asyncrat | c60ba9763d5435d1f9642f76f5e51104e52d496d706f19238184ef7906bbcded

General

Target

c60ba9763d5435d1f9642f76f5e51104e52d496d706f19238184ef7906bbcded.exe
Size

1.3MB
MD5

76373a6166baaf98f7bcaeda47be1c31
SHA1

c847ef0f375229315ffa87706766c9054b4d6572
SHA256

c60ba9763d5435d1f9642f76f5e51104e52d496d706f19238184ef7906bbcded
SHA512

aec1da7987348823f63151ee0ae7902bb2d8d4321d35c91d58711eac7c8cb973600d8d15ef9965881fd829388031e22123d039a3d56471c0bf17719f80a8eb83
SSDEEP

24576:GzyGrV6xcTu/39VnvGORWPBmrze5e+6nJCA6t1zsXoOPG8:GAdPhwJj/Ob

Score

10^/10

asyncrat default discovery rat

Malware Config

Extracted

Family

asyncrat

Version

0.5.7B

Botnet

Default

C2

45.150.149.97:1700

Mutex

AsyncMutex_6SI8OkPnk

Attributes

delay
3
install
true
install_file
Registry.exe
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

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-1-5-21-3227495264-2217614367-4027411560-1000\Control Panel\International\Geo\Nation	c60ba9763d5435d1f9642f76f5e51104e52d496d706f19238184ef7906bbcded.exe

Executes dropped EXE 2 IoCs

pid	Process
4992	Registry.exe
1348	Registry.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 3996 set thread context of 4464	3996	c60ba9763d5435d1f9642f76f5e51104e52d496d706f19238184ef7906bbcded.exe	82
PID 4992 set thread context of 1348	4992	Registry.exe	94

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 8 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	cmd.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	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Registry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Registry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	c60ba9763d5435d1f9642f76f5e51104e52d496d706f19238184ef7906bbcded.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	c60ba9763d5435d1f9642f76f5e51104e52d496d706f19238184ef7906bbcded.exe

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
1916	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
1956	schtasks.exe

Suspicious behavior: EnumeratesProcesses 23 IoCs

pid	Process
4464	c60ba9763d5435d1f9642f76f5e51104e52d496d706f19238184ef7906bbcded.exe
4464	c60ba9763d5435d1f9642f76f5e51104e52d496d706f19238184ef7906bbcded.exe
4464	c60ba9763d5435d1f9642f76f5e51104e52d496d706f19238184ef7906bbcded.exe
4464	c60ba9763d5435d1f9642f76f5e51104e52d496d706f19238184ef7906bbcded.exe
4464	c60ba9763d5435d1f9642f76f5e51104e52d496d706f19238184ef7906bbcded.exe
4464	c60ba9763d5435d1f9642f76f5e51104e52d496d706f19238184ef7906bbcded.exe
4464	c60ba9763d5435d1f9642f76f5e51104e52d496d706f19238184ef7906bbcded.exe
4464	c60ba9763d5435d1f9642f76f5e51104e52d496d706f19238184ef7906bbcded.exe
4464	c60ba9763d5435d1f9642f76f5e51104e52d496d706f19238184ef7906bbcded.exe
4464	c60ba9763d5435d1f9642f76f5e51104e52d496d706f19238184ef7906bbcded.exe
4464	c60ba9763d5435d1f9642f76f5e51104e52d496d706f19238184ef7906bbcded.exe
4464	c60ba9763d5435d1f9642f76f5e51104e52d496d706f19238184ef7906bbcded.exe
4464	c60ba9763d5435d1f9642f76f5e51104e52d496d706f19238184ef7906bbcded.exe
4464	c60ba9763d5435d1f9642f76f5e51104e52d496d706f19238184ef7906bbcded.exe
4464	c60ba9763d5435d1f9642f76f5e51104e52d496d706f19238184ef7906bbcded.exe
4464	c60ba9763d5435d1f9642f76f5e51104e52d496d706f19238184ef7906bbcded.exe
4464	c60ba9763d5435d1f9642f76f5e51104e52d496d706f19238184ef7906bbcded.exe
4464	c60ba9763d5435d1f9642f76f5e51104e52d496d706f19238184ef7906bbcded.exe
4464	c60ba9763d5435d1f9642f76f5e51104e52d496d706f19238184ef7906bbcded.exe
4464	c60ba9763d5435d1f9642f76f5e51104e52d496d706f19238184ef7906bbcded.exe
4464	c60ba9763d5435d1f9642f76f5e51104e52d496d706f19238184ef7906bbcded.exe
4464	c60ba9763d5435d1f9642f76f5e51104e52d496d706f19238184ef7906bbcded.exe
4464	c60ba9763d5435d1f9642f76f5e51104e52d496d706f19238184ef7906bbcded.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	3996	c60ba9763d5435d1f9642f76f5e51104e52d496d706f19238184ef7906bbcded.exe
Token: SeDebugPrivilege	4464	c60ba9763d5435d1f9642f76f5e51104e52d496d706f19238184ef7906bbcded.exe
Token: SeDebugPrivilege	4992	Registry.exe
Token: SeDebugPrivilege	1348	Registry.exe

Suspicious use of WriteProcessMemory 25 IoCs

description	pid	Process	procid_target
PID 3996 wrote to memory of 4464	3996	c60ba9763d5435d1f9642f76f5e51104e52d496d706f19238184ef7906bbcded.exe	82
PID 3996 wrote to memory of 4464	3996	c60ba9763d5435d1f9642f76f5e51104e52d496d706f19238184ef7906bbcded.exe	82
PID 3996 wrote to memory of 4464	3996	c60ba9763d5435d1f9642f76f5e51104e52d496d706f19238184ef7906bbcded.exe	82
PID 3996 wrote to memory of 4464	3996	c60ba9763d5435d1f9642f76f5e51104e52d496d706f19238184ef7906bbcded.exe	82
PID 3996 wrote to memory of 4464	3996	c60ba9763d5435d1f9642f76f5e51104e52d496d706f19238184ef7906bbcded.exe	82
PID 4464 wrote to memory of 1260	4464	c60ba9763d5435d1f9642f76f5e51104e52d496d706f19238184ef7906bbcded.exe	83
PID 4464 wrote to memory of 1260	4464	c60ba9763d5435d1f9642f76f5e51104e52d496d706f19238184ef7906bbcded.exe	83
PID 4464 wrote to memory of 1260	4464	c60ba9763d5435d1f9642f76f5e51104e52d496d706f19238184ef7906bbcded.exe	83
PID 4464 wrote to memory of 1252	4464	c60ba9763d5435d1f9642f76f5e51104e52d496d706f19238184ef7906bbcded.exe	85
PID 4464 wrote to memory of 1252	4464	c60ba9763d5435d1f9642f76f5e51104e52d496d706f19238184ef7906bbcded.exe	85
PID 4464 wrote to memory of 1252	4464	c60ba9763d5435d1f9642f76f5e51104e52d496d706f19238184ef7906bbcded.exe	85
PID 1252 wrote to memory of 1916	1252	cmd.exe	87
PID 1252 wrote to memory of 1916	1252	cmd.exe	87
PID 1252 wrote to memory of 1916	1252	cmd.exe	87
PID 1260 wrote to memory of 1956	1260	cmd.exe	88
PID 1260 wrote to memory of 1956	1260	cmd.exe	88
PID 1260 wrote to memory of 1956	1260	cmd.exe	88
PID 1252 wrote to memory of 4992	1252	cmd.exe	93
PID 1252 wrote to memory of 4992	1252	cmd.exe	93
PID 1252 wrote to memory of 4992	1252	cmd.exe	93
PID 4992 wrote to memory of 1348	4992	Registry.exe	94
PID 4992 wrote to memory of 1348	4992	Registry.exe	94
PID 4992 wrote to memory of 1348	4992	Registry.exe	94
PID 4992 wrote to memory of 1348	4992	Registry.exe	94
PID 4992 wrote to memory of 1348	4992	Registry.exe	94

C:\Users\Admin\AppData\Local\Temp\c60ba9763d5435d1f9642f76f5e51104e52d496d706f19238184ef7906bbcded.exe
"C:\Users\Admin\AppData\Local\Temp\c60ba9763d5435d1f9642f76f5e51104e52d496d706f19238184ef7906bbcded.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3996
- C:\Users\Admin\AppData\Local\Temp\c60ba9763d5435d1f9642f76f5e51104e52d496d706f19238184ef7906bbcded.exe
  C:\Users\Admin\AppData\Local\Temp\c60ba9763d5435d1f9642f76f5e51104e52d496d706f19238184ef7906bbcded.exe
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4464
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "Registry" /tr '"C:\Users\Admin\AppData\Roaming\Registry.exe"' & exit
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1260
  - - C:\Windows\SysWOW64\schtasks.exe
      schtasks /create /f /sc onlogon /rl highest /tn "Registry" /tr '"C:\Users\Admin\AppData\Roaming\Registry.exe"'
      4⤵
      System Location Discovery: System Language Discovery
      Scheduled Task/Job: Scheduled Task
      PID:1956
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmpA2E7.tmp.bat""
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1252
  - - C:\Windows\SysWOW64\timeout.exe
      timeout 3
      4⤵
      System Location Discovery: System Language Discovery
      Delays execution with timeout.exe
      PID:1916
  - - C:\Users\Admin\AppData\Roaming\Registry.exe
      "C:\Users\Admin\AppData\Roaming\Registry.exe"
      4⤵
      Executes dropped EXE
      Suspicious use of SetThreadContext
      System Location Discovery: System Language Discovery
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of WriteProcessMemory
      PID:4992
    - - C:\Users\Admin\AppData\Roaming\Registry.exe
        
        C:\Users\Admin\AppData\Roaming\Registry.exe
        5⤵
        Executes dropped EXE
        System Location Discovery: System Language Discovery
        Suspicious use of AdjustPrivilegeToken
        
        PID:1348

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

Query Registry

1

T1012

System Information Discovery

2

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\Local\Microsoft\CLR_v4.0_32\UsageLogs\c60ba9763d5435d1f9642f76f5e51104e52d496d706f19238184ef7906bbcded.exe.log

Filesize
617B

MD5
47504b42411e2c23666d08795adae488

SHA1
92ba780125e2fcedc6223478504aa501adf95c06

SHA256
4b2747d4a45ae359c415f11d2a2d9e09e6a036aad39b40e284850603b64bbc98

SHA512
a2d33cb21ec121b9f857c81df3992da216859f5df69cc8da9edbd91eeb21f45b7ac79459d0c6bc08f09bc33684dfff62a20feddd13d5367ad717095ac85fe9c1

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpA2E7.tmp.bat

Filesize
152B

MD5
ff9050dbdb10a54beeb63984a8dfc4a8

SHA1
5d54d498e6878c81a8f704446849b21281511a98

SHA256
3da671e9bd36991ec78a0fad309ce7602c3ed3973517b72a889d2fcc6605891b

SHA512
19d64f209fa52cadee22094dbf47743f0feb29446ce0151b74e65bccbc1782e1aaa4b4135e4e66c5d397fedd9b274e8d5471ddb0370ec62002efdd3224cc1021

Download Submit
C:\Users\Admin\AppData\Roaming\Registry.exe

Filesize
1.3MB

MD5
76373a6166baaf98f7bcaeda47be1c31

SHA1
c847ef0f375229315ffa87706766c9054b4d6572

SHA256
c60ba9763d5435d1f9642f76f5e51104e52d496d706f19238184ef7906bbcded

SHA512
aec1da7987348823f63151ee0ae7902bb2d8d4321d35c91d58711eac7c8cb973600d8d15ef9965881fd829388031e22123d039a3d56471c0bf17719f80a8eb83

Download Submit
memory/1348-53-0x0000000006140000-0x00000000061A6000-memory.dmp

Filesize
408KB

Download
memory/3996-21-0x00000000749F0000-0x00000000751A0000-memory.dmp

Filesize
7.7MB

Download
memory/3996-23-0x00000000749F0000-0x00000000751A0000-memory.dmp

Filesize
7.7MB

Download
memory/3996-20-0x00000000749F0000-0x00000000751A0000-memory.dmp

Filesize
7.7MB

Download
memory/3996-1-0x0000000000A40000-0x0000000000B7A000-memory.dmp

Filesize
1.2MB

Download
memory/3996-0-0x00000000749FE000-0x00000000749FF000-memory.dmp

Filesize
4KB

Download
memory/3996-24-0x00000000749F0000-0x00000000751A0000-memory.dmp

Filesize
7.7MB

Download
memory/3996-2-0x00000000749F0000-0x00000000751A0000-memory.dmp

Filesize
7.7MB

Download
memory/3996-5-0x00000000055B0000-0x00000000055BA000-memory.dmp

Filesize
40KB

Download
memory/3996-3-0x0000000005600000-0x000000000569C000-memory.dmp

Filesize
624KB

Download
memory/3996-4-0x0000000005E50000-0x00000000063F4000-memory.dmp

Filesize
5.6MB

Download
memory/4464-31-0x00000000749F0000-0x00000000751A0000-memory.dmp

Filesize
7.7MB

Download
memory/4464-26-0x00000000749F0000-0x00000000751A0000-memory.dmp

Filesize
7.7MB

Download
memory/4464-25-0x00000000749F0000-0x00000000751A0000-memory.dmp

Filesize
7.7MB

Download
memory/4464-19-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads