asyncrat | 874cad3dbf057959b2c1f8c037f56fadffda7c3f8d80362c964a060941a7613c

Analysis

max time kernel
145s
max time network
149s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
24-07-2024 10:37

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General

Target

2024-07-24_d3b98483fe1797a813c90c50f4766a36_avoslocker.exe
Size

1.9MB
MD5

d3b98483fe1797a813c90c50f4766a36
SHA1

521a0ad51c31c16f51b281676ccb3f57ebac0689
SHA256

874cad3dbf057959b2c1f8c037f56fadffda7c3f8d80362c964a060941a7613c
SHA512

194c6b47ef97d18f91ac34fc993b737e3af833fae43c3148434004e4b6c8edfa0e62ecc685be627d2708c15b702f38a053b47cd22333d638c5aafda64bfdd339
SSDEEP

49152:cBhZayP3pgXWFVeVpPsQgw5stv/JWu/ALmVk+j4UUbIwL/+NkVxT4BVZvutzlsjM:c1ZFVeVpUnO

Score

10^/10

asyncrat mercenarios-oro discovery persistence rat

Malware Config

Extracted

Family

asyncrat

Version

1.0.7

Botnet

MERCENARIOS-ORO

proyectoxman1.casacam.net:8010

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

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-940600906-3464502421-4240639183-1000\Software\Microsoft\Windows\CurrentVersion\Run\Niiiiuttu = "C:\\Users\\Admin\\Documents\\Ounsa\\CoxcoxUpdater.exe"	2024-07-24_d3b98483fe1797a813c90c50f4766a36_avoslocker.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2692 set thread context of 2320	2692	2024-07-24_d3b98483fe1797a813c90c50f4766a36_avoslocker.exe	31

System Location Discovery: System Language Discovery 1 TTPs 2 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	2024-07-24_d3b98483fe1797a813c90c50f4766a36_avoslocker.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	csc.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2692 wrote to memory of 2320	2692	2024-07-24_d3b98483fe1797a813c90c50f4766a36_avoslocker.exe	31
PID 2692 wrote to memory of 2320	2692	2024-07-24_d3b98483fe1797a813c90c50f4766a36_avoslocker.exe	31
PID 2692 wrote to memory of 2320	2692	2024-07-24_d3b98483fe1797a813c90c50f4766a36_avoslocker.exe	31
PID 2692 wrote to memory of 2320	2692	2024-07-24_d3b98483fe1797a813c90c50f4766a36_avoslocker.exe	31
PID 2692 wrote to memory of 2320	2692	2024-07-24_d3b98483fe1797a813c90c50f4766a36_avoslocker.exe	31
PID 2692 wrote to memory of 2320	2692	2024-07-24_d3b98483fe1797a813c90c50f4766a36_avoslocker.exe	31

C:\Users\Admin\AppData\Local\Temp\2024-07-24_d3b98483fe1797a813c90c50f4766a36_avoslocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-07-24_d3b98483fe1797a813c90c50f4766a36_avoslocker.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2692
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2320

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/2320-8-0x0000000000080000-0x0000000000092000-memory.dmp

Filesize
72KB

Download
memory/2320-6-0x0000000000080000-0x0000000000092000-memory.dmp

Filesize
72KB

Download
memory/2320-15-0x00000000746B0000-0x0000000074D9E000-memory.dmp

Filesize
6.9MB

Download
memory/2320-14-0x00000000746BE000-0x00000000746BF000-memory.dmp

Filesize
4KB

Download
memory/2320-4-0x0000000000080000-0x0000000000092000-memory.dmp

Filesize
72KB

Download
memory/2320-5-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

Filesize
4KB

Download
memory/2320-13-0x00000000746B0000-0x0000000074D9E000-memory.dmp

Filesize
6.9MB

Download
memory/2320-10-0x0000000000080000-0x0000000000092000-memory.dmp

Filesize
72KB

Download
memory/2320-12-0x00000000746BE000-0x00000000746BF000-memory.dmp

Filesize
4KB

Download
memory/2692-0-0x0000000000400000-0x00000000005EB000-memory.dmp

Filesize
1.9MB

Download
memory/2692-11-0x0000000000400000-0x00000000005EB000-memory.dmp

Filesize
1.9MB

Download
memory/2692-1-0x0000000000407000-0x0000000000421000-memory.dmp

Filesize
104KB

Download
memory/2692-3-0x0000000000400000-0x00000000005EB000-memory.dmp

Filesize
1.9MB

Download
memory/2692-2-0x0000000000400000-0x00000000005EB000-memory.dmp

Filesize
1.9MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads