d808719d27dc0f8cd6c37df221414131f99cb343364c194c574e35af9eedec28

Analysis

max time kernel
122s
max time network
127s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
22/02/2024, 06:00

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General

Target

2024-02-22_a4948b4dca7650df469d9cbe91ded604_cryptolocker.exe
Size

60KB
MD5

a4948b4dca7650df469d9cbe91ded604
SHA1

f6ff61f393f0894edcbaab55465ca5a81fb1f043
SHA256

d808719d27dc0f8cd6c37df221414131f99cb343364c194c574e35af9eedec28
SHA512

e4511487a6b877d221802392961c00d44a0efa5df0cdb027ba327e8f6f1e8035b4a9ec7a537d613313505262eaf791133dcf0964763002d43528b8ed75b74afc
SSDEEP

1536:btB9g/xtCSKfxLIc//Xr+/AO/kIZ3ft2nVuTKB6nggOlHdUHX:btng54SMLr+/AO/kIhfoKMHda

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x0009000000012265-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2212	gewos.exe

Loads dropped DLL 1 IoCs

pid	Process
952	2024-02-22_a4948b4dca7650df469d9cbe91ded604_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
952	2024-02-22_a4948b4dca7650df469d9cbe91ded604_cryptolocker.exe
2212	gewos.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 952 wrote to memory of 2212	952	2024-02-22_a4948b4dca7650df469d9cbe91ded604_cryptolocker.exe	28
PID 952 wrote to memory of 2212	952	2024-02-22_a4948b4dca7650df469d9cbe91ded604_cryptolocker.exe	28
PID 952 wrote to memory of 2212	952	2024-02-22_a4948b4dca7650df469d9cbe91ded604_cryptolocker.exe	28
PID 952 wrote to memory of 2212	952	2024-02-22_a4948b4dca7650df469d9cbe91ded604_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-22_a4948b4dca7650df469d9cbe91ded604_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-22_a4948b4dca7650df469d9cbe91ded604_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:952
- 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:2212

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
60KB

MD5
1d47b1eb0e2a8cda3fbf49be4c6a70d4

SHA1
1d93103a1a51d9a9bd11ad9ed71750f0fdd664a1

SHA256
c58928e42d76f2cd1bc1543fa7c8b87cdec2d2ed3f2928e1894adac219cd34a5

SHA512
0682d44446ede9faa951484bd4578f87ab688f9d990cf2fee1b0bf3973258ca0c8bb608ce686ccc0349a66dd949ea7519a049a90bc0aeb4b5b99095c7f8dfe8f

Download Submit
memory/952-0-0x00000000002A0000-0x00000000002A6000-memory.dmp

Filesize
24KB

Download
memory/952-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/952-7-0x00000000002A0000-0x00000000002A6000-memory.dmp

Filesize
24KB

Download
memory/2212-23-0x0000000000260000-0x0000000000266000-memory.dmp

Filesize
24KB

Download