2cc0ec5e5b82763610701847769e637bfbbbdc2a9254341ddc7d50aaaacd3c5f

Analysis

max time kernel
148s
max time network
149s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
27-01-2024 08:28

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General

Target

2024-01-27_5db4deb042337f543fdf7deccee0ef4b_cryptolocker.exe
Size

41KB
MD5

5db4deb042337f543fdf7deccee0ef4b
SHA1

4d2b416acf1a64f1d0534a5b604e4fc64aca9299
SHA256

2cc0ec5e5b82763610701847769e637bfbbbdc2a9254341ddc7d50aaaacd3c5f
SHA512

c1ad54fd2ac19f665bc8e0075fe8abd5fafb462f671b995a0b06abdf76d1fe0415a8fa42af69d9ea70a420267c27746a22cc83273279e7538feee265b25d4a3d
SSDEEP

768:b7o/2n1TCraU6GD1a4X0WcO+wMVm+slAMRqT:bc/y2lkF0+BjT

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000c000000012327-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2208	rewok.exe

Loads dropped DLL 1 IoCs

pid	Process
2060	2024-01-27_5db4deb042337f543fdf7deccee0ef4b_cryptolocker.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious use of UnmapMainImage 2 IoCs

pid	Process
2060	2024-01-27_5db4deb042337f543fdf7deccee0ef4b_cryptolocker.exe
2208	rewok.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2060 wrote to memory of 2208	2060	2024-01-27_5db4deb042337f543fdf7deccee0ef4b_cryptolocker.exe	28
PID 2060 wrote to memory of 2208	2060	2024-01-27_5db4deb042337f543fdf7deccee0ef4b_cryptolocker.exe	28
PID 2060 wrote to memory of 2208	2060	2024-01-27_5db4deb042337f543fdf7deccee0ef4b_cryptolocker.exe	28
PID 2060 wrote to memory of 2208	2060	2024-01-27_5db4deb042337f543fdf7deccee0ef4b_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-01-27_5db4deb042337f543fdf7deccee0ef4b_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-27_5db4deb042337f543fdf7deccee0ef4b_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2060
- C:\Users\Admin\AppData\Local\Temp\rewok.exe
  "C:\Users\Admin\AppData\Local\Temp\rewok.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of UnmapMainImage
  PID:2208

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\rewok.exe

Filesize
41KB

MD5
44ee0983dbac5ee87a5ccbed0edd4f4a

SHA1
cf28fc7551370d5be499488cc36a30f0ab4813c9

SHA256
88d5d32e120c06befdca8216a497f0358d07a4f73c1de46125fbeffb6882456e

SHA512
a44a8d25a82cc02e924a88027d8b76d0af4115f66541aa0f1587cd3a46daccd343435b32793e2c3d455ec7e312af41933c8bf6a9e6c1dcccc0685f122f406f10

Download Submit
memory/2060-0-0x0000000000390000-0x0000000000396000-memory.dmp

Filesize
24KB

Download
memory/2060-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2060-8-0x0000000000390000-0x0000000000396000-memory.dmp

Filesize
24KB

Download
memory/2208-17-0x00000000003E0000-0x00000000003E6000-memory.dmp

Filesize
24KB

Download