asyncrat | 2c43108365bff7cfaa206e1232b973ec0028fe1f5ab7b0c64154cd27bc9d193e

General

Target

ad8002665212315615652315615dd45165456456f46456a46565465456a5641321564ca546546ff465426516516542564678.exe
Size

672KB
MD5

c15c06202479856ab3f043062ba19982
SHA1

7331fb30be702664f12c1b259d836526e8c4eaee
SHA256

2c43108365bff7cfaa206e1232b973ec0028fe1f5ab7b0c64154cd27bc9d193e
SHA512

2bb3e92e8786e22454a6a206f7fb90ecf37352f3e0f93dcaa3329b6865474ea1bd4f187390fa579addc68fddb2630a73e4bd918e5486f15963d40440af442445
SSDEEP

12288:GzpFvtttDZ0k4A1A+42wY99DgFA1acULgwpa6O8QlaIPbSf8CGnYXl:GFtth11AguFYHmy8QMsSf8GXl

Score

10^/10

asyncrat persistence rat

Malware Config

Signatures

AsyncRat
AsyncRAT is designed to remotely monitor and control other computers.
rat asyncrat

Async RAT payload 1 IoCs

rat

Processes:

resource	yara_rule
behavioral2/memory/3392-143-0x0000000000400000-0x000000000041A000-memory.dmp	asyncrat

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

ad8002665212315615652315615dd45165456456f46456a46565465456a5641321564ca546546ff465426516516542564678.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Control Panel\International\Geo\Nation	ad8002665212315615652315615dd45165456456f46456a46565465456a5641321564ca546546ff465426516516542564678.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

ad8002665212315615652315615dd45165456456f46456a46565465456a5641321564ca546546ff465426516516542564678.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Rohhceksk = "\"C:\\Users\\Admin\\AppData\\Roaming\\Kuaqjpe\\Rohhceksk.exe\""	ad8002665212315615652315615dd45165456456f46456a46565465456a5641321564ca546546ff465426516516542564678.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

ad8002665212315615652315615dd45165456456f46456a46565465456a5641321564ca546546ff465426516516542564678.exe

description	pid	process	target process
PID 4536 set thread context of 3392	4536	ad8002665212315615652315615dd45165456456f46456a46565465456a5641321564ca546546ff465426516516542564678.exe	InstallUtil.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

powershell.exe

pid process

4604 powershell.exe
4604 powershell.exe

pid	process
4604	powershell.exe
4604	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

powershell.exead8002665212315615652315615dd45165456456f46456a46565465456a5641321564ca546546ff465426516516542564678.exe

description	pid	process
Token: SeDebugPrivilege	4604	powershell.exe
Token: SeDebugPrivilege	4536	ad8002665212315615652315615dd45165456456f46456a46565465456a5641321564ca546546ff465426516516542564678.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

ad8002665212315615652315615dd45165456456f46456a46565465456a5641321564ca546546ff465426516516542564678.exe

description	pid	process	target process
PID 4536 wrote to memory of 4604	4536	ad8002665212315615652315615dd45165456456f46456a46565465456a5641321564ca546546ff465426516516542564678.exe	powershell.exe
PID 4536 wrote to memory of 4604	4536	ad8002665212315615652315615dd45165456456f46456a46565465456a5641321564ca546546ff465426516516542564678.exe	powershell.exe
PID 4536 wrote to memory of 4604	4536	ad8002665212315615652315615dd45165456456f46456a46565465456a5641321564ca546546ff465426516516542564678.exe	powershell.exe
PID 4536 wrote to memory of 3392	4536	ad8002665212315615652315615dd45165456456f46456a46565465456a5641321564ca546546ff465426516516542564678.exe	InstallUtil.exe
PID 4536 wrote to memory of 3392	4536	ad8002665212315615652315615dd45165456456f46456a46565465456a5641321564ca546546ff465426516516542564678.exe	InstallUtil.exe
PID 4536 wrote to memory of 3392	4536	ad8002665212315615652315615dd45165456456f46456a46565465456a5641321564ca546546ff465426516516542564678.exe	InstallUtil.exe
PID 4536 wrote to memory of 3392	4536	ad8002665212315615652315615dd45165456456f46456a46565465456a5641321564ca546546ff465426516516542564678.exe	InstallUtil.exe
PID 4536 wrote to memory of 3392	4536	ad8002665212315615652315615dd45165456456f46456a46565465456a5641321564ca546546ff465426516516542564678.exe	InstallUtil.exe
PID 4536 wrote to memory of 3392	4536	ad8002665212315615652315615dd45165456456f46456a46565465456a5641321564ca546546ff465426516516542564678.exe	InstallUtil.exe
PID 4536 wrote to memory of 3392	4536	ad8002665212315615652315615dd45165456456f46456a46565465456a5641321564ca546546ff465426516516542564678.exe	InstallUtil.exe
PID 4536 wrote to memory of 3392	4536	ad8002665212315615652315615dd45165456456f46456a46565465456a5641321564ca546546ff465426516516542564678.exe	InstallUtil.exe

C:\Users\Admin\AppData\Local\Temp\ad8002665212315615652315615dd45165456456f46456a46565465456a5641321564ca546546ff465426516516542564678.exe
"C:\Users\Admin\AppData\Local\Temp\ad8002665212315615652315615dd45165456456f46456a46565465456a5641321564ca546546ff465426516516542564678.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4536

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -enc UwB0AGEAcgB0AC0AUwBsAGUAZQBwACAALQBTAGUAYwBvAG4AZABzACAANQAwAA==
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4604

C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
2⤵
PID:3392

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/3392-142-0x0000000000000000-mapping.dmp

Download
memory/3392-143-0x0000000000400000-0x000000000041A000-memory.dmp

Filesize
104KB

Download
memory/4536-132-0x00000000006E0000-0x000000000078C000-memory.dmp

Filesize
688KB

Download
memory/4536-133-0x0000000005990000-0x00000000059B2000-memory.dmp

Filesize
136KB

Download
memory/4604-134-0x0000000000000000-mapping.dmp

Download
memory/4604-135-0x0000000002FF0000-0x0000000003026000-memory.dmp

Filesize
216KB

Download
memory/4604-136-0x0000000005870000-0x0000000005E98000-memory.dmp

Filesize
6.2MB

Download
memory/4604-137-0x0000000005680000-0x00000000056E6000-memory.dmp

Filesize
408KB

Download
memory/4604-138-0x00000000056F0000-0x0000000005756000-memory.dmp

Filesize
408KB

Download
memory/4604-139-0x0000000006620000-0x000000000663E000-memory.dmp

Filesize
120KB

Download
memory/4604-140-0x0000000007C60000-0x00000000082DA000-memory.dmp

Filesize
6.5MB

Download
memory/4604-141-0x0000000006B30000-0x0000000006B4A000-memory.dmp

Filesize
104KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

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Downloads