asyncrat | b025ba88fa61a2bbbe5cb4c60ae4a62ece691f1a815e935dfd7f3380d4ee83bf

General

Target

3382-Se Emite Sentencia Tutela Rad. 2024-00933.exe
Size

1.1MB
MD5

4e7fda9cd23c67acfe518b282af1e4f0
SHA1

f85a4fa68517afd320b27c71de50504e14bde665
SHA256

dfb08f2c1fe6c64fbc795e82fd67ab8f691de0b26e4e18f53aa200bcdbdb93de
SHA512

c74aedbc70311043196f54e39b44a370dfa0cbf4fb4eba480b9ea7afd753f7769bbbd0e16b0679336435370c961b743a1de665937d351f34c88eed369d3c875b
SSDEEP

24576:YaZwmO1/zNeHASYzwkvKeKXLH1wQ2C3ygq2mk6tyP:umO1/zcAS0fv02gqWP

Score

10^/10

asyncrat bb discovery persistence rat

Malware Config

Extracted

Family

asyncrat

Version

1.0.7

Botnet

BB

C2

noviembre07.ydns.eu:2525

Mutex

DcRatMutex_qwqdanchun

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

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

3382-Se Emite Sentencia Tutela Rad. 2024-00933.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Windows\CurrentVersion\Run\ExplrerEnglishLanguage = "C:\\Users\\Admin\\Pictures\\EnglishExplorer\\Bin\\ExplorerEnglish.exe"	3382-Se Emite Sentencia Tutela Rad. 2024-00933.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

3382-Se Emite Sentencia Tutela Rad. 2024-00933.exe

description pid process target process

PID 2372 set thread context of 2400 2372 3382-Se Emite Sentencia Tutela Rad. 2024-00933.exe csc.exe

description	pid	process	target process
PID 2372 set thread context of 2400	2372	3382-Se Emite Sentencia Tutela Rad. 2024-00933.exe	csc.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:

3382-Se Emite Sentencia Tutela Rad. 2024-00933.execsc.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	3382-Se Emite Sentencia Tutela Rad. 2024-00933.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	csc.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

csc.exe

description pid process

Token: SeDebugPrivilege 2400 csc.exe

description	pid	process
Token: SeDebugPrivilege	2400	csc.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

3382-Se Emite Sentencia Tutela Rad. 2024-00933.exe

description	pid	process	target process
PID 2372 wrote to memory of 2400	2372	3382-Se Emite Sentencia Tutela Rad. 2024-00933.exe	csc.exe
PID 2372 wrote to memory of 2400	2372	3382-Se Emite Sentencia Tutela Rad. 2024-00933.exe	csc.exe
PID 2372 wrote to memory of 2400	2372	3382-Se Emite Sentencia Tutela Rad. 2024-00933.exe	csc.exe
PID 2372 wrote to memory of 2400	2372	3382-Se Emite Sentencia Tutela Rad. 2024-00933.exe	csc.exe
PID 2372 wrote to memory of 2400	2372	3382-Se Emite Sentencia Tutela Rad. 2024-00933.exe	csc.exe
PID 2372 wrote to memory of 2400	2372	3382-Se Emite Sentencia Tutela Rad. 2024-00933.exe	csc.exe

C:\Users\Admin\AppData\Local\Temp\3382-Se Emite Sentencia Tutela Rad. 2024-00933.exe
"C:\Users\Admin\AppData\Local\Temp\3382-Se Emite Sentencia Tutela Rad. 2024-00933.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2372
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:2400

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\CabC380.tmp

Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

Download Submit
memory/2372-16-0x0000000000400000-0x0000000000521000-memory.dmp

Filesize
1.1MB

Download
memory/2372-4-0x0000000000400000-0x0000000000521000-memory.dmp

Filesize
1.1MB

Download
memory/2372-10-0x0000000000400000-0x0000000000521000-memory.dmp

Filesize
1.1MB

Download
memory/2372-0-0x0000000000400000-0x0000000000521000-memory.dmp

Filesize
1.1MB

Download
memory/2372-6-0x0000000000400000-0x0000000000521000-memory.dmp

Filesize
1.1MB

Download
memory/2372-2-0x0000000000400000-0x0000000000521000-memory.dmp

Filesize
1.1MB

Download
memory/2372-19-0x0000000000436000-0x000000000044F000-memory.dmp

Filesize
100KB

Download
memory/2372-1-0x0000000000436000-0x000000000044F000-memory.dmp

Filesize
100KB

Download
memory/2372-5-0x0000000000400000-0x0000000000521000-memory.dmp

Filesize
1.1MB

Download
memory/2400-8-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

Filesize
4KB

Download
memory/2400-37-0x0000000074640000-0x0000000074D2E000-memory.dmp

Filesize
6.9MB

Download
memory/2400-7-0x0000000000080000-0x0000000000092000-memory.dmp

Filesize
72KB

Download
memory/2400-17-0x000000007464E000-0x000000007464F000-memory.dmp

Filesize
4KB

Download
memory/2400-18-0x0000000074640000-0x0000000074D2E000-memory.dmp

Filesize
6.9MB

Download
memory/2400-14-0x0000000000080000-0x0000000000092000-memory.dmp

Filesize
72KB

Download
memory/2400-9-0x0000000000080000-0x0000000000092000-memory.dmp

Filesize
72KB

Download
memory/2400-36-0x000000007464E000-0x000000007464F000-memory.dmp

Filesize
4KB

Download
memory/2400-12-0x0000000000080000-0x0000000000092000-memory.dmp

Filesize
72KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads