asyncrat | 07fd311ad86a3f0e100796eb0aaf9960400e800992e9a39008e6432ca824c66d

Analysis

max time kernel
120s
max time network
118s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-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
behavioral1/files/0x000d000000012267-15.dat	family_asyncrat

Executes dropped EXE 1 IoCs

Processes:

Grettaexecutor.exe

pid	Process
2556	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
2340	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
2660	schtasks.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

07fd311ad86a3f0e100796eb0aaf9960400e800992e9a39008e6432ca824c66dN.exeGrettaexecutor.exe

pid	Process
2808	07fd311ad86a3f0e100796eb0aaf9960400e800992e9a39008e6432ca824c66dN.exe
2808	07fd311ad86a3f0e100796eb0aaf9960400e800992e9a39008e6432ca824c66dN.exe
2808	07fd311ad86a3f0e100796eb0aaf9960400e800992e9a39008e6432ca824c66dN.exe
2808	07fd311ad86a3f0e100796eb0aaf9960400e800992e9a39008e6432ca824c66dN.exe
2808	07fd311ad86a3f0e100796eb0aaf9960400e800992e9a39008e6432ca824c66dN.exe
2808	07fd311ad86a3f0e100796eb0aaf9960400e800992e9a39008e6432ca824c66dN.exe
2556	Grettaexecutor.exe
2556	Grettaexecutor.exe
2556	Grettaexecutor.exe
2556	Grettaexecutor.exe
2556	Grettaexecutor.exe
2556	Grettaexecutor.exe
2556	Grettaexecutor.exe
2556	Grettaexecutor.exe
2556	Grettaexecutor.exe
2556	Grettaexecutor.exe
2556	Grettaexecutor.exe
2556	Grettaexecutor.exe
2556	Grettaexecutor.exe
2556	Grettaexecutor.exe
2556	Grettaexecutor.exe
2556	Grettaexecutor.exe
2556	Grettaexecutor.exe
2556	Grettaexecutor.exe
2556	Grettaexecutor.exe
2556	Grettaexecutor.exe
2556	Grettaexecutor.exe
2556	Grettaexecutor.exe
2556	Grettaexecutor.exe
2556	Grettaexecutor.exe
2556	Grettaexecutor.exe
2556	Grettaexecutor.exe
2556	Grettaexecutor.exe
2556	Grettaexecutor.exe
2556	Grettaexecutor.exe
2556	Grettaexecutor.exe
2556	Grettaexecutor.exe
2556	Grettaexecutor.exe
2556	Grettaexecutor.exe
2556	Grettaexecutor.exe
2556	Grettaexecutor.exe
2556	Grettaexecutor.exe
2556	Grettaexecutor.exe
2556	Grettaexecutor.exe
2556	Grettaexecutor.exe
2556	Grettaexecutor.exe
2556	Grettaexecutor.exe
2556	Grettaexecutor.exe
2556	Grettaexecutor.exe
2556	Grettaexecutor.exe
2556	Grettaexecutor.exe
2556	Grettaexecutor.exe
2556	Grettaexecutor.exe
2556	Grettaexecutor.exe
2556	Grettaexecutor.exe
2556	Grettaexecutor.exe
2556	Grettaexecutor.exe
2556	Grettaexecutor.exe
2556	Grettaexecutor.exe
2556	Grettaexecutor.exe
2556	Grettaexecutor.exe
2556	Grettaexecutor.exe
2556	Grettaexecutor.exe
2556	Grettaexecutor.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

07fd311ad86a3f0e100796eb0aaf9960400e800992e9a39008e6432ca824c66dN.exeGrettaexecutor.exe

description	pid	Process
Token: SeDebugPrivilege	2808	07fd311ad86a3f0e100796eb0aaf9960400e800992e9a39008e6432ca824c66dN.exe
Token: SeDebugPrivilege	2556	Grettaexecutor.exe

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

07fd311ad86a3f0e100796eb0aaf9960400e800992e9a39008e6432ca824c66dN.execmd.execmd.exe

description	pid	Process	procid_target
PID 2808 wrote to memory of 2744	2808	07fd311ad86a3f0e100796eb0aaf9960400e800992e9a39008e6432ca824c66dN.exe	30
PID 2808 wrote to memory of 2744	2808	07fd311ad86a3f0e100796eb0aaf9960400e800992e9a39008e6432ca824c66dN.exe	30
PID 2808 wrote to memory of 2744	2808	07fd311ad86a3f0e100796eb0aaf9960400e800992e9a39008e6432ca824c66dN.exe	30
PID 2808 wrote to memory of 2900	2808	07fd311ad86a3f0e100796eb0aaf9960400e800992e9a39008e6432ca824c66dN.exe	32
PID 2808 wrote to memory of 2900	2808	07fd311ad86a3f0e100796eb0aaf9960400e800992e9a39008e6432ca824c66dN.exe	32
PID 2808 wrote to memory of 2900	2808	07fd311ad86a3f0e100796eb0aaf9960400e800992e9a39008e6432ca824c66dN.exe	32
PID 2744 wrote to memory of 2660	2744	cmd.exe	34
PID 2744 wrote to memory of 2660	2744	cmd.exe	34
PID 2744 wrote to memory of 2660	2744	cmd.exe	34
PID 2900 wrote to memory of 2340	2900	cmd.exe	35
PID 2900 wrote to memory of 2340	2900	cmd.exe	35
PID 2900 wrote to memory of 2340	2900	cmd.exe	35
PID 2900 wrote to memory of 2556	2900	cmd.exe	36
PID 2900 wrote to memory of 2556	2900	cmd.exe	36
PID 2900 wrote to memory of 2556	2900	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\07fd311ad86a3f0e100796eb0aaf9960400e800992e9a39008e6432ca824c66dN.exe
"C:\Users\Admin\AppData\Local\Temp\07fd311ad86a3f0e100796eb0aaf9960400e800992e9a39008e6432ca824c66dN.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2808
- 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:2744
- - 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:2660
- C:\Windows\system32\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmpF325.tmp.bat""
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2900
- - C:\Windows\system32\timeout.exe
    timeout 3
    3⤵
    - Delays execution with timeout.exe
    PID:2340
- - 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:2556

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\tmpF325.tmp.bat

Filesize
158B

MD5
70ffaf83a906e3657b653b055befa922

SHA1
80def4ec78b98456c4891c93365ded7986cb236d

SHA256
067d353944f8dfbd99d5c2692bddcb91b99770e42c3276d73c760f42f8a0d781

SHA512
ca8d25ee1f04f4933bb66e5fc244c7176329f30f652d9a47b7b81f79ce874e8ed5262794081818c5b71816cad6628bc1fb4d57181da8e923d057ffbb88e53f5f

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

Filesize
63KB

MD5
ab96f7fb7174a3056d894f91be3329a0

SHA1
588606b93b650594bf553ecb082c475fdf7ea4ae

SHA256
07fd311ad86a3f0e100796eb0aaf9960400e800992e9a39008e6432ca824c66d

SHA512
b7f8c5be8b319586c963003d068e720408178b1448ba2f6bd37b820a021faa4c1910df79a0c16673cf80633bb9e693182352daa387cd9d4f21d5361457620019

Download Submit
memory/2556-17-0x00000000011D0000-0x00000000011E6000-memory.dmp

Filesize
88KB

Download
memory/2808-0-0x000007FEF5803000-0x000007FEF5804000-memory.dmp

Filesize
4KB

Download
memory/2808-1-0x0000000000CA0000-0x0000000000CB6000-memory.dmp

Filesize
88KB

Download
memory/2808-2-0x000007FEF5800000-0x000007FEF61EC000-memory.dmp

Filesize
9.9MB

Download
memory/2808-3-0x000007FEF5800000-0x000007FEF61EC000-memory.dmp

Filesize
9.9MB

Download
memory/2808-12-0x000007FEF5800000-0x000007FEF61EC000-memory.dmp

Filesize
9.9MB

Download