b9977f9e501ff7e873b5b5809296b8f98ee56d07e7bb87f61d6dbc5f3746a5f9

Analysis

max time kernel
140s
max time network
17s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
06-09-2024 19:44

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General

Target

dmaster.exe
Size

9.1MB
MD5

55f2155a18103b1ad0906b8b41a0564d
SHA1

3c09f8b510e61eae350f8117e0561030d714948c
SHA256

b9977f9e501ff7e873b5b5809296b8f98ee56d07e7bb87f61d6dbc5f3746a5f9
SHA512

4719275f747043aca12839e2e126e6191e8c507bfb5b17cf0e25ee9808616c7bf74dec976477bb9a11bb2ff0ee4ecb3a37b7cd8a0f3bf00c870f4c297622a817
SSDEEP

196608:+U8XVbMEH2WW6a242wBAb4nKf2e47OpwcjSIDcLi0vzoCuuyqFP6opP9STaa47cE:7yMEH2p61wNnzwrOiAoCuuyqR6K9S+aA

Score

7^/10

discovery

Malware Config

Signatures

Executes dropped EXE 1 IoCs

Processes:

dmaster.tmp

pid process

2952 dmaster.tmp
Loads dropped DLL 1 IoCs

Processes:

dmaster.exe

pid process

2580 dmaster.exe

pid	process
2952	dmaster.tmp

pid	process
2580	dmaster.exe

System Location Discovery: System Language Discovery 1 TTPs 2 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

Processes:

dmaster.exedmaster.tmp

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	dmaster.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	dmaster.tmp

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

dmaster.tmp

pid process

2952 dmaster.tmp

pid	process
2952	dmaster.tmp

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

dmaster.exe

description	pid	process	target process
PID 2580 wrote to memory of 2952	2580	dmaster.exe	dmaster.tmp
PID 2580 wrote to memory of 2952	2580	dmaster.exe	dmaster.tmp
PID 2580 wrote to memory of 2952	2580	dmaster.exe	dmaster.tmp
PID 2580 wrote to memory of 2952	2580	dmaster.exe	dmaster.tmp
PID 2580 wrote to memory of 2952	2580	dmaster.exe	dmaster.tmp
PID 2580 wrote to memory of 2952	2580	dmaster.exe	dmaster.tmp
PID 2580 wrote to memory of 2952	2580	dmaster.exe	dmaster.tmp

C:\Users\Admin\AppData\Local\Temp\dmaster.exe
"C:\Users\Admin\AppData\Local\Temp\dmaster.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2580

C:\Users\Admin\AppData\Local\Temp\is-DUE2G.tmp\dmaster.tmp
"C:\Users\Admin\AppData\Local\Temp\is-DUE2G.tmp\dmaster.tmp" /SL5="$4014C,8636448,832512,C:\Users\Admin\AppData\Local\Temp\dmaster.exe"
2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious behavior: GetForegroundWindowSpam
PID:2952

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

\Users\Admin\AppData\Local\Temp\is-DUE2G.tmp\dmaster.tmp
Filesize
3.1MB

MD5
c7364c74062ab62a663a623c83a7b677

SHA1
138ea2ab69bbead71fd881b645f329c07181c8a6

SHA256
fc3ca471b8be530e91c6b305d1a68a7c3479ffd5993d239f8f6b6cfeab5456a1

SHA512
0cfdef24723ecaee209c55afa4cca31f5192be25323b79471dd11fa9fac8d901c53e64641ac5a0187e6fbbd282d0d9af6a3d61df747765cb6846fcebde7a0665

Download Submit
memory/2580-0-0x0000000000400000-0x00000000004D8000-memory.dmp

Filesize
864KB

Download
memory/2580-2-0x0000000000401000-0x00000000004B7000-memory.dmp

Filesize
728KB

Download
memory/2580-10-0x0000000000400000-0x00000000004D8000-memory.dmp

Filesize
864KB

Download
memory/2952-8-0x0000000000400000-0x000000000071C000-memory.dmp

Filesize
3.1MB

Download
memory/2952-12-0x0000000000400000-0x000000000071C000-memory.dmp

Filesize
3.1MB

Download