asyncrat | 4c15c32195da6c7705dd189b6108abe2b52c6c0eba67d842e574ba18ecf8a406

General

Target
4c15c32195da6c7705dd189b6108abe2b52c6c0eba67d842e574ba18ecf8a406.exe
Size 45KB
Sample260804-144dbs1frf
SHA256 4c15c32195da6c7705dd189b6108abe2b52c6c0eba67d842e574ba18ecf8a406
MD5 7531fdd43b35b9632ed16a5b52a2242c
SHA1 64f2c367deaae68d7bdb9efe85630d15179e230f
SHA512 2ee939446f530cb218640c967ccae60a9c21f0fb02fe5f67949ce34bf81f437abe153f1d21095d925578d8d29302997e76af0328413106ad29f1f00e994bff16
SSDEEP 768:suJdpTP3tcsWUODmqmo2qVbxGQG9PHuPIczjbZgw3ivzXAIYFGj9gBI3v+bjBDZm:suJdpTPdI2eHC3c3b2wS0PFGj9gBI/Oa
TLSH
T1ED233B003BE8812BF2BF4FB859F26145867AF2637603D64D2CC451D75613FC69A426ED
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

default command_and_control defense_evasion discovery execution asyncrat persistence rat

Malware Config

Extracted

Family

asyncrat

Version

0.5.8

Botnet

Default

C2

hentaihay.blog:80
hentaihay.blog:22
hentaihay.blog:8080
hentaihay.blog:8880
hentaihay.blog:2052
hentaihay.blog:2082
hentaihay.blog:2086
hentaihay.blog:2095
hentaihay.blog:443
hentaihay.blog:2053
hentaihay.blog:2083
hentaihay.blog:2087
hentaihay.blog:2096
hentaihay.blog:8443
www.hentaihay.blog:80
www.hentaihay.blog:22
www.hentaihay.blog:8080
www.hentaihay.blog:8880
www.hentaihay.blog:2052
www.hentaihay.blog:2082
www.hentaihay.blog:2086
www.hentaihay.blog:2095
www.hentaihay.blog:443
www.hentaihay.blog:2053
www.hentaihay.blog:2083
www.hentaihay.blog:2087
www.hentaihay.blog:2096
www.hentaihay.blog:8443
lokibot.hentaihay.blog:80
lokibot.hentaihay.blog:22
lokibot.hentaihay.blog:8080
lokibot.hentaihay.blog:8880
lokibot.hentaihay.blog:2052
lokibot.hentaihay.blog:2082
lokibot.hentaihay.blog:2086
lokibot.hentaihay.blog:2095
lokibot.hentaihay.blog:443
lokibot.hentaihay.blog:2053
lokibot.hentaihay.blog:2083
lokibot.hentaihay.blog:2087
lokibot.hentaihay.blog:2096
lokibot.hentaihay.blog:8443
gootloader.hentaihay.blog:80
gootloader.hentaihay.blog:22
gootloader.hentaihay.blog:8080
gootloader.hentaihay.blog:8880
gootloader.hentaihay.blog:2052
gootloader.hentaihay.blog:2082
gootloader.hentaihay.blog:2086
gootloader.hentaihay.blog:2095
gootloader.hentaihay.blog:443
gootloader.hentaihay.blog:2053
gootloader.hentaihay.blog:2083
gootloader.hentaihay.blog:2087
gootloader.hentaihay.blog:2096
gootloader.hentaihay.blog:8443

Mutex

2lCu3aqqIwrs

Attributes

delay
0
install
true
install_file
gchogozl.exe
install_folder
%AppData%

aes.plain

Signatures

Family: 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/0x000300000001e697-8.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-1-5-21-889581200-2041691093-2048517887-1000\Control Panel\International\Geo\Nation	4c15c32195da6c7705dd189b6108abe2b52c6c0eba67d842e574ba18ecf8a406.exe

Executes dropped EXE 2 IoCs

pid	Process
2364	gchogozl.exe
2780	gchogozl.exe

Outbound SSH connection to public host 2 TTPs 2 IoCs

SSH is used for remote access. This may indicate SSH host discovery, encrypted C2 traffic, or data exfiltration.

command_and_control

Protocol Tunneling

T1572

Network Service Discovery

T1046

description	flow	ioc	pid	Process
SSH destination	21	104.21.73.75:22	2364	gchogozl.exe
SSH destination	35	172.67.158.187:22	2364	gchogozl.exe

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

System Information Discovery
T1082

Executes a command shell one-liner 1 TTPs 2 IoCs

Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.

execution

Windows Command Shell

T1059.003

pid	Process
1124	cmd.exe
2328	cmd.exe

System Location Discovery: System Language Discovery 1 TTPs 7 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	gchogozl.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	gchogozl.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	4c15c32195da6c7705dd189b6108abe2b52c6c0eba67d842e574ba18ecf8a406.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	timeout.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe

Delays execution with timeout.exe 1 IoCs

defense_evasion

pid	Process
3700	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
4712	schtasks.exe

Suspicious behavior: EnumeratesProcesses 21 IoCs

pid	Process
5040	4c15c32195da6c7705dd189b6108abe2b52c6c0eba67d842e574ba18ecf8a406.exe
5040	4c15c32195da6c7705dd189b6108abe2b52c6c0eba67d842e574ba18ecf8a406.exe
5040	4c15c32195da6c7705dd189b6108abe2b52c6c0eba67d842e574ba18ecf8a406.exe
5040	4c15c32195da6c7705dd189b6108abe2b52c6c0eba67d842e574ba18ecf8a406.exe
5040	4c15c32195da6c7705dd189b6108abe2b52c6c0eba67d842e574ba18ecf8a406.exe
5040	4c15c32195da6c7705dd189b6108abe2b52c6c0eba67d842e574ba18ecf8a406.exe
5040	4c15c32195da6c7705dd189b6108abe2b52c6c0eba67d842e574ba18ecf8a406.exe
5040	4c15c32195da6c7705dd189b6108abe2b52c6c0eba67d842e574ba18ecf8a406.exe
5040	4c15c32195da6c7705dd189b6108abe2b52c6c0eba67d842e574ba18ecf8a406.exe
5040	4c15c32195da6c7705dd189b6108abe2b52c6c0eba67d842e574ba18ecf8a406.exe
5040	4c15c32195da6c7705dd189b6108abe2b52c6c0eba67d842e574ba18ecf8a406.exe
5040	4c15c32195da6c7705dd189b6108abe2b52c6c0eba67d842e574ba18ecf8a406.exe
5040	4c15c32195da6c7705dd189b6108abe2b52c6c0eba67d842e574ba18ecf8a406.exe
5040	4c15c32195da6c7705dd189b6108abe2b52c6c0eba67d842e574ba18ecf8a406.exe
5040	4c15c32195da6c7705dd189b6108abe2b52c6c0eba67d842e574ba18ecf8a406.exe
5040	4c15c32195da6c7705dd189b6108abe2b52c6c0eba67d842e574ba18ecf8a406.exe
5040	4c15c32195da6c7705dd189b6108abe2b52c6c0eba67d842e574ba18ecf8a406.exe
5040	4c15c32195da6c7705dd189b6108abe2b52c6c0eba67d842e574ba18ecf8a406.exe
5040	4c15c32195da6c7705dd189b6108abe2b52c6c0eba67d842e574ba18ecf8a406.exe
5040	4c15c32195da6c7705dd189b6108abe2b52c6c0eba67d842e574ba18ecf8a406.exe
5040	4c15c32195da6c7705dd189b6108abe2b52c6c0eba67d842e574ba18ecf8a406.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	5040	4c15c32195da6c7705dd189b6108abe2b52c6c0eba67d842e574ba18ecf8a406.exe
Token: SeDebugPrivilege	2364	gchogozl.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 5040 wrote to memory of 1124	5040	4c15c32195da6c7705dd189b6108abe2b52c6c0eba67d842e574ba18ecf8a406.exe	86
PID 5040 wrote to memory of 2328	5040	4c15c32195da6c7705dd189b6108abe2b52c6c0eba67d842e574ba18ecf8a406.exe	88
PID 2328 wrote to memory of 3700	2328	cmd.exe	91
PID 1124 wrote to memory of 4712	1124	cmd.exe	92
PID 2328 wrote to memory of 2780	2328	cmd.exe	97

C:\Users\Admin\AppData\Local\Temp\4c15c32195da6c7705dd189b6108abe2b52c6c0eba67d842e574ba18ecf8a406.exe
"C:\Users\Admin\AppData\Local\Temp\4c15c32195da6c7705dd189b6108abe2b52c6c0eba67d842e574ba18ecf8a406.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:5040
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "gchogozl" /tr '"C:\Users\Admin\AppData\Roaming\gchogozl.exe"' & exit
  2⤵
  - Executes a command shell one-liner
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1124
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "gchogozl" /tr '"C:\Users\Admin\AppData\Roaming\gchogozl.exe"'
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:4712
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp7AE8.tmp.bat""
  2⤵
  - Executes a command shell one-liner
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2328
- - C:\Windows\SysWOW64\timeout.exe
    timeout 3
    3⤵
    - System Location Discovery: System Language Discovery
    - Delays execution with timeout.exe
    PID:3700
- - C:\Users\Admin\AppData\Roaming\gchogozl.exe
    "C:\Users\Admin\AppData\Roaming\gchogozl.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:2780

C:\Users\Admin\AppData\Roaming\gchogozl.exe
"C:\Users\Admin\AppData\Roaming\gchogozl.exe"
1⤵
- Executes dropped EXE
- Outbound SSH connection to public host
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:2364

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

Windows Command Shell

1

T1059.003

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

Network Service Discovery

Query Registry

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Protocol Tunneling

1

T1572

Exfiltration

Impact

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Downloads

tmp7AE8.tmp.bat

Path C:\Users\Admin\AppData\Local\Temp\tmp7AE8.tmp.bat
Size 152B
SHA256 1acae0557824daa8c37ce0234dc78cfe42dd3a89c2bfc936c6b1f4638290a4cc
MD5 fb10d9f6e78e1a029490dfa202174f33
SHA1 b3c9cb2754d5a98307cd3a911e49708ea7a71459
SHA512 c1db4cb01af2e7b864d29b0b87b74004addc781438ce9d112cb1120e18af272b9c619e17ff785ba6dc0c101882257832588f11aa3f9f32f54faeca9f7a72a9b7
TLSH
T19AC02B4262C5EB5E2905286312FFE8CEA5736C1A3F41FF10C305801D138048CF4DA345
MD5 SHA1 SHA512 TLSH

Submit Download

gchogozl.exe

Path C:\Users\Admin\AppData\Roaming\gchogozl.exe
Size 45KB
SHA256 4c15c32195da6c7705dd189b6108abe2b52c6c0eba67d842e574ba18ecf8a406
MD5 7531fdd43b35b9632ed16a5b52a2242c
SHA1 64f2c367deaae68d7bdb9efe85630d15179e230f
SHA512 2ee939446f530cb218640c967ccae60a9c21f0fb02fe5f67949ce34bf81f437abe153f1d21095d925578d8d29302997e76af0328413106ad29f1f00e994bff16
SSDEEP 768:suJdpTP3tcsWUODmqmo2qVbxGQG9PHuPIczjbZgw3ivzXAIYFGj9gBI3v+bjBDZm:suJdpTPdI2eHC3c3b2wS0PFGj9gBI/Oa
TLSH
T1ED233B003BE8812BF2BF4FB859F26145867AF2637603D64D2CC451D75613FC69A426ED
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/2364-10-0x0000000004B80000-0x0000000004B90000-memory.dmp

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memory/2364-13-0x0000000004B80000-0x0000000004B90000-memory.dmp

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memory/5040-0-0x00000000002F0000-0x0000000000302000-memory.dmp

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memory/5040-1-0x0000000004C00000-0x0000000004C10000-memory.dmp

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memory/5040-2-0x0000000004CC0000-0x0000000004D5C000-memory.dmp

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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