10d791b3051a251ebe0ca7d7852cb8123ebc9d343b7fb3d41bb321fdff5050e3

Analysis

max time kernel
150s
max time network
150s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
05/03/2024, 12:59

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General

Target

2024-03-05_dc9f501a13c4ca4ad08fb4c6889a6a38_cryptolocker.exe
Size

47KB
MD5

dc9f501a13c4ca4ad08fb4c6889a6a38
SHA1

24206dbfe738148802339484d50cd80db8df05dd
SHA256

10d791b3051a251ebe0ca7d7852cb8123ebc9d343b7fb3d41bb321fdff5050e3
SHA512

1ee74f7c6df0b5e55a363a27be8a9d23a754baa969b87783f1c0b1c020d3e6f638a8686a1a1720cc7cb3bdedaa7f3dbb67f71c24aed7ed44812bae0f473991cc
SSDEEP

768:UEEmoQDj/xnMp+yptndwe/PWQtOOtEvwDpjIm8z2iaSIO/WZrEu/d+qmsUHQ1wsz:ZzFbxmLPWQMOtEvwDpj386Sj/WprqQ1N

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b000000012256-11.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2620	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
2756	2024-03-05_dc9f501a13c4ca4ad08fb4c6889a6a38_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 2756 wrote to memory of 2620	2756	2024-03-05_dc9f501a13c4ca4ad08fb4c6889a6a38_cryptolocker.exe	28
PID 2756 wrote to memory of 2620	2756	2024-03-05_dc9f501a13c4ca4ad08fb4c6889a6a38_cryptolocker.exe	28
PID 2756 wrote to memory of 2620	2756	2024-03-05_dc9f501a13c4ca4ad08fb4c6889a6a38_cryptolocker.exe	28
PID 2756 wrote to memory of 2620	2756	2024-03-05_dc9f501a13c4ca4ad08fb4c6889a6a38_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-05_dc9f501a13c4ca4ad08fb4c6889a6a38_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-05_dc9f501a13c4ca4ad08fb4c6889a6a38_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2756
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:2620

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
47KB

MD5
b417024f012c2b012616fc66e3584985

SHA1
d0053553321f597d1d60f63d3a5fb1571b0f3966

SHA256
89420784723fc16fc9ec7a3f59949491feb80c3220c59d1545b457bb26933ee3

SHA512
79324e7dcd3bc3bb9d8cd93235dba6aac4c431c4ca330295e1d5d97f96b65d97c8179c8dd657d57905f4eebf9031c8619604e03721fecb28741f70c458b2b76a

Download Submit
memory/2620-15-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2620-17-0x0000000000460000-0x0000000000466000-memory.dmp

Filesize
24KB

Download
memory/2756-0-0x0000000000230000-0x0000000000233000-memory.dmp

Filesize
12KB

Download
memory/2756-1-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2756-3-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2756-2-0x0000000000310000-0x0000000000316000-memory.dmp

Filesize
24KB

Download