97502741e08151716b2d8e4d7ff5cf4114395e5c300f7cdb5801f985b6531320

Analysis

max time kernel
117s
max time network
118s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
30/04/2024, 02:51

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General

Target

2024-04-30_9815086b5b97bb4b3a9b31c731d2d4d5_cryptolocker.exe
Size

40KB
MD5

9815086b5b97bb4b3a9b31c731d2d4d5
SHA1

14dcb8ce1f2df2847950b7afc56a42e3fe4b5ccf
SHA256

97502741e08151716b2d8e4d7ff5cf4114395e5c300f7cdb5801f985b6531320
SHA512

7c639923ff59e61ab93ddbcefa7d3da0b298b08a839a2634bd167814fee3b584e524955725a580bb0a9fbdfa4c91901ac8e6492ebba9a2643056fcc8858f3d3e
SSDEEP

384:btBYQg/WIEhUCSNyepEjYnDOAlzVol6U/zzo+tkq4XDIwNiJXxXunKzH15U/EG:btB9g/WItCSsAGjX7e9N0hunKLY5

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000d000000014708-14.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
1748	gewos.exe

Loads dropped DLL 1 IoCs

pid	Process
2056	2024-04-30_9815086b5b97bb4b3a9b31c731d2d4d5_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
2056	2024-04-30_9815086b5b97bb4b3a9b31c731d2d4d5_cryptolocker.exe
1748	gewos.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2056 wrote to memory of 1748	2056	2024-04-30_9815086b5b97bb4b3a9b31c731d2d4d5_cryptolocker.exe	28
PID 2056 wrote to memory of 1748	2056	2024-04-30_9815086b5b97bb4b3a9b31c731d2d4d5_cryptolocker.exe	28
PID 2056 wrote to memory of 1748	2056	2024-04-30_9815086b5b97bb4b3a9b31c731d2d4d5_cryptolocker.exe	28
PID 2056 wrote to memory of 1748	2056	2024-04-30_9815086b5b97bb4b3a9b31c731d2d4d5_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-30_9815086b5b97bb4b3a9b31c731d2d4d5_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-30_9815086b5b97bb4b3a9b31c731d2d4d5_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2056
- 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:1748

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
40KB

MD5
7914a6005ba2e515504b33beb07709e1

SHA1
3cc4e1b8c4d4402b288dadd4845d2cccb56d5c76

SHA256
29e93878d11e1dd0eed19d613f4c49d20cf33eee11f767b73f82c4d95e8474e2

SHA512
df4048681b1380da2408c253897257393556ac3b515826cb313eefefe8b7dd267ab117a95c23e6b7c031f534c1718654f2bf574dfff0f43f8dbc820f14c4fad2

Download Submit
memory/1748-23-0x00000000003E0000-0x00000000003E6000-memory.dmp

Filesize
24KB

Download
memory/2056-8-0x00000000005A0000-0x00000000005A6000-memory.dmp

Filesize
24KB

Download
memory/2056-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2056-0-0x00000000005A0000-0x00000000005A6000-memory.dmp

Filesize
24KB

Download