asyncrat | bab521830c4069c60079884232777609ad392d385f323981eefb2c949a55d41b

General

Target

MulitiTool.exe
Size

63KB
MD5

867d3df9508a810a4b6498db145508ce
SHA1

f7321cd91e4de91b7da39d5a2d25f126a77f6eb0
SHA256

bab521830c4069c60079884232777609ad392d385f323981eefb2c949a55d41b
SHA512

06e039153a01549534b62efb8e9a4d0bc57bc22b050a9822edf5cf42d2c77400657f73fd4ea4a9632e0cbb62d638e9983adaecd180d9d9835093c2874ad51712
SSDEEP

1536:HeQPcppS/QdATajykrW+UYUbZ39jLayBuIdpqKmY7:HeDqomYUbZZ1Gz

Score

10^/10

asyncrat default rat

Malware Config

Extracted

Family

asyncrat

Botnet

Default

C2

comment-mar.gl.at.ply.gg:7052

Attributes

delay
1
install
true
install_file
regedit.exe
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/0x0008000000023c99-11.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

Processes:

MulitiTool.exe

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Control Panel\International\Geo\Nation	MulitiTool.exe

Executes dropped EXE 1 IoCs

Processes:

regedit.exe

pid	Process
3504	regedit.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

Processes:

timeout.exe

pid	Process
664	timeout.exe

Runs regedit.exe 1 IoCs

Processes:

regedit.exe

pid	Process
3504	regedit.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

Processes:

schtasks.exe

pid	Process
2192	schtasks.exe

Suspicious behavior: EnumeratesProcesses 35 IoCs

Processes:

MulitiTool.exeregedit.exe

pid	Process
1860	MulitiTool.exe
1860	MulitiTool.exe
1860	MulitiTool.exe
1860	MulitiTool.exe
1860	MulitiTool.exe
1860	MulitiTool.exe
1860	MulitiTool.exe
1860	MulitiTool.exe
1860	MulitiTool.exe
1860	MulitiTool.exe
1860	MulitiTool.exe
1860	MulitiTool.exe
1860	MulitiTool.exe
1860	MulitiTool.exe
1860	MulitiTool.exe
1860	MulitiTool.exe
1860	MulitiTool.exe
1860	MulitiTool.exe
1860	MulitiTool.exe
1860	MulitiTool.exe
1860	MulitiTool.exe
1860	MulitiTool.exe
1860	MulitiTool.exe
1860	MulitiTool.exe
1860	MulitiTool.exe
1860	MulitiTool.exe
1860	MulitiTool.exe
1860	MulitiTool.exe
1860	MulitiTool.exe
1860	MulitiTool.exe
1860	MulitiTool.exe
1860	MulitiTool.exe
1860	MulitiTool.exe
3504	regedit.exe
3504	regedit.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

MulitiTool.exeregedit.exe

description	pid	Process
Token: SeDebugPrivilege	1860	MulitiTool.exe
Token: SeDebugPrivilege	3504	regedit.exe

Suspicious use of WriteProcessMemory 10 IoCs

Processes:

MulitiTool.execmd.execmd.exe

description	pid	Process	procid_target
PID 1860 wrote to memory of 1592	1860	MulitiTool.exe	83
PID 1860 wrote to memory of 1592	1860	MulitiTool.exe	83
PID 1860 wrote to memory of 3116	1860	MulitiTool.exe	85
PID 1860 wrote to memory of 3116	1860	MulitiTool.exe	85
PID 1592 wrote to memory of 2192	1592	cmd.exe	87
PID 1592 wrote to memory of 2192	1592	cmd.exe	87
PID 3116 wrote to memory of 664	3116	cmd.exe	88
PID 3116 wrote to memory of 664	3116	cmd.exe	88
PID 3116 wrote to memory of 3504	3116	cmd.exe	97
PID 3116 wrote to memory of 3504	3116	cmd.exe	97

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\MulitiTool.exe
"C:\Users\Admin\AppData\Local\Temp\MulitiTool.exe"
1⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1860
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "regedit" /tr '"C:\Users\Admin\AppData\Roaming\regedit.exe"' & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1592
- - C:\Windows\system32\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "regedit" /tr '"C:\Users\Admin\AppData\Roaming\regedit.exe"'
    3⤵
    - Scheduled Task/Job: Scheduled Task
    PID:2192
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmpA400.tmp.bat""
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3116
- - C:\Windows\system32\timeout.exe
    timeout 3
    3⤵
    - Delays execution with timeout.exe
    PID:664
- - C:\Users\Admin\AppData\Roaming\regedit.exe
    "C:\Users\Admin\AppData\Roaming\regedit.exe"
    3⤵
    - Executes dropped EXE
    - Runs regedit.exe
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:3504

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmpA400.tmp.bat

Filesize
151B

MD5
d1b5f58e54171c9445ec0cdb5597cec8

SHA1
ce4e92876f4900b26db35397377e8cc17b441bcd

SHA256
cdfafb4edf54a457f7406b0bdc670d1924ecaca59f150c7f10e730cf997a7cbe

SHA512
879a3e9791690570e651d6ab4ebb8ce0b7d826b66ea36a73a8de980b9317a5663a436e7cd0964012dfd82c1d12fc39eab609bed5703fa37a08e1f02101d19950

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

Filesize
63KB

MD5
867d3df9508a810a4b6498db145508ce

SHA1
f7321cd91e4de91b7da39d5a2d25f126a77f6eb0

SHA256
bab521830c4069c60079884232777609ad392d385f323981eefb2c949a55d41b

SHA512
06e039153a01549534b62efb8e9a4d0bc57bc22b050a9822edf5cf42d2c77400657f73fd4ea4a9632e0cbb62d638e9983adaecd180d9d9835093c2874ad51712

Download Submit
memory/1860-0-0x00007FFBB54C3000-0x00007FFBB54C5000-memory.dmp

Filesize
8KB

Download
memory/1860-1-0x0000000000430000-0x0000000000446000-memory.dmp

Filesize
88KB

Download
memory/1860-2-0x00007FFBB54C0000-0x00007FFBB5F81000-memory.dmp

Filesize
10.8MB

Download
memory/1860-7-0x00007FFBB54C0000-0x00007FFBB5F81000-memory.dmp

Filesize
10.8MB

Download
memory/1860-8-0x00007FFBB54C0000-0x00007FFBB5F81000-memory.dmp

Filesize
10.8MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads