asyncrat | 441c8c73ea3f781774e9ee684d4d51127ec736c9fb6423fad0aea20695abd3c3

General

Target

441c8c73ea3f781774e9ee684d4d51127ec736c9fb6423fad0aea20695abd3c3.exe
Size

686KB
MD5

15fe2ac3357c534e280cc8d9de964aed
SHA1

af1e4824a0a4954c69fe91b6ad54e66a4f3a7511
SHA256

441c8c73ea3f781774e9ee684d4d51127ec736c9fb6423fad0aea20695abd3c3
SHA512

c32bfa3d04b1e67b2019afd9ee25b136e1880279f32a17a30128d2e574eb19578996167015cb620b91e3380186bc20b997045db426d4420ea4e1977b730acbdc
SSDEEP

12288:r8dStNKcItS4StNKcItSfl12tZ9uLUxL7HNHJTs2aInH5am38Dj11WWh2fab8fXk:r8yNK1t4NK1tOqLBCIHom383WxfaoXpe

Score

10^/10

asyncrat coke discovery rat

Malware Config

Extracted

Family

asyncrat

Version

0.5.8

Botnet

COKE

C2

quin.ydns.eu:1962

quin.ydns.eu:1940

185.38.142.240:1962

185.38.142.240:1940

Mutex

dLOEY8XRq1oB

Attributes

delay
3
install
false
install_file
windowsBook.exe
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 SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1916 set thread context of 2348	1916	441c8c73ea3f781774e9ee684d4d51127ec736c9fb6423fad0aea20695abd3c3.exe	30

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	441c8c73ea3f781774e9ee684d4d51127ec736c9fb6423fad0aea20695abd3c3.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	441c8c73ea3f781774e9ee684d4d51127ec736c9fb6423fad0aea20695abd3c3.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2348	441c8c73ea3f781774e9ee684d4d51127ec736c9fb6423fad0aea20695abd3c3.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 1916 wrote to memory of 2348	1916	441c8c73ea3f781774e9ee684d4d51127ec736c9fb6423fad0aea20695abd3c3.exe	30
PID 1916 wrote to memory of 2348	1916	441c8c73ea3f781774e9ee684d4d51127ec736c9fb6423fad0aea20695abd3c3.exe	30
PID 1916 wrote to memory of 2348	1916	441c8c73ea3f781774e9ee684d4d51127ec736c9fb6423fad0aea20695abd3c3.exe	30
PID 1916 wrote to memory of 2348	1916	441c8c73ea3f781774e9ee684d4d51127ec736c9fb6423fad0aea20695abd3c3.exe	30
PID 1916 wrote to memory of 2348	1916	441c8c73ea3f781774e9ee684d4d51127ec736c9fb6423fad0aea20695abd3c3.exe	30
PID 1916 wrote to memory of 2348	1916	441c8c73ea3f781774e9ee684d4d51127ec736c9fb6423fad0aea20695abd3c3.exe	30
PID 1916 wrote to memory of 2348	1916	441c8c73ea3f781774e9ee684d4d51127ec736c9fb6423fad0aea20695abd3c3.exe	30
PID 1916 wrote to memory of 2348	1916	441c8c73ea3f781774e9ee684d4d51127ec736c9fb6423fad0aea20695abd3c3.exe	30
PID 1916 wrote to memory of 2348	1916	441c8c73ea3f781774e9ee684d4d51127ec736c9fb6423fad0aea20695abd3c3.exe	30

C:\Users\Admin\AppData\Local\Temp\441c8c73ea3f781774e9ee684d4d51127ec736c9fb6423fad0aea20695abd3c3.exe
"C:\Users\Admin\AppData\Local\Temp\441c8c73ea3f781774e9ee684d4d51127ec736c9fb6423fad0aea20695abd3c3.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1916
- C:\Users\Admin\AppData\Local\Temp\441c8c73ea3f781774e9ee684d4d51127ec736c9fb6423fad0aea20695abd3c3.exe
  "C:\Users\Admin\AppData\Local\Temp\441c8c73ea3f781774e9ee684d4d51127ec736c9fb6423fad0aea20695abd3c3.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:2348

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\CabD3E4.tmp

Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

Download Submit
memory/1916-0-0x000000007469E000-0x000000007469F000-memory.dmp

Filesize
4KB

Download
memory/1916-1-0x0000000000B90000-0x0000000000C42000-memory.dmp

Filesize
712KB

Download
memory/1916-2-0x0000000074690000-0x0000000074D7E000-memory.dmp

Filesize
6.9MB

Download
memory/1916-3-0x00000000004C0000-0x00000000004DA000-memory.dmp

Filesize
104KB

Download
memory/1916-4-0x000000007469E000-0x000000007469F000-memory.dmp

Filesize
4KB

Download
memory/1916-5-0x0000000074690000-0x0000000074D7E000-memory.dmp

Filesize
6.9MB

Download
memory/1916-6-0x0000000005100000-0x0000000005156000-memory.dmp

Filesize
344KB

Download
memory/1916-24-0x0000000074690000-0x0000000074D7E000-memory.dmp

Filesize
6.9MB

Download
memory/2348-13-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2348-15-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2348-11-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2348-9-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2348-19-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2348-23-0x0000000074690000-0x0000000074D7E000-memory.dmp

Filesize
6.9MB

Download
memory/2348-22-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2348-17-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2348-25-0x0000000074690000-0x0000000074D7E000-memory.dmp

Filesize
6.9MB

Download
memory/2348-7-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2348-42-0x0000000074690000-0x0000000074D7E000-memory.dmp

Filesize
6.9MB

Download
memory/2348-43-0x0000000074690000-0x0000000074D7E000-memory.dmp

Filesize
6.9MB

Download

Analysis

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