60a7254518fcb5b5f5707507bb1b0054dae3ea28eb9d311d83049d315e199ba4

Analysis

max time kernel
149s
max time network
122s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
04/02/2024, 13:41

Sharing

Copy URL Twitter E-mail

Report Analysis Logs

General

Target

8f4a490dc751613082e3a9e32592ab78.exe
Size

43KB
MD5

8f4a490dc751613082e3a9e32592ab78
SHA1

61f6e68840fe57c9b2bed376a8a5a132ede0bbf6
SHA256

60a7254518fcb5b5f5707507bb1b0054dae3ea28eb9d311d83049d315e199ba4
SHA512

7928a0a4d92a74af65ead7cef3a0bfef3e2afe8fd7952ea93a186bdf55ffae153af4c2263909c45aa03bd16574f895ab546f9e5fa0e726d95471305e8c350aa7
SSDEEP

768:AsFRB0RRdJ2CyILFzIDvXF9BidETc86ndvn6vgmITABLh85DaPpInp6i659Cg:AyCyILZ0vXFBb6dyvjsBVEi6X

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-1-5-21-768304381-2824894965-3840216961-1000\Control Panel\International\Geo\Nation	8f4a490dc751613082e3a9e32592ab78.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-1-5-21-768304381-2824894965-3840216961-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\braviax = "C:\\Windows\\system32\\braviax.exe"	8f4a490dc751613082e3a9e32592ab78.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\braviax = "C:\\Windows\\system32\\braviax.exe"	8f4a490dc751613082e3a9e32592ab78.exe

Drops file in System32 directory 1 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\braviax.exe	8f4a490dc751613082e3a9e32592ab78.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 4524 wrote to memory of 5092	4524	8f4a490dc751613082e3a9e32592ab78.exe	85
PID 4524 wrote to memory of 5092	4524	8f4a490dc751613082e3a9e32592ab78.exe	85
PID 4524 wrote to memory of 5092	4524	8f4a490dc751613082e3a9e32592ab78.exe	85

C:\Users\Admin\AppData\Local\Temp\8f4a490dc751613082e3a9e32592ab78.exe
"C:\Users\Admin\AppData\Local\Temp\8f4a490dc751613082e3a9e32592ab78.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- Drops file in System32 directory
- Suspicious use of WriteProcessMemory
PID:4524
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\delself.bat" "
  2⤵
  PID:5092

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
c86868b182d40fb0f2f60ab1eaddd65a

SHA1
4d87d0806fbbccd5d914f41e9cf4b6b683c7f0b5

SHA256
96173328617e14f34c5847de9ff69bc8b3e4cf4e01b49afb59edc5365c705854

SHA512
2e92f45bfcb816193a20fd2969eff8b558c0f7cae65030b166a038c481cd1cd160d79653524b7a5b9e33965c48b4d6d0824d1268e4409382642be7f5f900aaf4

Download Submit
memory/4524-0-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/4524-1-0x00000000005C0000-0x00000000005CA000-memory.dmp

Filesize
40KB

Download
memory/4524-4-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads