0052d2d7393d1fac9555f714f4f798512ef0f30c5a145accc7f8b2c7d432c423

Analysis

max time kernel
150s
max time network
154s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
12-05-2024 20:31

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General

Target

2024-05-12_ac3d2a0b077370cf590a9ec0becd81df_cryptolocker.exe
Size

85KB
MD5

ac3d2a0b077370cf590a9ec0becd81df
SHA1

1df2b6a166fd2cf7253739d65e5bf58e6a3334e1
SHA256

0052d2d7393d1fac9555f714f4f798512ef0f30c5a145accc7f8b2c7d432c423
SHA512

0935175192b44ad932b47f5df82be1fb264acdd7036f6a51f5989ac03a5f73210da7c52c313f9d6045fa3076bd7ff23facbbfd7e20f6e0986fbc893a21ae4e64
SSDEEP

1536:Tj+jsMQMOtEvwDpj5HmpJpOUHECgNMo0vp2EMMrCsq:TCjsIOtEvwDpj5HE/OUHnSMO

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

resource	yara_rule
behavioral1/memory/2696-0-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2696-14-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000d0000000122d1-15.dat	CryptoLocker_rule2
behavioral1/memory/2540-16-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2540-26-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 5 IoCs

resource	yara_rule
behavioral1/memory/2696-0-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2696-14-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000d0000000122d1-15.dat	CryptoLocker_set1
behavioral1/memory/2540-16-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2540-26-0x0000000000500000-0x000000000050E000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2540	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
2696	2024-05-12_ac3d2a0b077370cf590a9ec0becd81df_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 2696 wrote to memory of 2540	2696	2024-05-12_ac3d2a0b077370cf590a9ec0becd81df_cryptolocker.exe	28
PID 2696 wrote to memory of 2540	2696	2024-05-12_ac3d2a0b077370cf590a9ec0becd81df_cryptolocker.exe	28
PID 2696 wrote to memory of 2540	2696	2024-05-12_ac3d2a0b077370cf590a9ec0becd81df_cryptolocker.exe	28
PID 2696 wrote to memory of 2540	2696	2024-05-12_ac3d2a0b077370cf590a9ec0becd81df_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-12_ac3d2a0b077370cf590a9ec0becd81df_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-12_ac3d2a0b077370cf590a9ec0becd81df_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2696
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:2540

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

C:\Users\Admin\AppData\Local\Temp\misid.exe

Filesize
85KB

MD5
c4ec1e40d0da4440758674f97a101951

SHA1
066a4cae4f2e52686a8804c0381f3158fa9176fb

SHA256
9659d13be0b6935cd4bcdc17848c06fec3cf825419bc804e9363d67aeb84dfeb

SHA512
70dd00b4e60e580e287c45990347e74c6d89379af38ed5c642177abeed2d06edaa170bdce352d30b1f6ba70e5eb9a0a1cbd8e31d3d63eaa3564ae2c1fcd0a428

Download Submit
memory/2540-16-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download
memory/2540-18-0x00000000003F0000-0x00000000003F6000-memory.dmp

Filesize
24KB

Download
memory/2540-25-0x00000000003C0000-0x00000000003C6000-memory.dmp

Filesize
24KB

Download
memory/2540-26-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download
memory/2696-0-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download
memory/2696-1-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2696-9-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2696-2-0x0000000000270000-0x0000000000276000-memory.dmp

Filesize
24KB

Download
memory/2696-14-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download