asyncrat | 9f4253bf0f732ccb4fda21095a106c47c147fd3322aa2f646671210c77bf7916

Analysis

max time kernel
115s
max time network
117s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
29-11-2024 19:18

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General

Target

9f4253bf0f732ccb4fda21095a106c47c147fd3322aa2f646671210c77bf7916.exe
Size

1.1MB
MD5

0d954025a427a68daaba3ffcdbea1429
SHA1

36a2b10db5d1007a1ad050b9fa42ba9ca4006bbc
SHA256

9f4253bf0f732ccb4fda21095a106c47c147fd3322aa2f646671210c77bf7916
SHA512

16069f5d311b78ad31933c35591fa3d67e5d7992c50fd3d549768f93b20e8fe14522c0dac622a67e0101896161c4f9546198606ab62a9e9bad119f332614129e
SSDEEP

24576:YaZwmO1/zNeHASYzwkvKeKXLH1wQ2C3ygq2mk6tyl:umO1/zcAS0fv02gqWl

Score

10^/10

asyncrat bb discovery persistence rat

Malware Config

Extracted

Family

asyncrat

Version

1.0.7

Botnet

noviembre07.ydns.eu:2525

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
Asyncrat family
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-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ExplrerEnglishLanguage = "C:\\Users\\Admin\\Pictures\\EnglishExplorer\\Bin\\ExplorerEnglish.exe"	9f4253bf0f732ccb4fda21095a106c47c147fd3322aa2f646671210c77bf7916.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 804 set thread context of 4364	804	9f4253bf0f732ccb4fda21095a106c47c147fd3322aa2f646671210c77bf7916.exe	93

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	csc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	9f4253bf0f732ccb4fda21095a106c47c147fd3322aa2f646671210c77bf7916.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 804 wrote to memory of 4364	804	9f4253bf0f732ccb4fda21095a106c47c147fd3322aa2f646671210c77bf7916.exe	93
PID 804 wrote to memory of 4364	804	9f4253bf0f732ccb4fda21095a106c47c147fd3322aa2f646671210c77bf7916.exe	93
PID 804 wrote to memory of 4364	804	9f4253bf0f732ccb4fda21095a106c47c147fd3322aa2f646671210c77bf7916.exe	93
PID 804 wrote to memory of 4364	804	9f4253bf0f732ccb4fda21095a106c47c147fd3322aa2f646671210c77bf7916.exe	93
PID 804 wrote to memory of 4364	804	9f4253bf0f732ccb4fda21095a106c47c147fd3322aa2f646671210c77bf7916.exe	93

C:\Users\Admin\AppData\Local\Temp\9f4253bf0f732ccb4fda21095a106c47c147fd3322aa2f646671210c77bf7916.exe
"C:\Users\Admin\AppData\Local\Temp\9f4253bf0f732ccb4fda21095a106c47c147fd3322aa2f646671210c77bf7916.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:804
- 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:4364

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

Replay Monitor

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Downloads

memory/804-2-0x0000000000400000-0x0000000000521000-memory.dmp

Filesize
1.1MB

Download
memory/804-0-0x0000000000400000-0x0000000000521000-memory.dmp

Filesize
1.1MB

Download
memory/804-4-0x0000000000400000-0x0000000000521000-memory.dmp

Filesize
1.1MB

Download
memory/804-9-0x0000000000400000-0x0000000000521000-memory.dmp

Filesize
1.1MB

Download
memory/804-7-0x0000000000400000-0x0000000000521000-memory.dmp

Filesize
1.1MB

Download
memory/804-11-0x0000000000400000-0x0000000000521000-memory.dmp

Filesize
1.1MB

Download
memory/804-6-0x0000000000400000-0x0000000000521000-memory.dmp

Filesize
1.1MB

Download
memory/804-1-0x0000000000436000-0x000000000044F000-memory.dmp

Filesize
100KB

Download
memory/804-14-0x0000000000436000-0x000000000044F000-memory.dmp

Filesize
100KB

Download
memory/4364-8-0x0000000000BC0000-0x0000000000BD2000-memory.dmp

Filesize
72KB

Download
memory/4364-12-0x000000007446E000-0x000000007446F000-memory.dmp

Filesize
4KB

Download
memory/4364-13-0x0000000074460000-0x0000000074C10000-memory.dmp

Filesize
7.7MB

Download
memory/4364-15-0x0000000074460000-0x0000000074C10000-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