e54edd9b980f9e3a367276aa60727bd43532a9eabe393748f617a1337f60d4a7

Analysis

max time kernel
148s
max time network
152s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
23/02/2024, 11:11

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General

Target

2024-02-23_f58d7b2f054ef18f88ab0329c337aa36_cryptolocker.exe
Size

38KB
MD5

f58d7b2f054ef18f88ab0329c337aa36
SHA1

7ddf66b8de589cb34d2c0a4df0baa39a56dcab22
SHA256

e54edd9b980f9e3a367276aa60727bd43532a9eabe393748f617a1337f60d4a7
SHA512

2940eaf786b6b2ff3e17c139a4981c9fbe4615b856fee622f23ba9c65aefa12b9cc8d6b647388d5a341823efd116aef882a177fcc8c5e1ffe4ba841fce89d881
SSDEEP

768:bIDOw9UiaCHfjnE0Sf88AvvP1oghYvm9/6DyE9xcN:bIDOw9a0Dwo3P1ojvUSD79A

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b000000012241-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2120	lossy.exe

Loads dropped DLL 1 IoCs

pid	Process
1784	2024-02-23_f58d7b2f054ef18f88ab0329c337aa36_cryptolocker.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1784 wrote to memory of 2120	1784	2024-02-23_f58d7b2f054ef18f88ab0329c337aa36_cryptolocker.exe	28
PID 1784 wrote to memory of 2120	1784	2024-02-23_f58d7b2f054ef18f88ab0329c337aa36_cryptolocker.exe	28
PID 1784 wrote to memory of 2120	1784	2024-02-23_f58d7b2f054ef18f88ab0329c337aa36_cryptolocker.exe	28
PID 1784 wrote to memory of 2120	1784	2024-02-23_f58d7b2f054ef18f88ab0329c337aa36_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-23_f58d7b2f054ef18f88ab0329c337aa36_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-23_f58d7b2f054ef18f88ab0329c337aa36_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1784
- C:\Users\Admin\AppData\Local\Temp\lossy.exe
  "C:\Users\Admin\AppData\Local\Temp\lossy.exe"
  2⤵
  - Executes dropped EXE
  PID:2120

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\lossy.exe

Filesize
38KB

MD5
236f6902452cf3c3dbd8aba15fd77090

SHA1
f83faf28674190cb57cc3c04d15c560f836cae16

SHA256
7a445d9cd3006468f5f76df26a47ff392a8c0e337d59ca31563f3d13c594e19a

SHA512
0a794d03105c0a9f507e590864cf118653741906c48accab655fb4072f1be59340616a6de4a871811888306a4df6cb63f667bf3075d92f42798d51394f627352

Download Submit
memory/1784-0-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/1784-1-0x0000000000270000-0x0000000000276000-memory.dmp

Filesize
24KB

Download
memory/1784-6-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2120-15-0x0000000000350000-0x0000000000356000-memory.dmp

Filesize
24KB

Download
memory/2120-17-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download