asyncrat | 46ab2d0bce6511cf67cf931113da14de84304a4e9a814dbb8a88d0034e008ce7

Analysis

max time kernel
115s
max time network
120s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
03-10-2024 14:46

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General

Target

46ab2d0bce6511cf67cf931113da14de84304a4e9a814dbb8a88d0034e008ce7N.exe
Size

1.4MB
MD5

8a34c7928d32b3ad2fb0836dec8f5350
SHA1

5a1042858c92d1b3a98b26668474ad0d43798f95
SHA256

46ab2d0bce6511cf67cf931113da14de84304a4e9a814dbb8a88d0034e008ce7
SHA512

7d3f47e65fee77a2e5359b6edf401a3935ab48fb9c6721e7c2cc88db2e5e70aba3db97b5bfcc5c1ef369ac79d70cd0b170af4bf8af8b08017490c34fbf3e9ecf
SSDEEP

24576:muDXTIGaPhEYzUzA0ukoIQto15dl9kYc5FDL6qwB0nGhPeXocXbotpNrUMAVfO8a:JDjlabwz9upIQtk5b9ZcWqwB0n2Wo+KX

Score

10^/10

asyncrat default rat

Malware Config

Extracted

Family

asyncrat

Botnet

Default

127.0.0.1:4444

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

Async RAT payload 1 IoCs

rat

Processes:

resource	yara_rule
C:\Users\Admin\AppData\Local\Temp\RarSFX0\infected.exe	family_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:

46ab2d0bce6511cf67cf931113da14de84304a4e9a814dbb8a88d0034e008ce7N.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2170637797-568393320-3232933035-1000\Control Panel\International\Geo\Nation	46ab2d0bce6511cf67cf931113da14de84304a4e9a814dbb8a88d0034e008ce7N.exe

Executes dropped EXE 1 IoCs

Processes:

infected.exe

pid process

2616 infected.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

infected.exe

description pid process

Token: SeDebugPrivilege 2616 infected.exe

pid	process
2616	infected.exe

description	pid	process
Token: SeDebugPrivilege	2616	infected.exe

Suspicious use of WriteProcessMemory 2 IoCs

Processes:

46ab2d0bce6511cf67cf931113da14de84304a4e9a814dbb8a88d0034e008ce7N.exe

description	pid	process	target process
PID 1808 wrote to memory of 2616	1808	46ab2d0bce6511cf67cf931113da14de84304a4e9a814dbb8a88d0034e008ce7N.exe	infected.exe
PID 1808 wrote to memory of 2616	1808	46ab2d0bce6511cf67cf931113da14de84304a4e9a814dbb8a88d0034e008ce7N.exe	infected.exe

C:\Users\Admin\AppData\Local\Temp\46ab2d0bce6511cf67cf931113da14de84304a4e9a814dbb8a88d0034e008ce7N.exe
"C:\Users\Admin\AppData\Local\Temp\46ab2d0bce6511cf67cf931113da14de84304a4e9a814dbb8a88d0034e008ce7N.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1808

C:\Users\Admin\AppData\Local\Temp\RarSFX0\infected.exe
"C:\Users\Admin\AppData\Local\Temp\RarSFX0\infected.exe"
2⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:2616

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=3804,i,3387628439405076340,17957358341235678872,262144 --variations-seed-version --mojo-platform-channel-handle=4220 /prefetch:8
1⤵
PID:2000

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\RarSFX0\infected.exe

Filesize
63KB

MD5
05c205f37fc4f74a18b1dfc2326d72d6

SHA1
fe97f65f70d8010f95df451982ff3d5224d50e5f

SHA256
1c5a59c37feeb40cc119740981bb6e083e3f58595f46a0e1f9c7b05cbdd35bf4

SHA512
c64ad3412b4cf50fec26277ffc5ce0ab6f6cfab77c8eafd72cc66fdcb0cb3f3b3e1c0a30ec6518e6cb1241953dda8e60be16390588b9e2d0bedea0433136d8cc

Download Submit
memory/2616-14-0x00007FFE69A23000-0x00007FFE69A25000-memory.dmp

Filesize
8KB

Download
memory/2616-15-0x00000000000C0000-0x00000000000D6000-memory.dmp

Filesize
88KB

Download
memory/2616-16-0x00007FFE69A20000-0x00007FFE6A4E1000-memory.dmp

Filesize
10.8MB

Download
memory/2616-17-0x00007FFE69A23000-0x00007FFE69A25000-memory.dmp

Filesize
8KB

Download
memory/2616-18-0x00007FFE69A20000-0x00007FFE6A4E1000-memory.dmp

Filesize
10.8MB

Download