asyncrat | 59c4eac59865fae0ef3c43a6126784583a168b57e73a8743ef5dd063dfd86d19

Analysis

max time kernel
149s
max time network
176s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
23/10/2024, 16:49

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General

Target
DESCARGA NOTIFICACIÓN ELECTRÓNICA AGRADECEMOS CONFIRMAR RECIBIDO RADICADO 4534135431 00 654165135/.exe
Size 304KB
Sample241023-vb6ebszhmf
SHA256 116b75d94dacf676931ff8623a0b34f3ea75b52d67b0494fefd1b8dce6bc121a
MD5 411cd1175b5e21b6a3c6a72c34e8773c
SHA1 faabd22ddca0062dd3d7bc534e49078ee5d84be8
SHA512 6414d174a17edf813bb7f739b9d625c4489dd4a45c56932fad7f222a2b8ea646fd2316cdba4e421225cbdf4aeb245329aa5bb3034e2b54e3859dcd89c7d1dd90
SSDEEP 6144:VU1bbTLUcplb/PBA107iUJokz0HYmHvt9mC1xuhB0KY+c5+ZUkBgtPog/BCRs0p:61bwcpNPX+UJok4TvtsQxeo+c5+tBYPc
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

asyncrat 22 octubre discovery rat upx

Malware Config

Extracted

Family

asyncrat

Version

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

Botnet

22 OCTUBRE

151.duckdns.org:9003

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

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 4396 set thread context of 3580	4396	.exe	86
PID 3580 set thread context of 1516	3580	cmd.exe	98

UPX packed file 2 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/4396-0-0x00007FF797820000-0x00007FF79789D000-memory.dmp	upx
behavioral2/memory/4396-18-0x00007FF797820000-0x00007FF79789D000-memory.dmp	upx

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 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	MSBuild.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
4396	.exe
4396	.exe
3580	cmd.exe
3580	cmd.exe

Suspicious behavior: MapViewOfSection 3 IoCs

pid	Process
4396	.exe
3580	cmd.exe
3580	cmd.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1516	MSBuild.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 4396 wrote to memory of 3580	4396	.exe	86
PID 4396 wrote to memory of 3580	4396	.exe	86
PID 4396 wrote to memory of 3580	4396	.exe	86
PID 4396 wrote to memory of 3580	4396	.exe	86
PID 3580 wrote to memory of 1516	3580	cmd.exe	98
PID 3580 wrote to memory of 1516	3580	cmd.exe	98
PID 3580 wrote to memory of 1516	3580	cmd.exe	98
PID 3580 wrote to memory of 1516	3580	cmd.exe	98
PID 3580 wrote to memory of 1516	3580	cmd.exe	98

C:\Users\Admin\AppData\Local\Temp\DESCARGA NOTIFICACIÓN ELECTRÓNICA AGRADECEMOS CONFIRMAR RECIBIDO RADICADO 4534135431 00 654165135\.exe
"C:\Users\Admin\AppData\Local\Temp\DESCARGA NOTIFICACIÓN ELECTRÓNICA AGRADECEMOS CONFIRMAR RECIBIDO RADICADO 4534135431 00 654165135\.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:4396
- 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:3580
- - 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 use of AdjustPrivilegeToken
    PID:1516

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

530b1f7b

Path C:\Users\Admin\AppData\Local\Temp\530b1f7b
Size 777KB
SHA256 6358659d5ee5c6dac92112e3a51cbcd2b61183f55852ec12a476cfc8f6506bf2
MD5 33acc6c0f0336aa0ed1f399a4f4be794
SHA1 f816a7095d79e87a4b140275f498ad319547ef0c
SHA512 769b8280d79e4b365485111654385ff9ed54d4672f03d2d36a8a6c9aee4caae099fb1f067d023e2101862f0eb4a0f83f3c2e3be8929bf6ecab4189dbb9f8b1a1
SSDEEP 24576:RKrZeJ6d6YTbB50UfLLNB2WYgegZS5mjsDc5AtsbI:RKrZeJ6d6YTbB50wNB22RZmmw45I
MD5 SHA1 SHA512 SSDEEP

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memory/1516-35-0x00000000059E0000-0x0000000005A46000-memory.dmp

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memory/1516-34-0x0000000005F90000-0x0000000006534000-memory.dmp

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memory/1516-33-0x0000000005940000-0x00000000059DC000-memory.dmp

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memory/1516-30-0x0000000000950000-0x0000000000966000-memory.dmp

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memory/1516-27-0x0000000073670000-0x00000000748C4000-memory.dmp

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memory/3580-26-0x00000000750F0000-0x000000007526B000-memory.dmp

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memory/3580-20-0x00007FFFF05B0000-0x00007FFFF07A5000-memory.dmp

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memory/3580-23-0x00000000750FE000-0x0000000075100000-memory.dmp

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memory/3580-22-0x00000000750F0000-0x000000007526B000-memory.dmp

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memory/3580-24-0x00000000750F0000-0x000000007526B000-memory.dmp

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memory/4396-18-0x00007FF797820000-0x00007FF79789D000-memory.dmp

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memory/4396-0-0x00007FF797820000-0x00007FF79789D000-memory.dmp

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memory/4396-15-0x00007FFFD1390000-0x00007FFFD1502000-memory.dmp

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memory/4396-13-0x00007FFFD13A9000-0x00007FFFD13AA000-memory.dmp

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memory/4396-14-0x00007FFFD1390000-0x00007FFFD1502000-memory.dmp

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memory/4396-2-0x00007FFFD1390000-0x00007FFFD1502000-memory.dmp

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memory/4396-1-0x00007FFFD1700000-0x00007FFFD1C4E000-memory.dmp

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