ee44447b359781a3c438b6966a708ae4341bba557ff172aa4c084e6871288b7b

Analysis

max time kernel
117s
max time network
124s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
10/04/2024, 20:32

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General

Target

2024-04-10_cffe1c2fd3209d94b8238e8cd916fdeb_cryptolocker.exe
Size

38KB
MD5

cffe1c2fd3209d94b8238e8cd916fdeb
SHA1

965b6478687874c78683ae68f1b9edfbc1e5ce1e
SHA256

ee44447b359781a3c438b6966a708ae4341bba557ff172aa4c084e6871288b7b
SHA512

3fe42379f954fe1973b5d6b7ed9ec5b934ade04aed9f985d9418a0dd316309cf5ec82ebc9d6802268d13d748dffb1b4440d7c06cf84279076a840754ba7161f7
SSDEEP

384:btBYQg/WIEhUCSNyepEjYnDOAlzVol6U/zzo+tkq4XDIwNiJXxXunKzH15U/E3:btB9g/WItCSsAGjX7e9N0hunKLYc

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x0009000000015c23-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
1636	gewos.exe

Loads dropped DLL 1 IoCs

pid	Process
2776	2024-04-10_cffe1c2fd3209d94b8238e8cd916fdeb_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
2776	2024-04-10_cffe1c2fd3209d94b8238e8cd916fdeb_cryptolocker.exe
1636	gewos.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2776 wrote to memory of 1636	2776	2024-04-10_cffe1c2fd3209d94b8238e8cd916fdeb_cryptolocker.exe	28
PID 2776 wrote to memory of 1636	2776	2024-04-10_cffe1c2fd3209d94b8238e8cd916fdeb_cryptolocker.exe	28
PID 2776 wrote to memory of 1636	2776	2024-04-10_cffe1c2fd3209d94b8238e8cd916fdeb_cryptolocker.exe	28
PID 2776 wrote to memory of 1636	2776	2024-04-10_cffe1c2fd3209d94b8238e8cd916fdeb_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-10_cffe1c2fd3209d94b8238e8cd916fdeb_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-10_cffe1c2fd3209d94b8238e8cd916fdeb_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2776
- 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:1636

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
38KB

MD5
7826824da8e351c754d65f4e246b8a98

SHA1
d80895f4c7a6b1d3fab398acec98f5724fb7f8e9

SHA256
ae452c7f18d1100322e9f1ef4af9abe3e2b01a5c6efb41aced73055de5c8adf0

SHA512
b8896e4f996f584cb732f038a132f5cc4d055146fb2d129c989ec5f7a635ae6afdcabdda8721feeb7dd0194b8a36bb102a71541cb3c3f7294ff31033fb1583c8

Download Submit
memory/1636-16-0x00000000002F0000-0x00000000002F6000-memory.dmp

Filesize
24KB

Download
memory/2776-0-0x0000000000260000-0x0000000000266000-memory.dmp

Filesize
24KB

Download
memory/2776-1-0x0000000000260000-0x0000000000266000-memory.dmp

Filesize
24KB

Download
memory/2776-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download