asyncrat | df1b41271e250882cc5ce0a2d6f00b863faab7d9e8830358652d015fc1aeedf9

General

Target

df1b41271e250882cc5ce0a2d6f00b863faab7d9e8830358652d015fc1aeedf9.exe
Size

270KB
MD5

9cbdfc95c830493af0d8986bfef01f77
SHA1

921f7051f9bd6ee4bb7267b8ec8935f7535546cb
SHA256

df1b41271e250882cc5ce0a2d6f00b863faab7d9e8830358652d015fc1aeedf9
SHA512

26f1666affb62214b9fc8f30da91d019b3b432b11bbf3e275b190b4862f6b5c9a931e549bff15274c88429ede945dc94a243bf64ef8066f3c9daeb23707fd162
SSDEEP

3072:WdvzDqxs8ORikgogWfiuRXd3YmSffdTKXNXANewGBvskX1pWA/s8sdkXhb:WFzDqa86hV6uRRqX1evPlwAEdkXhb

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 1 IoCs

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

resource	yara_rule
behavioral2/memory/1244-30-0x0000000000400000-0x0000000000430000-memory.dmp	disable_win_def

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Control Panel\International\Geo\Nation	df1b41271e250882cc5ce0a2d6f00b863faab7d9e8830358652d015fc1aeedf9.exe

Executes dropped EXE 1 IoCs

pid	Process
5004	HiPatchService.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-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\HiPatch = "C:\\Users\\Admin\\AppData\\Roaming\\HiPatch\\HiPatchService.exe"	df1b41271e250882cc5ce0a2d6f00b863faab7d9e8830358652d015fc1aeedf9.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 5004 set thread context of 1244	5004	HiPatchService.exe	87

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 5 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	df1b41271e250882cc5ce0a2d6f00b863faab7d9e8830358652d015fc1aeedf9.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	timeout.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegAsm.exe

Checks processor information in registry 2 TTPs 2 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\Registry\Machine\HARDWARE\DESCRIPTION\System\CentralProcessor\0	RegAsm.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	RegAsm.exe

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
560	timeout.exe

Suspicious behavior: EnumeratesProcesses 26 IoCs

pid	Process
5004	HiPatchService.exe
5004	HiPatchService.exe
1244	RegAsm.exe
1244	RegAsm.exe
1244	RegAsm.exe
1244	RegAsm.exe
1244	RegAsm.exe
1244	RegAsm.exe
1244	RegAsm.exe
1244	RegAsm.exe
1244	RegAsm.exe
1244	RegAsm.exe
1244	RegAsm.exe
1244	RegAsm.exe
1244	RegAsm.exe
1244	RegAsm.exe
1244	RegAsm.exe
1244	RegAsm.exe
1244	RegAsm.exe
1244	RegAsm.exe
1244	RegAsm.exe
1244	RegAsm.exe
1244	RegAsm.exe
1244	RegAsm.exe
1244	RegAsm.exe
1244	RegAsm.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	5004	HiPatchService.exe

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 2228 wrote to memory of 5004	2228	df1b41271e250882cc5ce0a2d6f00b863faab7d9e8830358652d015fc1aeedf9.exe	82
PID 2228 wrote to memory of 5004	2228	df1b41271e250882cc5ce0a2d6f00b863faab7d9e8830358652d015fc1aeedf9.exe	82
PID 2228 wrote to memory of 5004	2228	df1b41271e250882cc5ce0a2d6f00b863faab7d9e8830358652d015fc1aeedf9.exe	82
PID 2228 wrote to memory of 4528	2228	df1b41271e250882cc5ce0a2d6f00b863faab7d9e8830358652d015fc1aeedf9.exe	83
PID 2228 wrote to memory of 4528	2228	df1b41271e250882cc5ce0a2d6f00b863faab7d9e8830358652d015fc1aeedf9.exe	83
PID 2228 wrote to memory of 4528	2228	df1b41271e250882cc5ce0a2d6f00b863faab7d9e8830358652d015fc1aeedf9.exe	83
PID 4528 wrote to memory of 560	4528	cmd.exe	85
PID 4528 wrote to memory of 560	4528	cmd.exe	85
PID 4528 wrote to memory of 560	4528	cmd.exe	85
PID 5004 wrote to memory of 1668	5004	HiPatchService.exe	86
PID 5004 wrote to memory of 1668	5004	HiPatchService.exe	86
PID 5004 wrote to memory of 1668	5004	HiPatchService.exe	86
PID 5004 wrote to memory of 1244	5004	HiPatchService.exe	87
PID 5004 wrote to memory of 1244	5004	HiPatchService.exe	87
PID 5004 wrote to memory of 1244	5004	HiPatchService.exe	87
PID 5004 wrote to memory of 1244	5004	HiPatchService.exe	87
PID 5004 wrote to memory of 1244	5004	HiPatchService.exe	87
PID 5004 wrote to memory of 1244	5004	HiPatchService.exe	87
PID 5004 wrote to memory of 1244	5004	HiPatchService.exe	87
PID 5004 wrote to memory of 1244	5004	HiPatchService.exe	87

C:\Users\Admin\AppData\Local\Temp\df1b41271e250882cc5ce0a2d6f00b863faab7d9e8830358652d015fc1aeedf9.exe
"C:\Users\Admin\AppData\Local\Temp\df1b41271e250882cc5ce0a2d6f00b863faab7d9e8830358652d015fc1aeedf9.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2228
- 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 behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:5004
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
    3⤵
    PID:1668
- - 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
    - Checks processor information in registry
    - Suspicious behavior: EnumeratesProcesses
    PID:1244
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Roaming\HiPatch\HiPatchService.bat""
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4528
- - C:\Windows\SysWOW64\timeout.exe
    timeout /t 180
    3⤵
    - System Location Discovery: System Language Discovery
    - Delays execution with timeout.exe
    PID:560

C:\Windows\system32\wbem\WmiApSrv.exe
C:\Windows\system32\wbem\WmiApSrv.exe
1⤵
PID:404

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

Query Registry

2

T1012

System Information Discovery

3

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

Filesize
271KB

MD5
f88e2249058a5dcf08d71b138e20ef28

SHA1
d8781cd72bcd1c3a698ae5fe7d6c4c5175730bae

SHA256
7f467668de39b926e20c829e3680011dadf67487d74975ea91b78f85019087eb

SHA512
4394694a54543feaac7972e3980894935450562452038595eeabda2f9475a1fd5a6a5ed97d40aff3fe41a01eab5ba6b626fb86e171e5fc3f6b7ccefa24c74e67

Download Submit
memory/1244-30-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/2228-25-0x0000000074C40000-0x00000000753F0000-memory.dmp

Filesize
7.7MB

Download
memory/2228-4-0x0000000074C40000-0x00000000753F0000-memory.dmp

Filesize
7.7MB

Download
memory/2228-5-0x0000000004FD0000-0x0000000004FDA000-memory.dmp

Filesize
40KB

Download
memory/2228-6-0x0000000004FC0000-0x0000000004FCA000-memory.dmp

Filesize
40KB

Download
memory/2228-2-0x00000000055F0000-0x0000000005B94000-memory.dmp

Filesize
5.6MB

Download
memory/2228-0-0x0000000074C4E000-0x0000000074C4F000-memory.dmp

Filesize
4KB

Download
memory/2228-10-0x0000000074C4E000-0x0000000074C4F000-memory.dmp

Filesize
4KB

Download
memory/2228-26-0x0000000074C40000-0x00000000753F0000-memory.dmp

Filesize
7.7MB

Download
memory/2228-1-0x0000000000590000-0x00000000005D6000-memory.dmp

Filesize
280KB

Download
memory/2228-3-0x0000000005040000-0x00000000050D2000-memory.dmp

Filesize
584KB

Download
memory/5004-27-0x0000000074C40000-0x00000000753F0000-memory.dmp

Filesize
7.7MB

Download
memory/5004-29-0x0000000074C40000-0x00000000753F0000-memory.dmp

Filesize
7.7MB

Download
memory/5004-32-0x0000000074C40000-0x00000000753F0000-memory.dmp

Filesize
7.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads