asyncrat | e64bf07778d6213ab62a2e94e764053d4378192b836715aa6552405de1e15832

General

Target

e64bf07778d6213ab62a2e94e764053d4378192b836715aa6552405de1e15832.exe
Size

534KB
MD5

9533800ff0c1ef9979f705d23d0a625a
SHA1

818521b032199079f6757cad27c3f5f073a131f6
SHA256

e64bf07778d6213ab62a2e94e764053d4378192b836715aa6552405de1e15832
SHA512

7f4866986310f3b20e5fdcd46f4cb61fb2d8d6c840457b77ffd1378a84901345b2e6a6b4864836eafd5b8f9764871c255feb88a0adf5b2cfee06962f403128ae
SSDEEP

12288:ZBBJwlsFlt4krssP9go6toOmpb0l65xraLr:5mibd1gbwpbW65x

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 2564 set thread context of 2532	2564	e64bf07778d6213ab62a2e94e764053d4378192b836715aa6552405de1e15832.exe	31

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	e64bf07778d6213ab62a2e94e764053d4378192b836715aa6552405de1e15832.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	e64bf07778d6213ab62a2e94e764053d4378192b836715aa6552405de1e15832.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2564	e64bf07778d6213ab62a2e94e764053d4378192b836715aa6552405de1e15832.exe
2564	e64bf07778d6213ab62a2e94e764053d4378192b836715aa6552405de1e15832.exe
2564	e64bf07778d6213ab62a2e94e764053d4378192b836715aa6552405de1e15832.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2564	e64bf07778d6213ab62a2e94e764053d4378192b836715aa6552405de1e15832.exe
Token: SeDebugPrivilege	2532	e64bf07778d6213ab62a2e94e764053d4378192b836715aa6552405de1e15832.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 2564 wrote to memory of 2532	2564	e64bf07778d6213ab62a2e94e764053d4378192b836715aa6552405de1e15832.exe	31
PID 2564 wrote to memory of 2532	2564	e64bf07778d6213ab62a2e94e764053d4378192b836715aa6552405de1e15832.exe	31
PID 2564 wrote to memory of 2532	2564	e64bf07778d6213ab62a2e94e764053d4378192b836715aa6552405de1e15832.exe	31
PID 2564 wrote to memory of 2532	2564	e64bf07778d6213ab62a2e94e764053d4378192b836715aa6552405de1e15832.exe	31
PID 2564 wrote to memory of 2532	2564	e64bf07778d6213ab62a2e94e764053d4378192b836715aa6552405de1e15832.exe	31
PID 2564 wrote to memory of 2532	2564	e64bf07778d6213ab62a2e94e764053d4378192b836715aa6552405de1e15832.exe	31
PID 2564 wrote to memory of 2532	2564	e64bf07778d6213ab62a2e94e764053d4378192b836715aa6552405de1e15832.exe	31
PID 2564 wrote to memory of 2532	2564	e64bf07778d6213ab62a2e94e764053d4378192b836715aa6552405de1e15832.exe	31
PID 2564 wrote to memory of 2532	2564	e64bf07778d6213ab62a2e94e764053d4378192b836715aa6552405de1e15832.exe	31

C:\Users\Admin\AppData\Local\Temp\e64bf07778d6213ab62a2e94e764053d4378192b836715aa6552405de1e15832.exe
"C:\Users\Admin\AppData\Local\Temp\e64bf07778d6213ab62a2e94e764053d4378192b836715aa6552405de1e15832.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2564
- C:\Users\Admin\AppData\Local\Temp\e64bf07778d6213ab62a2e94e764053d4378192b836715aa6552405de1e15832.exe
  "C:\Users\Admin\AppData\Local\Temp\e64bf07778d6213ab62a2e94e764053d4378192b836715aa6552405de1e15832.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:2532

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\Cab21F4.tmp

Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

Download Submit
memory/2532-9-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2532-42-0x00000000749F0000-0x00000000750DE000-memory.dmp

Filesize
6.9MB

Download
memory/2532-43-0x00000000749F0000-0x00000000750DE000-memory.dmp

Filesize
6.9MB

Download
memory/2532-25-0x00000000749F0000-0x00000000750DE000-memory.dmp

Filesize
6.9MB

Download
memory/2532-23-0x00000000749F0000-0x00000000750DE000-memory.dmp

Filesize
6.9MB

Download
memory/2532-11-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2532-7-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2532-22-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2532-19-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2532-17-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2532-15-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2532-13-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2564-5-0x00000000749F0000-0x00000000750DE000-memory.dmp

Filesize
6.9MB

Download
memory/2564-6-0x00000000054A0000-0x00000000054F4000-memory.dmp

Filesize
336KB

Download
memory/2564-24-0x00000000749F0000-0x00000000750DE000-memory.dmp

Filesize
6.9MB

Download
memory/2564-0-0x00000000749FE000-0x00000000749FF000-memory.dmp

Filesize
4KB

Download
memory/2564-4-0x00000000749FE000-0x00000000749FF000-memory.dmp

Filesize
4KB

Download
memory/2564-3-0x0000000000930000-0x000000000094E000-memory.dmp

Filesize
120KB

Download
memory/2564-2-0x00000000749F0000-0x00000000750DE000-memory.dmp

Filesize
6.9MB

Download
memory/2564-1-0x0000000000960000-0x00000000009EC000-memory.dmp

Filesize
560KB

Download

Analysis

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