asyncrat | 4476d0eb2a47cb9bfe3155abf0a1603de727dd127f4df099b344df56c22c0d67

General

Target

4476d0eb2a47cb9bfe3155abf0a1603de727dd127f4df099b344df56c22c0d67.exe
Size

63KB
MD5

1b8eea1226cd913da97c0c0b8a806b18
SHA1

4320bde806e4fb5792be6bfb2e0b45ae30033fa0
SHA256

4476d0eb2a47cb9bfe3155abf0a1603de727dd127f4df099b344df56c22c0d67
SHA512

70fca344d74efe3e1bf9268e36bd2aac698e69cde340559f5a0df603bf996d06f6b60920cf02ecf19c8532f6a6d6210a4c9ad54a61ddbf12541ae0cfee3da7f1
SSDEEP

1536:zZgPH9F4s1THE6HTIiTEulumGbb+wAe+EhGG0kpqKmY7:zZgPH9F4sBHLTIiTnGbb+xmuvz

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
piskat.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/0x0008000000016d43-16.dat	family_asyncrat

Executes dropped EXE 1 IoCs

pid	Process
2812	piskat.exe

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
2740	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
2188	schtasks.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
1288	4476d0eb2a47cb9bfe3155abf0a1603de727dd127f4df099b344df56c22c0d67.exe
1288	4476d0eb2a47cb9bfe3155abf0a1603de727dd127f4df099b344df56c22c0d67.exe
1288	4476d0eb2a47cb9bfe3155abf0a1603de727dd127f4df099b344df56c22c0d67.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1288	4476d0eb2a47cb9bfe3155abf0a1603de727dd127f4df099b344df56c22c0d67.exe
Token: SeDebugPrivilege	2812	piskat.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 1288 wrote to memory of 1992	1288	4476d0eb2a47cb9bfe3155abf0a1603de727dd127f4df099b344df56c22c0d67.exe	31
PID 1288 wrote to memory of 1992	1288	4476d0eb2a47cb9bfe3155abf0a1603de727dd127f4df099b344df56c22c0d67.exe	31
PID 1288 wrote to memory of 1992	1288	4476d0eb2a47cb9bfe3155abf0a1603de727dd127f4df099b344df56c22c0d67.exe	31
PID 1288 wrote to memory of 776	1288	4476d0eb2a47cb9bfe3155abf0a1603de727dd127f4df099b344df56c22c0d67.exe	33
PID 1288 wrote to memory of 776	1288	4476d0eb2a47cb9bfe3155abf0a1603de727dd127f4df099b344df56c22c0d67.exe	33
PID 1288 wrote to memory of 776	1288	4476d0eb2a47cb9bfe3155abf0a1603de727dd127f4df099b344df56c22c0d67.exe	33
PID 1992 wrote to memory of 2188	1992	cmd.exe	35
PID 1992 wrote to memory of 2188	1992	cmd.exe	35
PID 1992 wrote to memory of 2188	1992	cmd.exe	35
PID 776 wrote to memory of 2740	776	cmd.exe	36
PID 776 wrote to memory of 2740	776	cmd.exe	36
PID 776 wrote to memory of 2740	776	cmd.exe	36
PID 776 wrote to memory of 2812	776	cmd.exe	37
PID 776 wrote to memory of 2812	776	cmd.exe	37
PID 776 wrote to memory of 2812	776	cmd.exe	37

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\4476d0eb2a47cb9bfe3155abf0a1603de727dd127f4df099b344df56c22c0d67.exe
"C:\Users\Admin\AppData\Local\Temp\4476d0eb2a47cb9bfe3155abf0a1603de727dd127f4df099b344df56c22c0d67.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1288
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "piskat" /tr '"C:\Users\Admin\AppData\Roaming\piskat.exe"' & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1992
- - C:\Windows\system32\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "piskat" /tr '"C:\Users\Admin\AppData\Roaming\piskat.exe"'
    3⤵
    - Scheduled Task/Job: Scheduled Task
    PID:2188
- C:\Windows\system32\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmpD440.tmp.bat""
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:776
- - C:\Windows\system32\timeout.exe
    timeout 3
    3⤵
    - Delays execution with timeout.exe
    PID:2740
- - C:\Users\Admin\AppData\Roaming\piskat.exe
    "C:\Users\Admin\AppData\Roaming\piskat.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of AdjustPrivilegeToken
    PID:2812

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

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmpD440.tmp.bat

Filesize
150B

MD5
e715befa3f4d70ea95af673fa377b624

SHA1
13b4105adfb9d741b1aaeaffff1efe25d26a0380

SHA256
46e04698e04c9f7e9c8da1c32ad9d0ef8e8e2a9fadc9fe9b6ffdf4aa10bc9629

SHA512
eb4aa732d08346fca051f553e48df08072e1286c7d00fd3a59ec88617c7e566382e2a5f71f12feab2b87b9703b3c84dfe9700927e2f3880e7d5f9cc8d6f15d09

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

Filesize
63KB

MD5
1b8eea1226cd913da97c0c0b8a806b18

SHA1
4320bde806e4fb5792be6bfb2e0b45ae30033fa0

SHA256
4476d0eb2a47cb9bfe3155abf0a1603de727dd127f4df099b344df56c22c0d67

SHA512
70fca344d74efe3e1bf9268e36bd2aac698e69cde340559f5a0df603bf996d06f6b60920cf02ecf19c8532f6a6d6210a4c9ad54a61ddbf12541ae0cfee3da7f1

Download Submit
memory/1288-0-0x000007FEF56B3000-0x000007FEF56B4000-memory.dmp

Filesize
4KB

Download
memory/1288-1-0x0000000000FC0000-0x0000000000FD6000-memory.dmp

Filesize
88KB

Download
memory/1288-2-0x000007FEF56B0000-0x000007FEF609C000-memory.dmp

Filesize
9.9MB

Download
memory/1288-11-0x000007FEF56B0000-0x000007FEF609C000-memory.dmp

Filesize
9.9MB

Download
memory/1288-12-0x000007FEF56B0000-0x000007FEF609C000-memory.dmp

Filesize
9.9MB

Download
memory/2812-17-0x00000000002B0000-0x00000000002C6000-memory.dmp

Filesize
88KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads