asyncrat | b5f48fa1fd058f9e60e49ac03924d3bf7f752460bcbdaa442c79dfef9fb9f7e0

General

Target

2024-07-24_98b445bcd174036d984fdc8271595655_avoslocker.exe
Size

24.0MB
MD5

98b445bcd174036d984fdc8271595655
SHA1

25a765a9c844b28a697ef8b85874989c88f43b9f
SHA256

b5f48fa1fd058f9e60e49ac03924d3bf7f752460bcbdaa442c79dfef9fb9f7e0
SHA512

84f7d886e445264b3136dd8e996b176e519430153ddcb12bc7eed55b957696c8a5a028e3822cd7cfd77a71dc76967d8486642b381d3209d55ac8c08ee4dde818
SSDEEP

49152:ZqH7Bei/m+1q1BFx3unxRLC4PAl6mdTdUxK/ZayP3pgXWFVeVpPsSvPkD+z:M+7ZFVeVpU

Score

10^/10

asyncrat 23-julio discovery persistence rat

Malware Config

Extracted

Family

asyncrat

Version

1.0.7

Botnet

23-Julio

C2

tenfreehse.dynuddns.net:22077

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

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2958949473-3205530200-1453100116-1000\Software\Microsoft\Windows\CurrentVersion\Run\Mukaka = "C:\\Users\\Admin\\Documents\\Ounsa\\OOffupdater.exe"	2024-07-24_98b445bcd174036d984fdc8271595655_avoslocker.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2580 set thread context of 3060	2580	2024-07-24_98b445bcd174036d984fdc8271595655_avoslocker.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	2024-07-24_98b445bcd174036d984fdc8271595655_avoslocker.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	csc.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3060	csc.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2580 wrote to memory of 3060	2580	2024-07-24_98b445bcd174036d984fdc8271595655_avoslocker.exe	31
PID 2580 wrote to memory of 3060	2580	2024-07-24_98b445bcd174036d984fdc8271595655_avoslocker.exe	31
PID 2580 wrote to memory of 3060	2580	2024-07-24_98b445bcd174036d984fdc8271595655_avoslocker.exe	31
PID 2580 wrote to memory of 3060	2580	2024-07-24_98b445bcd174036d984fdc8271595655_avoslocker.exe	31
PID 2580 wrote to memory of 3060	2580	2024-07-24_98b445bcd174036d984fdc8271595655_avoslocker.exe	31
PID 2580 wrote to memory of 3060	2580	2024-07-24_98b445bcd174036d984fdc8271595655_avoslocker.exe	31

C:\Users\Admin\AppData\Local\Temp\2024-07-24_98b445bcd174036d984fdc8271595655_avoslocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-07-24_98b445bcd174036d984fdc8271595655_avoslocker.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2580
- 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:3060

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\Cab84C.tmp

Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

Download Submit
memory/2580-1-0x0000000000407000-0x0000000000421000-memory.dmp

Filesize
104KB

Download
memory/2580-0-0x0000000000400000-0x00000000005E8000-memory.dmp

Filesize
1.9MB

Download
memory/2580-2-0x0000000000400000-0x00000000005E8000-memory.dmp

Filesize
1.9MB

Download
memory/2580-4-0x0000000000400000-0x00000000005E8000-memory.dmp

Filesize
1.9MB

Download
memory/2580-3-0x0000000000400000-0x00000000005E8000-memory.dmp

Filesize
1.9MB

Download
memory/2580-5-0x0000000000400000-0x00000000005E8000-memory.dmp

Filesize
1.9MB

Download
memory/2580-13-0x0000000000400000-0x00000000005E8000-memory.dmp

Filesize
1.9MB

Download
memory/3060-8-0x0000000000080000-0x0000000000092000-memory.dmp

Filesize
72KB

Download
memory/3060-12-0x0000000000080000-0x0000000000092000-memory.dmp

Filesize
72KB

Download
memory/3060-10-0x0000000000080000-0x0000000000092000-memory.dmp

Filesize
72KB

Download
memory/3060-6-0x0000000000080000-0x0000000000092000-memory.dmp

Filesize
72KB

Download
memory/3060-14-0x000000007447E000-0x000000007447F000-memory.dmp

Filesize
4KB

Download
memory/3060-15-0x0000000074470000-0x0000000074B5E000-memory.dmp

Filesize
6.9MB

Download
memory/3060-7-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

Filesize
4KB

Download
memory/3060-32-0x000000007447E000-0x000000007447F000-memory.dmp

Filesize
4KB

Download
memory/3060-33-0x0000000074470000-0x0000000074B5E000-memory.dmp

Filesize
6.9MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads