asyncrat | 5cdb7749ab92f641e1e1c77bb1c98f13035d85390e1b8f7a051f5d766a98eb38

Analysis

max time kernel
122s
max time network
181s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
03/12/2024, 22:46

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General

Target

OKL_4928472847824..exe
Size

945KB
MD5

9b54e790a4bf5db73e90b08c94eb542a
SHA1

f60455f1338a85bbdc365e4714c184f75e8d383a
SHA256

716c50de230f15003dcac3de58c98751e012d8e39f42423b1de4d69e8fd847ad
SHA512

abe695847b0ef7eb050c01772088174375b62d4f32ae2da08bee840832b07827607da99caa43e0b1b78ecbb9c542a84815550f6bfc7fbd4faa0f6d36348e98c7
SSDEEP

24576:xj9dtZrhWZvkWoIhOwZIFTuLJiU5S52nseptJjTRvmkxzMO:p9xWvkWoKNGTuLJiU5S52ssLjYkKO

Score

10^/10

asyncrat zcoopor-llega discovery rat

Malware Config

Extracted

Family

asyncrat

Version

1.0.7

Botnet

ZCOOPOR-LLEGA

8529pt.4cloud.click:8529

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
Asyncrat family
asyncrat

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2636 set thread context of 2772	2636	OKL_4928472847824..exe	30

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	OKL_4928472847824..exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	csc.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2772	csc.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2636 wrote to memory of 2772	2636	OKL_4928472847824..exe	30
PID 2636 wrote to memory of 2772	2636	OKL_4928472847824..exe	30
PID 2636 wrote to memory of 2772	2636	OKL_4928472847824..exe	30
PID 2636 wrote to memory of 2772	2636	OKL_4928472847824..exe	30
PID 2636 wrote to memory of 2772	2636	OKL_4928472847824..exe	30
PID 2636 wrote to memory of 2772	2636	OKL_4928472847824..exe	30

C:\Users\Admin\AppData\Local\Temp\OKL_4928472847824..exe
"C:\Users\Admin\AppData\Local\Temp\OKL_4928472847824..exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2636
- 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:2772

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\Cab8CC7.tmp

Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

Download Submit
memory/2636-15-0x00000000004D2000-0x00000000004F1000-memory.dmp

Filesize
124KB

Download
memory/2636-5-0x0000000000400000-0x00000000004F1000-memory.dmp

Filesize
964KB

Download
memory/2636-6-0x0000000000400000-0x00000000004F1000-memory.dmp

Filesize
964KB

Download
memory/2636-4-0x0000000000400000-0x00000000004F1000-memory.dmp

Filesize
964KB

Download
memory/2636-3-0x0000000000400000-0x00000000004F1000-memory.dmp

Filesize
964KB

Download
memory/2636-7-0x0000000000400000-0x00000000004F1000-memory.dmp

Filesize
964KB

Download
memory/2636-0-0x0000000000400000-0x00000000004F1000-memory.dmp

Filesize
964KB

Download
memory/2636-11-0x0000000000400000-0x00000000004F1000-memory.dmp

Filesize
964KB

Download
memory/2636-1-0x0000000000408000-0x0000000000420000-memory.dmp

Filesize
96KB

Download
memory/2636-13-0x0000000000408000-0x0000000000420000-memory.dmp

Filesize
96KB

Download
memory/2636-14-0x0000000000400000-0x00000000004F1000-memory.dmp

Filesize
964KB

Download
memory/2772-19-0x0000000000080000-0x0000000000092000-memory.dmp

Filesize
72KB

Download
memory/2772-17-0x0000000000080000-0x0000000000092000-memory.dmp

Filesize
72KB

Download
memory/2772-8-0x0000000000080000-0x0000000000092000-memory.dmp

Filesize
72KB

Download
memory/2772-9-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

Filesize
4KB

Download
memory/2772-20-0x00000000742CE000-0x00000000742CF000-memory.dmp

Filesize
4KB

Download
memory/2772-21-0x00000000742C0000-0x00000000749AE000-memory.dmp

Filesize
6.9MB

Download
memory/2772-10-0x0000000000080000-0x0000000000092000-memory.dmp

Filesize
72KB

Download
memory/2772-38-0x00000000742CE000-0x00000000742CF000-memory.dmp

Filesize
4KB

Download
memory/2772-39-0x00000000742C0000-0x00000000749AE000-memory.dmp

Filesize
6.9MB

Download