d720e1f34de54fcee5176bc5cdd54c5d69540c8e842116aaad27da19971334d2

Analysis

max time kernel
110s
max time network
95s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
06/08/2024, 01:00

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General

Target

34896f2dfa27be228468789e1ee0f840N.exe
Size

145KB
MD5

34896f2dfa27be228468789e1ee0f840
SHA1

8c63366603c3fc4eb6a3f3cf4e6e9b51fe469088
SHA256

d720e1f34de54fcee5176bc5cdd54c5d69540c8e842116aaad27da19971334d2
SHA512

78490651bac4c1695b9f09a97b90e131dcc184c29f16b38a9f4933cd228434f3a8c947391ba9155bccfa9458ad1f32ef2e8122400d348d8e962cdace9193c31b
SSDEEP

3072:Rc2YlPYqPt7EYjQ9oDJG7TYPqhefZSw+WwKugfp4d2F:qf5Pt7VWUPqhNPgfpI2F

Score

7^/10

discovery upx

Malware Config

Signatures

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-1-5-21-523280732-2327480845-3730041215-1000\Control Panel\International\Geo\Nation	34896f2dfa27be228468789e1ee0f840N.exe

Executes dropped EXE 1 IoCs

pid	Process
4780	MWL_DecryptFile.exe

UPX packed file 5 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/3928-0-0x0000000000400000-0x0000000000412000-memory.dmp	upx
behavioral2/files/0x00090000000233b2-6.dat	upx
behavioral2/memory/4780-12-0x0000000000400000-0x0000000000422000-memory.dmp	upx
behavioral2/memory/3928-15-0x0000000000400000-0x0000000000412000-memory.dmp	upx
behavioral2/memory/4780-16-0x0000000000400000-0x0000000000422000-memory.dmp	upx

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 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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	34896f2dfa27be228468789e1ee0f840N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	MWL_DecryptFile.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4780	MWL_DecryptFile.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
4780	MWL_DecryptFile.exe
4780	MWL_DecryptFile.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3928 wrote to memory of 4780	3928	34896f2dfa27be228468789e1ee0f840N.exe	83
PID 3928 wrote to memory of 4780	3928	34896f2dfa27be228468789e1ee0f840N.exe	83
PID 3928 wrote to memory of 4780	3928	34896f2dfa27be228468789e1ee0f840N.exe	83

C:\Users\Admin\AppData\Local\Temp\34896f2dfa27be228468789e1ee0f840N.exe
"C:\Users\Admin\AppData\Local\Temp\34896f2dfa27be228468789e1ee0f840N.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3928
- C:\Users\Admin\AppData\Local\Temp\MWL_DecryptFile.exe
  "C:\Users\Admin\AppData\Local\Temp\MWL_DecryptFile.exe" "C:\Users\Admin\AppData\Local\Temp\34896f2dfa27be228468789e1ee0f840N.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SetWindowsHookEx
  PID:4780

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

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

C:\Users\Admin\AppData\Local\Temp\MWL_DecryptFile.exe

Filesize
52KB

MD5
f870f701ef885f2ffe92eb9766d8df10

SHA1
5ef9d0b3eb778b5fdfe6a30994e1e60f2fd3d612

SHA256
903122b7607aaea06fd0d6208f707b75f4d5af8283c412aa2d48c2d3cfd4f291

SHA512
3e9d8e38af55505b1a50aeba1bb551bacd4e717fef1323fe8abc17273e40e92acf2789550719e7d72a1bc3cf1cfdf9dc5c2ba278eca4139225340fc25a65c4d7

Download Submit
memory/3928-0-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/3928-15-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/4780-12-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/4780-16-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download