asyncrat | 07fd311ad86a3f0e100796eb0aaf9960400e800992e9a39008e6432ca824c66d

Analysis

max time kernel
120s
max time network
115s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
26-11-2024 04:56

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General

Target

07fd311ad86a3f0e100796eb0aaf9960400e800992e9a39008e6432ca824c66dN.exe
Size

63KB
MD5

ab96f7fb7174a3056d894f91be3329a0
SHA1

588606b93b650594bf553ecb082c475fdf7ea4ae
SHA256

07fd311ad86a3f0e100796eb0aaf9960400e800992e9a39008e6432ca824c66d
SHA512

b7f8c5be8b319586c963003d068e720408178b1448ba2f6bd37b820a021faa4c1910df79a0c16673cf80633bb9e693182352daa387cd9d4f21d5361457620019
SSDEEP

768:otD5i7QHEU78j8C8A+XiV07hobtVZTnR48uyq1+T43SBGHmDbDBph0of3g4tyySj:GIgE8lwtNliQYUbrhB3g4AugdpqKmY7

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

Processes:

resource	yara_rule
behavioral2/files/0x000b000000023b67-11.dat	family_asyncrat

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

07fd311ad86a3f0e100796eb0aaf9960400e800992e9a39008e6432ca824c66dN.exe

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\Control Panel\International\Geo\Nation	07fd311ad86a3f0e100796eb0aaf9960400e800992e9a39008e6432ca824c66dN.exe

Executes dropped EXE 1 IoCs

Processes:

Grettaexecutor.exe

pid	Process
316	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

Processes:

timeout.exe

pid	Process
3972	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

Processes:

schtasks.exe

pid	Process
3508	schtasks.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

07fd311ad86a3f0e100796eb0aaf9960400e800992e9a39008e6432ca824c66dN.exeGrettaexecutor.exe

pid	Process
5056	07fd311ad86a3f0e100796eb0aaf9960400e800992e9a39008e6432ca824c66dN.exe
5056	07fd311ad86a3f0e100796eb0aaf9960400e800992e9a39008e6432ca824c66dN.exe
5056	07fd311ad86a3f0e100796eb0aaf9960400e800992e9a39008e6432ca824c66dN.exe
5056	07fd311ad86a3f0e100796eb0aaf9960400e800992e9a39008e6432ca824c66dN.exe
5056	07fd311ad86a3f0e100796eb0aaf9960400e800992e9a39008e6432ca824c66dN.exe
5056	07fd311ad86a3f0e100796eb0aaf9960400e800992e9a39008e6432ca824c66dN.exe
5056	07fd311ad86a3f0e100796eb0aaf9960400e800992e9a39008e6432ca824c66dN.exe
5056	07fd311ad86a3f0e100796eb0aaf9960400e800992e9a39008e6432ca824c66dN.exe
5056	07fd311ad86a3f0e100796eb0aaf9960400e800992e9a39008e6432ca824c66dN.exe
5056	07fd311ad86a3f0e100796eb0aaf9960400e800992e9a39008e6432ca824c66dN.exe
5056	07fd311ad86a3f0e100796eb0aaf9960400e800992e9a39008e6432ca824c66dN.exe
5056	07fd311ad86a3f0e100796eb0aaf9960400e800992e9a39008e6432ca824c66dN.exe
5056	07fd311ad86a3f0e100796eb0aaf9960400e800992e9a39008e6432ca824c66dN.exe
5056	07fd311ad86a3f0e100796eb0aaf9960400e800992e9a39008e6432ca824c66dN.exe
5056	07fd311ad86a3f0e100796eb0aaf9960400e800992e9a39008e6432ca824c66dN.exe
5056	07fd311ad86a3f0e100796eb0aaf9960400e800992e9a39008e6432ca824c66dN.exe
5056	07fd311ad86a3f0e100796eb0aaf9960400e800992e9a39008e6432ca824c66dN.exe
5056	07fd311ad86a3f0e100796eb0aaf9960400e800992e9a39008e6432ca824c66dN.exe
5056	07fd311ad86a3f0e100796eb0aaf9960400e800992e9a39008e6432ca824c66dN.exe
5056	07fd311ad86a3f0e100796eb0aaf9960400e800992e9a39008e6432ca824c66dN.exe
5056	07fd311ad86a3f0e100796eb0aaf9960400e800992e9a39008e6432ca824c66dN.exe
5056	07fd311ad86a3f0e100796eb0aaf9960400e800992e9a39008e6432ca824c66dN.exe
5056	07fd311ad86a3f0e100796eb0aaf9960400e800992e9a39008e6432ca824c66dN.exe
5056	07fd311ad86a3f0e100796eb0aaf9960400e800992e9a39008e6432ca824c66dN.exe
5056	07fd311ad86a3f0e100796eb0aaf9960400e800992e9a39008e6432ca824c66dN.exe
5056	07fd311ad86a3f0e100796eb0aaf9960400e800992e9a39008e6432ca824c66dN.exe
5056	07fd311ad86a3f0e100796eb0aaf9960400e800992e9a39008e6432ca824c66dN.exe
5056	07fd311ad86a3f0e100796eb0aaf9960400e800992e9a39008e6432ca824c66dN.exe
5056	07fd311ad86a3f0e100796eb0aaf9960400e800992e9a39008e6432ca824c66dN.exe
316	Grettaexecutor.exe
316	Grettaexecutor.exe
316	Grettaexecutor.exe
316	Grettaexecutor.exe
316	Grettaexecutor.exe
316	Grettaexecutor.exe
316	Grettaexecutor.exe
316	Grettaexecutor.exe
316	Grettaexecutor.exe
316	Grettaexecutor.exe
316	Grettaexecutor.exe
316	Grettaexecutor.exe
316	Grettaexecutor.exe
316	Grettaexecutor.exe
316	Grettaexecutor.exe
316	Grettaexecutor.exe
316	Grettaexecutor.exe
316	Grettaexecutor.exe
316	Grettaexecutor.exe
316	Grettaexecutor.exe
316	Grettaexecutor.exe
316	Grettaexecutor.exe
316	Grettaexecutor.exe
316	Grettaexecutor.exe
316	Grettaexecutor.exe
316	Grettaexecutor.exe
316	Grettaexecutor.exe
316	Grettaexecutor.exe
316	Grettaexecutor.exe
316	Grettaexecutor.exe
316	Grettaexecutor.exe
316	Grettaexecutor.exe
316	Grettaexecutor.exe
316	Grettaexecutor.exe
316	Grettaexecutor.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

07fd311ad86a3f0e100796eb0aaf9960400e800992e9a39008e6432ca824c66dN.exeGrettaexecutor.exe

description	pid	Process
Token: SeDebugPrivilege	5056	07fd311ad86a3f0e100796eb0aaf9960400e800992e9a39008e6432ca824c66dN.exe
Token: SeDebugPrivilege	316	Grettaexecutor.exe

Suspicious use of WriteProcessMemory 10 IoCs

Processes:

07fd311ad86a3f0e100796eb0aaf9960400e800992e9a39008e6432ca824c66dN.execmd.execmd.exe

description	pid	Process	procid_target
PID 5056 wrote to memory of 976	5056	07fd311ad86a3f0e100796eb0aaf9960400e800992e9a39008e6432ca824c66dN.exe	82
PID 5056 wrote to memory of 976	5056	07fd311ad86a3f0e100796eb0aaf9960400e800992e9a39008e6432ca824c66dN.exe	82
PID 5056 wrote to memory of 4632	5056	07fd311ad86a3f0e100796eb0aaf9960400e800992e9a39008e6432ca824c66dN.exe	84
PID 5056 wrote to memory of 4632	5056	07fd311ad86a3f0e100796eb0aaf9960400e800992e9a39008e6432ca824c66dN.exe	84
PID 976 wrote to memory of 3508	976	cmd.exe	86
PID 976 wrote to memory of 3508	976	cmd.exe	86
PID 4632 wrote to memory of 3972	4632	cmd.exe	87
PID 4632 wrote to memory of 3972	4632	cmd.exe	87
PID 4632 wrote to memory of 316	4632	cmd.exe	88
PID 4632 wrote to memory of 316	4632	cmd.exe	88

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\07fd311ad86a3f0e100796eb0aaf9960400e800992e9a39008e6432ca824c66dN.exe
"C:\Users\Admin\AppData\Local\Temp\07fd311ad86a3f0e100796eb0aaf9960400e800992e9a39008e6432ca824c66dN.exe"
1⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:5056
- 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:976
- - 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:3508
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp7A8F.tmp.bat""
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4632
- - C:\Windows\system32\timeout.exe
    timeout 3
    3⤵
    - Delays execution with timeout.exe
    PID:3972
- - 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:316

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\tmp7A8F.tmp.bat

Filesize
158B

MD5
93660e515bd1ced2d9d284f4999f4c30

SHA1
afc556fd955f444440c1c4fe292c517ff8eceaba

SHA256
3d817382bb99393b0bfd71eadb9e03e4b8018d403265071280f606abc8fc339f

SHA512
76e86dfdc1e0d9fa5ea1c3587833a0deec6a34eac7cbba26363133ce2de1bd788dfeaec82ea422945f4d13340dcda0d09bbcdb89465cf00f19bd1ef93e1e261e

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

Filesize
63KB

MD5
ab96f7fb7174a3056d894f91be3329a0

SHA1
588606b93b650594bf553ecb082c475fdf7ea4ae

SHA256
07fd311ad86a3f0e100796eb0aaf9960400e800992e9a39008e6432ca824c66d

SHA512
b7f8c5be8b319586c963003d068e720408178b1448ba2f6bd37b820a021faa4c1910df79a0c16673cf80633bb9e693182352daa387cd9d4f21d5361457620019

Download Submit
memory/5056-0-0x00007FFBD2923000-0x00007FFBD2925000-memory.dmp

Filesize
8KB

Download
memory/5056-1-0x00000000006D0000-0x00000000006E6000-memory.dmp

Filesize
88KB

Download
memory/5056-2-0x00007FFBD2920000-0x00007FFBD33E1000-memory.dmp

Filesize
10.8MB

Download
memory/5056-8-0x00007FFBD2920000-0x00007FFBD33E1000-memory.dmp

Filesize
10.8MB

Download
memory/5056-7-0x00007FFBD2920000-0x00007FFBD33E1000-memory.dmp

Filesize
10.8MB

Download