2c7d6c8765b0bebfa9dce69e847aa0c4a534b7902f6d6496a1d08b3babbc9d4d

Analysis

max time kernel
150s
max time network
119s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
07/01/2024, 10:47

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General

Target

48c33a380ff727429804cf986959f3a9.exe
Size

49KB
MD5

48c33a380ff727429804cf986959f3a9
SHA1

bb95304aac319b430040e832a637aaa7b787f9e7
SHA256

2c7d6c8765b0bebfa9dce69e847aa0c4a534b7902f6d6496a1d08b3babbc9d4d
SHA512

7f30143e66e0d4230818ef3072c46ff4389fd728326d2f219a9cd24ed19163f055596ab9c11ed420950e57d4ddb08903648d1deee0fcd3aada54f93ddb1b86a9
SSDEEP

768:EyAUnK3IgiSaaVWmGJl8Mm0+byVw5BF985pwvv+HJq+JyKxqTOKu58VSDR:eUnQUSqmG00qCwLHmphJbAOKVSD

Score

6^/10

persistence

Malware Config

Signatures

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\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\braviax = "C:\\Windows\\system32\\braviax.exe"	48c33a380ff727429804cf986959f3a9.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3818056530-936619650-3554021955-1000\Software\Microsoft\Windows\CurrentVersion\Run\braviax = "C:\\Windows\\system32\\braviax.exe"	48c33a380ff727429804cf986959f3a9.exe

Drops file in System32 directory 1 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\braviax.exe	48c33a380ff727429804cf986959f3a9.exe

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

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1236 wrote to memory of 2708	1236	48c33a380ff727429804cf986959f3a9.exe	28
PID 1236 wrote to memory of 2708	1236	48c33a380ff727429804cf986959f3a9.exe	28
PID 1236 wrote to memory of 2708	1236	48c33a380ff727429804cf986959f3a9.exe	28
PID 1236 wrote to memory of 2708	1236	48c33a380ff727429804cf986959f3a9.exe	28

C:\Users\Admin\AppData\Local\Temp\48c33a380ff727429804cf986959f3a9.exe
"C:\Users\Admin\AppData\Local\Temp\48c33a380ff727429804cf986959f3a9.exe"
1⤵
- Adds Run key to start application
- Drops file in System32 directory
- Suspicious use of WriteProcessMemory
PID:1236
- C:\Windows\SysWOW64\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Local\Temp\delself.bat" "
  2⤵
  PID:2708

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

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

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

Filesize
202B

MD5
3d0dfa11952e24da153ce96cb611e0f4

SHA1
1ec1859a40616e4d1179de820d8c2d1c3f3f67d2

SHA256
74b8df2111e79286baa857ddbc8d733234c57b5f2216a8363813028a3cca6525

SHA512
d63e1a114e5f29d21ab9a886b8affcd2159e642665727ecb530ca692d523a70f832d26551371d844d79f82abe478069ae51c5a659313431d7e41408161d4284a

Download Submit
memory/1236-0-0x0000000000220000-0x000000000022C000-memory.dmp

Filesize
48KB

Download
memory/1236-11-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads