ac7bab240c329a45b202befa2c433245781d942187a1b0c8f56baae9560ed9be

Analysis

max time kernel
119s
max time network
120s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
29/02/2024, 07:37

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General

Target

2024-02-29_779df08fea9dcc3f9cdb86eb2f8ca8b5_cryptolocker.exe
Size

39KB
MD5

779df08fea9dcc3f9cdb86eb2f8ca8b5
SHA1

d0d395d3ae9e84df77b381707c147405f9ac819b
SHA256

ac7bab240c329a45b202befa2c433245781d942187a1b0c8f56baae9560ed9be
SHA512

db2d8b4f1ffe06e9b174e289a8b91a1019048562fe9ab65cdaf1a4976c70cf7215b61a132d59c4e4ae6fb8b6dcc69a3ebd4cbb5a9a1c39052736d52935899e2e
SSDEEP

384:btBYQg/WIEhUCSNyepEjYnDOAlzVol6U/zzo+tkq4XDIwNiJXxXunrkwI+YQ7U:btB9g/WItCSsAGjX7e9N0hunrkko

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000d000000012248-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2808	gewos.exe

Loads dropped DLL 1 IoCs

pid	Process
2872	2024-02-29_779df08fea9dcc3f9cdb86eb2f8ca8b5_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
2872	2024-02-29_779df08fea9dcc3f9cdb86eb2f8ca8b5_cryptolocker.exe
2808	gewos.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2872 wrote to memory of 2808	2872	2024-02-29_779df08fea9dcc3f9cdb86eb2f8ca8b5_cryptolocker.exe	28
PID 2872 wrote to memory of 2808	2872	2024-02-29_779df08fea9dcc3f9cdb86eb2f8ca8b5_cryptolocker.exe	28
PID 2872 wrote to memory of 2808	2872	2024-02-29_779df08fea9dcc3f9cdb86eb2f8ca8b5_cryptolocker.exe	28
PID 2872 wrote to memory of 2808	2872	2024-02-29_779df08fea9dcc3f9cdb86eb2f8ca8b5_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-29_779df08fea9dcc3f9cdb86eb2f8ca8b5_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-29_779df08fea9dcc3f9cdb86eb2f8ca8b5_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2872
- 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:2808

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

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

Filesize
39KB

MD5
9776640dab4ac3ca08b0e3aea34f6b37

SHA1
ea11b764d964e0fc1c60937538fa1db90bde0d37

SHA256
41eb74d50a000d12a818e5b2f48623b81591d13733cb2bb5f9ede1fbe206fe98

SHA512
48435ff2ed066ee43516b2fd5d134ba68411b27f694a32b9e7671f7c5a32f20638138955641c0e11732cd90f2f7b1bca8fda7eac887e29a58361b83939379b01

Download Submit
memory/2872-0-0x00000000003D0000-0x00000000003D6000-memory.dmp

Filesize
24KB

Download
memory/2872-1-0x00000000003D0000-0x00000000003D6000-memory.dmp

Filesize
24KB

Download
memory/2872-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download