asyncrat | 5fbd4e2c42e19e7ee561183ca6b2ded2f8049a890951704c799e8b4a016ab817

Analysis

max time kernel
93s
max time network
147s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
26-11-2024 23:43

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General

Target

BotKiller.exe
Size

6KB
MD5

10d199b2efdb69ed343f5cd4044b7def
SHA1

1f218983db04d9b7b31a67aeead5a94ca5d3dc80
SHA256

5fbd4e2c42e19e7ee561183ca6b2ded2f8049a890951704c799e8b4a016ab817
SHA512

682feb271c12a847b69f1ac92ad7d5cad18b145b64af83dbe7fd0f6282be8bf6091323ca16bc509f789a68e74e17eb1484fce907f9a0562237b40572e0e8852c
SSDEEP

96:1SJmM+BVOGjYKyhp+Aloz0yD/TB2uJW9wzNt:1smHOhpdXyLEuJIS

Score

10^/10

asyncrat default rat

Malware Config

Extracted

Family

asyncrat

Botnet

Default

technical-southwest.gl.at.ply.gg:58694

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

Async RAT payload 1 IoCs

rat

Processes:

resource	yara_rule
behavioral2/files/0x000b000000023b79-7.dat	family_asyncrat

Downloads MZ/PE file

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:

BotKiller.exe

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\Control Panel\International\Geo\Nation	BotKiller.exe

Executes dropped EXE 1 IoCs

Processes:

Loader.exe

pid	Process
2540	Loader.exe

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 23 IoCs

Processes:

BotKiller.exe

pid	Process
4296	BotKiller.exe
4296	BotKiller.exe
4296	BotKiller.exe
4296	BotKiller.exe
4296	BotKiller.exe
4296	BotKiller.exe
4296	BotKiller.exe
4296	BotKiller.exe
4296	BotKiller.exe
4296	BotKiller.exe
4296	BotKiller.exe
4296	BotKiller.exe
4296	BotKiller.exe
4296	BotKiller.exe
4296	BotKiller.exe
4296	BotKiller.exe
4296	BotKiller.exe
4296	BotKiller.exe
4296	BotKiller.exe
4296	BotKiller.exe
4296	BotKiller.exe
4296	BotKiller.exe
4296	BotKiller.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

BotKiller.exeLoader.exe

description	pid	Process
Token: SeDebugPrivilege	4296	BotKiller.exe
Token: SeDebugPrivilege	2540	Loader.exe

Suspicious use of WriteProcessMemory 2 IoCs

Processes:

BotKiller.exe

description	pid	Process	procid_target
PID 4296 wrote to memory of 2540	4296	BotKiller.exe	83
PID 4296 wrote to memory of 2540	4296	BotKiller.exe	83

C:\Users\Admin\AppData\Local\Temp\BotKiller.exe
"C:\Users\Admin\AppData\Local\Temp\BotKiller.exe"
1⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4296
- C:\Users\Admin\AppData\Local\Temp\Loader.exe
  "C:\Users\Admin\AppData\Local\Temp\Loader.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:2540

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\Loader.exe

Filesize
63KB

MD5
56c640c4191b4b95ba344032afd14e77

SHA1
c93a0fd32b46718ca3bc7d1c78ae6236b88ef3c9

SHA256
ebd4b1ab90350e2f13d46f2a356d5a637d5bec704cf3af211c43a89cb11dd142

SHA512
617512f96443b7cc9cc315d2eb0322d8b359218d459e80821563336b67ac263f1da9b00c75bde73320d6540572552c47b436c683c862f19b5ed470273001e63e

Download Submit
memory/2540-16-0x00007FFCBD550000-0x00007FFCBE011000-memory.dmp

Filesize
10.8MB

Download
memory/2540-24-0x00007FFCBD550000-0x00007FFCBE011000-memory.dmp

Filesize
10.8MB

Download
memory/2540-27-0x000000001BB00000-0x000000001BB1E000-memory.dmp

Filesize
120KB

Download
memory/2540-15-0x0000000000E30000-0x0000000000E46000-memory.dmp

Filesize
88KB

Download
memory/2540-26-0x000000001BAB0000-0x000000001BAE4000-memory.dmp

Filesize
208KB

Download
memory/2540-25-0x000000001CED0000-0x000000001CF46000-memory.dmp

Filesize
472KB

Download
memory/2540-18-0x00007FFCBD550000-0x00007FFCBE011000-memory.dmp

Filesize
10.8MB

Download
memory/2540-19-0x00007FFCBD550000-0x00007FFCBE011000-memory.dmp

Filesize
10.8MB

Download
memory/2540-22-0x00007FFCBD550000-0x00007FFCBE011000-memory.dmp

Filesize
10.8MB

Download
memory/2540-23-0x00007FFCBD550000-0x00007FFCBE011000-memory.dmp

Filesize
10.8MB

Download
memory/4296-2-0x00007FFCBD550000-0x00007FFCBE011000-memory.dmp

Filesize
10.8MB

Download
memory/4296-0-0x00007FFCBD553000-0x00007FFCBD555000-memory.dmp

Filesize
8KB

Download
memory/4296-17-0x00007FFCBD550000-0x00007FFCBE011000-memory.dmp

Filesize
10.8MB

Download
memory/4296-1-0x00000202902B0000-0x00000202902B6000-memory.dmp

Filesize
24KB

Download