asyncrat | 4738ba211b5dad2b4a22938c8947a4fd73fff8a4a41b1d82b7afc50159b142d0

Analysis

max time kernel
118s
max time network
162s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
29-10-2024 13:46

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General

Target

DOCUMENTOS DETALLADOS PARA CONTROL Y COBRO, PROCESO LEGAL 987452195412098416235616302549832310416334535675443006541.exe
Size

999KB
MD5

6431f7984d12c865aec4cda803fffe1a
SHA1

e34a2ced4f1b0bc8757d1b8c7d0c7461478601b3
SHA256

3f1c7adf6a76d7c313bf833ce9d41cd09ad28ece3c9d56e25a0561d30225c17f
SHA512

d54cf665dd7607befae35e971f21d4fa3f65c8af30838c0342f988b4f6db0ffb896da167f13c4cb2e1ddc8126fd9cf7cc65d6ba9ca33144482b692e9879835ff
SSDEEP

24576:lvFmm+Zq7F9+XTI9p/Vqh0CyTyQROqZVZXpWOseQty:UoDvfxpn3

Score

10^/10

asyncrat screem discovery rat

Malware Config

Extracted

Family

asyncrat

Version

0.5.7A

Botnet

SCREEM

screem1.duckdns.org:7707

screem1.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

Drops startup file 1 IoCs

Processes:

DOCUMENTOS DETALLADOS PARA CONTROL Y COBRO, PROCESO LEGAL 987452195412098416235616302549832310416334535675443006541.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Value.vbs	DOCUMENTOS DETALLADOS PARA CONTROL Y COBRO, PROCESO LEGAL 987452195412098416235616302549832310416334535675443006541.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

DOCUMENTOS DETALLADOS PARA CONTROL Y COBRO, PROCESO LEGAL 987452195412098416235616302549832310416334535675443006541.exe

description	pid	process	target process
PID 1900 set thread context of 5848	1900	DOCUMENTOS DETALLADOS PARA CONTROL Y COBRO, PROCESO LEGAL 987452195412098416235616302549832310416334535675443006541.exe	InstallUtil.exe

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

Processes:

DOCUMENTOS DETALLADOS PARA CONTROL Y COBRO, PROCESO LEGAL 987452195412098416235616302549832310416334535675443006541.exeInstallUtil.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	DOCUMENTOS DETALLADOS PARA CONTROL Y COBRO, PROCESO LEGAL 987452195412098416235616302549832310416334535675443006541.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	InstallUtil.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

DOCUMENTOS DETALLADOS PARA CONTROL Y COBRO, PROCESO LEGAL 987452195412098416235616302549832310416334535675443006541.exeInstallUtil.exe

description	pid	process
Token: SeDebugPrivilege	1900	DOCUMENTOS DETALLADOS PARA CONTROL Y COBRO, PROCESO LEGAL 987452195412098416235616302549832310416334535675443006541.exe
Token: SeDebugPrivilege	1900	DOCUMENTOS DETALLADOS PARA CONTROL Y COBRO, PROCESO LEGAL 987452195412098416235616302549832310416334535675443006541.exe
Token: SeDebugPrivilege	5848	InstallUtil.exe

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

DOCUMENTOS DETALLADOS PARA CONTROL Y COBRO, PROCESO LEGAL 987452195412098416235616302549832310416334535675443006541.exe

description	pid	process	target process
PID 1900 wrote to memory of 5848	1900	DOCUMENTOS DETALLADOS PARA CONTROL Y COBRO, PROCESO LEGAL 987452195412098416235616302549832310416334535675443006541.exe	InstallUtil.exe
PID 1900 wrote to memory of 5848	1900	DOCUMENTOS DETALLADOS PARA CONTROL Y COBRO, PROCESO LEGAL 987452195412098416235616302549832310416334535675443006541.exe	InstallUtil.exe
PID 1900 wrote to memory of 5848	1900	DOCUMENTOS DETALLADOS PARA CONTROL Y COBRO, PROCESO LEGAL 987452195412098416235616302549832310416334535675443006541.exe	InstallUtil.exe
PID 1900 wrote to memory of 5848	1900	DOCUMENTOS DETALLADOS PARA CONTROL Y COBRO, PROCESO LEGAL 987452195412098416235616302549832310416334535675443006541.exe	InstallUtil.exe
PID 1900 wrote to memory of 5848	1900	DOCUMENTOS DETALLADOS PARA CONTROL Y COBRO, PROCESO LEGAL 987452195412098416235616302549832310416334535675443006541.exe	InstallUtil.exe
PID 1900 wrote to memory of 5848	1900	DOCUMENTOS DETALLADOS PARA CONTROL Y COBRO, PROCESO LEGAL 987452195412098416235616302549832310416334535675443006541.exe	InstallUtil.exe
PID 1900 wrote to memory of 5848	1900	DOCUMENTOS DETALLADOS PARA CONTROL Y COBRO, PROCESO LEGAL 987452195412098416235616302549832310416334535675443006541.exe	InstallUtil.exe
PID 1900 wrote to memory of 5848	1900	DOCUMENTOS DETALLADOS PARA CONTROL Y COBRO, PROCESO LEGAL 987452195412098416235616302549832310416334535675443006541.exe	InstallUtil.exe
PID 1900 wrote to memory of 5848	1900	DOCUMENTOS DETALLADOS PARA CONTROL Y COBRO, PROCESO LEGAL 987452195412098416235616302549832310416334535675443006541.exe	InstallUtil.exe
PID 1900 wrote to memory of 5848	1900	DOCUMENTOS DETALLADOS PARA CONTROL Y COBRO, PROCESO LEGAL 987452195412098416235616302549832310416334535675443006541.exe	InstallUtil.exe
PID 1900 wrote to memory of 5848	1900	DOCUMENTOS DETALLADOS PARA CONTROL Y COBRO, PROCESO LEGAL 987452195412098416235616302549832310416334535675443006541.exe	InstallUtil.exe
PID 1900 wrote to memory of 5848	1900	DOCUMENTOS DETALLADOS PARA CONTROL Y COBRO, PROCESO LEGAL 987452195412098416235616302549832310416334535675443006541.exe	InstallUtil.exe

C:\Users\Admin\AppData\Local\Temp\DOCUMENTOS DETALLADOS PARA CONTROL Y COBRO, PROCESO LEGAL 987452195412098416235616302549832310416334535675443006541.exe
"C:\Users\Admin\AppData\Local\Temp\DOCUMENTOS DETALLADOS PARA CONTROL Y COBRO, PROCESO LEGAL 987452195412098416235616302549832310416334535675443006541.exe"
1⤵
- Drops startup file
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1900

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:5848

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

C:\Users\Admin\AppData\Local\Temp\Cab97DE.tmp

Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

Download Submit
memory/1900-0-0x000000007475E000-0x000000007475F000-memory.dmp

Filesize
4KB

Download
memory/1900-1-0x0000000001250000-0x000000000134E000-memory.dmp

Filesize
1016KB

Download
memory/1900-2-0x0000000004BC0000-0x0000000004CA8000-memory.dmp

Filesize
928KB

Download
memory/1900-3-0x0000000074750000-0x0000000074E3E000-memory.dmp

Filesize
6.9MB

Download
memory/1900-4-0x0000000004DB0000-0x0000000004E98000-memory.dmp

Filesize
928KB

Download
memory/1900-5-0x0000000004DB0000-0x0000000004E93000-memory.dmp

Filesize
908KB

Download
memory/1900-16-0x0000000004DB0000-0x0000000004E93000-memory.dmp

Filesize
908KB

Download
memory/1900-40-0x0000000004DB0000-0x0000000004E93000-memory.dmp

Filesize
908KB

Download
memory/1900-38-0x0000000004DB0000-0x0000000004E93000-memory.dmp

Filesize
908KB

Download
memory/1900-36-0x0000000004DB0000-0x0000000004E93000-memory.dmp

Filesize
908KB

Download
memory/1900-34-0x0000000004DB0000-0x0000000004E93000-memory.dmp

Filesize
908KB

Download
memory/1900-32-0x0000000004DB0000-0x0000000004E93000-memory.dmp

Filesize
908KB

Download
memory/1900-30-0x0000000004DB0000-0x0000000004E93000-memory.dmp

Filesize
908KB

Download
memory/1900-28-0x0000000004DB0000-0x0000000004E93000-memory.dmp

Filesize
908KB

Download
memory/1900-26-0x0000000004DB0000-0x0000000004E93000-memory.dmp

Filesize
908KB

Download
memory/1900-24-0x0000000004DB0000-0x0000000004E93000-memory.dmp

Filesize
908KB

Download
memory/1900-22-0x0000000004DB0000-0x0000000004E93000-memory.dmp

Filesize
908KB

Download
memory/1900-20-0x0000000004DB0000-0x0000000004E93000-memory.dmp

Filesize
908KB

Download
memory/1900-18-0x0000000004DB0000-0x0000000004E93000-memory.dmp

Filesize
908KB

Download
memory/1900-14-0x0000000004DB0000-0x0000000004E93000-memory.dmp

Filesize
908KB

Download
memory/1900-12-0x0000000004DB0000-0x0000000004E93000-memory.dmp

Filesize
908KB

Download
memory/1900-10-0x0000000004DB0000-0x0000000004E93000-memory.dmp

Filesize
908KB

Download
memory/1900-8-0x0000000004DB0000-0x0000000004E93000-memory.dmp

Filesize
908KB

Download
memory/1900-6-0x0000000004DB0000-0x0000000004E93000-memory.dmp

Filesize
908KB

Download
memory/1900-42-0x0000000004DB0000-0x0000000004E93000-memory.dmp

Filesize
908KB

Download
memory/1900-44-0x0000000004DB0000-0x0000000004E93000-memory.dmp

Filesize
908KB

Download
memory/1900-52-0x0000000004DB0000-0x0000000004E93000-memory.dmp

Filesize
908KB

Download
memory/1900-50-0x0000000004DB0000-0x0000000004E93000-memory.dmp

Filesize
908KB

Download
memory/1900-48-0x0000000004DB0000-0x0000000004E93000-memory.dmp

Filesize
908KB

Download
memory/1900-46-0x0000000004DB0000-0x0000000004E93000-memory.dmp

Filesize
908KB

Download
memory/1900-54-0x0000000004DB0000-0x0000000004E93000-memory.dmp

Filesize
908KB

Download
memory/1900-56-0x0000000004DB0000-0x0000000004E93000-memory.dmp

Filesize
908KB

Download
memory/1900-58-0x0000000004DB0000-0x0000000004E93000-memory.dmp

Filesize
908KB

Download
memory/1900-60-0x0000000004DB0000-0x0000000004E93000-memory.dmp

Filesize
908KB

Download
memory/1900-62-0x0000000004DB0000-0x0000000004E93000-memory.dmp

Filesize
908KB

Download
memory/1900-64-0x0000000004DB0000-0x0000000004E93000-memory.dmp

Filesize
908KB

Download
memory/1900-66-0x0000000004DB0000-0x0000000004E93000-memory.dmp

Filesize
908KB

Download
memory/1900-68-0x0000000004DB0000-0x0000000004E93000-memory.dmp

Filesize
908KB

Download
memory/1900-1079-0x0000000074750000-0x0000000074E3E000-memory.dmp

Filesize
6.9MB

Download
memory/1900-1080-0x00000000011B0000-0x000000000120C000-memory.dmp

Filesize
368KB

Download
memory/1900-1081-0x0000000000C10000-0x0000000000C5C000-memory.dmp

Filesize
304KB

Download
memory/1900-1082-0x000000007475E000-0x000000007475F000-memory.dmp

Filesize
4KB

Download
memory/1900-1083-0x0000000074750000-0x0000000074E3E000-memory.dmp

Filesize
6.9MB

Download
memory/1900-1084-0x0000000001120000-0x0000000001174000-memory.dmp

Filesize
336KB

Download
memory/1900-1103-0x0000000074750000-0x0000000074E3E000-memory.dmp

Filesize
6.9MB

Download
memory/5848-1102-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/5848-1104-0x0000000074750000-0x0000000074E3E000-memory.dmp

Filesize
6.9MB

Download
memory/5848-1105-0x0000000074750000-0x0000000074E3E000-memory.dmp

Filesize
6.9MB

Download
memory/5848-1122-0x0000000074750000-0x0000000074E3E000-memory.dmp

Filesize
6.9MB

Download