f07ce85bd9b3c10c104cce02f671e5ed8791ad5a356c5aff0bcf566818579877

Analysis

max time kernel
94s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
07/09/2024, 15:21

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General

Target

9Lb6~w1/1905Client.exe
Size

2.3MB
MD5

385cffc081a9a27fca690306981db564
SHA1

eb4c6e5caadc8acb467203ee0fc0d2215b8ac9e8
SHA256

5c5187f6b470d75114bdce4a681b339ed8af77f254d11702576c1c350dc67753
SHA512

785dc0a6838cde0bf464edc619b1959cc8bc691c931dec2eecb75c42b149efdf280bbf602cfd83da1df4dc82098cb912cc7618efc6d7f8fb9a7aa37552cc6a41
SSDEEP

49152:DegP6/jA7MNLYcVzknTiSvqAMBZKwz4MvlTeoTxIIqPRDlpZNJgMOwUxivP9Xcg4:DeQ7MNLjVcThqAMBZKwz4MvlTeblPRDk

Score

6^/10

discovery

Malware Config

Signatures

Enumerates connected drives 3 TTPs 22 IoCs

Attempts to read the root path of hard drives other than the default C: drive.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
File opened (read-only)	\??\L:	1905Client.exe
File opened (read-only)	\??\T:	1905Client.exe
File opened (read-only)	\??\Z:	1905Client.exe
File opened (read-only)	\??\X:	1905Client.exe
File opened (read-only)	\??\B:	1905Client.exe
File opened (read-only)	\??\E:	1905Client.exe
File opened (read-only)	\??\M:	1905Client.exe
File opened (read-only)	\??\N:	1905Client.exe
File opened (read-only)	\??\R:	1905Client.exe
File opened (read-only)	\??\S:	1905Client.exe
File opened (read-only)	\??\U:	1905Client.exe
File opened (read-only)	\??\G:	1905Client.exe
File opened (read-only)	\??\O:	1905Client.exe
File opened (read-only)	\??\Y:	1905Client.exe
File opened (read-only)	\??\W:	1905Client.exe
File opened (read-only)	\??\H:	1905Client.exe
File opened (read-only)	\??\I:	1905Client.exe
File opened (read-only)	\??\J:	1905Client.exe
File opened (read-only)	\??\K:	1905Client.exe
File opened (read-only)	\??\P:	1905Client.exe
File opened (read-only)	\??\Q:	1905Client.exe
File opened (read-only)	\??\V:	1905Client.exe

System Location Discovery: System Language Discovery 1 TTPs 3 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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ipconfig.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	1905Client.exe

Checks processor information in registry 2 TTPs 2 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	1905Client.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	1905Client.exe

Gathers network information 2 TTPs 1 IoCs

Uses commandline utility to view network configuration.

System Information Discovery

T1082

Command and Scripting Interpreter

T1059

pid	Process
2588	ipconfig.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4328	1905Client.exe
4328	1905Client.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4328	1905Client.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4328 wrote to memory of 452	4328	1905Client.exe	85
PID 4328 wrote to memory of 452	4328	1905Client.exe	85
PID 4328 wrote to memory of 452	4328	1905Client.exe	85
PID 452 wrote to memory of 2588	452	cmd.exe	87
PID 452 wrote to memory of 2588	452	cmd.exe	87
PID 452 wrote to memory of 2588	452	cmd.exe	87

C:\Users\Admin\AppData\Local\Temp\9Lb6~w1\1905Client.exe
"C:\Users\Admin\AppData\Local\Temp\9Lb6~w1\1905Client.exe"
1⤵
- Enumerates connected drives
- System Location Discovery: System Language Discovery
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4328
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ipconfig /all
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:452
- - C:\Windows\SysWOW64\ipconfig.exe
    ipconfig /all
    3⤵
    - System Location Discovery: System Language Discovery
    - Gathers network information
    PID:2588

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/4328-1-0x0000000003110000-0x0000000003179000-memory.dmp

Filesize
420KB

Download
memory/4328-2-0x0000000003110000-0x0000000003179000-memory.dmp

Filesize
420KB

Download
memory/4328-0-0x0000000003110000-0x0000000003179000-memory.dmp

Filesize
420KB

Download
memory/4328-3-0x0000000003110000-0x0000000003179000-memory.dmp

Filesize
420KB

Download
memory/4328-11-0x0000000003110000-0x0000000003179000-memory.dmp

Filesize
420KB

Download
memory/4328-13-0x0000000003110000-0x0000000003179000-memory.dmp

Filesize
420KB

Download
memory/4328-12-0x0000000003110000-0x0000000003179000-memory.dmp

Filesize
420KB

Download
memory/4328-14-0x0000000003110000-0x0000000003179000-memory.dmp

Filesize
420KB

Download
memory/4328-15-0x0000000003110000-0x0000000003179000-memory.dmp

Filesize
420KB

Download
memory/4328-18-0x0000000003110000-0x0000000003179000-memory.dmp

Filesize
420KB

Download