asyncrat | 4640e247dbd962ee4f1a72779a2690c6fe947ae010af955039802e90be240bd0

Analysis

max time kernel
149s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
31-12-2024 03:57

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

JaffaCakes118_039be8dcab701779e699c21fa790e8e0.exe
Size

790KB
MD5

039be8dcab701779e699c21fa790e8e0
SHA1

fc2bb44430052941f998a4a469b719f851a600d1
SHA256

4640e247dbd962ee4f1a72779a2690c6fe947ae010af955039802e90be240bd0
SHA512

b4afe7fa5437a46280b88cff35e8bb12dbe9221dc807a268fed01c1524303f1649166657eabfbd882f21486b12e9014dfd6ae626b52c2a480920a3553d13970f
SSDEEP

12288:FVsXbghN8QYXJSWU4xhUQewPvdqp+q5VAgBwP3tNNVtl5w:FObwWtJZU6hUOFqpPAgBgtNNVfe

Score

10^/10

asyncrat default discovery rat

Malware Config

Extracted

Family

asyncrat

Version

0.5.7B

Botnet

Default

194.5.97.212:1199

194.5.98.70:1199

Mutex

AsyncMutex_6SI8OkPnk

Attributes

delay
3
install
false
install_folder
%AppData%

aes.plain

Signatures

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

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\System.exe	PowerShell.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\System.exe	PowerShell.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1168 set thread context of 2604	1168	JaffaCakes118_039be8dcab701779e699c21fa790e8e0.exe	92

System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_039be8dcab701779e699c21fa790e8e0.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	PowerShell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_039be8dcab701779e699c21fa790e8e0.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3904	PowerShell.exe
3904	PowerShell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3904	PowerShell.exe
Token: SeDebugPrivilege	1168	JaffaCakes118_039be8dcab701779e699c21fa790e8e0.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 1168 wrote to memory of 3904	1168	JaffaCakes118_039be8dcab701779e699c21fa790e8e0.exe	82
PID 1168 wrote to memory of 3904	1168	JaffaCakes118_039be8dcab701779e699c21fa790e8e0.exe	82
PID 1168 wrote to memory of 3904	1168	JaffaCakes118_039be8dcab701779e699c21fa790e8e0.exe	82
PID 1168 wrote to memory of 2604	1168	JaffaCakes118_039be8dcab701779e699c21fa790e8e0.exe	92
PID 1168 wrote to memory of 2604	1168	JaffaCakes118_039be8dcab701779e699c21fa790e8e0.exe	92
PID 1168 wrote to memory of 2604	1168	JaffaCakes118_039be8dcab701779e699c21fa790e8e0.exe	92
PID 1168 wrote to memory of 2604	1168	JaffaCakes118_039be8dcab701779e699c21fa790e8e0.exe	92
PID 1168 wrote to memory of 2604	1168	JaffaCakes118_039be8dcab701779e699c21fa790e8e0.exe	92
PID 1168 wrote to memory of 2604	1168	JaffaCakes118_039be8dcab701779e699c21fa790e8e0.exe	92
PID 1168 wrote to memory of 2604	1168	JaffaCakes118_039be8dcab701779e699c21fa790e8e0.exe	92
PID 1168 wrote to memory of 2604	1168	JaffaCakes118_039be8dcab701779e699c21fa790e8e0.exe	92

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_039be8dcab701779e699c21fa790e8e0.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_039be8dcab701779e699c21fa790e8e0.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1168
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\PowerShell.exe
  "PowerShell" copy-item 'C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_039be8dcab701779e699c21fa790e8e0.exe' 'C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\System.exe'
  2⤵
  - Drops startup file
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3904
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_039be8dcab701779e699c21fa790e8e0.exe
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_039be8dcab701779e699c21fa790e8e0.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2604

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_cpujm1vg.zqe.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/1168-45-0x0000000004E10000-0x0000000004E25000-memory.dmp

Filesize
84KB

Download
memory/1168-41-0x0000000004E10000-0x0000000004E25000-memory.dmp

Filesize
84KB

Download
memory/1168-34-0x0000000004E10000-0x0000000004E25000-memory.dmp

Filesize
84KB

Download
memory/1168-4-0x0000000005150000-0x00000000056F4000-memory.dmp

Filesize
5.6MB

Download
memory/1168-63-0x0000000075190000-0x0000000075940000-memory.dmp

Filesize
7.7MB

Download
memory/1168-60-0x0000000075190000-0x0000000075940000-memory.dmp

Filesize
7.7MB

Download
memory/1168-35-0x0000000004E10000-0x0000000004E25000-memory.dmp

Filesize
84KB

Download
memory/1168-33-0x0000000004E10000-0x0000000004E2C000-memory.dmp

Filesize
112KB

Download
memory/1168-37-0x0000000004E10000-0x0000000004E25000-memory.dmp

Filesize
84KB

Download
memory/1168-39-0x0000000004E10000-0x0000000004E25000-memory.dmp

Filesize
84KB

Download
memory/1168-3-0x0000000004B00000-0x0000000004B9C000-memory.dmp

Filesize
624KB

Download
memory/1168-1-0x0000000000040000-0x000000000010C000-memory.dmp

Filesize
816KB

Download
memory/1168-32-0x0000000075190000-0x0000000075940000-memory.dmp

Filesize
7.7MB

Download
memory/1168-43-0x0000000004E10000-0x0000000004E25000-memory.dmp

Filesize
84KB

Download
memory/1168-0-0x000000007519E000-0x000000007519F000-memory.dmp

Filesize
4KB

Download
memory/1168-49-0x0000000004E10000-0x0000000004E25000-memory.dmp

Filesize
84KB

Download
memory/1168-51-0x0000000004E10000-0x0000000004E25000-memory.dmp

Filesize
84KB

Download
memory/1168-53-0x0000000004E10000-0x0000000004E25000-memory.dmp

Filesize
84KB

Download
memory/1168-55-0x0000000004E10000-0x0000000004E25000-memory.dmp

Filesize
84KB

Download
memory/1168-31-0x000000007519E000-0x000000007519F000-memory.dmp

Filesize
4KB

Download
memory/1168-57-0x0000000004E10000-0x0000000004E25000-memory.dmp

Filesize
84KB

Download
memory/1168-47-0x0000000004E10000-0x0000000004E25000-memory.dmp

Filesize
84KB

Download
memory/1168-2-0x0000000075190000-0x0000000075940000-memory.dmp

Filesize
7.7MB

Download
memory/2604-66-0x0000000075190000-0x0000000075940000-memory.dmp

Filesize
7.7MB

Download
memory/2604-65-0x0000000075190000-0x0000000075940000-memory.dmp

Filesize
7.7MB

Download
memory/2604-62-0x0000000075190000-0x0000000075940000-memory.dmp

Filesize
7.7MB

Download
memory/2604-59-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2604-64-0x0000000075190000-0x0000000075940000-memory.dmp

Filesize
7.7MB

Download
memory/3904-25-0x0000000006890000-0x00000000068AA000-memory.dmp

Filesize
104KB

Download
memory/3904-6-0x0000000075190000-0x0000000075940000-memory.dmp

Filesize
7.7MB

Download
memory/3904-24-0x00000000073E0000-0x0000000007476000-memory.dmp

Filesize
600KB

Download
memory/3904-8-0x0000000005560000-0x0000000005B88000-memory.dmp

Filesize
6.2MB

Download
memory/3904-23-0x00000000063F0000-0x000000000643C000-memory.dmp

Filesize
304KB

Download
memory/3904-9-0x0000000005440000-0x0000000005462000-memory.dmp

Filesize
136KB

Download
memory/3904-7-0x0000000075190000-0x0000000075940000-memory.dmp

Filesize
7.7MB

Download
memory/3904-11-0x0000000005C40000-0x0000000005CA6000-memory.dmp

Filesize
408KB

Download
memory/3904-26-0x0000000006910000-0x0000000006932000-memory.dmp

Filesize
136KB

Download
memory/3904-30-0x0000000075190000-0x0000000075940000-memory.dmp

Filesize
7.7MB

Download
memory/3904-5-0x0000000004E30000-0x0000000004E66000-memory.dmp

Filesize
216KB

Download
memory/3904-10-0x00000000054E0000-0x0000000005546000-memory.dmp

Filesize
408KB

Download
memory/3904-17-0x0000000005DF0000-0x0000000006144000-memory.dmp

Filesize
3.3MB

Download
memory/3904-22-0x00000000063D0000-0x00000000063EE000-memory.dmp

Filesize
120KB

Download