bd7ea11316122af8bf826b2f3a719cc95289a7bb1025bab8fbb480cf5b736ef5

Analysis

max time kernel
150s
max time network
152s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
26/01/2024, 20:24

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General

Target

2024-01-26_1f8f81d6129c5923b7a0d935befa7844_cryptolocker.exe
Size

38KB
MD5

1f8f81d6129c5923b7a0d935befa7844
SHA1

6b7b34142fb4f9054a38acc8caca2c1d6f98f024
SHA256

bd7ea11316122af8bf826b2f3a719cc95289a7bb1025bab8fbb480cf5b736ef5
SHA512

72325c400bc3c3ab14cb3cbb9f97d4ecf07cc24d04af5d3cb192a829f38fa4f4799a165e19a048d231ecfa3c023437c7fd11bae517a32ed6370aef1bb7476eda
SSDEEP

768:bIDOw9UiaCHfjnE0Sf88AvvP1oghYvm9/6Dy8Pc:bIDOw9a0Dwo3P1ojvUSDh0

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x0009000000012258-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2792	lossy.exe

Loads dropped DLL 1 IoCs

pid	Process
2988	2024-01-26_1f8f81d6129c5923b7a0d935befa7844_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 2988 wrote to memory of 2792	2988	2024-01-26_1f8f81d6129c5923b7a0d935befa7844_cryptolocker.exe	28
PID 2988 wrote to memory of 2792	2988	2024-01-26_1f8f81d6129c5923b7a0d935befa7844_cryptolocker.exe	28
PID 2988 wrote to memory of 2792	2988	2024-01-26_1f8f81d6129c5923b7a0d935befa7844_cryptolocker.exe	28
PID 2988 wrote to memory of 2792	2988	2024-01-26_1f8f81d6129c5923b7a0d935befa7844_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-01-26_1f8f81d6129c5923b7a0d935befa7844_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-26_1f8f81d6129c5923b7a0d935befa7844_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2988
- C:\Users\Admin\AppData\Local\Temp\lossy.exe
  "C:\Users\Admin\AppData\Local\Temp\lossy.exe"
  2⤵
  - Executes dropped EXE
  PID:2792

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
39KB

MD5
7f662b1c8c4350b3e33a2dc6a9708478

SHA1
09326003b09e1293a05e15ea6d05acab5e0256e2

SHA256
1ef6d1c2bbb20689ebb485e520bece43fccfb745dbb23612f426b7c163109e13

SHA512
254673e3e72c03ab6370d40935abfde752c1d2ba5b4fe28c5676391bd2dc8ca1ba84317dcad6a1cad9dc5a4aa72ac814354b629e8df5e28340a4798925e605c3

Download Submit
memory/2792-16-0x0000000000340000-0x0000000000346000-memory.dmp

Filesize
24KB

Download
memory/2792-15-0x0000000000310000-0x0000000000316000-memory.dmp

Filesize
24KB

Download
memory/2988-0-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/2988-1-0x0000000000330000-0x0000000000336000-memory.dmp

Filesize
24KB

Download
memory/2988-2-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download