asyncrat | ae8a9e172bccbe1f002771f0142ed8811e2e7047301ac366e356b33762c34f8e

Analysis

max time kernel
118s
max time network
121s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
20-11-2024 03:22

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General

Target

ae8a9e172bccbe1f002771f0142ed8811e2e7047301ac366e356b33762c34f8eN.exe
Size

1.1MB
MD5

bfa2bc658d2270623baf2069bac872d0
SHA1

af61ae30d446da19a74294c367eb16a51b11cd48
SHA256

ae8a9e172bccbe1f002771f0142ed8811e2e7047301ac366e356b33762c34f8e
SHA512

ee40e1e2349b650ef9b8b4c27d3f37b6912332e8d7c6cb94ac9150cb2273701573fa8ad8052ae20cbf1eb2bc40dcca579b6bd174f2b1ca12f73ad1cb160d7180
SSDEEP

24576:8h2a3r7h4ZhmJZUC21Mkr1zs8/KotC0mJhlTWX:6mZ+SFpFsIRbX

Score

10^/10

asyncrat pesca discovery rat

Malware Config

Extracted

Family

asyncrat

Version

0.5.7A

Botnet

PESCA

pesca12.duckdns.org:7707

pesca12.duckdns.org:6606

Mutex

uuooxuxbnkywum

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

Drops startup file 1 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\TypeId.vbs	ae8a9e172bccbe1f002771f0142ed8811e2e7047301ac366e356b33762c34f8eN.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2096 set thread context of 5956	2096	ae8a9e172bccbe1f002771f0142ed8811e2e7047301ac366e356b33762c34f8eN.exe	30

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	ae8a9e172bccbe1f002771f0142ed8811e2e7047301ac366e356b33762c34f8eN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	InstallUtil.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	2096	ae8a9e172bccbe1f002771f0142ed8811e2e7047301ac366e356b33762c34f8eN.exe
Token: SeDebugPrivilege	2096	ae8a9e172bccbe1f002771f0142ed8811e2e7047301ac366e356b33762c34f8eN.exe
Token: SeDebugPrivilege	5956	InstallUtil.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2096 wrote to memory of 5956	2096	ae8a9e172bccbe1f002771f0142ed8811e2e7047301ac366e356b33762c34f8eN.exe	30
PID 2096 wrote to memory of 5956	2096	ae8a9e172bccbe1f002771f0142ed8811e2e7047301ac366e356b33762c34f8eN.exe	30
PID 2096 wrote to memory of 5956	2096	ae8a9e172bccbe1f002771f0142ed8811e2e7047301ac366e356b33762c34f8eN.exe	30
PID 2096 wrote to memory of 5956	2096	ae8a9e172bccbe1f002771f0142ed8811e2e7047301ac366e356b33762c34f8eN.exe	30
PID 2096 wrote to memory of 5956	2096	ae8a9e172bccbe1f002771f0142ed8811e2e7047301ac366e356b33762c34f8eN.exe	30
PID 2096 wrote to memory of 5956	2096	ae8a9e172bccbe1f002771f0142ed8811e2e7047301ac366e356b33762c34f8eN.exe	30
PID 2096 wrote to memory of 5956	2096	ae8a9e172bccbe1f002771f0142ed8811e2e7047301ac366e356b33762c34f8eN.exe	30
PID 2096 wrote to memory of 5956	2096	ae8a9e172bccbe1f002771f0142ed8811e2e7047301ac366e356b33762c34f8eN.exe	30
PID 2096 wrote to memory of 5956	2096	ae8a9e172bccbe1f002771f0142ed8811e2e7047301ac366e356b33762c34f8eN.exe	30
PID 2096 wrote to memory of 5956	2096	ae8a9e172bccbe1f002771f0142ed8811e2e7047301ac366e356b33762c34f8eN.exe	30
PID 2096 wrote to memory of 5956	2096	ae8a9e172bccbe1f002771f0142ed8811e2e7047301ac366e356b33762c34f8eN.exe	30
PID 2096 wrote to memory of 5956	2096	ae8a9e172bccbe1f002771f0142ed8811e2e7047301ac366e356b33762c34f8eN.exe	30

C:\Users\Admin\AppData\Local\Temp\ae8a9e172bccbe1f002771f0142ed8811e2e7047301ac366e356b33762c34f8eN.exe
"C:\Users\Admin\AppData\Local\Temp\ae8a9e172bccbe1f002771f0142ed8811e2e7047301ac366e356b33762c34f8eN.exe"
1⤵
- Drops startup file
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2096
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:5956

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

memory/2096-0-0x000000007432E000-0x000000007432F000-memory.dmp

Filesize
4KB

Download
memory/2096-1-0x0000000000130000-0x000000000024E000-memory.dmp

Filesize
1.1MB

Download
memory/2096-2-0x0000000074320000-0x0000000074A0E000-memory.dmp

Filesize
6.9MB

Download
memory/2096-3-0x0000000004FF0000-0x00000000050D8000-memory.dmp

Filesize
928KB

Download
memory/2096-4-0x00000000050E0000-0x00000000051C8000-memory.dmp

Filesize
928KB

Download
memory/2096-5-0x00000000050E0000-0x00000000051C2000-memory.dmp

Filesize
904KB

Download
memory/2096-6-0x00000000050E0000-0x00000000051C2000-memory.dmp

Filesize
904KB

Download
memory/2096-8-0x00000000050E0000-0x00000000051C2000-memory.dmp

Filesize
904KB

Download
memory/2096-10-0x00000000050E0000-0x00000000051C2000-memory.dmp

Filesize
904KB

Download
memory/2096-12-0x00000000050E0000-0x00000000051C2000-memory.dmp

Filesize
904KB

Download
memory/2096-14-0x00000000050E0000-0x00000000051C2000-memory.dmp

Filesize
904KB

Download
memory/2096-16-0x00000000050E0000-0x00000000051C2000-memory.dmp

Filesize
904KB

Download
memory/2096-18-0x00000000050E0000-0x00000000051C2000-memory.dmp

Filesize
904KB

Download
memory/2096-20-0x00000000050E0000-0x00000000051C2000-memory.dmp

Filesize
904KB

Download
memory/2096-22-0x00000000050E0000-0x00000000051C2000-memory.dmp

Filesize
904KB

Download
memory/2096-24-0x00000000050E0000-0x00000000051C2000-memory.dmp

Filesize
904KB

Download
memory/2096-26-0x00000000050E0000-0x00000000051C2000-memory.dmp

Filesize
904KB

Download
memory/2096-28-0x00000000050E0000-0x00000000051C2000-memory.dmp

Filesize
904KB

Download
memory/2096-30-0x00000000050E0000-0x00000000051C2000-memory.dmp

Filesize
904KB

Download
memory/2096-32-0x00000000050E0000-0x00000000051C2000-memory.dmp

Filesize
904KB

Download
memory/2096-34-0x00000000050E0000-0x00000000051C2000-memory.dmp

Filesize
904KB

Download
memory/2096-36-0x00000000050E0000-0x00000000051C2000-memory.dmp

Filesize
904KB

Download
memory/2096-38-0x00000000050E0000-0x00000000051C2000-memory.dmp

Filesize
904KB

Download
memory/2096-40-0x00000000050E0000-0x00000000051C2000-memory.dmp

Filesize
904KB

Download
memory/2096-42-0x00000000050E0000-0x00000000051C2000-memory.dmp

Filesize
904KB

Download
memory/2096-44-0x00000000050E0000-0x00000000051C2000-memory.dmp

Filesize
904KB

Download
memory/2096-46-0x00000000050E0000-0x00000000051C2000-memory.dmp

Filesize
904KB

Download
memory/2096-48-0x00000000050E0000-0x00000000051C2000-memory.dmp

Filesize
904KB

Download
memory/2096-50-0x00000000050E0000-0x00000000051C2000-memory.dmp

Filesize
904KB

Download
memory/2096-52-0x00000000050E0000-0x00000000051C2000-memory.dmp

Filesize
904KB

Download
memory/2096-54-0x00000000050E0000-0x00000000051C2000-memory.dmp

Filesize
904KB

Download
memory/2096-56-0x00000000050E0000-0x00000000051C2000-memory.dmp

Filesize
904KB

Download
memory/2096-58-0x00000000050E0000-0x00000000051C2000-memory.dmp

Filesize
904KB

Download
memory/2096-60-0x00000000050E0000-0x00000000051C2000-memory.dmp

Filesize
904KB

Download
memory/2096-62-0x00000000050E0000-0x00000000051C2000-memory.dmp

Filesize
904KB

Download
memory/2096-64-0x00000000050E0000-0x00000000051C2000-memory.dmp

Filesize
904KB

Download
memory/2096-66-0x00000000050E0000-0x00000000051C2000-memory.dmp

Filesize
904KB

Download
memory/2096-68-0x00000000050E0000-0x00000000051C2000-memory.dmp

Filesize
904KB

Download
memory/2096-1079-0x0000000074320000-0x0000000074A0E000-memory.dmp

Filesize
6.9MB

Download
memory/2096-1080-0x0000000001F60000-0x0000000001FBC000-memory.dmp

Filesize
368KB

Download
memory/2096-1081-0x00000000020E0000-0x000000000212C000-memory.dmp

Filesize
304KB

Download
memory/2096-1082-0x000000007432E000-0x000000007432F000-memory.dmp

Filesize
4KB

Download
memory/2096-1083-0x0000000074320000-0x0000000074A0E000-memory.dmp

Filesize
6.9MB

Download
memory/2096-1084-0x0000000002130000-0x0000000002184000-memory.dmp

Filesize
336KB

Download
memory/2096-1106-0x0000000074320000-0x0000000074A0E000-memory.dmp

Filesize
6.9MB

Download
memory/5956-1105-0x0000000000090000-0x00000000000A2000-memory.dmp

Filesize
72KB

Download
memory/5956-1107-0x0000000074320000-0x0000000074A0E000-memory.dmp

Filesize
6.9MB

Download
memory/5956-1108-0x0000000074320000-0x0000000074A0E000-memory.dmp

Filesize
6.9MB

Download
memory/5956-1109-0x0000000074320000-0x0000000074A0E000-memory.dmp

Filesize
6.9MB

Download
memory/5956-1110-0x0000000074320000-0x0000000074A0E000-memory.dmp

Filesize
6.9MB

Download