asyncrat | ffe2d2e6b930f0b8f752d2a478d77cfbf9467006d294474fe33970a8c529b75a

General

Target

svchost23.exe
Size

63KB
MD5

5f00c912f2ac12df8525a30afb8f776e
SHA1

516af350678a65e9e10901b8c990ef4601ae0844
SHA256

ffe2d2e6b930f0b8f752d2a478d77cfbf9467006d294474fe33970a8c529b75a
SHA512

5e9e96ed14d4c1fff020d9d1d00f137cbf1121cd5c3c58a054002d7d1f29a417b6f2f71d8f534c7207ea6bd87a3b57d7afea76390b90a1c8badf482dbba710d5
SSDEEP

1536:FhMpLbRQkB4+ENds+jFBncsSRoAGbbzwHvGHtpqKmY7:FhMpLbRQkB4tds+jFBl2JGbbzt2z

Score

10^/10

asyncrat default rat

Malware Config

Extracted

Family

asyncrat

Version

1.2

Botnet

Default

C2

stores-less.gl.at.ply.gg:45080

Mutex

AtomRatMutex_penka

Attributes

delay
1
install
true
install_file
svchost.exe
install_folder
%AppData%

aes.plain

Signatures

AsyncRat
AsyncRAT is designed to remotely monitor and control other computers written in C#.
rat asyncrat

Async RAT payload 1 IoCs

rat

resource	yara_rule
behavioral1/files/0x00090000000120f1-15.dat	family_asyncrat

Executes dropped EXE 1 IoCs

pid	Process
2964	svchost.exe

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
2984	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
1788	schtasks.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2912	svchost23.exe
2912	svchost23.exe
2912	svchost23.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	2912	svchost23.exe
Token: SeDebugPrivilege	2912	svchost23.exe
Token: SeDebugPrivilege	2964	svchost.exe
Token: SeDebugPrivilege	2964	svchost.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 2912 wrote to memory of 2824	2912	svchost23.exe	30
PID 2912 wrote to memory of 2824	2912	svchost23.exe	30
PID 2912 wrote to memory of 2824	2912	svchost23.exe	30
PID 2912 wrote to memory of 3000	2912	svchost23.exe	31
PID 2912 wrote to memory of 3000	2912	svchost23.exe	31
PID 2912 wrote to memory of 3000	2912	svchost23.exe	31
PID 2824 wrote to memory of 1788	2824	cmd.exe	34
PID 2824 wrote to memory of 1788	2824	cmd.exe	34
PID 2824 wrote to memory of 1788	2824	cmd.exe	34
PID 3000 wrote to memory of 2984	3000	cmd.exe	35
PID 3000 wrote to memory of 2984	3000	cmd.exe	35
PID 3000 wrote to memory of 2984	3000	cmd.exe	35
PID 3000 wrote to memory of 2964	3000	cmd.exe	36
PID 3000 wrote to memory of 2964	3000	cmd.exe	36
PID 3000 wrote to memory of 2964	3000	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\svchost23.exe
"C:\Users\Admin\AppData\Local\Temp\svchost23.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2912
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "svchost" /tr '"C:\Users\Admin\AppData\Roaming\svchost.exe"' & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2824
- - C:\Windows\system32\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "svchost" /tr '"C:\Users\Admin\AppData\Roaming\svchost.exe"'
    3⤵
    - Scheduled Task/Job: Scheduled Task
    PID:1788
- C:\Windows\system32\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmp8D13.tmp.bat""
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3000
- - C:\Windows\system32\timeout.exe
    timeout 3
    3⤵
    - Delays execution with timeout.exe
    PID:2984
- - C:\Users\Admin\AppData\Roaming\svchost.exe
    "C:\Users\Admin\AppData\Roaming\svchost.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of AdjustPrivilegeToken
    PID:2964

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\tmp8D13.tmp.bat

Filesize
151B

MD5
d0b0175845a8ea9b777f1b90c876991e

SHA1
5fb8823fe69ec18cc597b5e26852cb9f186db7d4

SHA256
41cb07509c25a359cc10989902e987a15bc09b052b0a369fa4a4a03a2fe91e2b

SHA512
628bea3a480488571ff4f65bc049a1f6a1c33f8e976a3a2c0cc513b2434f38dc125d7757c5f4b5ac5cb4964c2c8a6aa667846ea748062003004e75a021942080

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

Filesize
63KB

MD5
5f00c912f2ac12df8525a30afb8f776e

SHA1
516af350678a65e9e10901b8c990ef4601ae0844

SHA256
ffe2d2e6b930f0b8f752d2a478d77cfbf9467006d294474fe33970a8c529b75a

SHA512
5e9e96ed14d4c1fff020d9d1d00f137cbf1121cd5c3c58a054002d7d1f29a417b6f2f71d8f534c7207ea6bd87a3b57d7afea76390b90a1c8badf482dbba710d5

Download Submit
memory/2912-0-0x000007FEF5103000-0x000007FEF5104000-memory.dmp

Filesize
4KB

Download
memory/2912-1-0x0000000000C80000-0x0000000000C96000-memory.dmp

Filesize
88KB

Download
memory/2912-2-0x000007FEF5100000-0x000007FEF5AEC000-memory.dmp

Filesize
9.9MB

Download
memory/2912-12-0x000007FEF5100000-0x000007FEF5AEC000-memory.dmp

Filesize
9.9MB

Download
memory/2912-10-0x000007FEF5100000-0x000007FEF5AEC000-memory.dmp

Filesize
9.9MB

Download
memory/2964-17-0x0000000000E60000-0x0000000000E76000-memory.dmp

Filesize
88KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads