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/0x000900000001ab2e-11.dat	family_asyncrat

Executes dropped EXE 1 IoCs

pid	Process
316	svchost.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
1288	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
4604	schtasks.exe

Suspicious behavior: EnumeratesProcesses 13 IoCs

pid	Process
1452	svchost23.exe
1452	svchost23.exe
1452	svchost23.exe
1452	svchost23.exe
1452	svchost23.exe
1452	svchost23.exe
1452	svchost23.exe
1452	svchost23.exe
1452	svchost23.exe
1452	svchost23.exe
1452	svchost23.exe
1452	svchost23.exe
1452	svchost23.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	1452	svchost23.exe
Token: SeDebugPrivilege	1452	svchost23.exe
Token: SeDebugPrivilege	316	svchost.exe
Token: SeDebugPrivilege	316	svchost.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 1452 wrote to memory of 4428	1452	svchost23.exe	72
PID 1452 wrote to memory of 4428	1452	svchost23.exe	72
PID 1452 wrote to memory of 4340	1452	svchost23.exe	73
PID 1452 wrote to memory of 4340	1452	svchost23.exe	73
PID 4340 wrote to memory of 1288	4340	cmd.exe	76
PID 4340 wrote to memory of 1288	4340	cmd.exe	76
PID 4428 wrote to memory of 4604	4428	cmd.exe	77
PID 4428 wrote to memory of 4604	4428	cmd.exe	77
PID 4340 wrote to memory of 316	4340	cmd.exe	78
PID 4340 wrote to memory of 316	4340	cmd.exe	78

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:1452
- 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:4428
- - 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:4604
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp61A8.tmp.bat""
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4340
- - C:\Windows\system32\timeout.exe
    timeout 3
    3⤵
    - Delays execution with timeout.exe
    PID:1288
- - C:\Users\Admin\AppData\Roaming\svchost.exe
    "C:\Users\Admin\AppData\Roaming\svchost.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of AdjustPrivilegeToken
    PID:316

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

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp61A8.tmp.bat

Filesize
151B

MD5
7a2841247b8cc6b234a4798932a3b9a5

SHA1
d72e6130701825a67212ac2cf6b36f25dbd290c0

SHA256
3d63125f218bc02331ca71d870f8804a2bfae92739b1b24bde986932774694b9

SHA512
b939a30b501143b78d3d560fc09dc186343e53e4f6febeeb67f6e9b8ebce30d81ef493593e8fc9284b073f5a73422615ee30cecf6b00cf766740613a1d34b7c6

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

Filesize
63KB

MD5
5f00c912f2ac12df8525a30afb8f776e

SHA1
516af350678a65e9e10901b8c990ef4601ae0844

SHA256
ffe2d2e6b930f0b8f752d2a478d77cfbf9467006d294474fe33970a8c529b75a

SHA512
5e9e96ed14d4c1fff020d9d1d00f137cbf1121cd5c3c58a054002d7d1f29a417b6f2f71d8f534c7207ea6bd87a3b57d7afea76390b90a1c8badf482dbba710d5

Download Submit
memory/316-15-0x0000012637270000-0x00000126372E6000-memory.dmp

Filesize
472KB

Download
memory/316-16-0x00000126352E0000-0x00000126352F0000-memory.dmp

Filesize
64KB

Download
memory/316-17-0x0000012635600000-0x000001263561E000-memory.dmp

Filesize
120KB

Download
memory/316-18-0x0000012635620000-0x0000012635646000-memory.dmp

Filesize
152KB

Download
memory/1452-0-0x00000206D3DE0000-0x00000206D3DF6000-memory.dmp

Filesize
88KB

Download
memory/1452-1-0x00007FFD9C953000-0x00007FFD9C954000-memory.dmp

Filesize
4KB

Download
memory/1452-2-0x00007FFD9C950000-0x00007FFD9D33C000-memory.dmp

Filesize
9.9MB

Download
memory/1452-3-0x00007FFD9C950000-0x00007FFD9D33C000-memory.dmp

Filesize
9.9MB

Download
memory/1452-8-0x00007FFD9C950000-0x00007FFD9D33C000-memory.dmp

Filesize
9.9MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads