592ceaa4ed5c0a4da2b4a00063802e1363dccc24e9bc22b6ad2621ed0caaa5d1

Analysis

max time kernel
148s
max time network
150s
platform
windows7_x64
resource
win7-20240215-en
resource tags

arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system
submitted
09-03-2024 15:34

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General

Target

2024-03-09_520bcbbdff307a06c5d09c2001b2f2ec_cryptolocker.exe
Size

47KB
MD5

520bcbbdff307a06c5d09c2001b2f2ec
SHA1

3c7d757dd6fef62ce1c523bfe729685842a29561
SHA256

592ceaa4ed5c0a4da2b4a00063802e1363dccc24e9bc22b6ad2621ed0caaa5d1
SHA512

81bc598a8026f12f5619c803986f30fc5e6d2535e932e85debe61a0255ce377ad25ac96bf4ee85ca00ce85a230a51cc152fb761fe890d9e7581b23ad6c272c78
SSDEEP

768:bgX4zYcgTEu6QOaryfjqDlC6JFbK37YbDu5z/hvvkb:bgGYcA/53GAA6y37nbO

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x00070000000122be-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2532	hasfj.exe

Loads dropped DLL 1 IoCs

pid	Process
2908	2024-03-09_520bcbbdff307a06c5d09c2001b2f2ec_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 2908 wrote to memory of 2532	2908	2024-03-09_520bcbbdff307a06c5d09c2001b2f2ec_cryptolocker.exe	28
PID 2908 wrote to memory of 2532	2908	2024-03-09_520bcbbdff307a06c5d09c2001b2f2ec_cryptolocker.exe	28
PID 2908 wrote to memory of 2532	2908	2024-03-09_520bcbbdff307a06c5d09c2001b2f2ec_cryptolocker.exe	28
PID 2908 wrote to memory of 2532	2908	2024-03-09_520bcbbdff307a06c5d09c2001b2f2ec_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-09_520bcbbdff307a06c5d09c2001b2f2ec_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-09_520bcbbdff307a06c5d09c2001b2f2ec_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2908
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:2532

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
47KB

MD5
e9c295a3da920532ab4a3742bea4282b

SHA1
ac828b18d84c0642907cbc83a3c3bfad9a34a021

SHA256
11e353f5a06b0d35b251e9518a60397b6bc79eb8eca14da1bacc92e2c4711774

SHA512
d8fcac6ec50dd3266dd6ec50fff98e0a8c3ccdc73ceb2f108d57be3d625775470d387a3ccf9aee3b0136f1e7d6afa918f84b1e1ec8a9b6181455e81242f21980

Download Submit
memory/2532-15-0x00000000002E0000-0x00000000002E6000-memory.dmp

Filesize
24KB

Download
memory/2532-20-0x00000000002D0000-0x00000000002D6000-memory.dmp

Filesize
24KB

Download
memory/2908-0-0x0000000000470000-0x0000000000476000-memory.dmp

Filesize
24KB

Download
memory/2908-1-0x0000000000580000-0x0000000000586000-memory.dmp

Filesize
24KB

Download
memory/2908-2-0x0000000000470000-0x0000000000476000-memory.dmp

Filesize
24KB

Download