asyncrat | 65e49e807cb350e8d52738fbbd9390f4cf2bcd31d6959b71932cd88c41ae574a

General

Target

65e49e807cb350e8d52738fbbd9390f4cf2bcd31d6959b71932cd88c41ae574aN.exe
Size

268KB
MD5

689ea565b6fe026ca44ebe1bc380ff10
SHA1

e8dbea6169b28ba9742c3f8472a351b2487d6fff
SHA256

65e49e807cb350e8d52738fbbd9390f4cf2bcd31d6959b71932cd88c41ae574a
SHA512

d61a544bfa57f750505a50224d75fda9f523903fa464e6698c3194e05a3fcbc8e9e53910a19bc793da05cf8d1d73dabfb14f2def07e8762d8047872d0f32da6f
SSDEEP

3072:WdvzDqxs8ORikgogWfiuRXd3YmSffdTKXNXANewGBvskX1pWA/s8DR:WFzDqa86hV6uRRqX1evPlwAEQR

Score

10^/10

asyncrat discovery persistence rat

Malware Config

Extracted

Family

asyncrat

Version

0.4.9G

C2

corporation.warzonedns.com:9341

Mutex

480-28105c055659

Attributes

delay
0
install
false
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

Contains code to disable Windows Defender 5 IoCs

A .NET executable tasked with disabling Windows Defender capabilities such as realtime monitoring, blocking at first seen, etc.

resource	yara_rule
behavioral1/memory/2840-38-0x0000000000400000-0x0000000000430000-memory.dmp	disable_win_def
behavioral1/memory/2840-37-0x0000000000400000-0x0000000000430000-memory.dmp	disable_win_def
behavioral1/memory/2840-36-0x0000000000400000-0x0000000000430000-memory.dmp	disable_win_def
behavioral1/memory/2840-33-0x0000000000400000-0x0000000000430000-memory.dmp	disable_win_def
behavioral1/memory/2840-31-0x0000000000400000-0x0000000000430000-memory.dmp	disable_win_def

Executes dropped EXE 1 IoCs

pid	Process
1288	HiPatchService.exe

Loads dropped DLL 1 IoCs

pid	Process
2464	65e49e807cb350e8d52738fbbd9390f4cf2bcd31d6959b71932cd88c41ae574aN.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1846800975-3917212583-2893086201-1000\Software\Microsoft\Windows\CurrentVersion\Run\HiPatch = "C:\\Users\\Admin\\AppData\\Roaming\\HiPatch\\HiPatchService.exe"	65e49e807cb350e8d52738fbbd9390f4cf2bcd31d6959b71932cd88c41ae574aN.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1288 set thread context of 2840	1288	HiPatchService.exe	34

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 4 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	65e49e807cb350e8d52738fbbd9390f4cf2bcd31d6959b71932cd88c41ae574aN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	HiPatchService.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegAsm.exe

Suspicious behavior: EnumeratesProcesses 10 IoCs

pid	Process
2840	RegAsm.exe
2840	RegAsm.exe
2840	RegAsm.exe
2840	RegAsm.exe
2840	RegAsm.exe
2840	RegAsm.exe
2840	RegAsm.exe
2840	RegAsm.exe
2840	RegAsm.exe
2840	RegAsm.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 2464 wrote to memory of 1288	2464	65e49e807cb350e8d52738fbbd9390f4cf2bcd31d6959b71932cd88c41ae574aN.exe	31
PID 2464 wrote to memory of 1288	2464	65e49e807cb350e8d52738fbbd9390f4cf2bcd31d6959b71932cd88c41ae574aN.exe	31
PID 2464 wrote to memory of 1288	2464	65e49e807cb350e8d52738fbbd9390f4cf2bcd31d6959b71932cd88c41ae574aN.exe	31
PID 2464 wrote to memory of 1288	2464	65e49e807cb350e8d52738fbbd9390f4cf2bcd31d6959b71932cd88c41ae574aN.exe	31
PID 2464 wrote to memory of 1288	2464	65e49e807cb350e8d52738fbbd9390f4cf2bcd31d6959b71932cd88c41ae574aN.exe	31
PID 2464 wrote to memory of 1288	2464	65e49e807cb350e8d52738fbbd9390f4cf2bcd31d6959b71932cd88c41ae574aN.exe	31
PID 2464 wrote to memory of 1288	2464	65e49e807cb350e8d52738fbbd9390f4cf2bcd31d6959b71932cd88c41ae574aN.exe	31
PID 2464 wrote to memory of 320	2464	65e49e807cb350e8d52738fbbd9390f4cf2bcd31d6959b71932cd88c41ae574aN.exe	32
PID 2464 wrote to memory of 320	2464	65e49e807cb350e8d52738fbbd9390f4cf2bcd31d6959b71932cd88c41ae574aN.exe	32
PID 2464 wrote to memory of 320	2464	65e49e807cb350e8d52738fbbd9390f4cf2bcd31d6959b71932cd88c41ae574aN.exe	32
PID 2464 wrote to memory of 320	2464	65e49e807cb350e8d52738fbbd9390f4cf2bcd31d6959b71932cd88c41ae574aN.exe	32
PID 2464 wrote to memory of 320	2464	65e49e807cb350e8d52738fbbd9390f4cf2bcd31d6959b71932cd88c41ae574aN.exe	32
PID 2464 wrote to memory of 320	2464	65e49e807cb350e8d52738fbbd9390f4cf2bcd31d6959b71932cd88c41ae574aN.exe	32
PID 2464 wrote to memory of 320	2464	65e49e807cb350e8d52738fbbd9390f4cf2bcd31d6959b71932cd88c41ae574aN.exe	32
PID 1288 wrote to memory of 2840	1288	HiPatchService.exe	34
PID 1288 wrote to memory of 2840	1288	HiPatchService.exe	34
PID 1288 wrote to memory of 2840	1288	HiPatchService.exe	34
PID 1288 wrote to memory of 2840	1288	HiPatchService.exe	34
PID 1288 wrote to memory of 2840	1288	HiPatchService.exe	34
PID 1288 wrote to memory of 2840	1288	HiPatchService.exe	34
PID 1288 wrote to memory of 2840	1288	HiPatchService.exe	34
PID 1288 wrote to memory of 2840	1288	HiPatchService.exe	34
PID 1288 wrote to memory of 2840	1288	HiPatchService.exe	34
PID 1288 wrote to memory of 2840	1288	HiPatchService.exe	34
PID 1288 wrote to memory of 2840	1288	HiPatchService.exe	34
PID 1288 wrote to memory of 2840	1288	HiPatchService.exe	34

C:\Users\Admin\AppData\Local\Temp\65e49e807cb350e8d52738fbbd9390f4cf2bcd31d6959b71932cd88c41ae574aN.exe
"C:\Users\Admin\AppData\Local\Temp\65e49e807cb350e8d52738fbbd9390f4cf2bcd31d6959b71932cd88c41ae574aN.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2464
- C:\Users\Admin\AppData\Roaming\HiPatch\HiPatchService.exe
  "C:\Users\Admin\AppData\Roaming\HiPatch\HiPatchService.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1288
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    PID:2840
- C:\Windows\SysWOW64\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Roaming\HiPatch\HiPatchService.bat""
  2⤵
  - System Location Discovery: System Language Discovery
  PID:320

C:\Windows\system32\wbem\WmiApSrv.exe
C:\Windows\system32\wbem\WmiApSrv.exe
1⤵
PID:2608

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

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

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Downloads

C:\Users\Admin\AppData\Roaming\HiPatch\HiPatchService.bat

Filesize
213B

MD5
0955cb4b691d44b37f8b6fad48a33b8e

SHA1
9dae759ae014cc124ab6eed7c8035788c124ae4a

SHA256
9092dbb1ca1767d1966b7f79349dd95a802a68248251bf070c0f1d74d5681d71

SHA512
08b868a028c1e8d29ed643416850df16f58d44668f9193b46bd3934965e5617a0a4015fc52815c5456023dbde01023450d295b76d936a936f26b602e764b0235

Download Submit
\Users\Admin\AppData\Roaming\HiPatch\HiPatchService.exe

Filesize
268KB

MD5
31f2eec0f9efe768a0b3fa8b66914cd2

SHA1
58e7d7bad6603be8af43089194ee21ed59b67b0a

SHA256
156a1bc4b8768fef30a5ea53331b21351e453d9245a7aea10994ffda6d4e4737

SHA512
2317e9cb7497643c58ee6c47e9f0b76d186d2da8dea175857731c3bb329bc96677f25814e1d8d1386cea7484c35fea2780c1a9534a340316ff20115d09620e3f

Download Submit
memory/1288-22-0x0000000001180000-0x00000000011C6000-memory.dmp

Filesize
280KB

Download
memory/1288-39-0x0000000074DC0000-0x00000000754AE000-memory.dmp

Filesize
6.9MB

Download
memory/1288-25-0x0000000074DC0000-0x00000000754AE000-memory.dmp

Filesize
6.9MB

Download
memory/2464-9-0x0000000074DCE000-0x0000000074DCF000-memory.dmp

Filesize
4KB

Download
memory/2464-2-0x0000000000610000-0x000000000061A000-memory.dmp

Filesize
40KB

Download
memory/2464-1-0x0000000000BF0000-0x0000000000C36000-memory.dmp

Filesize
280KB

Download
memory/2464-23-0x0000000074DC0000-0x00000000754AE000-memory.dmp

Filesize
6.9MB

Download
memory/2464-26-0x0000000074DC0000-0x00000000754AE000-memory.dmp

Filesize
6.9MB

Download
memory/2464-0-0x0000000074DCE000-0x0000000074DCF000-memory.dmp

Filesize
4KB

Download
memory/2464-3-0x0000000074DC0000-0x00000000754AE000-memory.dmp

Filesize
6.9MB

Download
memory/2840-38-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2840-37-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2840-36-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2840-33-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2840-31-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2840-29-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2840-35-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2840-27-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads