033da5e51721f8d2a9cbd40c2ff93eee932ec0c8a390af0f296f48a68f0fe308

Analysis

max time kernel
151s
max time network
173s
platform
windows7_x64
resource
win7-20221111-en
resource tags

arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
submitted
27/11/2022, 08:38

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General

Target

033da5e51721f8d2a9cbd40c2ff93eee932ec0c8a390af0f296f48a68f0fe308.exe
Size

56KB
MD5

edb31667027f3fb2f3fb8c300ffa03d7
SHA1

747c5cb9b5a2d797b2a7de937b11f545b1628ad2
SHA256

033da5e51721f8d2a9cbd40c2ff93eee932ec0c8a390af0f296f48a68f0fe308
SHA512

62cfef163beb24a9d8d9aa38b1d24558984c75eb422b908bd282bc95bc3e6f9745d2dbd552dd858ac925e3ee9360d908b6d4741c36d6e581c4a9f7aae8089784
SSDEEP

1536:ZST+X1UBc/kaXEfNtVLUI+WNaT5uidskv1Lp2R:ZE+X2BWAdUItw5zp2R

Score

8^/10

persistence upx

Malware Config

Signatures

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\System32\drivers\etc\protocol	033da5e51721f8d2a9cbd40c2ff93eee932ec0c8a390af0f296f48a68f0fe308.exe

UPX packed file 2 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1404-55-0x0000000000400000-0x000000000048F000-memory.dmp	upx
behavioral1/memory/1404-58-0x0000000000400000-0x000000000048F000-memory.dmp	upx

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\RunOnce	033da5e51721f8d2a9cbd40c2ff93eee932ec0c8a390af0f296f48a68f0fe308.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\RunOnce\*1980385938 = "\"C:\\Users\\Admin\\AppData\\Roaming\\1980385938\\BCU.exe\""	033da5e51721f8d2a9cbd40c2ff93eee932ec0c8a390af0f296f48a68f0fe308.exe
Key created	\REGISTRY\MACHINE\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\RunOnce	033da5e51721f8d2a9cbd40c2ff93eee932ec0c8a390af0f296f48a68f0fe308.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\RunOnce\*1980385938 = "\"C:\\Users\\Admin\\AppData\\Roaming\\1980385938\\BCU.exe\""	033da5e51721f8d2a9cbd40c2ff93eee932ec0c8a390af0f296f48a68f0fe308.exe

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

System Information Discovery
T1082

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
1404	033da5e51721f8d2a9cbd40c2ff93eee932ec0c8a390af0f296f48a68f0fe308.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1404 wrote to memory of 576	1404	033da5e51721f8d2a9cbd40c2ff93eee932ec0c8a390af0f296f48a68f0fe308.exe	28
PID 1404 wrote to memory of 576	1404	033da5e51721f8d2a9cbd40c2ff93eee932ec0c8a390af0f296f48a68f0fe308.exe	28
PID 1404 wrote to memory of 576	1404	033da5e51721f8d2a9cbd40c2ff93eee932ec0c8a390af0f296f48a68f0fe308.exe	28
PID 1404 wrote to memory of 576	1404	033da5e51721f8d2a9cbd40c2ff93eee932ec0c8a390af0f296f48a68f0fe308.exe	28

C:\Users\Admin\AppData\Local\Temp\033da5e51721f8d2a9cbd40c2ff93eee932ec0c8a390af0f296f48a68f0fe308.exe
"C:\Users\Admin\AppData\Local\Temp\033da5e51721f8d2a9cbd40c2ff93eee932ec0c8a390af0f296f48a68f0fe308.exe"
1⤵
- Drops file in Drivers directory
- Adds Run key to start application
- Suspicious behavior: RenamesItself
- Suspicious use of WriteProcessMemory
PID:1404
- C:\Windows\SysWOW64\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Local\Temp\I1980385938.bat" "
  2⤵
  PID:576

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

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\I1980385938.bat

Filesize
23B

MD5
97aae1211f3a9c7ecd8531ee87ed5354

SHA1
3cec50b07d80bb054e90458d795e9867ba678851

SHA256
8668f8216a6e5ab8ff1fb5d4ad886ba768c843eb98394cd260d53e8ed4fbc145

SHA512
0fd8e9b2eb6a92794b569b7a29ff6609e81e1bb90ef2cb58cec29cf6c37b32fd82879ad24a1a7fef0ade0c6a8a3a1a7b7d7b7171e0c36cfac0b24df52aba6f1e

Download Submit
memory/1404-54-0x0000000075881000-0x0000000075883000-memory.dmp

Filesize
8KB

Download
memory/1404-55-0x0000000000400000-0x000000000048F000-memory.dmp

Filesize
572KB

Download
memory/1404-58-0x0000000000400000-0x000000000048F000-memory.dmp

Filesize
572KB

Download