asyncrat | 38ed1513b169db909595c0f37d660ebbeeb87946ad9ada15d1ebb45f7ed4ee06

General

Target

ElitecutSetup.exe
Size

7.2MB
MD5

9b7d706bac6f21d08f43b62f993933a5
SHA1

b6794baa320f187d239d40e949f5aaf8aeff6c62
SHA256

38ed1513b169db909595c0f37d660ebbeeb87946ad9ada15d1ebb45f7ed4ee06
SHA512

f61ce99033e2e5af55d1aa425fcf69a4a4009220411d2320733430b717d2a60fd59f4df1205d4ff0b15e3f65302835a592559789bcdbbb6aaf933f28f8920bf8
SSDEEP

196608:XT9a8z0a7oXwmIaKF39LQzl99MatTxRStt5dr/:J1zHvaKFNL2l9WaInr/

Score

10^/10

asyncrat furry discovery rat

Malware Config

Extracted

Family

asyncrat

Botnet

Furry

C2

193.161.193.99:36700

Attributes

delay
1
install
true
install_file
syskprvalor.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

Processes:

ElitecutSetup.exe

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

Executes dropped EXE 2 IoCs

Processes:

syskprvalor.exesyskprvalor.exe

pid process

2384 syskprvalor.exe
412 syskprvalor.exe

pid	process
2384	syskprvalor.exe
412	syskprvalor.exe

Suspicious use of SetThreadContext 2 IoCs

Processes:

ElitecutSetup.exesyskprvalor.exe

description	pid	process	target process
PID 1448 set thread context of 4184	1448	ElitecutSetup.exe	ElitecutSetup.exe
PID 2384 set thread context of 412	2384	syskprvalor.exe	syskprvalor.exe

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

Processes:

syskprvalor.exesyskprvalor.exeElitecutSetup.exeElitecutSetup.execmd.execmd.exeschtasks.exetimeout.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	syskprvalor.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	syskprvalor.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ElitecutSetup.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ElitecutSetup.exe
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	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	timeout.exe

Delays execution with timeout.exe 1 IoCs
evasion

Processes:

timeout.exe

pid process

212 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

Processes:

schtasks.exe

pid process

2976 schtasks.exe

pid	process
212	timeout.exe

pid	process
2976	schtasks.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

ElitecutSetup.exesyskprvalor.exe

pid	process
4184	ElitecutSetup.exe
4184	ElitecutSetup.exe
4184	ElitecutSetup.exe
4184	ElitecutSetup.exe
4184	ElitecutSetup.exe
4184	ElitecutSetup.exe
4184	ElitecutSetup.exe
4184	ElitecutSetup.exe
4184	ElitecutSetup.exe
4184	ElitecutSetup.exe
4184	ElitecutSetup.exe
4184	ElitecutSetup.exe
4184	ElitecutSetup.exe
4184	ElitecutSetup.exe
4184	ElitecutSetup.exe
4184	ElitecutSetup.exe
4184	ElitecutSetup.exe
4184	ElitecutSetup.exe
4184	ElitecutSetup.exe
4184	ElitecutSetup.exe
4184	ElitecutSetup.exe
4184	ElitecutSetup.exe
4184	ElitecutSetup.exe
4184	ElitecutSetup.exe
4184	ElitecutSetup.exe
4184	ElitecutSetup.exe
4184	ElitecutSetup.exe
4184	ElitecutSetup.exe
4184	ElitecutSetup.exe
4184	ElitecutSetup.exe
4184	ElitecutSetup.exe
4184	ElitecutSetup.exe
4184	ElitecutSetup.exe
412	syskprvalor.exe
412	syskprvalor.exe
412	syskprvalor.exe
412	syskprvalor.exe
412	syskprvalor.exe
412	syskprvalor.exe
412	syskprvalor.exe
412	syskprvalor.exe
412	syskprvalor.exe
412	syskprvalor.exe
412	syskprvalor.exe
412	syskprvalor.exe
412	syskprvalor.exe
412	syskprvalor.exe
412	syskprvalor.exe
412	syskprvalor.exe
412	syskprvalor.exe
412	syskprvalor.exe
412	syskprvalor.exe
412	syskprvalor.exe
412	syskprvalor.exe
412	syskprvalor.exe
412	syskprvalor.exe
412	syskprvalor.exe
412	syskprvalor.exe
412	syskprvalor.exe
412	syskprvalor.exe
412	syskprvalor.exe
412	syskprvalor.exe
412	syskprvalor.exe
412	syskprvalor.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

ElitecutSetup.exesyskprvalor.exe

description pid process

Token: SeDebugPrivilege 4184 ElitecutSetup.exe
Token: SeDebugPrivilege 412 syskprvalor.exe

description	pid	process
Token: SeDebugPrivilege	4184	ElitecutSetup.exe
Token: SeDebugPrivilege	412	syskprvalor.exe

Suspicious use of WriteProcessMemory 31 IoCs

Processes:

ElitecutSetup.exeElitecutSetup.execmd.execmd.exesyskprvalor.exe

description	pid	process	target process
PID 1448 wrote to memory of 4184	1448	ElitecutSetup.exe	ElitecutSetup.exe
PID 1448 wrote to memory of 4184	1448	ElitecutSetup.exe	ElitecutSetup.exe
PID 1448 wrote to memory of 4184	1448	ElitecutSetup.exe	ElitecutSetup.exe
PID 1448 wrote to memory of 4184	1448	ElitecutSetup.exe	ElitecutSetup.exe
PID 1448 wrote to memory of 4184	1448	ElitecutSetup.exe	ElitecutSetup.exe
PID 1448 wrote to memory of 4184	1448	ElitecutSetup.exe	ElitecutSetup.exe
PID 1448 wrote to memory of 4184	1448	ElitecutSetup.exe	ElitecutSetup.exe
PID 1448 wrote to memory of 4184	1448	ElitecutSetup.exe	ElitecutSetup.exe
PID 4184 wrote to memory of 3676	4184	ElitecutSetup.exe	cmd.exe
PID 4184 wrote to memory of 3676	4184	ElitecutSetup.exe	cmd.exe
PID 4184 wrote to memory of 3676	4184	ElitecutSetup.exe	cmd.exe
PID 4184 wrote to memory of 4208	4184	ElitecutSetup.exe	cmd.exe
PID 4184 wrote to memory of 4208	4184	ElitecutSetup.exe	cmd.exe
PID 4184 wrote to memory of 4208	4184	ElitecutSetup.exe	cmd.exe
PID 3676 wrote to memory of 2976	3676	cmd.exe	schtasks.exe
PID 3676 wrote to memory of 2976	3676	cmd.exe	schtasks.exe
PID 3676 wrote to memory of 2976	3676	cmd.exe	schtasks.exe
PID 4208 wrote to memory of 212	4208	cmd.exe	timeout.exe
PID 4208 wrote to memory of 212	4208	cmd.exe	timeout.exe
PID 4208 wrote to memory of 212	4208	cmd.exe	timeout.exe
PID 4208 wrote to memory of 2384	4208	cmd.exe	syskprvalor.exe
PID 4208 wrote to memory of 2384	4208	cmd.exe	syskprvalor.exe
PID 4208 wrote to memory of 2384	4208	cmd.exe	syskprvalor.exe
PID 2384 wrote to memory of 412	2384	syskprvalor.exe	syskprvalor.exe
PID 2384 wrote to memory of 412	2384	syskprvalor.exe	syskprvalor.exe
PID 2384 wrote to memory of 412	2384	syskprvalor.exe	syskprvalor.exe
PID 2384 wrote to memory of 412	2384	syskprvalor.exe	syskprvalor.exe
PID 2384 wrote to memory of 412	2384	syskprvalor.exe	syskprvalor.exe
PID 2384 wrote to memory of 412	2384	syskprvalor.exe	syskprvalor.exe
PID 2384 wrote to memory of 412	2384	syskprvalor.exe	syskprvalor.exe
PID 2384 wrote to memory of 412	2384	syskprvalor.exe	syskprvalor.exe

C:\Users\Admin\AppData\Local\Temp\ElitecutSetup.exe
"C:\Users\Admin\AppData\Local\Temp\ElitecutSetup.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1448
- C:\Users\Admin\AppData\Local\Temp\ElitecutSetup.exe
  "C:\Users\Admin\AppData\Local\Temp\ElitecutSetup.exe"
  2⤵
  - Checks computer location settings
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4184
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "syskprvalor" /tr '"C:\Users\Admin\AppData\Roaming\syskprvalor.exe"' & exit
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:3676
  - - C:\Windows\SysWOW64\schtasks.exe
      schtasks /create /f /sc onlogon /rl highest /tn "syskprvalor" /tr '"C:\Users\Admin\AppData\Roaming\syskprvalor.exe"'
      4⤵
      System Location Discovery: System Language Discovery
      Scheduled Task/Job: Scheduled Task
      PID:2976
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmpE426.tmp.bat""
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:4208
  - - C:\Windows\SysWOW64\timeout.exe
      timeout 3
      4⤵
      System Location Discovery: System Language Discovery
      Delays execution with timeout.exe
      PID:212
  - - C:\Users\Admin\AppData\Roaming\syskprvalor.exe
      "C:\Users\Admin\AppData\Roaming\syskprvalor.exe"
      4⤵
      Executes dropped EXE
      Suspicious use of SetThreadContext
      System Location Discovery: System Language Discovery
      Suspicious use of WriteProcessMemory
      PID:2384
    - - C:\Users\Admin\AppData\Roaming\syskprvalor.exe
        
        "C:\Users\Admin\AppData\Roaming\syskprvalor.exe"
        5⤵
        Executes dropped EXE
        System Location Discovery: System Language Discovery
        Suspicious behavior: EnumeratesProcesses
        Suspicious use of AdjustPrivilegeToken
        
        PID:412

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

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\ElitecutSetup.exe.log

Filesize
1KB

MD5
b5291f3dcf2c13784e09a057f2e43d13

SHA1
fbb72f4b04269e0d35b1d9c29d02d63dbc7ad07e

SHA256
ad995b51344d71019f96fc3a424de00256065daad8595ff599f6849c87ae75ce

SHA512
11c89caac425bccaa24e2bb24c6f2b4e6d6863278bf8a5304a42bb44475b08ca586e09143e7d5b14db7f1cd9adacd5358769e0d999dc348073431031067bd4d4

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpE426.tmp.bat

Filesize
155B

MD5
4288bdd54bd9422d33da38a68bd93686

SHA1
30f58addd128a8ae86a4fb68fac401123b6caeff

SHA256
2a5285dbf45d603ff26cfa5bc319d20b0e9a8552bb614124824d7a67aa52b041

SHA512
d1ba41dcbba238b21ee7e81d7dfe125299466a78b1b3b9c1effec2fea05f7b39404d528ed23fbd43cd3c4d4e0e19bde5b5eaa992edc40835ab4a027a0ce5e7eb

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

Filesize
7.2MB

MD5
9b7d706bac6f21d08f43b62f993933a5

SHA1
b6794baa320f187d239d40e949f5aaf8aeff6c62

SHA256
38ed1513b169db909595c0f37d660ebbeeb87946ad9ada15d1ebb45f7ed4ee06

SHA512
f61ce99033e2e5af55d1aa425fcf69a4a4009220411d2320733430b717d2a60fd59f4df1205d4ff0b15e3f65302835a592559789bcdbbb6aaf933f28f8920bf8

Download Submit
memory/412-34-0x0000000006D10000-0x0000000006D44000-memory.dmp

Filesize
208KB

Download
memory/412-33-0x0000000006800000-0x0000000006866000-memory.dmp

Filesize
408KB

Download
memory/412-32-0x00000000066F0000-0x000000000678C000-memory.dmp

Filesize
624KB

Download
memory/1448-10-0x0000000005D70000-0x0000000005D8E000-memory.dmp

Filesize
120KB

Download
memory/1448-5-0x0000000005AA0000-0x0000000005B16000-memory.dmp

Filesize
472KB

Download
memory/1448-8-0x0000000074DF0000-0x00000000755A0000-memory.dmp

Filesize
7.7MB

Download
memory/1448-9-0x00000000073E0000-0x0000000007AE8000-memory.dmp

Filesize
7.0MB

Download
memory/1448-0-0x0000000074DFE000-0x0000000074DFF000-memory.dmp

Filesize
4KB

Download
memory/1448-7-0x0000000074DFE000-0x0000000074DFF000-memory.dmp

Filesize
4KB

Download
memory/1448-6-0x0000000074DF0000-0x00000000755A0000-memory.dmp

Filesize
7.7MB

Download
memory/1448-1-0x00000000006C0000-0x0000000000DFC000-memory.dmp

Filesize
7.2MB

Download
memory/1448-15-0x0000000074DF0000-0x00000000755A0000-memory.dmp

Filesize
7.7MB

Download
memory/1448-2-0x0000000005E30000-0x00000000063D4000-memory.dmp

Filesize
5.6MB

Download
memory/1448-3-0x00000000057D0000-0x0000000005862000-memory.dmp

Filesize
584KB

Download
memory/1448-4-0x00000000059A0000-0x00000000059AA000-memory.dmp

Filesize
40KB

Download
memory/4184-11-0x0000000000400000-0x0000000000448000-memory.dmp

Filesize
288KB

Download
memory/4184-21-0x0000000074DF0000-0x00000000755A0000-memory.dmp

Filesize
7.7MB

Download
memory/4184-17-0x0000000074DF0000-0x00000000755A0000-memory.dmp

Filesize
7.7MB

Download
memory/4184-16-0x0000000074DF0000-0x00000000755A0000-memory.dmp

Filesize
7.7MB

Download
memory/4184-14-0x0000000074DF0000-0x00000000755A0000-memory.dmp

Filesize
7.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads