50e4de40d5677e3f7dc61b351214b51c0a955ede38a7931e6efd8f5390edb2c5

Analysis

max time kernel
117s
max time network
119s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
28/04/2024, 16:38

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General

Target

2024-04-28_ac14ad06a178c7727f35b867ab5804a1_cryptolocker.exe
Size

38KB
MD5

ac14ad06a178c7727f35b867ab5804a1
SHA1

bdc57e3e6855a4cdef2afc2eeeef6dbfe357bd13
SHA256

50e4de40d5677e3f7dc61b351214b51c0a955ede38a7931e6efd8f5390edb2c5
SHA512

f8a353c9d84958962f252eb660a6410676a96b9a2398d11978c081ab536febde6d308922904f2a03ec6a2c4bed6a6b63db17d0dfdfab1a22d556504195357d94
SSDEEP

384:btBYQg/WIEhUCSNyepEjYnDOAlzVol6U/zzo+tkq4XDIwNiJXxXunRSyHmYvV8L:btB9g/WItCSsAGjX7e9N0hunRvGIV8L

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b000000014454-13.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2536	gewos.exe

Loads dropped DLL 1 IoCs

pid	Process
2196	2024-04-28_ac14ad06a178c7727f35b867ab5804a1_cryptolocker.exe

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

System Information Discovery
T1082

Suspicious use of UnmapMainImage 2 IoCs

pid	Process
2196	2024-04-28_ac14ad06a178c7727f35b867ab5804a1_cryptolocker.exe
2536	gewos.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2196 wrote to memory of 2536	2196	2024-04-28_ac14ad06a178c7727f35b867ab5804a1_cryptolocker.exe	28
PID 2196 wrote to memory of 2536	2196	2024-04-28_ac14ad06a178c7727f35b867ab5804a1_cryptolocker.exe	28
PID 2196 wrote to memory of 2536	2196	2024-04-28_ac14ad06a178c7727f35b867ab5804a1_cryptolocker.exe	28
PID 2196 wrote to memory of 2536	2196	2024-04-28_ac14ad06a178c7727f35b867ab5804a1_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-28_ac14ad06a178c7727f35b867ab5804a1_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-28_ac14ad06a178c7727f35b867ab5804a1_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2196
- C:\Users\Admin\AppData\Local\Temp\gewos.exe
  "C:\Users\Admin\AppData\Local\Temp\gewos.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of UnmapMainImage
  PID:2536

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\gewos.exe

Filesize
38KB

MD5
75d69a62e567c733b867b8bfc60eeffd

SHA1
9da132d7b9ce920479077cae86cf42acf387679d

SHA256
7518bc2b45b92d6bea5ba04315b759ccc4e5550a7c34b521df8053f4903b1623

SHA512
7b573ed5a371f81d254266bcb81ef15605ad101e847780fbf0e70e3024285417e81858c24d9a8da4a5588d5ab612d33efa8c985d50b40750f2452a088ee7a5e1

Download Submit
memory/2196-0-0x00000000003F0000-0x00000000003F6000-memory.dmp

Filesize
24KB

Download
memory/2196-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2196-8-0x00000000003F0000-0x00000000003F6000-memory.dmp

Filesize
24KB

Download
memory/2536-23-0x0000000000380000-0x0000000000386000-memory.dmp

Filesize
24KB

Download