05cc8b8cf97e9887429344964ce61525de95e1880f5ad23a9cbede5017fc09e2

Analysis

max time kernel
148s
max time network
153s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
19/02/2024, 16:45

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General

Target

2024-02-19_a56a482d6dc2228db3b9372d18fe6f65_cryptolocker.exe
Size

40KB
MD5

a56a482d6dc2228db3b9372d18fe6f65
SHA1

3c1a300a78ebb0c4d572efd510370a954f1c67dc
SHA256

05cc8b8cf97e9887429344964ce61525de95e1880f5ad23a9cbede5017fc09e2
SHA512

9342d3580047862c947c6c4f8a5476af5228e5a04efc5a57703e9b65d4200535156e48af5c95bc551b23230e980ef273d1200ba4330e5c619abfc06d11823ae2
SSDEEP

768:bIDOw9UiaCHfjnE0Sf88AvvP1oghYvm9/6Dy8POKG:bIDOw9a0Dwo3P1ojvUSDh4

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x0007000000012281-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2240	lossy.exe

Loads dropped DLL 1 IoCs

pid	Process
1308	2024-02-19_a56a482d6dc2228db3b9372d18fe6f65_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 1308 wrote to memory of 2240	1308	2024-02-19_a56a482d6dc2228db3b9372d18fe6f65_cryptolocker.exe	28
PID 1308 wrote to memory of 2240	1308	2024-02-19_a56a482d6dc2228db3b9372d18fe6f65_cryptolocker.exe	28
PID 1308 wrote to memory of 2240	1308	2024-02-19_a56a482d6dc2228db3b9372d18fe6f65_cryptolocker.exe	28
PID 1308 wrote to memory of 2240	1308	2024-02-19_a56a482d6dc2228db3b9372d18fe6f65_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-19_a56a482d6dc2228db3b9372d18fe6f65_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-19_a56a482d6dc2228db3b9372d18fe6f65_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1308
- C:\Users\Admin\AppData\Local\Temp\lossy.exe
  "C:\Users\Admin\AppData\Local\Temp\lossy.exe"
  2⤵
  - Executes dropped EXE
  PID:2240

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
40KB

MD5
c658f25b426dd64339617728d962b991

SHA1
9e293bbc5783d68482a5863621e75e7fab2b8271

SHA256
da1a19f2b8b6f219da91a1f291c84a85207cf5ca96044bb2c7817642bc0fb593

SHA512
90f79681b83422259f982e2e3736c9f2b144b3b226d57f9aee472ab3bfa56a8b3e08b23e1cbe9dc42e892db033576115374581cbe05d1948876a4dff2b0bb7e5

Download Submit
memory/1308-0-0x0000000000230000-0x0000000000236000-memory.dmp

Filesize
24KB

Download
memory/1308-1-0x0000000000230000-0x0000000000236000-memory.dmp

Filesize
24KB

Download
memory/1308-2-0x0000000000260000-0x0000000000266000-memory.dmp

Filesize
24KB

Download
memory/2240-17-0x0000000000420000-0x0000000000426000-memory.dmp

Filesize
24KB

Download
memory/2240-15-0x0000000000450000-0x0000000000456000-memory.dmp

Filesize
24KB

Download