	RegSvcs.exe
2772	RegSvcs.exe
2772	RegSvcs.exe
2772	RegSvcs.exe
2772	RegSvcs.exe
2772	RegSvcs.exe
2772	RegSvcs.exe
2772	RegSvcs.exe

Suspicious behavior: MapViewOfSection 2 IoCs

pid	Process
2388	bankrupture.exe
2388	bankrupture.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2772	RegSvcs.exe
Token: SeDebugPrivilege	2772	RegSvcs.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2772	RegSvcs.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2252 wrote to memory of 2388	2252	92f2a11dbb3411bb3d30846bd6eec0b6411d5e03bf579c7f9d81c0fc649f1471.exe	29
PID 2252 wrote to memory of 2388	2252	92f2a11dbb3411bb3d30846bd6eec0b6411d5e03bf579c7f9d81c0fc649f1471.exe	29
PID 2252 wrote to memory of 2388	2252	92f2a11dbb3411bb3d30846bd6eec0b6411d5e03bf579c7f9d81c0fc649f1471.exe	29
PID 2252 wrote to memory of 2388	2252	92f2a11dbb3411bb3d30846bd6eec0b6411d5e03bf579c7f9d81c0fc649f1471.exe	29
PID 2388 wrote to memory of 2772	2388	bankrupture.exe	30
PID 2388 wrote to memory of 2772	2388	bankrupture.exe	30
PID 2388 wrote to memory of 2772	2388	bankrupture.exe	30
PID 2388 wrote to memory of 2772	2388	bankrupture.exe	30
PID 2388 wrote to memory of 2772	2388	bankrupture.exe	30
PID 2388 wrote to memory of 2772	2388	bankrupture.exe	30
PID 2388 wrote to memory of 2772	2388	bankrupture.exe	30
PID 2388 wrote to memory of 2772	2388	bankrupture.exe	30

C:\Users\Admin\AppData\Local\Temp\92f2a11dbb3411bb3d30846bd6eec0b6411d5e03bf579c7f9d81c0fc649f1471.exe
"C:\Users\Admin\AppData\Local\Temp\92f2a11dbb3411bb3d30846bd6eec0b6411d5e03bf579c7f9d81c0fc649f1471.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2252
- C:\Users\Admin\AppData\Local\overfertility\bankrupture.exe
  "C:\Users\Admin\AppData\Local\Temp\92f2a11dbb3411bb3d30846bd6eec0b6411d5e03bf579c7f9d81c0fc649f1471.exe"
  2⤵
  - Drops startup file
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of WriteProcessMemory
  PID:2388
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
    "C:\Users\Admin\AppData\Local\Temp\92f2a11dbb3411bb3d30846bd6eec0b6411d5e03bf579c7f9d81c0fc649f1471.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of SetWindowsHookEx
    PID:2772

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

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

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Downloads

C:\Users\Admin\AppData\Local\Temp\CabC802.tmp

Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

Download Submit
C:\Users\Admin\AppData\Local\Temp\Lymnaeidae

Filesize
74KB

MD5
010f46365a1d87f1c36a0af5e83aac75

SHA1
921f91024cff8f9398a3b8abd25cb96d74f14dc0

SHA256
9221e439d557cf7163d732e01d35a3ce29000826afbd8ea72b94bd26c54d644e

SHA512
8e1a19a8993b5adb3ccd89649ebd5378b30a1f99b2d8a212473d37fac8dce8f0d6055617aa5d1ee66ad5d6454fab54e894be2370b8d45e0eba3e62dbd354afdd

Download Submit
C:\Users\Admin\AppData\Local\Temp\TarDFBA.tmp

Filesize
181KB

MD5
4ea6026cf93ec6338144661bf1202cd1

SHA1
a1dec9044f750ad887935a01430bf49322fbdcb7

SHA256
8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8

SHA512
6c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b

Download Submit
\Users\Admin\AppData\Local\overfertility\bankrupture.exe

Filesize
798KB

MD5
e34eb26af335bd435c40f82b3f8b48d0

SHA1
e4b7b90c3cdb4e3db62544d0117454def485964c

SHA256
92f2a11dbb3411bb3d30846bd6eec0b6411d5e03bf579c7f9d81c0fc649f1471

SHA512
922bd73e1797ece2979849a17a3bb788dc8316cab6fdf9f354fc6059e517c8a62d0d93c365c16e9fc8fef456f212213f7861cd3ed13c08a51cbcf63c816f58fd

Download Submit
memory/2252-2-0x0000000002F20000-0x0000000003120000-memory.dmp

Filesize
2.0MB

Download
memory/2388-12-0x00000000036D0000-0x00000000038D0000-memory.dmp

Filesize
2.0MB

Download
memory/2772-24-0x000000007441E000-0x000000007441F000-memory.dmp

Filesize
4KB

Download
memory/2772-20-0x0000000000090000-0x00000000000A8000-memory.dmp

Filesize
96KB

Download
memory/2772-23-0x0000000000090000-0x00000000000A8000-memory.dmp

Filesize
96KB

Download
memory/2772-26-0x0000000074410000-0x0000000074AFE000-memory.dmp

Filesize
6.9MB

Download
memory/2772-34-0x0000000074410000-0x0000000074AFE000-memory.dmp

Filesize
6.9MB

Download
memory/2772-14-0x0000000000090000-0x00000000000A8000-memory.dmp

Filesize
96KB

Download
memory/2772-44-0x000000007441E000-0x000000007441F000-memory.dmp

Filesize
4KB

Download
memory/2772-45-0x0000000074410000-0x0000000074AFE000-memory.dmp

Filesize
6.9MB

Download
memory/2772-16-0x0000000000090000-0x00000000000A8000-memory.dmp

Filesize
96KB

Download
memory/2772-64-0x0000000074410000-0x0000000074AFE000-memory.dmp

Filesize
6.9MB

Download

Analysis

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