asyncrat | 7100af497cdd8e133de63917b8d9ecffadb241e7f681c8cdae02bffbf269f2ba

Analysis

max time kernel
142s
max time network
147s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
16-12-2024 21:47

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General

Target

7100af497cdd8e133de63917b8d9ecffadb241e7f681c8cdae02bffbf269f2ba.exe
Size

8.7MB
MD5

691c4944273ebdee88b7819b033b9dab
SHA1

e1b12c305c442ef82ebbeea652fc25bc819b1c15
SHA256

7100af497cdd8e133de63917b8d9ecffadb241e7f681c8cdae02bffbf269f2ba
SHA512

dc532cab6157f652ae6d0c8179f034a7306d88aa374078c461abff1156cacce8e50595d426ef577872ea463cd87558403e24d027e718e88e4fd869a4ce2746ec
SSDEEP

98304:oRNjkDuX7yiWmcTYuVEWilcuiKS6m4goQ1K5O/i37fkQOsjj3FVz6JT4hQ5jFLp2:oRNoD1iET3mO/irpv1tvC5LpVO8g

Score

10^/10

asyncrat dicembrinos-12 discovery persistence rat

Malware Config

Extracted

Family

asyncrat

Version

1.0.7

Botnet

Dicembrinos-12

cascam12.casacam.net:8855

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-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Windows\CurrentVersion\Run\EraserHardSdk = "C:\\Users\\Admin\\Favorites\\EraserHard\\sdk\\EraserHardSdk.exe"	7100af497cdd8e133de63917b8d9ecffadb241e7f681c8cdae02bffbf269f2ba.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2384 set thread context of 2044	2384	7100af497cdd8e133de63917b8d9ecffadb241e7f681c8cdae02bffbf269f2ba.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	7100af497cdd8e133de63917b8d9ecffadb241e7f681c8cdae02bffbf269f2ba.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	csc.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2384 wrote to memory of 2044	2384	7100af497cdd8e133de63917b8d9ecffadb241e7f681c8cdae02bffbf269f2ba.exe	31
PID 2384 wrote to memory of 2044	2384	7100af497cdd8e133de63917b8d9ecffadb241e7f681c8cdae02bffbf269f2ba.exe	31
PID 2384 wrote to memory of 2044	2384	7100af497cdd8e133de63917b8d9ecffadb241e7f681c8cdae02bffbf269f2ba.exe	31
PID 2384 wrote to memory of 2044	2384	7100af497cdd8e133de63917b8d9ecffadb241e7f681c8cdae02bffbf269f2ba.exe	31
PID 2384 wrote to memory of 2044	2384	7100af497cdd8e133de63917b8d9ecffadb241e7f681c8cdae02bffbf269f2ba.exe	31
PID 2384 wrote to memory of 2044	2384	7100af497cdd8e133de63917b8d9ecffadb241e7f681c8cdae02bffbf269f2ba.exe	31

C:\Users\Admin\AppData\Local\Temp\7100af497cdd8e133de63917b8d9ecffadb241e7f681c8cdae02bffbf269f2ba.exe
"C:\Users\Admin\AppData\Local\Temp\7100af497cdd8e133de63917b8d9ecffadb241e7f681c8cdae02bffbf269f2ba.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2384
- 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:2044

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/2044-7-0x0000000000080000-0x0000000000092000-memory.dmp

Filesize
72KB

Download
memory/2044-9-0x0000000000080000-0x0000000000092000-memory.dmp

Filesize
72KB

Download
memory/2044-3-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

Filesize
4KB

Download
memory/2044-2-0x0000000000080000-0x0000000000092000-memory.dmp

Filesize
72KB

Download
memory/2044-5-0x0000000000080000-0x0000000000092000-memory.dmp

Filesize
72KB

Download
memory/2044-10-0x0000000000230000-0x0000000000444000-memory.dmp

Filesize
2.1MB

Download
memory/2384-0-0x0000000000AAE000-0x0000000000AB1000-memory.dmp

Filesize
12KB

Download
memory/2384-1-0x0000000000400000-0x0000000000D0A000-memory.dmp

Filesize
9.0MB

Download
memory/2384-11-0x0000000000400000-0x0000000000D0A000-memory.dmp

Filesize
9.0MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads