asyncrat | 9eb30672961f46f8d28675af6a07dfdd3e07c2ce955ec0f135ead8475195b61e

General

Target

9EB30672961F46F8D28675AF6A07DFDD3E07C2CE955EC.exe
Size

1.3MB
MD5

1a9f14de010f2c090d00b96aedf324d0
SHA1

9adba3d0a2364f3c620c0f81a34963ed7c6834fe
SHA256

9eb30672961f46f8d28675af6a07dfdd3e07c2ce955ec0f135ead8475195b61e
SHA512

f57220a84f920c546b9cbb71a0055dd295ea3fb03994cccc30927c8640c55797ded4e5008e16699a6eb2521d6be4bc36117e3a2bab59436f9c597a3e457624e0
SSDEEP

6144:PZMFMoMkKpwEZofkObAUQyo9tkLnncEU8tETO8u4qNlQf9HjmaDvTK0lMONbOVrS:vhT3FRTKBO6upHPijWdT

Score

10^/10

asyncrat default rat

Malware Config

Extracted

Family

asyncrat

Version

0.5.6D

Botnet

Default

C2

seznam.zapto.org:6606

seznam.zapto.org:7707

seznam.zapto.org:8808

millaa.publicvm.com:6606

millaa.publicvm.com:7707

millaa.publicvm.com:8808

Mutex

egleynudkbe

Attributes

delay
6
install
true
install_file
microsefto.exe
install_folder
%AppData%

aes.plain

Signatures

AsyncRat
AsyncRAT is designed to remotely monitor and control other computers.
rat asyncrat

Async RAT payload 1 IoCs

rat

Processes:

resource	yara_rule
behavioral1/memory/772-55-0x0000000000280000-0x0000000000292000-memory.dmp	asyncrat

Executes dropped EXE 1 IoCs

Processes:

microsefto.exe

pid process

556 microsefto.exe
Loads dropped DLL 1 IoCs

Processes:

cmd.exe

pid process

1264 cmd.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task
T1053

Processes:

schtasks.exe

pid process

1280 schtasks.exe
Delays execution with timeout.exe 1 IoCs
evasion

Processes:

timeout.exe

pid process

1512 timeout.exe
Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

9EB30672961F46F8D28675AF6A07DFDD3E07C2CE955EC.exe

pid process

772 9EB30672961F46F8D28675AF6A07DFDD3E07C2CE955EC.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

9EB30672961F46F8D28675AF6A07DFDD3E07C2CE955EC.exemicrosefto.exe

description pid process

Token: SeDebugPrivilege 772 9EB30672961F46F8D28675AF6A07DFDD3E07C2CE955EC.exe
Token: SeDebugPrivilege 556 microsefto.exe

pid	process
556	microsefto.exe

pid	process
1264	cmd.exe

pid	process
1280	schtasks.exe

pid	process
1512	timeout.exe

pid	process
772	9EB30672961F46F8D28675AF6A07DFDD3E07C2CE955EC.exe

description	pid	process
Token: SeDebugPrivilege	772	9EB30672961F46F8D28675AF6A07DFDD3E07C2CE955EC.exe
Token: SeDebugPrivilege	556	microsefto.exe

Suspicious use of WriteProcessMemory 20 IoCs

Processes:

9EB30672961F46F8D28675AF6A07DFDD3E07C2CE955EC.execmd.execmd.exe

description	pid	process	target process
PID 772 wrote to memory of 1076	772	9EB30672961F46F8D28675AF6A07DFDD3E07C2CE955EC.exe	cmd.exe
PID 772 wrote to memory of 1076	772	9EB30672961F46F8D28675AF6A07DFDD3E07C2CE955EC.exe	cmd.exe
PID 772 wrote to memory of 1076	772	9EB30672961F46F8D28675AF6A07DFDD3E07C2CE955EC.exe	cmd.exe
PID 772 wrote to memory of 1076	772	9EB30672961F46F8D28675AF6A07DFDD3E07C2CE955EC.exe	cmd.exe
PID 772 wrote to memory of 1264	772	9EB30672961F46F8D28675AF6A07DFDD3E07C2CE955EC.exe	cmd.exe
PID 772 wrote to memory of 1264	772	9EB30672961F46F8D28675AF6A07DFDD3E07C2CE955EC.exe	cmd.exe
PID 772 wrote to memory of 1264	772	9EB30672961F46F8D28675AF6A07DFDD3E07C2CE955EC.exe	cmd.exe
PID 772 wrote to memory of 1264	772	9EB30672961F46F8D28675AF6A07DFDD3E07C2CE955EC.exe	cmd.exe
PID 1076 wrote to memory of 1280	1076	cmd.exe	schtasks.exe
PID 1076 wrote to memory of 1280	1076	cmd.exe	schtasks.exe
PID 1076 wrote to memory of 1280	1076	cmd.exe	schtasks.exe
PID 1076 wrote to memory of 1280	1076	cmd.exe	schtasks.exe
PID 1264 wrote to memory of 1512	1264	cmd.exe	timeout.exe
PID 1264 wrote to memory of 1512	1264	cmd.exe	timeout.exe
PID 1264 wrote to memory of 1512	1264	cmd.exe	timeout.exe
PID 1264 wrote to memory of 1512	1264	cmd.exe	timeout.exe
PID 1264 wrote to memory of 556	1264	cmd.exe	microsefto.exe
PID 1264 wrote to memory of 556	1264	cmd.exe	microsefto.exe
PID 1264 wrote to memory of 556	1264	cmd.exe	microsefto.exe
PID 1264 wrote to memory of 556	1264	cmd.exe	microsefto.exe

C:\Users\Admin\AppData\Local\Temp\9EB30672961F46F8D28675AF6A07DFDD3E07C2CE955EC.exe
"C:\Users\Admin\AppData\Local\Temp\9EB30672961F46F8D28675AF6A07DFDD3E07C2CE955EC.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:772
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /ru system /rl highest /tn 9EB30672961F46F8D28675AF6A07DFDD3E07C2CE955EC /tr '"C:\Users\Admin\AppData\Roaming\microsefto.exe"' & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1076
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /f /sc onlogon /ru system /rl highest /tn 9EB30672961F46F8D28675AF6A07DFDD3E07C2CE955EC /tr '"C:\Users\Admin\AppData\Roaming\microsefto.exe"'
    3⤵
    - Creates scheduled task(s)
    PID:1280
- C:\Windows\SysWOW64\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmpE2C2.tmp.bat""
  2⤵
  - Loads dropped DLL
  - Suspicious use of WriteProcessMemory
  PID:1264
- - C:\Windows\SysWOW64\timeout.exe
    timeout 3
    3⤵
    - Delays execution with timeout.exe
    PID:1512
- - C:\Users\Admin\AppData\Roaming\microsefto.exe
    "C:\Users\Admin\AppData\Roaming\microsefto.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of AdjustPrivilegeToken
    PID:556

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmpE2C2.tmp.bat

Filesize
154B

MD5
b6f6a022681e322de5eb68d2d7d50551

SHA1
10b942b3fa941f11199e2a8b729d38288fff2a54

SHA256
a15f58b91ab50cadf65ab0d564a4f62028baaed22b4edecf916597520f382c92

SHA512
8bbe0a58a0a62f59c0cbb541fdc73527638a8ca54c971dfdb155cc3818273ac62d8c90d39e2d10417b2683f66f7d03ad40ca085164a20269eb1ce0e224a68798

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

Filesize
1.3MB

MD5
1a9f14de010f2c090d00b96aedf324d0

SHA1
9adba3d0a2364f3c620c0f81a34963ed7c6834fe

SHA256
9eb30672961f46f8d28675af6a07dfdd3e07c2ce955ec0f135ead8475195b61e

SHA512
f57220a84f920c546b9cbb71a0055dd295ea3fb03994cccc30927c8640c55797ded4e5008e16699a6eb2521d6be4bc36117e3a2bab59436f9c597a3e457624e0

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

Filesize
1.3MB

MD5
1a9f14de010f2c090d00b96aedf324d0

SHA1
9adba3d0a2364f3c620c0f81a34963ed7c6834fe

SHA256
9eb30672961f46f8d28675af6a07dfdd3e07c2ce955ec0f135ead8475195b61e

SHA512
f57220a84f920c546b9cbb71a0055dd295ea3fb03994cccc30927c8640c55797ded4e5008e16699a6eb2521d6be4bc36117e3a2bab59436f9c597a3e457624e0

Download Submit
\Users\Admin\AppData\Roaming\microsefto.exe

Filesize
1.3MB

MD5
1a9f14de010f2c090d00b96aedf324d0

SHA1
9adba3d0a2364f3c620c0f81a34963ed7c6834fe

SHA256
9eb30672961f46f8d28675af6a07dfdd3e07c2ce955ec0f135ead8475195b61e

SHA512
f57220a84f920c546b9cbb71a0055dd295ea3fb03994cccc30927c8640c55797ded4e5008e16699a6eb2521d6be4bc36117e3a2bab59436f9c597a3e457624e0

Download Submit
memory/556-63-0x0000000000000000-mapping.dmp

Download
memory/556-65-0x0000000000860000-0x00000000009B8000-memory.dmp

Filesize
1.3MB

Download
memory/772-54-0x00000000010B0000-0x0000000001208000-memory.dmp

Filesize
1.3MB

Download
memory/772-55-0x0000000000280000-0x0000000000292000-memory.dmp

Filesize
72KB

Download
memory/1076-56-0x0000000000000000-mapping.dmp

Download
memory/1264-57-0x0000000000000000-mapping.dmp

Download
memory/1280-59-0x0000000000000000-mapping.dmp

Download
memory/1512-60-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads