491187444a1dbfec709afb612008e72e3027f5d6f9eaecbcef012db8d33b5a51

Analysis

max time kernel
148s
max time network
149s
platform
windows7_x64
resource
win7-20240220-en
resource tags

arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
submitted
12-03-2024 12:45

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General

Target

2024-03-12_b0138e1da5fdb3af970fa9848a2a913c_cryptolocker.exe
Size

128KB
MD5

b0138e1da5fdb3af970fa9848a2a913c
SHA1

849b5e65e59932c6efcfcc76ba5d71a35bd47235
SHA256

491187444a1dbfec709afb612008e72e3027f5d6f9eaecbcef012db8d33b5a51
SHA512

2cbe578a1992bcfbedea90bb92908a4dd9daaa566f47a1f9034c35405cfec2056c88af1a30d4511c390d767909c64f70ba6d1f54293a136d9af40c468acccdf1
SSDEEP

1536:vj+jsMQMOtEvwDpj5HwYYTjipvF2hBfIuBKLUYOVbvh//6:vCjsIOtEvwDpj5H9YvQd2RA

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000c000000012253-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000c000000012253-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
1332	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
2040	2024-03-12_b0138e1da5fdb3af970fa9848a2a913c_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 2040 wrote to memory of 1332	2040	2024-03-12_b0138e1da5fdb3af970fa9848a2a913c_cryptolocker.exe	28
PID 2040 wrote to memory of 1332	2040	2024-03-12_b0138e1da5fdb3af970fa9848a2a913c_cryptolocker.exe	28
PID 2040 wrote to memory of 1332	2040	2024-03-12_b0138e1da5fdb3af970fa9848a2a913c_cryptolocker.exe	28
PID 2040 wrote to memory of 1332	2040	2024-03-12_b0138e1da5fdb3af970fa9848a2a913c_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-12_b0138e1da5fdb3af970fa9848a2a913c_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-12_b0138e1da5fdb3af970fa9848a2a913c_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2040
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:1332

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\misid.exe

Filesize
129KB

MD5
34724ba3578489054675934c1d449406

SHA1
6a58dff90aa0bff3c1e639cd4230e8b04f103ba7

SHA256
7cb06bb938db64c3401d91488f2a37cefc09dd16752e6fe38d35dd5b77125b5f

SHA512
0e0c44ff52cee9ab7cfa2f9155910d4196fa629394bc38d4fe8db630450a2bf8c62b0c83f2145c099f2addd1479bccde153f40f933fb1f3da20afeb0d0e0a5ec

Download Submit
memory/1332-15-0x00000000004E0000-0x00000000004E6000-memory.dmp

Filesize
24KB

Download
memory/1332-22-0x00000000004A0000-0x00000000004A6000-memory.dmp

Filesize
24KB

Download
memory/2040-0-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2040-2-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2040-1-0x0000000000290000-0x0000000000296000-memory.dmp

Filesize
24KB

Download