asyncrat | 7c8a5e6cf4e451d61157e113f431a1f3e606fba0e7147ffa9a8f429cb60e47d6

Analysis

max time kernel
150s
max time network
142s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
22-11-2024 00:53

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General

Target

Infected.exe
Size

63KB
MD5

9efaf6b98fdde9df4532d1236b60619f
SHA1

5d1414d09d54de16b04cd0cd05ccfc0692588fd1
SHA256

7c8a5e6cf4e451d61157e113f431a1f3e606fba0e7147ffa9a8f429cb60e47d6
SHA512

eabc2c58a7b2d636f13b149199f2dc943c4af3296c5a4605b72293294a449a2ea8da432238748ca2fb69fb944a31ac6fae7e5310cdc57609e5955f62b71e812d
SSDEEP

768:PHMvlKazXYN78NwC8A+XuqazcBRL5JTk1+T4KSBGHmDbD/ph0oXtKnk+SusdpqKX:EtTXA9dSJYUbdh9dJusdpqKmY7

Score

10^/10

asyncrat default rat

Malware Config

Extracted

Family

asyncrat

Botnet

Default

forums-appliances.gl.at.ply.gg:1962

Attributes

delay
1
install
true
install_file
windows.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
behavioral1/files/0x0007000000012117-15.dat	family_asyncrat

Executes dropped EXE 1 IoCs

pid	Process
2844	windows.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
2204	timeout.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
2360	schtasks.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
2384	Infected.exe
2384	Infected.exe
2384	Infected.exe
2384	Infected.exe
2384	Infected.exe
2844	windows.exe
2844	windows.exe
2844	windows.exe
2844	windows.exe
2844	windows.exe
2844	windows.exe
2844	windows.exe
2844	windows.exe
2844	windows.exe
2844	windows.exe
2844	windows.exe
2844	windows.exe
2844	windows.exe
2844	windows.exe
2844	windows.exe
2844	windows.exe
2844	windows.exe
2844	windows.exe
2844	windows.exe
2844	windows.exe
2844	windows.exe
2844	windows.exe
2844	windows.exe
2844	windows.exe
2844	windows.exe
2844	windows.exe
2844	windows.exe
2844	windows.exe
2844	windows.exe
2844	windows.exe
2844	windows.exe
2844	windows.exe
2844	windows.exe
2844	windows.exe
2844	windows.exe
2844	windows.exe
2844	windows.exe
2844	windows.exe
2844	windows.exe
2844	windows.exe
2844	windows.exe
2844	windows.exe
2844	windows.exe
2844	windows.exe
2844	windows.exe
2844	windows.exe
2844	windows.exe
2844	windows.exe
2844	windows.exe
2844	windows.exe
2844	windows.exe
2844	windows.exe
2844	windows.exe
2844	windows.exe
2844	windows.exe
2844	windows.exe
2844	windows.exe
2844	windows.exe
2844	windows.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	2384	Infected.exe
Token: SeDebugPrivilege	2384	Infected.exe
Token: SeDebugPrivilege	2844	windows.exe
Token: SeDebugPrivilege	2844	windows.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 2384 wrote to memory of 1156	2384	Infected.exe	30
PID 2384 wrote to memory of 1156	2384	Infected.exe	30
PID 2384 wrote to memory of 1156	2384	Infected.exe	30
PID 2384 wrote to memory of 2936	2384	Infected.exe	32
PID 2384 wrote to memory of 2936	2384	Infected.exe	32
PID 2384 wrote to memory of 2936	2384	Infected.exe	32
PID 1156 wrote to memory of 2360	1156	cmd.exe	34
PID 1156 wrote to memory of 2360	1156	cmd.exe	34
PID 1156 wrote to memory of 2360	1156	cmd.exe	34
PID 2936 wrote to memory of 2204	2936	cmd.exe	35
PID 2936 wrote to memory of 2204	2936	cmd.exe	35
PID 2936 wrote to memory of 2204	2936	cmd.exe	35
PID 2936 wrote to memory of 2844	2936	cmd.exe	36
PID 2936 wrote to memory of 2844	2936	cmd.exe	36
PID 2936 wrote to memory of 2844	2936	cmd.exe	36

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012

C:\Users\Admin\AppData\Local\Temp\Infected.exe
"C:\Users\Admin\AppData\Local\Temp\Infected.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2384
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "windows" /tr '"C:\Users\Admin\AppData\Roaming\windows.exe"' & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1156
- - C:\Windows\system32\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "windows" /tr '"C:\Users\Admin\AppData\Roaming\windows.exe"'
    3⤵
    - Scheduled Task/Job: Scheduled Task
    PID:2360
- C:\Windows\system32\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmp9F99.tmp.bat""
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2936
- - C:\Windows\system32\timeout.exe
    timeout 3
    3⤵
    - Delays execution with timeout.exe
    PID:2204
- - C:\Users\Admin\AppData\Roaming\windows.exe
    "C:\Users\Admin\AppData\Roaming\windows.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2844

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\CabB50F.tmp

Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp9F99.tmp.bat

Filesize
151B

MD5
46d94699bb016a8ae3ff9462e845470e

SHA1
32f7d5b9090c7a7f2473ff6712660173b3c6b3ce

SHA256
86d17f9799768e4b699dcbdebd70085134e66bc3c6fbad672cc07722c36f8d27

SHA512
e2db075f08a1139bf0ea98f16113d54fe87798975dc5b90fe65359d406ae153443e9e2c1bd9971fcc08341950f47467686502212bc205ce7dd84524978b1cfa7

Download Submit
C:\Users\Admin\AppData\Roaming\windows.exe

Filesize
63KB

MD5
9efaf6b98fdde9df4532d1236b60619f

SHA1
5d1414d09d54de16b04cd0cd05ccfc0692588fd1

SHA256
7c8a5e6cf4e451d61157e113f431a1f3e606fba0e7147ffa9a8f429cb60e47d6

SHA512
eabc2c58a7b2d636f13b149199f2dc943c4af3296c5a4605b72293294a449a2ea8da432238748ca2fb69fb944a31ac6fae7e5310cdc57609e5955f62b71e812d

Download Submit
memory/2384-0-0x000007FEF5923000-0x000007FEF5924000-memory.dmp

Filesize
4KB

Download
memory/2384-1-0x00000000009B0000-0x00000000009C6000-memory.dmp

Filesize
88KB

Download
memory/2384-2-0x000007FEF5920000-0x000007FEF630C000-memory.dmp

Filesize
9.9MB

Download
memory/2384-3-0x000007FEF5920000-0x000007FEF630C000-memory.dmp

Filesize
9.9MB

Download
memory/2384-12-0x000007FEF5920000-0x000007FEF630C000-memory.dmp

Filesize
9.9MB

Download
memory/2844-17-0x0000000000950000-0x0000000000966000-memory.dmp

Filesize
88KB

Download