32fb85f486ba580d25398d728b872849ebb1881bfb69dab639a118c6f67cc495

Analysis

max time kernel
43s
max time network
126s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
31/12/2023, 02:33

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General

Target

2499726e2879c12ab4f1ea9dea899364.exe
Size

52KB
MD5

2499726e2879c12ab4f1ea9dea899364
SHA1

cfbdb5bb3945634f1bc2ab69cc0ac2dbcbe51848
SHA256

32fb85f486ba580d25398d728b872849ebb1881bfb69dab639a118c6f67cc495
SHA512

83bc31f66d72aeccb8771de838d51ff73b537cb8793cb1bef061f2064e5b68ca6791253aec113f7883a836c4fe36a307f6e4cc1e1979df73da6acbf08707c3b1
SSDEEP

768:pfQwzOFcZIvTFyZnfaKXrBdP+I6wiD9NE6qo6j+Zlqi1+TsC6v7VaHvx8eClUu0i:qwzOSEqiK7vGn9NE6gSTCxg7AYgx

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\USER\S-1-5-21-452311807-3713411997-1028535425-1000\Software\Microsoft\Windows\CurrentVersion\Run\braviax = "C:\\Windows\\system32\\braviax.exe"	2499726e2879c12ab4f1ea9dea899364.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\braviax = "C:\\Windows\\system32\\braviax.exe"	2499726e2879c12ab4f1ea9dea899364.exe

Drops file in System32 directory 1 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\braviax.exe	2499726e2879c12ab4f1ea9dea899364.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 2756 wrote to memory of 2760	2756	2499726e2879c12ab4f1ea9dea899364.exe	30
PID 2756 wrote to memory of 2760	2756	2499726e2879c12ab4f1ea9dea899364.exe	30
PID 2756 wrote to memory of 2760	2756	2499726e2879c12ab4f1ea9dea899364.exe	30
PID 2756 wrote to memory of 2760	2756	2499726e2879c12ab4f1ea9dea899364.exe	30

C:\Users\Admin\AppData\Local\Temp\2499726e2879c12ab4f1ea9dea899364.exe
"C:\Users\Admin\AppData\Local\Temp\2499726e2879c12ab4f1ea9dea899364.exe"
1⤵
- Adds Run key to start application
- Drops file in System32 directory
- Suspicious use of WriteProcessMemory
PID:2756
- C:\Windows\SysWOW64\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Local\Temp\delself.bat" "
  2⤵
  PID:2760

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
8d6c7be1269d587d7c6bb7738db81f7a

SHA1
cdb538b161b129f97fc1739ca26209e8d319b9be

SHA256
53087750845e077982e653116baa42f7468c137fd9663cd66565ab2ae5bcaa89

SHA512
11430c2bda3976b215cb8e0127960406f4584be50c2bde7aabd96410f80e9a7570523e041d51167bed42db9edc95e97e4b28b8e76e3b1f42e145bf1457a3a161

Download Submit
memory/2756-0-0x0000000000220000-0x000000000022D000-memory.dmp

Filesize
52KB

Download
memory/2756-11-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads