b8886396e40d76f23b041b914bae0e5d1b116699f3e0ca08b7ddeb31df657c67

Analysis

max time kernel
148s
max time network
154s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
15/03/2024, 03:42

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General

Target

2024-03-15_0164f86cb4464597862ff8ee0cfe9e7a_cryptolocker.exe
Size

386KB
MD5

0164f86cb4464597862ff8ee0cfe9e7a
SHA1

f01f916550c7a4d021e410531b7d80a572d703f7
SHA256

b8886396e40d76f23b041b914bae0e5d1b116699f3e0ca08b7ddeb31df657c67
SHA512

57024fc223c38dc205472522e52c3efc8e8fc4e544edf5c8998d1d9e4383161d53f8744efbcdf663bdf15c6165a1a0cc35a7a6fb22ef1411364d1957b198039d
SSDEEP

6144:nnOsaQgAOjvrZFODJjBz3j1jTqQy6v2GGnugOtihzXR:nnOflT/ZFIjBz3xjTxynGUOUhXR

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000e00000001224e-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
3064	hasfj.exe

Loads dropped DLL 1 IoCs

pid	Process
1712	2024-03-15_0164f86cb4464597862ff8ee0cfe9e7a_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 1712 wrote to memory of 3064	1712	2024-03-15_0164f86cb4464597862ff8ee0cfe9e7a_cryptolocker.exe	28
PID 1712 wrote to memory of 3064	1712	2024-03-15_0164f86cb4464597862ff8ee0cfe9e7a_cryptolocker.exe	28
PID 1712 wrote to memory of 3064	1712	2024-03-15_0164f86cb4464597862ff8ee0cfe9e7a_cryptolocker.exe	28
PID 1712 wrote to memory of 3064	1712	2024-03-15_0164f86cb4464597862ff8ee0cfe9e7a_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-15_0164f86cb4464597862ff8ee0cfe9e7a_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-15_0164f86cb4464597862ff8ee0cfe9e7a_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1712
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:3064

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\hasfj.exe

Filesize
386KB

MD5
1063588066a8b57180105318b00941c9

SHA1
59d98976df7b65066b8b4e6ce0f95bfaed4158a1

SHA256
a036138ba185659c2fb6e5689719b6ef95b82de661dcad0fc282164c4e7b33fe

SHA512
f4cf909f230112b9bf15959f08df9da9b0fcacebbd95fd246c1d12592bb9c0e4e45faae6c6574fd7054d3c15ff9f1dab7ef58d1f652e59db9af64c3836806bda

Download Submit
memory/1712-0-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/1712-2-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/1712-1-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/3064-15-0x0000000001CA0000-0x0000000001CA6000-memory.dmp

Filesize
24KB

Download
memory/3064-17-0x0000000000580000-0x0000000000586000-memory.dmp

Filesize
24KB

Download