e3fc2f869c876ec1aa3901850157f8385cd8f2bf348e075f710ac269920a3a89

Analysis

max time kernel
133s
max time network
143s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
26-03-2024 05:57

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General

Target

2024-03-26_f2c6883895b92ab98185477c1f155131_cryptolocker.exe
Size

53KB
MD5

f2c6883895b92ab98185477c1f155131
SHA1

a9f1024b9222a0c6ac528ce8cce40ab24371838b
SHA256

e3fc2f869c876ec1aa3901850157f8385cd8f2bf348e075f710ac269920a3a89
SHA512

a4cb3374089797f21a5cff23c7469d781e7dbac9be786fde0cfd758f2b1fabf3a397dfd65175c19fa0b55a8b24f09901b9db510f70e428b6b359115706ce615b
SSDEEP

768:vQz7yVEhs9+js1SQtOOtEvwDpjz9+4hdCW1nw71TkhsiPn1YFv0itHg:vj+jsMQMOtEvwDpj5HH1nw73KOFsiNg

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000d00000000e655-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000d00000000e655-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2504	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
3048	2024-03-26_f2c6883895b92ab98185477c1f155131_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 3048 wrote to memory of 2504	3048	2024-03-26_f2c6883895b92ab98185477c1f155131_cryptolocker.exe	28
PID 3048 wrote to memory of 2504	3048	2024-03-26_f2c6883895b92ab98185477c1f155131_cryptolocker.exe	28
PID 3048 wrote to memory of 2504	3048	2024-03-26_f2c6883895b92ab98185477c1f155131_cryptolocker.exe	28
PID 3048 wrote to memory of 2504	3048	2024-03-26_f2c6883895b92ab98185477c1f155131_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-26_f2c6883895b92ab98185477c1f155131_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-26_f2c6883895b92ab98185477c1f155131_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:3048
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:2504

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
54KB

MD5
2b22b8ff863ff4ad6ee311c18333dca3

SHA1
27c040aaaf9b0136fb4b1cd3cbe48b4f2e09b4e7

SHA256
6feb036264735050e2ff2ef9f31f2403e4641ddd0b9add7be0def13e79f31538

SHA512
15c7279be2b02d8bb65aaedeb053ca50a13af66c12b2af207823345700ea0d7ac25b08c6ea96d13e1b5fba169b4b3a59a2c3a90a90e1e4def92ecde4a1bd5f2d

Download Submit
memory/2504-15-0x0000000000390000-0x0000000000396000-memory.dmp

Filesize
24KB

Download
memory/2504-16-0x0000000000360000-0x0000000000366000-memory.dmp

Filesize
24KB

Download
memory/3048-0-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/3048-2-0x0000000000270000-0x0000000000276000-memory.dmp

Filesize
24KB

Download
memory/3048-1-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download