cd4f6b784e998bb2d3a466a4c5c851338d640ac3fe12e2dac5bcffd23cae665d

Analysis

max time kernel
183s
max time network
192s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
30-12-2023 08:01

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

12e2e3896b34c59c90b436e3245d80ff.exe
Size

42KB
MD5

12e2e3896b34c59c90b436e3245d80ff
SHA1

764b2be5323ef6f66cf2614d4a6f50a2f0a85691
SHA256

cd4f6b784e998bb2d3a466a4c5c851338d640ac3fe12e2dac5bcffd23cae665d
SHA512

e85c69ebd8b00e717e46aa66cc5a24bb0e0a21df05414e44b4abc054dbc8e0df769541afb80a5b05ef59a7745e672b90bcfe329fdcb99b7e6b946f3a84458dce
SSDEEP

768:cHwPmlu0S9A/e8xCJr3SEr8xo1pKDElDhIUfWK2LKZ2NxCXCJGD34SXeeP:c6mIh9AW8xCoQ8xMYDElDai2NYyehtP

Score

7^/10

persistence

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-1-5-21-635608581-3370340891-292606865-1000\Control Panel\International\Geo\Nation	12e2e3896b34c59c90b436e3245d80ff.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-635608581-3370340891-292606865-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\braviax = "C:\\Windows\\system32\\braviax.exe"	12e2e3896b34c59c90b436e3245d80ff.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\braviax = "C:\\Windows\\system32\\braviax.exe"	12e2e3896b34c59c90b436e3245d80ff.exe

Drops file in System32 directory 1 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\braviax.exe	12e2e3896b34c59c90b436e3245d80ff.exe

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

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4520 wrote to memory of 4640	4520	12e2e3896b34c59c90b436e3245d80ff.exe	93
PID 4520 wrote to memory of 4640	4520	12e2e3896b34c59c90b436e3245d80ff.exe	93
PID 4520 wrote to memory of 4640	4520	12e2e3896b34c59c90b436e3245d80ff.exe	93

C:\Users\Admin\AppData\Local\Temp\12e2e3896b34c59c90b436e3245d80ff.exe
"C:\Users\Admin\AppData\Local\Temp\12e2e3896b34c59c90b436e3245d80ff.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- Drops file in System32 directory
- Suspicious use of WriteProcessMemory
PID:4520
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\delself.bat" "
  2⤵
  PID:4640

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\delself.bat

Filesize
202B

MD5
39e9bd150ce80160d178ae6ee5aac680

SHA1
e51c0724091f24345f9d75978650a29b1b00937f

SHA256
77bb0f64c0247ce67a358bbe851bbc8d0f371a286d04240b6a46e8b5b556e758

SHA512
fcfc11500a11049f5022480827de96c804752f3f7ac503d60d6d4ce33f1920a16c9aa86d90f5f75cbb4a2a98ee332c7f68d7f551c4211dd8b1439e0ed4a841d2

Download Submit
memory/4520-0-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/4520-1-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/4520-2-0x00000000004B0000-0x00000000004BA000-memory.dmp

Filesize
40KB

Download
memory/4520-5-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads