asyncrat | 711fa2f37c98dd9ca63a3743ab7a5ea650d58a36892d4239434fe28d61b29f4b

General

Target

711fa2f37c98dd9ca63a3743ab7a5ea650d58a36892d4239434fe28d61b29f4bN.exe
Size

62KB
MD5

7a648df051fe2ea64a48e838db113c60
SHA1

87ba0603b30ce10039740ac5809190e9f5dc4633
SHA256

711fa2f37c98dd9ca63a3743ab7a5ea650d58a36892d4239434fe28d61b29f4b
SHA512

c99ff7819e070ff5528096dfc86c026493d5213899ef1da8e23b8ec08da3c923d3a5d6c09a5892b222c65dc52723c9590ec2df6e709386fa1ed81e6a925b2854
SSDEEP

1536:pJjgqykF6I7/JbaFUBfN1Aam3v6kYLcMWB9bRW9fY8jr4dDxRWOT:XgqfFzbJbaF4N1AasvzYC09Njr4d/WOT

Score

10^/10

asyncrat default discovery rat

Malware Config

Extracted

Family

asyncrat

Version

0.5.8

Botnet

Default

C2

127.0.0.1:6606

127.0.0.1:7707

127.0.0.1:8808

Mutex

Y9gIvXtEyJsV

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
Asyncrat family
asyncrat

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2164 set thread context of 2120	2164	711fa2f37c98dd9ca63a3743ab7a5ea650d58a36892d4239434fe28d61b29f4bN.exe	32

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	711fa2f37c98dd9ca63a3743ab7a5ea650d58a36892d4239434fe28d61b29f4bN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegAsm.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2164	711fa2f37c98dd9ca63a3743ab7a5ea650d58a36892d4239434fe28d61b29f4bN.exe
2164	711fa2f37c98dd9ca63a3743ab7a5ea650d58a36892d4239434fe28d61b29f4bN.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2164	711fa2f37c98dd9ca63a3743ab7a5ea650d58a36892d4239434fe28d61b29f4bN.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 2164 wrote to memory of 1952	2164	711fa2f37c98dd9ca63a3743ab7a5ea650d58a36892d4239434fe28d61b29f4bN.exe	31
PID 2164 wrote to memory of 1952	2164	711fa2f37c98dd9ca63a3743ab7a5ea650d58a36892d4239434fe28d61b29f4bN.exe	31
PID 2164 wrote to memory of 1952	2164	711fa2f37c98dd9ca63a3743ab7a5ea650d58a36892d4239434fe28d61b29f4bN.exe	31
PID 2164 wrote to memory of 1952	2164	711fa2f37c98dd9ca63a3743ab7a5ea650d58a36892d4239434fe28d61b29f4bN.exe	31
PID 2164 wrote to memory of 1952	2164	711fa2f37c98dd9ca63a3743ab7a5ea650d58a36892d4239434fe28d61b29f4bN.exe	31
PID 2164 wrote to memory of 1952	2164	711fa2f37c98dd9ca63a3743ab7a5ea650d58a36892d4239434fe28d61b29f4bN.exe	31
PID 2164 wrote to memory of 1952	2164	711fa2f37c98dd9ca63a3743ab7a5ea650d58a36892d4239434fe28d61b29f4bN.exe	31
PID 2164 wrote to memory of 2120	2164	711fa2f37c98dd9ca63a3743ab7a5ea650d58a36892d4239434fe28d61b29f4bN.exe	32
PID 2164 wrote to memory of 2120	2164	711fa2f37c98dd9ca63a3743ab7a5ea650d58a36892d4239434fe28d61b29f4bN.exe	32
PID 2164 wrote to memory of 2120	2164	711fa2f37c98dd9ca63a3743ab7a5ea650d58a36892d4239434fe28d61b29f4bN.exe	32
PID 2164 wrote to memory of 2120	2164	711fa2f37c98dd9ca63a3743ab7a5ea650d58a36892d4239434fe28d61b29f4bN.exe	32
PID 2164 wrote to memory of 2120	2164	711fa2f37c98dd9ca63a3743ab7a5ea650d58a36892d4239434fe28d61b29f4bN.exe	32
PID 2164 wrote to memory of 2120	2164	711fa2f37c98dd9ca63a3743ab7a5ea650d58a36892d4239434fe28d61b29f4bN.exe	32
PID 2164 wrote to memory of 2120	2164	711fa2f37c98dd9ca63a3743ab7a5ea650d58a36892d4239434fe28d61b29f4bN.exe	32
PID 2164 wrote to memory of 2120	2164	711fa2f37c98dd9ca63a3743ab7a5ea650d58a36892d4239434fe28d61b29f4bN.exe	32
PID 2164 wrote to memory of 2120	2164	711fa2f37c98dd9ca63a3743ab7a5ea650d58a36892d4239434fe28d61b29f4bN.exe	32
PID 2164 wrote to memory of 2120	2164	711fa2f37c98dd9ca63a3743ab7a5ea650d58a36892d4239434fe28d61b29f4bN.exe	32
PID 2164 wrote to memory of 2120	2164	711fa2f37c98dd9ca63a3743ab7a5ea650d58a36892d4239434fe28d61b29f4bN.exe	32
PID 2164 wrote to memory of 2120	2164	711fa2f37c98dd9ca63a3743ab7a5ea650d58a36892d4239434fe28d61b29f4bN.exe	32

C:\Users\Admin\AppData\Local\Temp\711fa2f37c98dd9ca63a3743ab7a5ea650d58a36892d4239434fe28d61b29f4bN.exe
"C:\Users\Admin\AppData\Local\Temp\711fa2f37c98dd9ca63a3743ab7a5ea650d58a36892d4239434fe28d61b29f4bN.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2164
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
  2⤵
  PID:1952
- 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
  PID:2120

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

memory/2120-19-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2120-8-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2120-20-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2120-10-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2120-12-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2120-16-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2120-6-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2120-14-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2164-1-0x0000000000F50000-0x0000000000F66000-memory.dmp

Filesize
88KB

Download
memory/2164-0-0x000000007463E000-0x000000007463F000-memory.dmp

Filesize
4KB

Download
memory/2164-5-0x00000000004E0000-0x00000000004F4000-memory.dmp

Filesize
80KB

Download
memory/2164-4-0x0000000074630000-0x0000000074D1E000-memory.dmp

Filesize
6.9MB

Download
memory/2164-3-0x000000007463E000-0x000000007463F000-memory.dmp

Filesize
4KB

Download
memory/2164-2-0x0000000074630000-0x0000000074D1E000-memory.dmp

Filesize
6.9MB

Download
memory/2164-21-0x0000000074630000-0x0000000074D1E000-memory.dmp

Filesize
6.9MB

Download

Analysis

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