asyncrat | 9b0ceae770fefa240406c89e24ad6468397db6c3105ea4bd800e433fd608cbd3

Analysis

max time kernel
150s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
01/07/2024, 14:38

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General

Target

anarchia.exe
Size

63KB
MD5

0b2ea56da9323d28eb13700901a3d821
SHA1

beac98a0e292050ce6fda1efdb550342861427dd
SHA256

9b0ceae770fefa240406c89e24ad6468397db6c3105ea4bd800e433fd608cbd3
SHA512

a26783b1ae66fa56a4162dc893ec5865e009e1cd94862edb2933099fd81e70883ef2aa4a6de5d876c73670df31abd899d3682a47fcc458b9995ea5d0e9b71ab8
SSDEEP

1536:xRRQOw8kwch5bUbWh9aiEABuEdpqKmY7:xA18k3bUbW6eGz

Score

10^/10

asyncrat default rat

Malware Config

Extracted

Family

asyncrat

Botnet

Default

185.254.97.15:2024

Attributes

delay
1
install
true
install_file
cwel.exe
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

resource	yara_rule
behavioral1/files/0x00070000000233f9-11.dat	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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3558294865-3673844354-2255444939-1000\Control Panel\International\Geo\Nation	anarchia.exe

Executes dropped EXE 1 IoCs

pid	Process
2512	cwel.exe

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

System Information Discovery
T1082

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
3952	timeout.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
3176	schtasks.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
1520	anarchia.exe
1520	anarchia.exe
1520	anarchia.exe
1520	anarchia.exe
1520	anarchia.exe
1520	anarchia.exe
1520	anarchia.exe
1520	anarchia.exe
1520	anarchia.exe
1520	anarchia.exe
1520	anarchia.exe
1520	anarchia.exe
1520	anarchia.exe
1520	anarchia.exe
1520	anarchia.exe
1520	anarchia.exe
1520	anarchia.exe
1520	anarchia.exe
1520	anarchia.exe
1520	anarchia.exe
1520	anarchia.exe
1520	anarchia.exe
1520	anarchia.exe
1520	anarchia.exe
1520	anarchia.exe
1520	anarchia.exe
1520	anarchia.exe
1520	anarchia.exe
1520	anarchia.exe
1520	anarchia.exe
1520	anarchia.exe
1520	anarchia.exe
1520	anarchia.exe
2512	cwel.exe
2512	cwel.exe
2512	cwel.exe
2512	cwel.exe
2512	cwel.exe
2512	cwel.exe
2512	cwel.exe
2512	cwel.exe
2512	cwel.exe
2512	cwel.exe
2512	cwel.exe
2512	cwel.exe
2512	cwel.exe
2512	cwel.exe
2512	cwel.exe
2512	cwel.exe
2512	cwel.exe
2512	cwel.exe
2512	cwel.exe
2512	cwel.exe
2512	cwel.exe
2512	cwel.exe
2512	cwel.exe
2512	cwel.exe
2512	cwel.exe
2512	cwel.exe
2512	cwel.exe
2512	cwel.exe
2512	cwel.exe
2512	cwel.exe
2512	cwel.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	1520	anarchia.exe
Token: SeDebugPrivilege	1520	anarchia.exe
Token: SeDebugPrivilege	2512	cwel.exe
Token: SeDebugPrivilege	2512	cwel.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 1520 wrote to memory of 1740	1520	anarchia.exe	82
PID 1520 wrote to memory of 1740	1520	anarchia.exe	82
PID 1520 wrote to memory of 1956	1520	anarchia.exe	84
PID 1520 wrote to memory of 1956	1520	anarchia.exe	84
PID 1740 wrote to memory of 3176	1740	cmd.exe	86
PID 1740 wrote to memory of 3176	1740	cmd.exe	86
PID 1956 wrote to memory of 3952	1956	cmd.exe	87
PID 1956 wrote to memory of 3952	1956	cmd.exe	87
PID 1956 wrote to memory of 2512	1956	cmd.exe	88
PID 1956 wrote to memory of 2512	1956	cmd.exe	88

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012

C:\Users\Admin\AppData\Local\Temp\anarchia.exe
"C:\Users\Admin\AppData\Local\Temp\anarchia.exe"
1⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1520
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "cwel" /tr '"C:\Users\Admin\AppData\Roaming\cwel.exe"' & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1740
- - C:\Windows\system32\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "cwel" /tr '"C:\Users\Admin\AppData\Roaming\cwel.exe"'
    3⤵
    - Scheduled Task/Job: Scheduled Task
    PID:3176
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp4EAC.tmp.bat""
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1956
- - C:\Windows\system32\timeout.exe
    timeout 3
    3⤵
    - Delays execution with timeout.exe
    PID:3952
- - C:\Users\Admin\AppData\Roaming\cwel.exe
    "C:\Users\Admin\AppData\Roaming\cwel.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2512

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp4EAC.tmp.bat

Filesize
148B

MD5
cf86a6abb05c30050fe2084d653694d0

SHA1
bc80a92eeee51f8945214d771330cd4b3018e22f

SHA256
b1eb1e750dcb5a20f93b32aecc6c00aca089484d47be06be936a08dcd9209306

SHA512
3731bb4b8490b25ab3359ece0683c7e6867bb99012ca27a8964b5a87765bfed6cdb59561c45f8c9eac249e6448e31817986c857a34c62f3f7520f9105ffd655f

Download Submit
C:\Users\Admin\AppData\Roaming\cwel.exe

Filesize
63KB

MD5
0b2ea56da9323d28eb13700901a3d821

SHA1
beac98a0e292050ce6fda1efdb550342861427dd

SHA256
9b0ceae770fefa240406c89e24ad6468397db6c3105ea4bd800e433fd608cbd3

SHA512
a26783b1ae66fa56a4162dc893ec5865e009e1cd94862edb2933099fd81e70883ef2aa4a6de5d876c73670df31abd899d3682a47fcc458b9995ea5d0e9b71ab8

Download Submit
memory/1520-0-0x0000000000F50000-0x0000000000F66000-memory.dmp

Filesize
88KB

Download
memory/1520-1-0x00007FF9181B3000-0x00007FF9181B5000-memory.dmp

Filesize
8KB

Download
memory/1520-2-0x00007FF9181B0000-0x00007FF918C71000-memory.dmp

Filesize
10.8MB

Download
memory/1520-7-0x00007FF9181B0000-0x00007FF918C71000-memory.dmp

Filesize
10.8MB

Download
memory/2512-14-0x000000001BCD0000-0x000000001BD46000-memory.dmp

Filesize
472KB

Download
memory/2512-15-0x000000001AFD0000-0x000000001B004000-memory.dmp

Filesize
208KB

Download
memory/2512-16-0x000000001BC50000-0x000000001BC6E000-memory.dmp

Filesize
120KB

Download
memory/2512-17-0x000000001BC80000-0x000000001BCB4000-memory.dmp

Filesize
208KB

Download