asyncrat | 068e03599b7f71f00c5ee9ee6b8d574cb722fa9b9302ef094cb8b99e94ea8ca1

General

Target

068e03599b7f71f00c5ee9ee6b8d574cb722fa9b9302ef094cb8b99e94ea8ca1.exe
Size

131KB
MD5

5393855b310e160d5643744a5ad1cc91
SHA1

a2b4b4504f1f272e33b18a6fbb98f4e5c0c371f2
SHA256

068e03599b7f71f00c5ee9ee6b8d574cb722fa9b9302ef094cb8b99e94ea8ca1
SHA512

ab1b87b32f79559b1d9756f982c8f992f86e0554de57abe19c6b5567ce0bd3c4cd275d0f3aa1a41c9ac18ea49f265f85d5a94967e0240cf840a8f779bbbd6b85
SSDEEP

3072:vWayOLin02remkN7l5cZcLVSZhYoCL26+9P46yf8GOrOfm:v3yOmBr0yyfi7NNy

Score

10^/10

asyncrat default discovery rat

Malware Config

Extracted

Family

asyncrat

Version

0.5.8

Botnet

Default

C2

85.28.47.123:7707

Mutex

QTApl4idKp8T

Attributes

delay
3
install
false
install_file
microsoftedge.exe
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 1 IoCs

description	pid	Process	procid_target
PID 2876 set thread context of 2728	2876	068e03599b7f71f00c5ee9ee6b8d574cb722fa9b9302ef094cb8b99e94ea8ca1.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	068e03599b7f71f00c5ee9ee6b8d574cb722fa9b9302ef094cb8b99e94ea8ca1.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegAsm.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2876	068e03599b7f71f00c5ee9ee6b8d574cb722fa9b9302ef094cb8b99e94ea8ca1.exe
2876	068e03599b7f71f00c5ee9ee6b8d574cb722fa9b9302ef094cb8b99e94ea8ca1.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2876	068e03599b7f71f00c5ee9ee6b8d574cb722fa9b9302ef094cb8b99e94ea8ca1.exe
Token: SeDebugPrivilege	2728	RegAsm.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 2876 wrote to memory of 2708	2876	068e03599b7f71f00c5ee9ee6b8d574cb722fa9b9302ef094cb8b99e94ea8ca1.exe	30
PID 2876 wrote to memory of 2708	2876	068e03599b7f71f00c5ee9ee6b8d574cb722fa9b9302ef094cb8b99e94ea8ca1.exe	30
PID 2876 wrote to memory of 2708	2876	068e03599b7f71f00c5ee9ee6b8d574cb722fa9b9302ef094cb8b99e94ea8ca1.exe	30
PID 2876 wrote to memory of 2708	2876	068e03599b7f71f00c5ee9ee6b8d574cb722fa9b9302ef094cb8b99e94ea8ca1.exe	30
PID 2876 wrote to memory of 2708	2876	068e03599b7f71f00c5ee9ee6b8d574cb722fa9b9302ef094cb8b99e94ea8ca1.exe	30
PID 2876 wrote to memory of 2708	2876	068e03599b7f71f00c5ee9ee6b8d574cb722fa9b9302ef094cb8b99e94ea8ca1.exe	30
PID 2876 wrote to memory of 2708	2876	068e03599b7f71f00c5ee9ee6b8d574cb722fa9b9302ef094cb8b99e94ea8ca1.exe	30
PID 2876 wrote to memory of 2728	2876	068e03599b7f71f00c5ee9ee6b8d574cb722fa9b9302ef094cb8b99e94ea8ca1.exe	31
PID 2876 wrote to memory of 2728	2876	068e03599b7f71f00c5ee9ee6b8d574cb722fa9b9302ef094cb8b99e94ea8ca1.exe	31
PID 2876 wrote to memory of 2728	2876	068e03599b7f71f00c5ee9ee6b8d574cb722fa9b9302ef094cb8b99e94ea8ca1.exe	31
PID 2876 wrote to memory of 2728	2876	068e03599b7f71f00c5ee9ee6b8d574cb722fa9b9302ef094cb8b99e94ea8ca1.exe	31
PID 2876 wrote to memory of 2728	2876	068e03599b7f71f00c5ee9ee6b8d574cb722fa9b9302ef094cb8b99e94ea8ca1.exe	31
PID 2876 wrote to memory of 2728	2876	068e03599b7f71f00c5ee9ee6b8d574cb722fa9b9302ef094cb8b99e94ea8ca1.exe	31
PID 2876 wrote to memory of 2728	2876	068e03599b7f71f00c5ee9ee6b8d574cb722fa9b9302ef094cb8b99e94ea8ca1.exe	31
PID 2876 wrote to memory of 2728	2876	068e03599b7f71f00c5ee9ee6b8d574cb722fa9b9302ef094cb8b99e94ea8ca1.exe	31
PID 2876 wrote to memory of 2728	2876	068e03599b7f71f00c5ee9ee6b8d574cb722fa9b9302ef094cb8b99e94ea8ca1.exe	31
PID 2876 wrote to memory of 2728	2876	068e03599b7f71f00c5ee9ee6b8d574cb722fa9b9302ef094cb8b99e94ea8ca1.exe	31
PID 2876 wrote to memory of 2728	2876	068e03599b7f71f00c5ee9ee6b8d574cb722fa9b9302ef094cb8b99e94ea8ca1.exe	31
PID 2876 wrote to memory of 2728	2876	068e03599b7f71f00c5ee9ee6b8d574cb722fa9b9302ef094cb8b99e94ea8ca1.exe	31

C:\Users\Admin\AppData\Local\Temp\068e03599b7f71f00c5ee9ee6b8d574cb722fa9b9302ef094cb8b99e94ea8ca1.exe
"C:\Users\Admin\AppData\Local\Temp\068e03599b7f71f00c5ee9ee6b8d574cb722fa9b9302ef094cb8b99e94ea8ca1.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2876
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
  2⤵
  PID:2708
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:2728

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\Cab7985.tmp

Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

Download Submit
memory/2728-5-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2728-8-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2728-7-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2728-6-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2728-12-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2728-10-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2728-4-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2728-3-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2876-2-0x0000000074C20000-0x000000007530E000-memory.dmp

Filesize
6.9MB

Download
memory/2876-0-0x0000000074C2E000-0x0000000074C2F000-memory.dmp

Filesize
4KB

Download
memory/2876-13-0x0000000074C20000-0x000000007530E000-memory.dmp

Filesize
6.9MB

Download
memory/2876-1-0x00000000001C0000-0x00000000001E8000-memory.dmp

Filesize
160KB

Download

Analysis

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