asyncrat | e296fd745e2a6dfb3f345a73e59174d5236c9c55855c8ee0c5602955614d9794

Analysis

max time kernel
144s
max time network
166s
platform
windows10-2004_x64
resource
win10v2004-20230915-en
resource tags

arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-x64system
submitted
13/10/2023, 22:14

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General

Target

Notification of transfer made - Santander142023.exe
Size

168KB
MD5

460c5e2904724e5babe7c3f7eaaf8de9
SHA1

a648b18830c27850fe651e6601792a7676c18c94
SHA256

e296fd745e2a6dfb3f345a73e59174d5236c9c55855c8ee0c5602955614d9794
SHA512

31cf6090a1764abc61aced61fc78e0f9471a636f0e95f997ed083798908c075fb7d5fd78e45d17f5e0ba53d37fe1c7ea8342acb71b0ac41b94e7e1fc6b2b8f16
SSDEEP

3072:2L31ZGgcsKuvP6Thmcy6bzVprBAs6UKoq0yiw7bWbJ:83ugdvP6K6b/rBAsq/iwQ

Score

10^/10

asyncrat default rat

Malware Config

Extracted

Family

asyncrat

Version

1.0.7

Botnet

Default

donelpacino.ddns.net:5500

Mutex

DcRatMutex_qwqdanchun

Attributes

delay
1
install
false
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
behavioral2/memory/2080-8-0x00000000007A0000-0x00000000007B2000-memory.dmp	asyncrat

Executes dropped EXE 2 IoCs

pid	Process
4900	notepad.exe
4552	notepad.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 3572 set thread context of 2080	3572	Notification of transfer made - Santander142023.exe	89
PID 4900 set thread context of 4552	4900	notepad.exe	105

Creates scheduled task(s) 1 TTPs 2 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence

Scheduled Task/Job

T1053

pid	Process
4796	schtasks.exe
4868	schtasks.exe

Suspicious use of WriteProcessMemory 40 IoCs

description	pid	Process	procid_target
PID 3572 wrote to memory of 2080	3572	Notification of transfer made - Santander142023.exe	89
PID 3572 wrote to memory of 2080	3572	Notification of transfer made - Santander142023.exe	89
PID 3572 wrote to memory of 2080	3572	Notification of transfer made - Santander142023.exe	89
PID 3572 wrote to memory of 2080	3572	Notification of transfer made - Santander142023.exe	89
PID 3572 wrote to memory of 2080	3572	Notification of transfer made - Santander142023.exe	89
PID 3572 wrote to memory of 2080	3572	Notification of transfer made - Santander142023.exe	89
PID 3572 wrote to memory of 2080	3572	Notification of transfer made - Santander142023.exe	89
PID 3572 wrote to memory of 2080	3572	Notification of transfer made - Santander142023.exe	89
PID 3572 wrote to memory of 2596	3572	Notification of transfer made - Santander142023.exe	90
PID 3572 wrote to memory of 2596	3572	Notification of transfer made - Santander142023.exe	90
PID 3572 wrote to memory of 2596	3572	Notification of transfer made - Santander142023.exe	90
PID 3572 wrote to memory of 2356	3572	Notification of transfer made - Santander142023.exe	92
PID 3572 wrote to memory of 2356	3572	Notification of transfer made - Santander142023.exe	92
PID 3572 wrote to memory of 2356	3572	Notification of transfer made - Santander142023.exe	92
PID 3572 wrote to memory of 1240	3572	Notification of transfer made - Santander142023.exe	93
PID 3572 wrote to memory of 1240	3572	Notification of transfer made - Santander142023.exe	93
PID 3572 wrote to memory of 1240	3572	Notification of transfer made - Santander142023.exe	93
PID 2356 wrote to memory of 4868	2356	cmd.exe	96
PID 2356 wrote to memory of 4868	2356	cmd.exe	96
PID 2356 wrote to memory of 4868	2356	cmd.exe	96
PID 4900 wrote to memory of 4552	4900	notepad.exe	105
PID 4900 wrote to memory of 4552	4900	notepad.exe	105
PID 4900 wrote to memory of 4552	4900	notepad.exe	105
PID 4900 wrote to memory of 4552	4900	notepad.exe	105
PID 4900 wrote to memory of 4552	4900	notepad.exe	105
PID 4900 wrote to memory of 4552	4900	notepad.exe	105
PID 4900 wrote to memory of 4552	4900	notepad.exe	105
PID 4900 wrote to memory of 4552	4900	notepad.exe	105
PID 4900 wrote to memory of 456	4900	notepad.exe	106
PID 4900 wrote to memory of 456	4900	notepad.exe	106
PID 4900 wrote to memory of 456	4900	notepad.exe	106
PID 4900 wrote to memory of 3184	4900	notepad.exe	107
PID 4900 wrote to memory of 3184	4900	notepad.exe	107
PID 4900 wrote to memory of 3184	4900	notepad.exe	107
PID 4900 wrote to memory of 1576	4900	notepad.exe	110
PID 4900 wrote to memory of 1576	4900	notepad.exe	110
PID 4900 wrote to memory of 1576	4900	notepad.exe	110
PID 3184 wrote to memory of 4796	3184	cmd.exe	112
PID 3184 wrote to memory of 4796	3184	cmd.exe	112
PID 3184 wrote to memory of 4796	3184	cmd.exe	112

C:\Users\Admin\AppData\Local\Temp\Notification of transfer made - Santander142023.exe
"C:\Users\Admin\AppData\Local\Temp\Notification of transfer made - Santander142023.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3572
- C:\Users\Admin\AppData\Local\Temp\Notification of transfer made - Santander142023.exe
  "C:\Users\Admin\AppData\Local\Temp\Notification of transfer made - Santander142023.exe"
  2⤵
  PID:2080
- C:\Windows\SysWOW64\cmd.exe
  "cmd" /c mkdir "C:\Users\Admin\AppData\Roaming\notepad"
  2⤵
  PID:2596
- C:\Windows\SysWOW64\cmd.exe
  "cmd" /c schtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Roaming\notepad\notepad.exe'" /f
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2356
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Roaming\notepad\notepad.exe'" /f
    3⤵
    - Creates scheduled task(s)
    PID:4868
- C:\Windows\SysWOW64\cmd.exe
  "cmd" /c copy "C:\Users\Admin\AppData\Local\Temp\Notification of transfer made - Santander142023.exe" "C:\Users\Admin\AppData\Roaming\notepad\notepad.exe"
  2⤵
  PID:1240

C:\Users\Admin\AppData\Roaming\notepad\notepad.exe
C:\Users\Admin\AppData\Roaming\notepad\notepad.exe
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4900
- C:\Users\Admin\AppData\Roaming\notepad\notepad.exe
  "C:\Users\Admin\AppData\Roaming\notepad\notepad.exe"
  2⤵
  - Executes dropped EXE
  PID:4552
- C:\Windows\SysWOW64\cmd.exe
  "cmd" /c mkdir "C:\Users\Admin\AppData\Roaming\notepad"
  2⤵
  PID:456
- C:\Windows\SysWOW64\cmd.exe
  "cmd" /c schtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Roaming\notepad\notepad.exe'" /f
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3184
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Roaming\notepad\notepad.exe'" /f
    3⤵
    - Creates scheduled task(s)
    PID:4796
- C:\Windows\SysWOW64\cmd.exe
  "cmd" /c copy "C:\Users\Admin\AppData\Roaming\notepad\notepad.exe" "C:\Users\Admin\AppData\Roaming\notepad\notepad.exe"
  2⤵
  PID:1576

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Persistence

Scheduled Task/Job

T1053

Privilege Escalation

Scheduled Task/Job

T1053

Defense Evasion

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\notepad.exe.log

Filesize
520B

MD5
03febbff58da1d3318c31657d89c8542

SHA1
c9e017bd9d0a4fe533795b227c855935d86c2092

SHA256
5164770a37b199a79ccd23b399bb3309228973d9f74c589bc2623dc613b37ac4

SHA512
3750c372bbca1892e9c1b34681d592c693e725a8b149c3d6938079cd467628cec42c4293b0d886b57a786abf45f5e7229247b3445001774e3e793ff5a3accfa3

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

Filesize
168KB

MD5
460c5e2904724e5babe7c3f7eaaf8de9

SHA1
a648b18830c27850fe651e6601792a7676c18c94

SHA256
e296fd745e2a6dfb3f345a73e59174d5236c9c55855c8ee0c5602955614d9794

SHA512
31cf6090a1764abc61aced61fc78e0f9471a636f0e95f997ed083798908c075fb7d5fd78e45d17f5e0ba53d37fe1c7ea8342acb71b0ac41b94e7e1fc6b2b8f16

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

Filesize
168KB

MD5
460c5e2904724e5babe7c3f7eaaf8de9

SHA1
a648b18830c27850fe651e6601792a7676c18c94

SHA256
e296fd745e2a6dfb3f345a73e59174d5236c9c55855c8ee0c5602955614d9794

SHA512
31cf6090a1764abc61aced61fc78e0f9471a636f0e95f997ed083798908c075fb7d5fd78e45d17f5e0ba53d37fe1c7ea8342acb71b0ac41b94e7e1fc6b2b8f16

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

Filesize
168KB

MD5
460c5e2904724e5babe7c3f7eaaf8de9

SHA1
a648b18830c27850fe651e6601792a7676c18c94

SHA256
e296fd745e2a6dfb3f345a73e59174d5236c9c55855c8ee0c5602955614d9794

SHA512
31cf6090a1764abc61aced61fc78e0f9471a636f0e95f997ed083798908c075fb7d5fd78e45d17f5e0ba53d37fe1c7ea8342acb71b0ac41b94e7e1fc6b2b8f16

Download Submit
memory/2080-10-0x0000000074FD0000-0x0000000075780000-memory.dmp

Filesize
7.7MB

Download
memory/2080-16-0x0000000004E10000-0x0000000004E20000-memory.dmp

Filesize
64KB

Download
memory/2080-11-0x0000000004E10000-0x0000000004E20000-memory.dmp

Filesize
64KB

Download
memory/2080-8-0x00000000007A0000-0x00000000007B2000-memory.dmp

Filesize
72KB

Download
memory/2080-9-0x0000000074FD0000-0x0000000075780000-memory.dmp

Filesize
7.7MB

Download
memory/3572-5-0x0000000005520000-0x000000000553E000-memory.dmp

Filesize
120KB

Download
memory/3572-2-0x0000000074FD0000-0x0000000075780000-memory.dmp

Filesize
7.7MB

Download
memory/3572-15-0x0000000074FD0000-0x0000000075780000-memory.dmp

Filesize
7.7MB

Download
memory/3572-0-0x0000000074FD0000-0x0000000075780000-memory.dmp

Filesize
7.7MB

Download
memory/3572-4-0x0000000005570000-0x0000000005580000-memory.dmp

Filesize
64KB

Download
memory/3572-3-0x0000000005B30000-0x00000000060D4000-memory.dmp

Filesize
5.6MB

Download
memory/3572-6-0x0000000005570000-0x0000000005580000-memory.dmp

Filesize
64KB

Download
memory/3572-1-0x0000000000B70000-0x0000000000B9E000-memory.dmp

Filesize
184KB

Download
memory/4552-25-0x0000000074FD0000-0x0000000075780000-memory.dmp

Filesize
7.7MB

Download
memory/4552-27-0x0000000004C80000-0x0000000004C90000-memory.dmp

Filesize
64KB

Download
memory/4552-28-0x0000000074FD0000-0x0000000075780000-memory.dmp

Filesize
7.7MB

Download
memory/4900-20-0x0000000005650000-0x0000000005660000-memory.dmp

Filesize
64KB

Download
memory/4900-19-0x0000000074FD0000-0x0000000075780000-memory.dmp

Filesize
7.7MB

Download
memory/4900-26-0x0000000074FD0000-0x0000000075780000-memory.dmp

Filesize
7.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads