asyncrat | b94523ed66e252753367f93258e0139a2e013d117bdd2d2bc9cb2375f3d78d88

Analysis

max time kernel
95s
max time network
180s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
13-12-2024 13:23

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General

Target

DOCUMENTOS PARA COBRO JURIDICO RADICADO ANTE JUZGADO 975128101.exe
Size

1.2MB
MD5

9ac1ccb87569fa16ce4f57fd60523bb3
SHA1

3f941382a909b6d6669d4d43235692fd6da0668e
SHA256

d6d989a3805793f76689f4da4589a888feb464ddeb0e98406e237eab5086364e
SHA512

51a1621f6de2dabb3ab02c0adb75cad49a1f7334a211ff4ec1c523ce0f2f65cbe2dc9fa4a64691c9fa6a15c31e9de7535ea52f63562494c5d29e1a585b0acac5
SSDEEP

24576:RABqplgmH5Bh7+e3SNrndpNbkt3W153nPTpaenXIlt8BO+:/5Bh7MXNbktaYuXIoM+

Score

10^/10

asyncrat serverrenver discovery rat

Malware Config

Extracted

Family

asyncrat

Version

0.5.7A

Botnet

SERVERRENVER

renver.duckdns.org:6606

Mutex

uuooxuxbnkywum

Attributes

delay
1
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

Suspicious use of NtCreateUserProcessOtherParentProcess 1 IoCs

description	pid	Process	procid_target
PID 1100 created 3516	1100	DOCUMENTOS PARA COBRO JURIDICO RADICADO ANTE JUZGADO 975128101.exe	56

Drops startup file 1 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Keywords.vbs	DOCUMENTOS PARA COBRO JURIDICO RADICADO ANTE JUZGADO 975128101.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1100 set thread context of 4240	1100	DOCUMENTOS PARA COBRO JURIDICO RADICADO ANTE JUZGADO 975128101.exe	87

System Location Discovery: System Language Discovery 1 TTPs 2 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	InstallUtil.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	DOCUMENTOS PARA COBRO JURIDICO RADICADO ANTE JUZGADO 975128101.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
1100	DOCUMENTOS PARA COBRO JURIDICO RADICADO ANTE JUZGADO 975128101.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	1100	DOCUMENTOS PARA COBRO JURIDICO RADICADO ANTE JUZGADO 975128101.exe
Token: SeDebugPrivilege	1100	DOCUMENTOS PARA COBRO JURIDICO RADICADO ANTE JUZGADO 975128101.exe
Token: SeDebugPrivilege	4240	InstallUtil.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1100 wrote to memory of 4240	1100	DOCUMENTOS PARA COBRO JURIDICO RADICADO ANTE JUZGADO 975128101.exe	87
PID 1100 wrote to memory of 4240	1100	DOCUMENTOS PARA COBRO JURIDICO RADICADO ANTE JUZGADO 975128101.exe	87
PID 1100 wrote to memory of 4240	1100	DOCUMENTOS PARA COBRO JURIDICO RADICADO ANTE JUZGADO 975128101.exe	87
PID 1100 wrote to memory of 4240	1100	DOCUMENTOS PARA COBRO JURIDICO RADICADO ANTE JUZGADO 975128101.exe	87
PID 1100 wrote to memory of 4240	1100	DOCUMENTOS PARA COBRO JURIDICO RADICADO ANTE JUZGADO 975128101.exe	87
PID 1100 wrote to memory of 4240	1100	DOCUMENTOS PARA COBRO JURIDICO RADICADO ANTE JUZGADO 975128101.exe	87
PID 1100 wrote to memory of 4240	1100	DOCUMENTOS PARA COBRO JURIDICO RADICADO ANTE JUZGADO 975128101.exe	87
PID 1100 wrote to memory of 4240	1100	DOCUMENTOS PARA COBRO JURIDICO RADICADO ANTE JUZGADO 975128101.exe	87

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:3516
- C:\Users\Admin\AppData\Local\Temp\DOCUMENTOS PARA COBRO JURIDICO RADICADO ANTE JUZGADO 975128101.exe
  "C:\Users\Admin\AppData\Local\Temp\DOCUMENTOS PARA COBRO JURIDICO RADICADO ANTE JUZGADO 975128101.exe"
  2⤵
  - Suspicious use of NtCreateUserProcessOtherParentProcess
  - Drops startup file
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1100
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:4240

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

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

memory/1100-0-0x000000007535E000-0x000000007535F000-memory.dmp

Filesize
4KB

Download
memory/1100-1-0x0000000000290000-0x00000000003CC000-memory.dmp

Filesize
1.2MB

Download
memory/1100-2-0x0000000004D20000-0x0000000004E0A000-memory.dmp

Filesize
936KB

Download
memory/1100-12-0x0000000004D20000-0x0000000004E05000-memory.dmp

Filesize
916KB

Download
memory/1100-20-0x0000000004D20000-0x0000000004E05000-memory.dmp

Filesize
916KB

Download
memory/1100-66-0x0000000004D20000-0x0000000004E05000-memory.dmp

Filesize
916KB

Download
memory/1100-64-0x0000000004D20000-0x0000000004E05000-memory.dmp

Filesize
916KB

Download
memory/1100-62-0x0000000004D20000-0x0000000004E05000-memory.dmp

Filesize
916KB

Download
memory/1100-58-0x0000000004D20000-0x0000000004E05000-memory.dmp

Filesize
916KB

Download
memory/1100-54-0x0000000004D20000-0x0000000004E05000-memory.dmp

Filesize
916KB

Download
memory/1100-50-0x0000000004D20000-0x0000000004E05000-memory.dmp

Filesize
916KB

Download
memory/1100-46-0x0000000004D20000-0x0000000004E05000-memory.dmp

Filesize
916KB

Download
memory/1100-44-0x0000000004D20000-0x0000000004E05000-memory.dmp

Filesize
916KB

Download
memory/1100-42-0x0000000004D20000-0x0000000004E05000-memory.dmp

Filesize
916KB

Download
memory/1100-40-0x0000000004D20000-0x0000000004E05000-memory.dmp

Filesize
916KB

Download
memory/1100-38-0x0000000004D20000-0x0000000004E05000-memory.dmp

Filesize
916KB

Download
memory/1100-36-0x0000000004D20000-0x0000000004E05000-memory.dmp

Filesize
916KB

Download
memory/1100-34-0x0000000004D20000-0x0000000004E05000-memory.dmp

Filesize
916KB

Download
memory/1100-30-0x0000000004D20000-0x0000000004E05000-memory.dmp

Filesize
916KB

Download
memory/1100-28-0x0000000004D20000-0x0000000004E05000-memory.dmp

Filesize
916KB

Download
memory/1100-26-0x0000000004D20000-0x0000000004E05000-memory.dmp

Filesize
916KB

Download
memory/1100-24-0x0000000004D20000-0x0000000004E05000-memory.dmp

Filesize
916KB

Download
memory/1100-22-0x0000000004D20000-0x0000000004E05000-memory.dmp

Filesize
916KB

Download
memory/1100-18-0x0000000004D20000-0x0000000004E05000-memory.dmp

Filesize
916KB

Download
memory/1100-16-0x0000000004D20000-0x0000000004E05000-memory.dmp

Filesize
916KB

Download
memory/1100-14-0x0000000004D20000-0x0000000004E05000-memory.dmp

Filesize
916KB

Download
memory/1100-10-0x0000000004D20000-0x0000000004E05000-memory.dmp

Filesize
916KB

Download
memory/1100-8-0x0000000004D20000-0x0000000004E05000-memory.dmp

Filesize
916KB

Download
memory/1100-6-0x0000000004D20000-0x0000000004E05000-memory.dmp

Filesize
916KB

Download
memory/1100-4-0x0000000004D20000-0x0000000004E05000-memory.dmp

Filesize
916KB

Download
memory/1100-60-0x0000000004D20000-0x0000000004E05000-memory.dmp

Filesize
916KB

Download
memory/1100-56-0x0000000004D20000-0x0000000004E05000-memory.dmp

Filesize
916KB

Download
memory/1100-52-0x0000000004D20000-0x0000000004E05000-memory.dmp

Filesize
916KB

Download
memory/1100-48-0x0000000004D20000-0x0000000004E05000-memory.dmp

Filesize
916KB

Download
memory/1100-32-0x0000000004D20000-0x0000000004E05000-memory.dmp

Filesize
916KB

Download
memory/1100-3-0x0000000004D20000-0x0000000004E05000-memory.dmp

Filesize
916KB

Download
memory/1100-1179-0x0000000075350000-0x0000000075B00000-memory.dmp

Filesize
7.7MB

Download
memory/1100-1180-0x0000000075350000-0x0000000075B00000-memory.dmp

Filesize
7.7MB

Download
memory/1100-1181-0x0000000004EA0000-0x0000000004EFC000-memory.dmp

Filesize
368KB

Download
memory/1100-1182-0x0000000004F20000-0x0000000004F6C000-memory.dmp

Filesize
304KB

Download
memory/1100-1183-0x000000007535E000-0x000000007535F000-memory.dmp

Filesize
4KB

Download
memory/1100-1184-0x0000000075350000-0x0000000075B00000-memory.dmp

Filesize
7.7MB

Download
memory/1100-1185-0x0000000075350000-0x0000000075B00000-memory.dmp

Filesize
7.7MB

Download
memory/1100-1186-0x00000000058D0000-0x0000000005E74000-memory.dmp

Filesize
5.6MB

Download
memory/1100-1187-0x0000000005010000-0x0000000005064000-memory.dmp

Filesize
336KB

Download
memory/1100-1193-0x0000000075350000-0x0000000075B00000-memory.dmp

Filesize
7.7MB

Download
memory/1100-1196-0x0000000075350000-0x0000000075B00000-memory.dmp

Filesize
7.7MB

Download
memory/1100-1198-0x0000000075350000-0x0000000075B00000-memory.dmp

Filesize
7.7MB

Download
memory/4240-1197-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/4240-1199-0x0000000075350000-0x0000000075B00000-memory.dmp

Filesize
7.7MB

Download
memory/4240-1200-0x0000000075350000-0x0000000075B00000-memory.dmp

Filesize
7.7MB

Download
memory/4240-1203-0x0000000005AE0000-0x0000000005B7C000-memory.dmp

Filesize
624KB

Download
memory/4240-1204-0x0000000005BF0000-0x0000000005C56000-memory.dmp

Filesize
408KB

Download
memory/4240-1205-0x0000000075350000-0x0000000075B00000-memory.dmp

Filesize
7.7MB

Download