c27209e407c7ec6bba16a783144e8eee3141a3923008c5b6d755557f06db58f2

Analysis

max time kernel
120s
max time network
123s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
27/02/2024, 15:41

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General

Target

2024-02-27_f0727409e527e8800452839719cf70e5_cryptolocker.exe
Size

36KB
MD5

f0727409e527e8800452839719cf70e5
SHA1

ea558b73844706a7832c96757e4f5c640f7c150c
SHA256

c27209e407c7ec6bba16a783144e8eee3141a3923008c5b6d755557f06db58f2
SHA512

1e97d5388e48b92deb072378952dac2cfa00d8a23608b6f6f1ed2a88a3c549d192bc708d94c9b8330f1cd862011dc432276e720eb72c8ca2adb5faa824cca5b3
SSDEEP

384:btBYQg/WIEhUCSNyepEjYnDOAlzVol6U/zzo+tkq4XDIwNiJXxXunUgVg:btB9g/WItCSsAGjX7e9N0hunUWg

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000a00000001223a-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
3032	gewos.exe

Loads dropped DLL 1 IoCs

pid	Process
1992	2024-02-27_f0727409e527e8800452839719cf70e5_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
1992	2024-02-27_f0727409e527e8800452839719cf70e5_cryptolocker.exe
3032	gewos.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1992 wrote to memory of 3032	1992	2024-02-27_f0727409e527e8800452839719cf70e5_cryptolocker.exe	28
PID 1992 wrote to memory of 3032	1992	2024-02-27_f0727409e527e8800452839719cf70e5_cryptolocker.exe	28
PID 1992 wrote to memory of 3032	1992	2024-02-27_f0727409e527e8800452839719cf70e5_cryptolocker.exe	28
PID 1992 wrote to memory of 3032	1992	2024-02-27_f0727409e527e8800452839719cf70e5_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-27_f0727409e527e8800452839719cf70e5_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-27_f0727409e527e8800452839719cf70e5_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:1992
- 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:3032

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
37KB

MD5
15f76d7e1c6acce2905f07ecc6e12ad7

SHA1
23e24739f5e9be26b4a031fc2dfe00d1673aa000

SHA256
24ae9fd09a28d063d86ecce61b7fc861de873c4c6c575f415e09872da0d26eed

SHA512
2b9246ec80c22d7f0419ad928336d4d938a6ca9cee7f74c290097335c3e496e704144affef9497d8544f03f007fa09d1ee57b5bde5c793b69df8efdd72c0fd01

Download Submit
memory/1992-0-0x00000000003C0000-0x00000000003C6000-memory.dmp

Filesize
24KB

Download
memory/1992-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/1992-1-0x00000000003C0000-0x00000000003C6000-memory.dmp

Filesize
24KB

Download
memory/3032-16-0x00000000005A0000-0x00000000005A6000-memory.dmp

Filesize
24KB

Download