63cd729dc3c0036068ef075b49d01e2a528db53d5c0f68a7772b5bcab9a6b82b

Analysis

max time kernel
118s
max time network
119s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
09-04-2024 03:45

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General

Target

2024-04-09_33c43e40a8a81b11723a54a30389de42_cryptolocker.exe
Size

34KB
MD5

33c43e40a8a81b11723a54a30389de42
SHA1

30f97a5e1cb468d3d9c842443c71001775d4854a
SHA256

63cd729dc3c0036068ef075b49d01e2a528db53d5c0f68a7772b5bcab9a6b82b
SHA512

f20d8a3d311d40dec3540238a2e7ed984402007ec7aae20865f70befb6af9f3df426de31bbc71a728ff4abb7cd6183c15bf5889570e4f8407d4a0b0b6a45c57e
SSDEEP

384:btBYQg/WIEhUCSNyepEjYnDOAlzVol6U/zzo+tkq4l8tFFxE2B0qj:btB9g/WItCSsAGjX7r3BTj

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x00080000000122cd-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2444	gewos.exe

Loads dropped DLL 1 IoCs

pid	Process
2664	2024-04-09_33c43e40a8a81b11723a54a30389de42_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
2664	2024-04-09_33c43e40a8a81b11723a54a30389de42_cryptolocker.exe
2444	gewos.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2664 wrote to memory of 2444	2664	2024-04-09_33c43e40a8a81b11723a54a30389de42_cryptolocker.exe	28
PID 2664 wrote to memory of 2444	2664	2024-04-09_33c43e40a8a81b11723a54a30389de42_cryptolocker.exe	28
PID 2664 wrote to memory of 2444	2664	2024-04-09_33c43e40a8a81b11723a54a30389de42_cryptolocker.exe	28
PID 2664 wrote to memory of 2444	2664	2024-04-09_33c43e40a8a81b11723a54a30389de42_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-09_33c43e40a8a81b11723a54a30389de42_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-09_33c43e40a8a81b11723a54a30389de42_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2664
- 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:2444

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
34KB

MD5
8746ec7a1081e6849984209bd4210ca8

SHA1
d6e342a1cb87e88b20bef8dd78573a04c97902f9

SHA256
cac136a3c52f1ce5b49273abe93a39a2f08d8ea7225105dcf1902cc8a5ee9246

SHA512
f88a8033085363d3d5fb747ac86bf2f5d85bca783219844f0f921bec58954e2452cdfd7392bfa2cfae468765036bec46ea9eaeef152da8958a656130edf00c9a

Download Submit
memory/2444-16-0x0000000000210000-0x0000000000216000-memory.dmp

Filesize
24KB

Download
memory/2664-0-0x0000000000290000-0x0000000000296000-memory.dmp

Filesize
24KB

Download
memory/2664-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2664-4-0x0000000000290000-0x0000000000296000-memory.dmp

Filesize
24KB

Download