asyncrat | 5a3152db74b5749cac0edc405cc09977c236b5433349946233eeb6616ff6d1c9

Analysis

max time kernel
139s
max time network
147s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
09-10-2024 05:26

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General

Target

2bacead73dde3c7e51b68340af645df1_JaffaCakes118.exe
Size

365KB
MD5

2bacead73dde3c7e51b68340af645df1
SHA1

f1d0d2bcd00cdeff0298281b3613a81b1a50e025
SHA256

5a3152db74b5749cac0edc405cc09977c236b5433349946233eeb6616ff6d1c9
SHA512

6eeeaa0d2e94c2f879463a7b6d3c259b2377f0802ff4d114394863137fce8f46073d92c883928368ec56b2c996b0a19f0816702121b272bdf10927ecc089c3e2
SSDEEP

6144:A74ulVbGPqrjBbBVDCcCVdKrLmzz03iU8dnH:A74GgP+dbTtCi/mJnH

Score

10^/10

asyncrat default discovery rat

Malware Config

Extracted

Family

asyncrat

Version

0.5.7B

Botnet

Default

64.44.167.67:6900

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

Drops startup file 2 IoCs

Processes:

PowerShell.exe

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

Suspicious use of SetThreadContext 1 IoCs

Processes:

2bacead73dde3c7e51b68340af645df1_JaffaCakes118.exe

description	pid	process	target process
PID 2012 set thread context of 4032	2012	2bacead73dde3c7e51b68340af645df1_JaffaCakes118.exe	2bacead73dde3c7e51b68340af645df1_JaffaCakes118.exe

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

Processes:

2bacead73dde3c7e51b68340af645df1_JaffaCakes118.exePowerShell.exe2bacead73dde3c7e51b68340af645df1_JaffaCakes118.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2bacead73dde3c7e51b68340af645df1_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	PowerShell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2bacead73dde3c7e51b68340af645df1_JaffaCakes118.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

PowerShell.exe

pid process

5104 PowerShell.exe
5104 PowerShell.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

2bacead73dde3c7e51b68340af645df1_JaffaCakes118.exePowerShell.exe

description pid process

Token: SeDebugPrivilege 2012 2bacead73dde3c7e51b68340af645df1_JaffaCakes118.exe
Token: SeDebugPrivilege 5104 PowerShell.exe

pid	process
5104	PowerShell.exe
5104	PowerShell.exe

description	pid	process
Token: SeDebugPrivilege	2012	2bacead73dde3c7e51b68340af645df1_JaffaCakes118.exe
Token: SeDebugPrivilege	5104	PowerShell.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

2bacead73dde3c7e51b68340af645df1_JaffaCakes118.exe

description	pid	process	target process
PID 2012 wrote to memory of 5104	2012	2bacead73dde3c7e51b68340af645df1_JaffaCakes118.exe	PowerShell.exe
PID 2012 wrote to memory of 5104	2012	2bacead73dde3c7e51b68340af645df1_JaffaCakes118.exe	PowerShell.exe
PID 2012 wrote to memory of 5104	2012	2bacead73dde3c7e51b68340af645df1_JaffaCakes118.exe	PowerShell.exe
PID 2012 wrote to memory of 4032	2012	2bacead73dde3c7e51b68340af645df1_JaffaCakes118.exe	2bacead73dde3c7e51b68340af645df1_JaffaCakes118.exe
PID 2012 wrote to memory of 4032	2012	2bacead73dde3c7e51b68340af645df1_JaffaCakes118.exe	2bacead73dde3c7e51b68340af645df1_JaffaCakes118.exe
PID 2012 wrote to memory of 4032	2012	2bacead73dde3c7e51b68340af645df1_JaffaCakes118.exe	2bacead73dde3c7e51b68340af645df1_JaffaCakes118.exe
PID 2012 wrote to memory of 4032	2012	2bacead73dde3c7e51b68340af645df1_JaffaCakes118.exe	2bacead73dde3c7e51b68340af645df1_JaffaCakes118.exe
PID 2012 wrote to memory of 4032	2012	2bacead73dde3c7e51b68340af645df1_JaffaCakes118.exe	2bacead73dde3c7e51b68340af645df1_JaffaCakes118.exe
PID 2012 wrote to memory of 4032	2012	2bacead73dde3c7e51b68340af645df1_JaffaCakes118.exe	2bacead73dde3c7e51b68340af645df1_JaffaCakes118.exe
PID 2012 wrote to memory of 4032	2012	2bacead73dde3c7e51b68340af645df1_JaffaCakes118.exe	2bacead73dde3c7e51b68340af645df1_JaffaCakes118.exe
PID 2012 wrote to memory of 4032	2012	2bacead73dde3c7e51b68340af645df1_JaffaCakes118.exe	2bacead73dde3c7e51b68340af645df1_JaffaCakes118.exe

C:\Users\Admin\AppData\Local\Temp\2bacead73dde3c7e51b68340af645df1_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\2bacead73dde3c7e51b68340af645df1_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2012

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\PowerShell.exe
"PowerShell" copy-item 'C:\Users\Admin\AppData\Local\Temp\2bacead73dde3c7e51b68340af645df1_JaffaCakes118.exe' 'C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Syscht.exe'
2⤵
- Drops startup file
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:5104

C:\Users\Admin\AppData\Local\Temp\2bacead73dde3c7e51b68340af645df1_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\2bacead73dde3c7e51b68340af645df1_JaffaCakes118.exe"
2⤵
- System Location Discovery: System Language Discovery
PID:4032

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

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Downloads

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_b40inow1.lit.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/2012-28-0x0000000004DD0000-0x0000000004DE5000-memory.dmp

Filesize
84KB

Download
memory/2012-10-0x0000000004DD0000-0x0000000004DE5000-memory.dmp

Filesize
84KB

Download
memory/2012-3-0x0000000074BFE000-0x0000000074BFF000-memory.dmp

Filesize
4KB

Download
memory/2012-4-0x0000000005670000-0x0000000005C14000-memory.dmp

Filesize
5.6MB

Download
memory/2012-30-0x0000000004DD0000-0x0000000004DE5000-memory.dmp

Filesize
84KB

Download
memory/2012-7-0x0000000004DD0000-0x0000000004DEC000-memory.dmp

Filesize
112KB

Download
memory/2012-0-0x0000000074BFE000-0x0000000074BFF000-memory.dmp

Filesize
4KB

Download
memory/2012-9-0x0000000004DD0000-0x0000000004DE5000-memory.dmp

Filesize
84KB

Download
memory/2012-18-0x0000000004DD0000-0x0000000004DE5000-memory.dmp

Filesize
84KB

Download
memory/2012-22-0x0000000004DD0000-0x0000000004DE5000-memory.dmp

Filesize
84KB

Download
memory/2012-33-0x0000000074BF0000-0x00000000753A0000-memory.dmp

Filesize
7.7MB

Download
memory/2012-32-0x0000000004DD0000-0x0000000004DE5000-memory.dmp

Filesize
84KB

Download
memory/2012-2-0x0000000004E20000-0x0000000004EBC000-memory.dmp

Filesize
624KB

Download
memory/2012-26-0x0000000004DD0000-0x0000000004DE5000-memory.dmp

Filesize
84KB

Download
memory/2012-38-0x0000000074BF0000-0x00000000753A0000-memory.dmp

Filesize
7.7MB

Download
memory/2012-12-0x0000000004DD0000-0x0000000004DE5000-memory.dmp

Filesize
84KB

Download
memory/2012-14-0x0000000004DD0000-0x0000000004DE5000-memory.dmp

Filesize
84KB

Download
memory/2012-1-0x00000000003D0000-0x0000000000432000-memory.dmp

Filesize
392KB

Download
memory/2012-61-0x0000000074BF0000-0x00000000753A0000-memory.dmp

Filesize
7.7MB

Download
memory/2012-16-0x0000000004DD0000-0x0000000004DE5000-memory.dmp

Filesize
84KB

Download
memory/2012-20-0x0000000004DD0000-0x0000000004DE5000-memory.dmp

Filesize
84KB

Download
memory/2012-24-0x0000000004DD0000-0x0000000004DE5000-memory.dmp

Filesize
84KB

Download
memory/4032-49-0x0000000074BF0000-0x00000000753A0000-memory.dmp

Filesize
7.7MB

Download
memory/4032-59-0x0000000074BF0000-0x00000000753A0000-memory.dmp

Filesize
7.7MB

Download
memory/4032-62-0x0000000074BF0000-0x00000000753A0000-memory.dmp

Filesize
7.7MB

Download
memory/4032-34-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/5104-37-0x0000000005B30000-0x0000000005B96000-memory.dmp

Filesize
408KB

Download
memory/5104-36-0x0000000005AC0000-0x0000000005B26000-memory.dmp

Filesize
408KB

Download
memory/5104-35-0x00000000051F0000-0x0000000005212000-memory.dmp

Filesize
136KB

Download
memory/5104-51-0x0000000006250000-0x000000000629C000-memory.dmp

Filesize
304KB

Download
memory/5104-48-0x0000000005BA0000-0x0000000005EF4000-memory.dmp

Filesize
3.3MB

Download
memory/5104-52-0x00000000073E0000-0x0000000007476000-memory.dmp

Filesize
600KB

Download
memory/5104-53-0x00000000066F0000-0x000000000670A000-memory.dmp

Filesize
104KB

Download
memory/5104-6-0x0000000074BF0000-0x00000000753A0000-memory.dmp

Filesize
7.7MB

Download
memory/5104-54-0x0000000006740000-0x0000000006762000-memory.dmp

Filesize
136KB

Download
memory/5104-58-0x0000000074BF0000-0x00000000753A0000-memory.dmp

Filesize
7.7MB

Download
memory/5104-50-0x0000000006230000-0x000000000624E000-memory.dmp

Filesize
120KB

Download
memory/5104-5-0x00000000028A0000-0x00000000028D6000-memory.dmp

Filesize
216KB

Download
memory/5104-8-0x00000000052A0000-0x00000000058C8000-memory.dmp

Filesize
6.2MB

Download