asyncrat | a150a433c6a3e4278f6cc4cbc85863fc431e5c1e65081ad67253513e8ca01282

General

Target

a150a433c6a3e4278f6cc4cbc85863fc431e5c1e65081ad67253513e8ca01282.exe
Size

63KB
MD5

b8d455465260a845db35492fda5a8888
SHA1

287b0ba049ad8f3be802d2224efb86dba72d3221
SHA256

a150a433c6a3e4278f6cc4cbc85863fc431e5c1e65081ad67253513e8ca01282
SHA512

5dba43ae31420de362593752e8ff491afbe8d20f183f6b95e6962ea1e637c7bf3bd50b5213e4d928a96b85d9b54841ee697798b0089624b13ef7eded826cd86a
SSDEEP

768:CuY6LVcsTPq781wC8A+XjuazcBRL5JTk1+T4KSBGHmDbD/ph0oX9rAW6dEYSuEdP:reQPckdSJYUbdh9O8uEdpqKmY7

Score

10^/10

asyncrat default rat

Malware Config

Extracted

Family

asyncrat

Botnet

Default

C2

66.235.168.242:3232

Attributes

delay
1
install
true
install_file
Loaader.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/0x000b000000014319-15.dat	family_asyncrat

Executes dropped EXE 1 IoCs

pid	Process
2664	Loaader.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

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/Job

T1053

pid	Process
2640	schtasks.exe

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
2656	timeout.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
1676	a150a433c6a3e4278f6cc4cbc85863fc431e5c1e65081ad67253513e8ca01282.exe
1676	a150a433c6a3e4278f6cc4cbc85863fc431e5c1e65081ad67253513e8ca01282.exe
1676	a150a433c6a3e4278f6cc4cbc85863fc431e5c1e65081ad67253513e8ca01282.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1676	a150a433c6a3e4278f6cc4cbc85863fc431e5c1e65081ad67253513e8ca01282.exe
Token: SeDebugPrivilege	2664	Loaader.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 1676 wrote to memory of 2124	1676	a150a433c6a3e4278f6cc4cbc85863fc431e5c1e65081ad67253513e8ca01282.exe	28
PID 1676 wrote to memory of 2124	1676	a150a433c6a3e4278f6cc4cbc85863fc431e5c1e65081ad67253513e8ca01282.exe	28
PID 1676 wrote to memory of 2124	1676	a150a433c6a3e4278f6cc4cbc85863fc431e5c1e65081ad67253513e8ca01282.exe	28
PID 1676 wrote to memory of 2572	1676	a150a433c6a3e4278f6cc4cbc85863fc431e5c1e65081ad67253513e8ca01282.exe	30
PID 1676 wrote to memory of 2572	1676	a150a433c6a3e4278f6cc4cbc85863fc431e5c1e65081ad67253513e8ca01282.exe	30
PID 1676 wrote to memory of 2572	1676	a150a433c6a3e4278f6cc4cbc85863fc431e5c1e65081ad67253513e8ca01282.exe	30
PID 2124 wrote to memory of 2640	2124	cmd.exe	32
PID 2124 wrote to memory of 2640	2124	cmd.exe	32
PID 2124 wrote to memory of 2640	2124	cmd.exe	32
PID 2572 wrote to memory of 2656	2572	cmd.exe	33
PID 2572 wrote to memory of 2656	2572	cmd.exe	33
PID 2572 wrote to memory of 2656	2572	cmd.exe	33
PID 2572 wrote to memory of 2664	2572	cmd.exe	34
PID 2572 wrote to memory of 2664	2572	cmd.exe	34
PID 2572 wrote to memory of 2664	2572	cmd.exe	34

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\a150a433c6a3e4278f6cc4cbc85863fc431e5c1e65081ad67253513e8ca01282.exe
"C:\Users\Admin\AppData\Local\Temp\a150a433c6a3e4278f6cc4cbc85863fc431e5c1e65081ad67253513e8ca01282.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1676
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "Loaader" /tr '"C:\Users\Admin\AppData\Roaming\Loaader.exe"' & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2124
- - C:\Windows\system32\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "Loaader" /tr '"C:\Users\Admin\AppData\Roaming\Loaader.exe"'
    3⤵
    - Creates scheduled task(s)
    PID:2640
- C:\Windows\system32\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmp2A3C.tmp.bat""
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2572
- - C:\Windows\system32\timeout.exe
    timeout 3
    3⤵
    - Delays execution with timeout.exe
    PID:2656
- - C:\Users\Admin\AppData\Roaming\Loaader.exe
    "C:\Users\Admin\AppData\Roaming\Loaader.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of AdjustPrivilegeToken
    PID:2664

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1

T1053

Persistence

Scheduled Task/Job

1

T1053

Privilege Escalation

Scheduled Task/Job

1

T1053

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\tmp2A3C.tmp.bat

Filesize
151B

MD5
c3a8530939f302be86a6930407186e05

SHA1
87e31a42e13b56310900e3ea559403da68e3089e

SHA256
79a218c35dd50e881f1217fe046e9c98d22c52c77bebc6f397a83890511f3f8a

SHA512
066d532e376e218e0c136f493c2e6b602c56c4c3c65343444b034b08c342b35c84ca7ca8ae9d4ba0dd658d4d0574f17ce32d3660aeae1ec6b03e6d59380b64ad

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

Filesize
63KB

MD5
b8d455465260a845db35492fda5a8888

SHA1
287b0ba049ad8f3be802d2224efb86dba72d3221

SHA256
a150a433c6a3e4278f6cc4cbc85863fc431e5c1e65081ad67253513e8ca01282

SHA512
5dba43ae31420de362593752e8ff491afbe8d20f183f6b95e6962ea1e637c7bf3bd50b5213e4d928a96b85d9b54841ee697798b0089624b13ef7eded826cd86a

Download Submit
memory/1676-0-0x000007FEF5953000-0x000007FEF5954000-memory.dmp

Filesize
4KB

Download
memory/1676-1-0x00000000009D0000-0x00000000009E6000-memory.dmp

Filesize
88KB

Download
memory/1676-2-0x000007FEF5950000-0x000007FEF633C000-memory.dmp

Filesize
9.9MB

Download
memory/1676-3-0x000007FEF5950000-0x000007FEF633C000-memory.dmp

Filesize
9.9MB

Download
memory/1676-12-0x000007FEF5950000-0x000007FEF633C000-memory.dmp

Filesize
9.9MB

Download
memory/2664-17-0x0000000000120000-0x0000000000136000-memory.dmp

Filesize
88KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads