asyncrat | 59c4eac59865fae0ef3c43a6126784583a168b57e73a8743ef5dd063dfd86d19

Analysis

max time kernel
121s
max time network
179s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-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 2684 set thread context of 2920	2684	.exe	31
PID 2920 set thread context of 3000	2920	cmd.exe	33

UPX packed file 2 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2684-0-0x000000013FFD0000-0x000000014004D000-memory.dmp	upx
behavioral1/memory/2684-18-0x000000013FFD0000-0x000000014004D000-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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	MSBuild.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2684	.exe
2684	.exe
2920	cmd.exe
2920	cmd.exe

Suspicious behavior: MapViewOfSection 3 IoCs

pid	Process
2684	.exe
2920	cmd.exe
2920	cmd.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3000	MSBuild.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 2684 wrote to memory of 2920	2684	.exe	31
PID 2684 wrote to memory of 2920	2684	.exe	31
PID 2684 wrote to memory of 2920	2684	.exe	31
PID 2684 wrote to memory of 2920	2684	.exe	31
PID 2684 wrote to memory of 2920	2684	.exe	31
PID 2920 wrote to memory of 3000	2920	cmd.exe	33
PID 2920 wrote to memory of 3000	2920	cmd.exe	33
PID 2920 wrote to memory of 3000	2920	cmd.exe	33
PID 2920 wrote to memory of 3000	2920	cmd.exe	33
PID 2920 wrote to memory of 3000	2920	cmd.exe	33
PID 2920 wrote to memory of 3000	2920	cmd.exe	33

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:2684
- 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:2920
- - 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:3000

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

Cab6DE2.tmp

Path C:\Users\Admin\AppData\Local\Temp\Cab6DE2.tmp
Size 70KB
SHA256 b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f
MD5 49aebf8cbd62d92ac215b2923fb1b9f5
SHA1 1723be06719828dda65ad804298d0431f6aff976
SHA512 bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b
SSDEEP 1536:gc257bHnClJ3v5mnAQEBP+bfnW8Ctl8G1G4eu76NWDdB34w18R5cBWcJAm68+Q:gp2ld5jPqW8LgeulxB3fgcEfDQ
MD5 SHA1 SHA512 SSDEEP

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dc7180d3

Path C:\Users\Admin\AppData\Local\Temp\dc7180d3
Size 777KB
SHA256 30fab7aed55c09cf8bcc99be09cfd76279eca365c39c4ea1018f3b390ef4afaa
MD5 f8a4271d1efc7ce858140da227e4a67b
SHA1 c6ee38732bd9668e25ae6ea206bf36f8b0ef67ce
SHA512 b400fbe2728edbdeaf2ff090d32ec95ceb91a5e95ed0d8e998b4be18521cbbe9a16260ff2a7f739f0a6aa88d4c053a5d99b2560dc9c7226915d9e0e02e52fde6
SSDEEP 24576:ynPjl0iwIAYnYnkP+dTVYAjQCqOtPCqvOBShCzbIq3FuFf:abuDIAgY6AjQCVPBOQhCa
MD5 SHA1 SHA512 SSDEEP

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memory/2684-0-0x000000013FFD0000-0x000000014004D000-memory.dmp

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memory/2684-1-0x000007FEF5E90000-0x000007FEF63DE000-memory.dmp

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memory/2684-2-0x000007FEF5B60000-0x000007FEF5CB8000-memory.dmp

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memory/2684-13-0x000007FEF5B79000-0x000007FEF5B7A000-memory.dmp

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memory/2684-14-0x000007FEF5B60000-0x000007FEF5CB8000-memory.dmp

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memory/2684-15-0x000007FEF5B60000-0x000007FEF5CB8000-memory.dmp

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memory/2684-18-0x000000013FFD0000-0x000000014004D000-memory.dmp

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memory/2920-68-0x000000007532E000-0x0000000075330000-memory.dmp

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memory/2920-46-0x0000000002D90000-0x0000000002DA0000-memory.dmp

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memory/2920-67-0x0000000002D90000-0x0000000002DA0000-memory.dmp

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memory/2920-66-0x0000000075320000-0x0000000075494000-memory.dmp

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memory/2920-69-0x0000000075320000-0x0000000075494000-memory.dmp

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memory/2920-72-0x0000000075320000-0x0000000075494000-memory.dmp

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memory/2920-75-0x000000007532E000-0x0000000075330000-memory.dmp

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memory/2920-20-0x0000000077B10000-0x0000000077CB9000-memory.dmp

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memory/3000-73-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

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memory/3000-74-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

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memory/3000-71-0x0000000073090000-0x00000000740F2000-memory.dmp

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memory/3000-76-0x0000000000400000-0x0000000000416000-memory.dmp

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