a2bc944e3818e500a1d4fcbd213ca7cd6193f04448e6ced538fa344ee0a3edbe

Analysis

max time kernel
149s
max time network
150s
platform
windows7_x64
resource
win7-20240508-en
resource tags

arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
submitted
03/06/2024, 03:37

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General

Target

2024-06-03_48638d1b7b3340b8e305a1f5a3ca5d3a_cryptolocker.exe
Size

78KB
MD5

48638d1b7b3340b8e305a1f5a3ca5d3a
SHA1

b7d780fc2eb8eb40980f925952633e9ddb62acf3
SHA256

a2bc944e3818e500a1d4fcbd213ca7cd6193f04448e6ced538fa344ee0a3edbe
SHA512

86b45135e28bb9c8f90250d3b5368b6808b6ac22aacd8cf1846ec9b9a738881c9d1f9c8daee23550c91875c5938e0150a38d4295571854ca1a27ef1d65b476e6
SSDEEP

1536:vj+jsMQMOtEvwDpj5HwYYTjipvF2hBfIufXi:vCjsIOtEvwDpj5H9YvQd2u

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x001000000001226b-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x001000000001226b-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2896	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
2188	2024-06-03_48638d1b7b3340b8e305a1f5a3ca5d3a_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 2188 wrote to memory of 2896	2188	2024-06-03_48638d1b7b3340b8e305a1f5a3ca5d3a_cryptolocker.exe	28
PID 2188 wrote to memory of 2896	2188	2024-06-03_48638d1b7b3340b8e305a1f5a3ca5d3a_cryptolocker.exe	28
PID 2188 wrote to memory of 2896	2188	2024-06-03_48638d1b7b3340b8e305a1f5a3ca5d3a_cryptolocker.exe	28
PID 2188 wrote to memory of 2896	2188	2024-06-03_48638d1b7b3340b8e305a1f5a3ca5d3a_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-06-03_48638d1b7b3340b8e305a1f5a3ca5d3a_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-03_48638d1b7b3340b8e305a1f5a3ca5d3a_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2188
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:2896

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
78KB

MD5
0e545bd8f19108a964fd86ecece88348

SHA1
f97aedd2540d4d443a70958687b22a380c61867f

SHA256
4afe67f04cc20bc7991a4fc4dd1b0f07cf8c2e13c9487ea0f19bfd6b192da2dd

SHA512
b41621cb6bf46839507dbba70f7183bc2a1eb2adee34cc7fdf5d580ac467e2e17f3fac7efe355e55e7a15c12cf1f44fa99d2101ab05d3e20ddafdaf4e3a28a0a

Download Submit
memory/2188-0-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2188-1-0x0000000000480000-0x0000000000486000-memory.dmp

Filesize
24KB

Download
memory/2188-8-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2896-15-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2896-16-0x0000000000290000-0x0000000000296000-memory.dmp

Filesize
24KB

Download