asyncrat | d34baac584dbdb97e38274818de69e3aaea8877962c4f50b0b67d51d36e5afcc

Analysis

max time kernel
120s
max time network
119s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
25/11/2024, 12:40

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General

Target

d34baac584dbdb97e38274818de69e3aaea8877962c4f50b0b67d51d36e5afcc.exe
Size

63KB
MD5

103629304104bf87dc75a086f3aebdb2
SHA1

6a03d4e5bba8c4ffb6c7432f948951b9c6064130
SHA256

d34baac584dbdb97e38274818de69e3aaea8877962c4f50b0b67d51d36e5afcc
SHA512

30647aa2adf2d7991385b730e15e9954b4b6ba58ab551850ab450b7f83c91b8c89f21de3bbf43fd4e9f858f65a1eac471b929821263c86966d16ead526206604
SSDEEP

768:otD5i7QHEU78j8C8A+XiV07hobtVZTnR48uyq1+T43SBGHmDbDBph0of3g4tyySI:GIgE8lwtNliQYUbrhB3g4AugdpqKmY7E

Score

10^/10

asyncrat default rat

Malware Config

Extracted

Family

asyncrat

Botnet

Default

127.0.0.1:4321

127.0.0.1:17567

company-parker.gl.at.ply.gg:4321

company-parker.gl.at.ply.gg:17567

Attributes

delay
1
install
true
install_file
Grettaexecutor.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/0x000800000001227e-15.dat	family_asyncrat

Executes dropped EXE 1 IoCs

pid	Process
2732	Grettaexecutor.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
2932	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
2656	schtasks.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
2448	d34baac584dbdb97e38274818de69e3aaea8877962c4f50b0b67d51d36e5afcc.exe
2448	d34baac584dbdb97e38274818de69e3aaea8877962c4f50b0b67d51d36e5afcc.exe
2448	d34baac584dbdb97e38274818de69e3aaea8877962c4f50b0b67d51d36e5afcc.exe
2448	d34baac584dbdb97e38274818de69e3aaea8877962c4f50b0b67d51d36e5afcc.exe
2448	d34baac584dbdb97e38274818de69e3aaea8877962c4f50b0b67d51d36e5afcc.exe
2732	Grettaexecutor.exe
2732	Grettaexecutor.exe
2732	Grettaexecutor.exe
2732	Grettaexecutor.exe
2732	Grettaexecutor.exe
2732	Grettaexecutor.exe
2732	Grettaexecutor.exe
2732	Grettaexecutor.exe
2732	Grettaexecutor.exe
2732	Grettaexecutor.exe
2732	Grettaexecutor.exe
2732	Grettaexecutor.exe
2732	Grettaexecutor.exe
2732	Grettaexecutor.exe
2732	Grettaexecutor.exe
2732	Grettaexecutor.exe
2732	Grettaexecutor.exe
2732	Grettaexecutor.exe
2732	Grettaexecutor.exe
2732	Grettaexecutor.exe
2732	Grettaexecutor.exe
2732	Grettaexecutor.exe
2732	Grettaexecutor.exe
2732	Grettaexecutor.exe
2732	Grettaexecutor.exe
2732	Grettaexecutor.exe
2732	Grettaexecutor.exe
2732	Grettaexecutor.exe
2732	Grettaexecutor.exe
2732	Grettaexecutor.exe
2732	Grettaexecutor.exe
2732	Grettaexecutor.exe
2732	Grettaexecutor.exe
2732	Grettaexecutor.exe
2732	Grettaexecutor.exe
2732	Grettaexecutor.exe
2732	Grettaexecutor.exe
2732	Grettaexecutor.exe
2732	Grettaexecutor.exe
2732	Grettaexecutor.exe
2732	Grettaexecutor.exe
2732	Grettaexecutor.exe
2732	Grettaexecutor.exe
2732	Grettaexecutor.exe
2732	Grettaexecutor.exe
2732	Grettaexecutor.exe
2732	Grettaexecutor.exe
2732	Grettaexecutor.exe
2732	Grettaexecutor.exe
2732	Grettaexecutor.exe
2732	Grettaexecutor.exe
2732	Grettaexecutor.exe
2732	Grettaexecutor.exe
2732	Grettaexecutor.exe
2732	Grettaexecutor.exe
2732	Grettaexecutor.exe
2732	Grettaexecutor.exe
2732	Grettaexecutor.exe
2732	Grettaexecutor.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2448	d34baac584dbdb97e38274818de69e3aaea8877962c4f50b0b67d51d36e5afcc.exe
Token: SeDebugPrivilege	2732	Grettaexecutor.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 2448 wrote to memory of 3020	2448	d34baac584dbdb97e38274818de69e3aaea8877962c4f50b0b67d51d36e5afcc.exe	30
PID 2448 wrote to memory of 3020	2448	d34baac584dbdb97e38274818de69e3aaea8877962c4f50b0b67d51d36e5afcc.exe	30
PID 2448 wrote to memory of 3020	2448	d34baac584dbdb97e38274818de69e3aaea8877962c4f50b0b67d51d36e5afcc.exe	30
PID 2448 wrote to memory of 3004	2448	d34baac584dbdb97e38274818de69e3aaea8877962c4f50b0b67d51d36e5afcc.exe	32
PID 2448 wrote to memory of 3004	2448	d34baac584dbdb97e38274818de69e3aaea8877962c4f50b0b67d51d36e5afcc.exe	32
PID 2448 wrote to memory of 3004	2448	d34baac584dbdb97e38274818de69e3aaea8877962c4f50b0b67d51d36e5afcc.exe	32
PID 3020 wrote to memory of 2656	3020	cmd.exe	34
PID 3020 wrote to memory of 2656	3020	cmd.exe	34
PID 3020 wrote to memory of 2656	3020	cmd.exe	34
PID 3004 wrote to memory of 2932	3004	cmd.exe	35
PID 3004 wrote to memory of 2932	3004	cmd.exe	35
PID 3004 wrote to memory of 2932	3004	cmd.exe	35
PID 3004 wrote to memory of 2732	3004	cmd.exe	36
PID 3004 wrote to memory of 2732	3004	cmd.exe	36
PID 3004 wrote to memory of 2732	3004	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\d34baac584dbdb97e38274818de69e3aaea8877962c4f50b0b67d51d36e5afcc.exe
"C:\Users\Admin\AppData\Local\Temp\d34baac584dbdb97e38274818de69e3aaea8877962c4f50b0b67d51d36e5afcc.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2448
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "Grettaexecutor" /tr '"C:\Users\Admin\AppData\Roaming\Grettaexecutor.exe"' & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3020
- - C:\Windows\system32\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "Grettaexecutor" /tr '"C:\Users\Admin\AppData\Roaming\Grettaexecutor.exe"'
    3⤵
    - Scheduled Task/Job: Scheduled Task
    PID:2656
- C:\Windows\system32\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmp5199.tmp.bat""
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3004
- - C:\Windows\system32\timeout.exe
    timeout 3
    3⤵
    - Delays execution with timeout.exe
    PID:2932
- - C:\Users\Admin\AppData\Roaming\Grettaexecutor.exe
    "C:\Users\Admin\AppData\Roaming\Grettaexecutor.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2732

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\tmp5199.tmp.bat

Filesize
158B

MD5
5e0aca5e91449989c5549efbac0daa99

SHA1
9d6e94ced199dae749ae704df988f43f06aa62ba

SHA256
491d5159cfcfa56142d9fe87f6bbdba93bf313d01f61b00971db2f05e16bb022

SHA512
4a842a8243dfae8e1074f0d651b99704bb95e78055402d37ee013e34653a95f6c7479c9d4bd1c52030d96d0fb774b00352dd0d3e9737d433f71aecca2f7cafc9

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

Filesize
63KB

MD5
103629304104bf87dc75a086f3aebdb2

SHA1
6a03d4e5bba8c4ffb6c7432f948951b9c6064130

SHA256
d34baac584dbdb97e38274818de69e3aaea8877962c4f50b0b67d51d36e5afcc

SHA512
30647aa2adf2d7991385b730e15e9954b4b6ba58ab551850ab450b7f83c91b8c89f21de3bbf43fd4e9f858f65a1eac471b929821263c86966d16ead526206604

Download Submit
memory/2448-0-0x000007FEF5F63000-0x000007FEF5F64000-memory.dmp

Filesize
4KB

Download
memory/2448-1-0x00000000008D0000-0x00000000008E6000-memory.dmp

Filesize
88KB

Download
memory/2448-2-0x000007FEF5F60000-0x000007FEF694C000-memory.dmp

Filesize
9.9MB

Download
memory/2448-3-0x000007FEF5F60000-0x000007FEF694C000-memory.dmp

Filesize
9.9MB

Download
memory/2448-13-0x000007FEF5F60000-0x000007FEF694C000-memory.dmp

Filesize
9.9MB

Download
memory/2732-17-0x00000000012F0000-0x0000000001306000-memory.dmp

Filesize
88KB

Download