asyncrat | 92f2a11dbb3411bb3d30846bd6eec0b6411d5e03bf579c7f9d81c0fc649f1471

Reason

Machine shutdown

General

Target

92f2a11dbb3411bb3d30846bd6eec0b6411d5e03bf579c7f9d81c0fc649f1471N.exe
Size

798KB
MD5

e34eb26af335bd435c40f82b3f8b48d0
SHA1

e4b7b90c3cdb4e3db62544d0117454def485964c
SHA256

92f2a11dbb3411bb3d30846bd6eec0b6411d5e03bf579c7f9d81c0fc649f1471
SHA512

922bd73e1797ece2979849a17a3bb788dc8316cab6fdf9f354fc6059e517c8a62d0d93c365c16e9fc8fef456f212213f7861cd3ed13c08a51cbcf63c816f58fd
SSDEEP

12288:mLkcoxg7v3qnC11ErwIhh0F4qwUgUny5QVc42F+DdfM:EfmMv6Ckr7Mny5QVF0EdE

Score

10^/10

asyncrat stormkitty logs discovery rat stealer

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
StormKitty
StormKitty is an open source info stealer written in C#.
stealer stormkitty

StormKitty payload 1 IoCs

resource	yara_rule
behavioral2/memory/704-27-0x0000000006FF0000-0x0000000007112000-memory.dmp	family_stormkitty

VenomRAT 1 IoCs

Detects VenomRAT.

rat

resource	yara_rule
behavioral2/memory/704-12-0x0000000000400000-0x0000000000418000-memory.dmp	VenomRAT

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
2088	bankrupture.exe

AutoIT Executable 1 IoCs

AutoIT scripts compiled to PE executables.

resource	yara_rule
behavioral2/files/0x0008000000023c79-5.dat	autoit_exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2088 set thread context of 704	2088	bankrupture.exe	87

Browser Information Discovery 1 TTPs
Enumerate browser information.
discovery

Browser Information Discovery
T1217
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4432	704	WerFault.exe	87

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	92f2a11dbb3411bb3d30846bd6eec0b6411d5e03bf579c7f9d81c0fc649f1471N.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 3 IoCs

pid	Process
704	RegSvcs.exe
704	RegSvcs.exe
704	RegSvcs.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
2088	bankrupture.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	704	RegSvcs.exe
Token: SeDebugPrivilege	704	RegSvcs.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
704	RegSvcs.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2800 wrote to memory of 2088	2800	92f2a11dbb3411bb3d30846bd6eec0b6411d5e03bf579c7f9d81c0fc649f1471N.exe	86
PID 2800 wrote to memory of 2088	2800	92f2a11dbb3411bb3d30846bd6eec0b6411d5e03bf579c7f9d81c0fc649f1471N.exe	86
PID 2800 wrote to memory of 2088	2800	92f2a11dbb3411bb3d30846bd6eec0b6411d5e03bf579c7f9d81c0fc649f1471N.exe	86
PID 2088 wrote to memory of 704	2088	bankrupture.exe	87
PID 2088 wrote to memory of 704	2088	bankrupture.exe	87
PID 2088 wrote to memory of 704	2088	bankrupture.exe	87
PID 2088 wrote to memory of 704	2088	bankrupture.exe	87

C:\Users\Admin\AppData\Local\Temp\92f2a11dbb3411bb3d30846bd6eec0b6411d5e03bf579c7f9d81c0fc649f1471N.exe
"C:\Users\Admin\AppData\Local\Temp\92f2a11dbb3411bb3d30846bd6eec0b6411d5e03bf579c7f9d81c0fc649f1471N.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2800
- C:\Users\Admin\AppData\Local\overfertility\bankrupture.exe
  "C:\Users\Admin\AppData\Local\Temp\92f2a11dbb3411bb3d30846bd6eec0b6411d5e03bf579c7f9d81c0fc649f1471N.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:2088
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
    "C:\Users\Admin\AppData\Local\Temp\92f2a11dbb3411bb3d30846bd6eec0b6411d5e03bf579c7f9d81c0fc649f1471N.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of SetWindowsHookEx
    PID:704
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 704 -s 2360
      4⤵
      Program crash
      PID:4432

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 704 -ip 704
1⤵
PID:3864

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Browser Information Discovery

1

T1217

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\Lymnaeidae

Filesize
74KB

MD5
010f46365a1d87f1c36a0af5e83aac75

SHA1
921f91024cff8f9398a3b8abd25cb96d74f14dc0

SHA256
9221e439d557cf7163d732e01d35a3ce29000826afbd8ea72b94bd26c54d644e

SHA512
8e1a19a8993b5adb3ccd89649ebd5378b30a1f99b2d8a212473d37fac8dce8f0d6055617aa5d1ee66ad5d6454fab54e894be2370b8d45e0eba3e62dbd354afdd

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

Filesize
798KB

MD5
e34eb26af335bd435c40f82b3f8b48d0

SHA1
e4b7b90c3cdb4e3db62544d0117454def485964c

SHA256
92f2a11dbb3411bb3d30846bd6eec0b6411d5e03bf579c7f9d81c0fc649f1471

SHA512
922bd73e1797ece2979849a17a3bb788dc8316cab6fdf9f354fc6059e517c8a62d0d93c365c16e9fc8fef456f212213f7861cd3ed13c08a51cbcf63c816f58fd

Download Submit
memory/704-19-0x0000000005510000-0x000000000551A000-memory.dmp

Filesize
40KB

Download
memory/704-20-0x00000000062D0000-0x000000000636C000-memory.dmp

Filesize
624KB

Download
memory/704-12-0x0000000000400000-0x0000000000418000-memory.dmp

Filesize
96KB

Download
memory/704-13-0x000000007470E000-0x000000007470F000-memory.dmp

Filesize
4KB

Download
memory/704-14-0x0000000005730000-0x0000000005CD4000-memory.dmp

Filesize
5.6MB

Download
memory/704-16-0x0000000074700000-0x0000000074EB0000-memory.dmp

Filesize
7.7MB

Download
memory/704-17-0x0000000005520000-0x00000000055B2000-memory.dmp

Filesize
584KB

Download
memory/704-18-0x0000000074700000-0x0000000074EB0000-memory.dmp

Filesize
7.7MB

Download
memory/704-54-0x0000000007240000-0x000000000728C000-memory.dmp

Filesize
304KB

Download
memory/704-53-0x0000000007500000-0x0000000007854000-memory.dmp

Filesize
3.3MB

Download
memory/704-21-0x0000000006370000-0x00000000063D6000-memory.dmp

Filesize
408KB

Download
memory/704-22-0x0000000074700000-0x0000000074EB0000-memory.dmp

Filesize
7.7MB

Download
memory/704-24-0x000000007470E000-0x000000007470F000-memory.dmp

Filesize
4KB

Download
memory/704-25-0x0000000074700000-0x0000000074EB0000-memory.dmp

Filesize
7.7MB

Download
memory/704-26-0x0000000006F70000-0x0000000006FE6000-memory.dmp

Filesize
472KB

Download
memory/704-27-0x0000000006FF0000-0x0000000007112000-memory.dmp

Filesize
1.1MB

Download
memory/704-28-0x0000000074700000-0x0000000074EB0000-memory.dmp

Filesize
7.7MB

Download
memory/704-29-0x0000000006F40000-0x0000000006F5E000-memory.dmp

Filesize
120KB

Download
memory/2088-10-0x0000000003BA0000-0x0000000003DA0000-memory.dmp

Filesize
2.0MB

Download
memory/2800-2-0x0000000004080000-0x0000000004280000-memory.dmp

Filesize
2.0MB

Download

Analysis

Sharing

Errors