asyncrat | 4acdc95e84a15b5af10b513c1629b3fac7f398c5c44f9445934ad0d7b81ac908

Analysis

max time kernel
148s
max time network
155s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
19/09/2024, 08:48

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General

Target

4acdc95e84a15b5af10b513c1629b3fac7f398c5c44f9445934ad0d7b81ac908.exe
Size

32.0MB
MD5

fb962c2aac3ebcb22bfe895c456a0d61
SHA1

0d44b7262f2656c22479bd45b2b05ef0a1364ab8
SHA256

4acdc95e84a15b5af10b513c1629b3fac7f398c5c44f9445934ad0d7b81ac908
SHA512

e75c5ae61181dccc1fc375cbffea2b4375da19d04ba6895436bf51adbcb284d64654db9272320fe1c7b10fc561c696a0e9efc8b7020123b761567822196d1423
SSDEEP

393216:h5nOYndLMIiWP/65X1Rme/o1NROh2gA/hcxVQU:7doIi/3R3/iJgyc7F

Score

10^/10

asyncrat default discovery execution persistence rat

Malware Config

Extracted

Family

asyncrat

Version

1.0.7

Botnet

Default

imperiodosabor.shop:8821

Mutex

wmplayer_Corporation

Attributes

delay
1
install
false
install_file
wmplayer.exe
install_folder
%AppData%

aes.plain

Signatures

AsyncRat
AsyncRAT is designed to remotely monitor and control other computers written in C#.
rat asyncrat

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

pid	Process
2736	powershell.exe

Executes dropped EXE 2 IoCs

pid	Process
5036	wmplayer.exe
3680	wmplayer.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-1-5-21-1194130065-3471212556-1656947724-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\wmplayer = "C:\\Users\\Admin\\AppData\\Roaming\\wmplayer.exe"	wmplayer.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 5036 set thread context of 3680	5036	wmplayer.exe	102

System Location Discovery: System Language Discovery 1 TTPs 9 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	4acdc95e84a15b5af10b513c1629b3fac7f398c5c44f9445934ad0d7b81ac908.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	wmplayer.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	wmplayer.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.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	powershell.exe

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-1194130065-3471212556-1656947724-1000_Classes\Local Settings	powershell.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
2736	powershell.exe
2736	powershell.exe
3244	powershell.exe
3068	powershell.exe
3244	powershell.exe
3068	powershell.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeDebugPrivilege	2736	powershell.exe
Token: SeDebugPrivilege	3244	powershell.exe
Token: SeDebugPrivilege	3068	powershell.exe
Token: SeDebugPrivilege	5036	wmplayer.exe
Token: SeDebugPrivilege	5036	wmplayer.exe
Token: SeDebugPrivilege	3680	wmplayer.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
820	javaw.exe

Suspicious use of WriteProcessMemory 31 IoCs

description	pid	Process	procid_target
PID 3112 wrote to memory of 2080	3112	4acdc95e84a15b5af10b513c1629b3fac7f398c5c44f9445934ad0d7b81ac908.exe	89
PID 3112 wrote to memory of 2080	3112	4acdc95e84a15b5af10b513c1629b3fac7f398c5c44f9445934ad0d7b81ac908.exe	89
PID 3112 wrote to memory of 2080	3112	4acdc95e84a15b5af10b513c1629b3fac7f398c5c44f9445934ad0d7b81ac908.exe	89
PID 2080 wrote to memory of 2736	2080	cmd.exe	91
PID 2080 wrote to memory of 2736	2080	cmd.exe	91
PID 2080 wrote to memory of 2736	2080	cmd.exe	91
PID 3112 wrote to memory of 4184	3112	4acdc95e84a15b5af10b513c1629b3fac7f398c5c44f9445934ad0d7b81ac908.exe	94
PID 3112 wrote to memory of 4184	3112	4acdc95e84a15b5af10b513c1629b3fac7f398c5c44f9445934ad0d7b81ac908.exe	94
PID 3112 wrote to memory of 4184	3112	4acdc95e84a15b5af10b513c1629b3fac7f398c5c44f9445934ad0d7b81ac908.exe	94
PID 3112 wrote to memory of 2592	3112	4acdc95e84a15b5af10b513c1629b3fac7f398c5c44f9445934ad0d7b81ac908.exe	95
PID 3112 wrote to memory of 2592	3112	4acdc95e84a15b5af10b513c1629b3fac7f398c5c44f9445934ad0d7b81ac908.exe	95
PID 3112 wrote to memory of 2592	3112	4acdc95e84a15b5af10b513c1629b3fac7f398c5c44f9445934ad0d7b81ac908.exe	95
PID 2592 wrote to memory of 3068	2592	cmd.exe	99
PID 2592 wrote to memory of 3068	2592	cmd.exe	99
PID 2592 wrote to memory of 3068	2592	cmd.exe	99
PID 4184 wrote to memory of 3244	4184	cmd.exe	98
PID 4184 wrote to memory of 3244	4184	cmd.exe	98
PID 4184 wrote to memory of 3244	4184	cmd.exe	98
PID 3244 wrote to memory of 820	3244	powershell.exe	100
PID 3244 wrote to memory of 820	3244	powershell.exe	100
PID 3068 wrote to memory of 5036	3068	powershell.exe	101
PID 3068 wrote to memory of 5036	3068	powershell.exe	101
PID 3068 wrote to memory of 5036	3068	powershell.exe	101
PID 5036 wrote to memory of 3680	5036	wmplayer.exe	102
PID 5036 wrote to memory of 3680	5036	wmplayer.exe	102
PID 5036 wrote to memory of 3680	5036	wmplayer.exe	102
PID 5036 wrote to memory of 3680	5036	wmplayer.exe	102
PID 5036 wrote to memory of 3680	5036	wmplayer.exe	102
PID 5036 wrote to memory of 3680	5036	wmplayer.exe	102
PID 5036 wrote to memory of 3680	5036	wmplayer.exe	102
PID 5036 wrote to memory of 3680	5036	wmplayer.exe	102

C:\Users\Admin\AppData\Local\Temp\4acdc95e84a15b5af10b513c1629b3fac7f398c5c44f9445934ad0d7b81ac908.exe
"C:\Users\Admin\AppData\Local\Temp\4acdc95e84a15b5af10b513c1629b3fac7f398c5c44f9445934ad0d7b81ac908.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3112
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c powershell -Command Add-MpPreference -ExclusionPath "C:\
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2080
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    powershell -Command Add-MpPreference -ExclusionPath "C:\
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2736
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c powershell "C:\Users\Public\Java.jar
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4184
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    powershell "C:\Users\Public\Java.jar
    3⤵
    - System Location Discovery: System Language Discovery
    - Modifies registry class
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:3244
  - - C:\Program Files\Java\jre-1.8\bin\javaw.exe
      "C:\Program Files\Java\jre-1.8\bin\javaw.exe" -jar "C:\Users\Public\Java.jar"
      4⤵
      Suspicious use of SetWindowsHookEx
      PID:820
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c powershell "C:\Users\Public\wmplayer.exe
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2592
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    powershell "C:\Users\Public\wmplayer.exe
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:3068
  - - C:\Users\Public\wmplayer.exe
      "C:\Users\Public\wmplayer.exe"
      4⤵
      Executes dropped EXE
      Adds Run key to start application
      Suspicious use of SetThreadContext
      System Location Discovery: System Language Discovery
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of WriteProcessMemory
      PID:5036
    - - C:\Users\Public\wmplayer.exe
        
        "C:\Users\Public\wmplayer.exe"
        5⤵
        Executes dropped EXE
        System Location Discovery: System Language Discovery
        Suspicious use of AdjustPrivilegeToken
        
        PID:3680

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

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\powershell.exe.log

Filesize
2KB

MD5
968cb9309758126772781b83adb8a28f

SHA1
8da30e71accf186b2ba11da1797cf67f8f78b47c

SHA256
92099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a

SHA512
4bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\wmplayer.exe.log

Filesize
805B

MD5
58a9108e39c2ea50e65c23be3a9407cf

SHA1
fb21f7b9330aa1a77080a3243b81b49035102d7b

SHA256
6049be83020702896a539b5c8c13270add224d7b91b3ee0bebc328791b74a84b

SHA512
93804ee8a4560503e47c07f5fa4a959e23355a01aba406c103d339debc9b2b1d20a345cdbb8d8069dac97b9151f228cf559ac3dde1500e3484fba1a4126842bf

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
18KB

MD5
833e8fb234eba9ab2b6097ac05fca0c1

SHA1
7c2de9b3eb1677b28df7d1be194549ec77c745fb

SHA256
e17f96af6e74dba1df12753d2f56763c22f52f00c922409d57cb8b1df432cc18

SHA512
2c183a531a4bf664abf6de39b30ec65f33791275b60b120caf01398dfc513a62921503b7056ba06ac02672631aa8192b87c17d0a3c516628a44d9cc85aee4687

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
11KB

MD5
7773744a076c02e1dd2179ecb750a02d

SHA1
21ee6c592233d7518258bd2e40e4b6c9aed48564

SHA256
6b76edcca73ad60d7dd38dc840787e398964598010d85b711ec3945b1ad15233

SHA512
766fb75264d2a9c04fa769939acd7427a0bec1b4384bb51b80d672d209c809d561a88e9c97195c9eda1451f473ae463b3905d44fd5aadeadffb9980bf0d15038

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_qkazfsdo.fcr.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Public\Java.jar

Filesize
11.7MB

MD5
140358d217ba48ecedca00e8b03c5abe

SHA1
d6f089dc09ebf168b05809a404e65bf65f0920be

SHA256
164236fceac19b8b5ebf842b94b99c263f3225dba28da7138f424b0d8e3aeb67

SHA512
ea1e771edf89716d1424d791813f57b8fcee5544d401e450c98ba7866f86fb7876a64d83bc8b9d3bc51e4557420f92b415d01ec93e31668b60ae3705658845cd

Download Submit
C:\Users\Public\wmplayer.exe

Filesize
4.4MB

MD5
12acf1859f6fc1c824484be4b632dbee

SHA1
5b901f0d34364835d6ea4c473c313fad8854f448

SHA256
25419a12766ebfd2eda94dd191ae105974c1e48347c2d96e2097e579e7af286b

SHA512
d4ef083bc8b8b500e8503536767899d233e79d74c126d9ea2e51743fb3759101d7c0c503096c209f49406bdb082695b32634643372d928b72ed08116a85b9032

Download Submit
memory/820-103-0x0000026861680000-0x0000026861681000-memory.dmp

Filesize
4KB

Download
memory/820-99-0x0000026861680000-0x0000026861681000-memory.dmp

Filesize
4KB

Download
memory/2736-37-0x0000000073FF0000-0x00000000747A0000-memory.dmp

Filesize
7.7MB

Download
memory/2736-5-0x0000000073FF0000-0x00000000747A0000-memory.dmp

Filesize
7.7MB

Download
memory/2736-10-0x0000000005AE0000-0x0000000005B46000-memory.dmp

Filesize
408KB

Download
memory/2736-20-0x0000000005C90000-0x0000000005FE4000-memory.dmp

Filesize
3.3MB

Download
memory/2736-21-0x0000000006290000-0x00000000062AE000-memory.dmp

Filesize
120KB

Download
memory/2736-22-0x0000000006340000-0x000000000638C000-memory.dmp

Filesize
304KB

Download
memory/2736-26-0x0000000073FF0000-0x00000000747A0000-memory.dmp

Filesize
7.7MB

Download
memory/2736-35-0x0000000006850000-0x000000000686E000-memory.dmp

Filesize
120KB

Download
memory/2736-24-0x000000006FE10000-0x000000006FE5C000-memory.dmp

Filesize
304KB

Download
memory/2736-23-0x0000000007250000-0x0000000007282000-memory.dmp

Filesize
200KB

Download
memory/2736-36-0x0000000007490000-0x0000000007533000-memory.dmp

Filesize
652KB

Download
memory/2736-3-0x0000000073FFE000-0x0000000073FFF000-memory.dmp

Filesize
4KB

Download
memory/2736-38-0x0000000073FF0000-0x00000000747A0000-memory.dmp

Filesize
7.7MB

Download
memory/2736-39-0x0000000007C00000-0x000000000827A000-memory.dmp

Filesize
6.5MB

Download
memory/2736-40-0x00000000075C0000-0x00000000075DA000-memory.dmp

Filesize
104KB

Download
memory/2736-41-0x0000000007630000-0x000000000763A000-memory.dmp

Filesize
40KB

Download
memory/2736-42-0x0000000007840000-0x00000000078D6000-memory.dmp

Filesize
600KB

Download
memory/2736-43-0x00000000077C0000-0x00000000077D1000-memory.dmp

Filesize
68KB

Download
memory/2736-44-0x00000000077F0000-0x00000000077FE000-memory.dmp

Filesize
56KB

Download
memory/2736-45-0x0000000007800000-0x0000000007814000-memory.dmp

Filesize
80KB

Download
memory/2736-46-0x0000000007900000-0x000000000791A000-memory.dmp

Filesize
104KB

Download
memory/2736-47-0x00000000078E0000-0x00000000078E8000-memory.dmp

Filesize
32KB

Download
memory/2736-50-0x0000000073FF0000-0x00000000747A0000-memory.dmp

Filesize
7.7MB

Download
memory/2736-9-0x0000000005370000-0x00000000053D6000-memory.dmp

Filesize
408KB

Download
memory/2736-4-0x0000000004CD0000-0x0000000004D06000-memory.dmp

Filesize
216KB

Download
memory/2736-8-0x00000000052D0000-0x00000000052F2000-memory.dmp

Filesize
136KB

Download
memory/2736-6-0x0000000005400000-0x0000000005A28000-memory.dmp

Filesize
6.2MB

Download
memory/2736-7-0x0000000073FF0000-0x00000000747A0000-memory.dmp

Filesize
7.7MB

Download
memory/3112-1-0x00000000004B0000-0x00000000024C8000-memory.dmp

Filesize
32.1MB

Download
memory/3112-0-0x0000000004BD0000-0x0000000004BD1000-memory.dmp

Filesize
4KB

Download
memory/3112-59-0x00000000004B0000-0x00000000024C8000-memory.dmp

Filesize
32.1MB

Download
memory/3112-56-0x00000000004B0000-0x00000000024C8000-memory.dmp

Filesize
32.1MB

Download
memory/3112-2-0x0000000004BD0000-0x0000000004BD1000-memory.dmp

Filesize
4KB

Download
memory/3244-81-0x00000000058B0000-0x00000000058FC000-memory.dmp

Filesize
304KB

Download
memory/3244-61-0x0000000005B80000-0x0000000005ED4000-memory.dmp

Filesize
3.3MB

Download
memory/3680-5018-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/5036-128-0x0000000006740000-0x000000000695E000-memory.dmp

Filesize
2.1MB

Download
memory/5036-132-0x0000000006740000-0x000000000695E000-memory.dmp

Filesize
2.1MB

Download
memory/5036-146-0x0000000006740000-0x000000000695E000-memory.dmp

Filesize
2.1MB

Download
memory/5036-138-0x0000000006740000-0x000000000695E000-memory.dmp

Filesize
2.1MB

Download
memory/5036-160-0x0000000006740000-0x000000000695E000-memory.dmp

Filesize
2.1MB

Download
memory/5036-158-0x0000000006740000-0x000000000695E000-memory.dmp

Filesize
2.1MB

Download
memory/5036-156-0x0000000006740000-0x000000000695E000-memory.dmp

Filesize
2.1MB

Download
memory/5036-154-0x0000000006740000-0x000000000695E000-memory.dmp

Filesize
2.1MB

Download
memory/5036-152-0x0000000006740000-0x000000000695E000-memory.dmp

Filesize
2.1MB

Download
memory/5036-150-0x0000000006740000-0x000000000695E000-memory.dmp

Filesize
2.1MB

Download
memory/5036-148-0x0000000006740000-0x000000000695E000-memory.dmp

Filesize
2.1MB

Download
memory/5036-105-0x0000000006F10000-0x00000000074B4000-memory.dmp

Filesize
5.6MB

Download
memory/5036-142-0x0000000006740000-0x000000000695E000-memory.dmp

Filesize
2.1MB

Download
memory/5036-144-0x0000000006740000-0x000000000695E000-memory.dmp

Filesize
2.1MB

Download
memory/5036-141-0x0000000006740000-0x000000000695E000-memory.dmp

Filesize
2.1MB

Download
memory/5036-136-0x0000000006740000-0x000000000695E000-memory.dmp

Filesize
2.1MB

Download
memory/5036-134-0x0000000006740000-0x000000000695E000-memory.dmp

Filesize
2.1MB

Download
memory/5036-106-0x0000000006960000-0x00000000069F2000-memory.dmp

Filesize
584KB

Download
memory/5036-130-0x0000000006740000-0x000000000695E000-memory.dmp

Filesize
2.1MB

Download
memory/5036-126-0x0000000006740000-0x000000000695E000-memory.dmp

Filesize
2.1MB

Download
memory/5036-124-0x0000000006740000-0x000000000695E000-memory.dmp

Filesize
2.1MB

Download
memory/5036-122-0x0000000006740000-0x000000000695E000-memory.dmp

Filesize
2.1MB

Download
memory/5036-120-0x0000000006740000-0x000000000695E000-memory.dmp

Filesize
2.1MB

Download
memory/5036-118-0x0000000006740000-0x000000000695E000-memory.dmp

Filesize
2.1MB

Download
memory/5036-116-0x0000000006740000-0x000000000695E000-memory.dmp

Filesize
2.1MB

Download
memory/5036-114-0x0000000006740000-0x000000000695E000-memory.dmp

Filesize
2.1MB

Download
memory/5036-112-0x0000000006740000-0x000000000695E000-memory.dmp

Filesize
2.1MB

Download
memory/5036-110-0x0000000006740000-0x000000000695E000-memory.dmp

Filesize
2.1MB

Download
memory/5036-108-0x0000000006740000-0x000000000695E000-memory.dmp

Filesize
2.1MB

Download
memory/5036-107-0x0000000006740000-0x000000000695E000-memory.dmp

Filesize
2.1MB

Download
memory/5036-5010-0x0000000006A70000-0x0000000006ACE000-memory.dmp

Filesize
376KB

Download
memory/5036-5011-0x0000000006AD0000-0x0000000006B1C000-memory.dmp

Filesize
304KB

Download
memory/5036-5012-0x0000000006B80000-0x0000000006BD4000-memory.dmp

Filesize
336KB

Download
memory/5036-104-0x0000000006740000-0x0000000006964000-memory.dmp

Filesize
2.1MB

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memory/5036-94-0x0000000000710000-0x0000000000B7C000-memory.dmp

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4.4MB

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