asyncrat | b01f8abc812a17b3fe0a6dd06b9dfc2f99a153dad1a8e3e325fab7f95bf78cde

General

Target

b01f8abc812a17b3fe0a6dd06b9dfc2f99a153dad1a8e3e325fab7f95bf78cde.exe
Size

74KB
MD5

6c9944b8a88b29b1b09f66f7e0b246a0
SHA1

d3a0a1dd2908321d2086b236d4a8411f11e6e574
SHA256

b01f8abc812a17b3fe0a6dd06b9dfc2f99a153dad1a8e3e325fab7f95bf78cde
SHA512

1d129611ec5000a841a462305649afdd6a9ea1c4ccfe790cdde2a1244c5994e349f1ad01ead0f5db4521c98efd8c0b65f16cf9459b9bb57586c227f276a34b56
SSDEEP

1536:9UHNwcxKHXwzCtmPMV2e9VdQuDI6H1bf/l8wIKQzca7VclN:9UHicxK8WmPMV2e9VdQsH1bfN8eQrxY

Score

10^/10

asyncrat default discovery rat

Malware Config

Extracted

Family

asyncrat

Botnet

Default

Mutex

fkmfvhqhbwrdv

Attributes

delay
1
install
true
install_file
111222.exe
install_folder
%AppData%
pastebin_config
https://pastebin.com/raw/LwwcrLg4

aes.plain

Signatures

AsyncRat
AsyncRAT is designed to remotely monitor and control other computers written in C#.
rat asyncrat

VenomRAT 3 IoCs

Detects VenomRAT.

rat

resource	yara_rule
behavioral1/memory/2516-1-0x0000000000BB0000-0x0000000000BC8000-memory.dmp	VenomRAT
behavioral1/files/0x0008000000017487-15.dat	VenomRAT
behavioral1/memory/2844-18-0x0000000001240000-0x0000000001258000-memory.dmp	VenomRAT

Async RAT payload 1 IoCs

rat

resource	yara_rule
behavioral1/files/0x0008000000017487-15.dat	family_asyncrat

Executes dropped EXE 1 IoCs

pid	Process
2844	111222.exe

Loads dropped DLL 1 IoCs

pid	Process
2916	cmd.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs

Web Service

T1102

flow	ioc
4	pastebin.com
5	pastebin.com

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 6 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	111222.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	b01f8abc812a17b3fe0a6dd06b9dfc2f99a153dad1a8e3e325fab7f95bf78cde.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	timeout.exe

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
2700	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
2300	schtasks.exe

Suspicious behavior: EnumeratesProcesses 39 IoCs

pid	Process
2516	b01f8abc812a17b3fe0a6dd06b9dfc2f99a153dad1a8e3e325fab7f95bf78cde.exe
2516	b01f8abc812a17b3fe0a6dd06b9dfc2f99a153dad1a8e3e325fab7f95bf78cde.exe
2516	b01f8abc812a17b3fe0a6dd06b9dfc2f99a153dad1a8e3e325fab7f95bf78cde.exe
2844	111222.exe
2844	111222.exe
2844	111222.exe
2844	111222.exe
2844	111222.exe
2844	111222.exe
2844	111222.exe
2844	111222.exe
2844	111222.exe
2844	111222.exe
2844	111222.exe
2844	111222.exe
2844	111222.exe
2844	111222.exe
2844	111222.exe
2844	111222.exe
2844	111222.exe
2844	111222.exe
2844	111222.exe
2844	111222.exe
2844	111222.exe
2844	111222.exe
2844	111222.exe
2844	111222.exe
2844	111222.exe
2844	111222.exe
2844	111222.exe
2844	111222.exe
2844	111222.exe
2844	111222.exe
2844	111222.exe
2844	111222.exe
2844	111222.exe
2844	111222.exe
2844	111222.exe
2844	111222.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2516	b01f8abc812a17b3fe0a6dd06b9dfc2f99a153dad1a8e3e325fab7f95bf78cde.exe
Token: SeDebugPrivilege	2844	111222.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2844	111222.exe

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 2516 wrote to memory of 2968	2516	b01f8abc812a17b3fe0a6dd06b9dfc2f99a153dad1a8e3e325fab7f95bf78cde.exe	30
PID 2516 wrote to memory of 2968	2516	b01f8abc812a17b3fe0a6dd06b9dfc2f99a153dad1a8e3e325fab7f95bf78cde.exe	30
PID 2516 wrote to memory of 2968	2516	b01f8abc812a17b3fe0a6dd06b9dfc2f99a153dad1a8e3e325fab7f95bf78cde.exe	30
PID 2516 wrote to memory of 2968	2516	b01f8abc812a17b3fe0a6dd06b9dfc2f99a153dad1a8e3e325fab7f95bf78cde.exe	30
PID 2516 wrote to memory of 2916	2516	b01f8abc812a17b3fe0a6dd06b9dfc2f99a153dad1a8e3e325fab7f95bf78cde.exe	32
PID 2516 wrote to memory of 2916	2516	b01f8abc812a17b3fe0a6dd06b9dfc2f99a153dad1a8e3e325fab7f95bf78cde.exe	32
PID 2516 wrote to memory of 2916	2516	b01f8abc812a17b3fe0a6dd06b9dfc2f99a153dad1a8e3e325fab7f95bf78cde.exe	32
PID 2516 wrote to memory of 2916	2516	b01f8abc812a17b3fe0a6dd06b9dfc2f99a153dad1a8e3e325fab7f95bf78cde.exe	32
PID 2968 wrote to memory of 2300	2968	cmd.exe	34
PID 2968 wrote to memory of 2300	2968	cmd.exe	34
PID 2968 wrote to memory of 2300	2968	cmd.exe	34
PID 2968 wrote to memory of 2300	2968	cmd.exe	34
PID 2916 wrote to memory of 2700	2916	cmd.exe	35
PID 2916 wrote to memory of 2700	2916	cmd.exe	35
PID 2916 wrote to memory of 2700	2916	cmd.exe	35
PID 2916 wrote to memory of 2700	2916	cmd.exe	35
PID 2916 wrote to memory of 2844	2916	cmd.exe	36
PID 2916 wrote to memory of 2844	2916	cmd.exe	36
PID 2916 wrote to memory of 2844	2916	cmd.exe	36
PID 2916 wrote to memory of 2844	2916	cmd.exe	36

C:\Users\Admin\AppData\Local\Temp\b01f8abc812a17b3fe0a6dd06b9dfc2f99a153dad1a8e3e325fab7f95bf78cde.exe
"C:\Users\Admin\AppData\Local\Temp\b01f8abc812a17b3fe0a6dd06b9dfc2f99a153dad1a8e3e325fab7f95bf78cde.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2516
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "111222" /tr '"C:\Users\Admin\AppData\Roaming\111222.exe"' & exit
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2968
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "111222" /tr '"C:\Users\Admin\AppData\Roaming\111222.exe"'
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:2300
- C:\Windows\SysWOW64\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmpB79C.tmp.bat""
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2916
- - C:\Windows\SysWOW64\timeout.exe
    timeout 3
    3⤵
    - System Location Discovery: System Language Discovery
    - Delays execution with timeout.exe
    PID:2700
- - C:\Users\Admin\AppData\Roaming\111222.exe
    "C:\Users\Admin\AppData\Roaming\111222.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of SetWindowsHookEx
    PID:2844

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

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Web Service

1

T1102

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmpB79C.tmp.bat

Filesize
150B

MD5
a2a3fb128a72a8d86fe80653760e8ed9

SHA1
93a56f280dace0490a2412e2ab9bb88331a196b3

SHA256
0d6cdd3e0d95c33297f7ad4df1aeb86557986d22f0a7c6271dd44d7ed6dcb4de

SHA512
ed2cd861b23035b95587a2fedcb5fb5fad0b9316d377f764eec7bd2fb92633c0092d78176697c99ca2bea5b09604347f1a1cedb0e6c2df66d2ecb2bd46e568e1

Download Submit
C:\Users\Admin\AppData\Roaming\MyData\DataLogs.conf

Filesize
8B

MD5
cf759e4c5f14fe3eec41b87ed756cea8

SHA1
c27c796bb3c2fac929359563676f4ba1ffada1f5

SHA256
c9f9f193409217f73cc976ad078c6f8bf65d3aabcf5fad3e5a47536d47aa6761

SHA512
c7f832aee13a5eb36d145f35d4464374a9e12fa2017f3c2257442d67483b35a55eccae7f7729243350125b37033e075efbc2303839fd86b81b9b4dca3626953b

Download Submit
\Users\Admin\AppData\Roaming\111222.exe

Filesize
74KB

MD5
6c9944b8a88b29b1b09f66f7e0b246a0

SHA1
d3a0a1dd2908321d2086b236d4a8411f11e6e574

SHA256
b01f8abc812a17b3fe0a6dd06b9dfc2f99a153dad1a8e3e325fab7f95bf78cde

SHA512
1d129611ec5000a841a462305649afdd6a9ea1c4ccfe790cdde2a1244c5994e349f1ad01ead0f5db4521c98efd8c0b65f16cf9459b9bb57586c227f276a34b56

Download Submit
memory/2516-0-0x000000007428E000-0x000000007428F000-memory.dmp

Filesize
4KB

Download
memory/2516-1-0x0000000000BB0000-0x0000000000BC8000-memory.dmp

Filesize
96KB

Download
memory/2516-3-0x0000000074280000-0x000000007496E000-memory.dmp

Filesize
6.9MB

Download
memory/2516-4-0x0000000074280000-0x000000007496E000-memory.dmp

Filesize
6.9MB

Download
memory/2516-13-0x0000000074280000-0x000000007496E000-memory.dmp

Filesize
6.9MB

Download
memory/2844-18-0x0000000001240000-0x0000000001258000-memory.dmp

Filesize
96KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads