asyncrat | 2ac2e1571a16168fb4ca930eb4b1a27fdbbff15f87384c13565f44fc22c4a8c7

Analysis

max time kernel
120s
max time network
121s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
08-12-2024 00:14

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General

Target

latencyx.exe
Size

45KB
MD5

f4c46528fb0b51636d9c5860e0e4048e
SHA1

76c0d55950b8e8995f0cc75d35f620f39d13ae1b
SHA256

2ac2e1571a16168fb4ca930eb4b1a27fdbbff15f87384c13565f44fc22c4a8c7
SHA512

aa6f1833ff1367bf938c2d52227707fb64c6ceaa5acbffd879150b094fc5a6b163e777ddbb7cc6cb33c3c15ec61ae7dbfc8c6462cf574bff43c88bf207fc80b9
SSDEEP

768:GuEs9THvkHCWU0neImo2q88maPol53APIkzjb+gX3i90yHCFB/JkAX1kBDZSx:GuEs9THc72cfob3lk3bBXS908CFnkAXh

Score

10^/10

asyncrat default discovery rat

Malware Config

Extracted

Family

asyncrat

Version

0.5.8

Botnet

Default

t1euvzy.localto.net:2171

t1euvzy.localto.net:55065

Mutex

ZpDC6oZwIVKp

Attributes

delay
3
install
false
install_file
dwmm.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

Deletes itself 1 IoCs

pid	Process
1828	cmd.exe

System Location Discovery: System Language Discovery 1 TTPs 3 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	latencyx.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	timeout.exe

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
2316	timeout.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	824	latencyx.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 824 wrote to memory of 1828	824	latencyx.exe	32
PID 824 wrote to memory of 1828	824	latencyx.exe	32
PID 824 wrote to memory of 1828	824	latencyx.exe	32
PID 824 wrote to memory of 1828	824	latencyx.exe	32
PID 1828 wrote to memory of 2316	1828	cmd.exe	34
PID 1828 wrote to memory of 2316	1828	cmd.exe	34
PID 1828 wrote to memory of 2316	1828	cmd.exe	34
PID 1828 wrote to memory of 2316	1828	cmd.exe	34

C:\Users\Admin\AppData\Local\Temp\latencyx.exe
"C:\Users\Admin\AppData\Local\Temp\latencyx.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:824
- C:\Windows\SysWOW64\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmp5B04.tmp.bat""
  2⤵
  - Deletes itself
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1828
- - C:\Windows\SysWOW64\timeout.exe
    timeout 3
    3⤵
    - System Location Discovery: System Language Discovery
    - Delays execution with timeout.exe
    PID:2316

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\CabF52A.tmp

Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

Download Submit
C:\Users\Admin\AppData\Local\Temp\Tar5A26.tmp

Filesize
181KB

MD5
4ea6026cf93ec6338144661bf1202cd1

SHA1
a1dec9044f750ad887935a01430bf49322fbdcb7

SHA256
8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8

SHA512
6c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp5B04.tmp.bat

Filesize
160B

MD5
18a9a35d12589abd619b5d212766aad0

SHA1
806cff3dbeaa06da95c81f446b19266095e2346f

SHA256
6d4f4e129bb5bdc9d4cdd55c7c78739def449ac3e1e482034d4327f5b698b270

SHA512
38f59bf37e6d0678960e165c053132f9745fb05f1f0b56539461556552a11488ce78ceb8d699051a26ac6b98af8d39eb8e1b0bf886b0db67511f2736ec883cc7

Download Submit
memory/824-0-0x0000000074CBE000-0x0000000074CBF000-memory.dmp

Filesize
4KB

Download
memory/824-1-0x0000000000A30000-0x0000000000A42000-memory.dmp

Filesize
72KB

Download
memory/824-2-0x0000000074CB0000-0x000000007539E000-memory.dmp

Filesize
6.9MB

Download
memory/824-19-0x0000000074CBE000-0x0000000074CBF000-memory.dmp

Filesize
4KB

Download
memory/824-20-0x0000000074CB0000-0x000000007539E000-memory.dmp

Filesize
6.9MB

Download
memory/824-22-0x0000000004190000-0x00000000041F4000-memory.dmp

Filesize
400KB

Download
memory/824-49-0x0000000074CB0000-0x000000007539E000-memory.dmp

Filesize
6.9MB

Download