d7d831687db3380ab62bcadc8224de7e8e853aabeab4c2c5d3636d34a12c478b

Analysis

max time kernel
148s
max time network
149s
platform
windows7_x64
resource
win7-20240220-en
resource tags

arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
submitted
12-05-2024 14:36

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General

Target

2024-05-12_7c34e6fe1f75200a5d11a1bdf2136c38_cryptolocker.exe
Size

44KB
MD5

7c34e6fe1f75200a5d11a1bdf2136c38
SHA1

06f059a5ef08a79606babde0b764c8ceb23e211f
SHA256

d7d831687db3380ab62bcadc8224de7e8e853aabeab4c2c5d3636d34a12c478b
SHA512

8beb668bcd8e941fd26524e2874e41834ef4a42a8d89c17db55357919d16f11d2efe5d9e05a459a3d854254109f47bfbcdf968dc39774cbda3aa4521d83d1af5
SSDEEP

768:b7o/2n1TCraU6GD1a4X0WcO+wMVm+slAMphqs:bc/y2lkF0+Beqs

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000c00000001342e-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2860	rewok.exe

Loads dropped DLL 1 IoCs

pid	Process
2300	2024-05-12_7c34e6fe1f75200a5d11a1bdf2136c38_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
2300	2024-05-12_7c34e6fe1f75200a5d11a1bdf2136c38_cryptolocker.exe
2860	rewok.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2300 wrote to memory of 2860	2300	2024-05-12_7c34e6fe1f75200a5d11a1bdf2136c38_cryptolocker.exe	28
PID 2300 wrote to memory of 2860	2300	2024-05-12_7c34e6fe1f75200a5d11a1bdf2136c38_cryptolocker.exe	28
PID 2300 wrote to memory of 2860	2300	2024-05-12_7c34e6fe1f75200a5d11a1bdf2136c38_cryptolocker.exe	28
PID 2300 wrote to memory of 2860	2300	2024-05-12_7c34e6fe1f75200a5d11a1bdf2136c38_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-12_7c34e6fe1f75200a5d11a1bdf2136c38_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-12_7c34e6fe1f75200a5d11a1bdf2136c38_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2300
- 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:2860

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
44KB

MD5
90b680ad08bccb50b7a344e0b7777363

SHA1
9b3d450fdf1d8ad9224883ecf8aa7cd0d90ee19b

SHA256
0201890505bb6486fe216a638cdbaace02f8c5617c13c198d0f2ac2380ba896a

SHA512
38a597c486a2b576485e364f0c743e1caf650cf489598539d66dcebb5f117c964f6c340209a1933e5e4af567d083bbd22be1d8e0038f0de2831e2a9ffbc9b90e

Download Submit
memory/2300-1-0x00000000004B0000-0x00000000004B6000-memory.dmp

Filesize
24KB

Download
memory/2300-0-0x00000000004B0000-0x00000000004B6000-memory.dmp

Filesize
24KB

Download
memory/2300-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2860-23-0x0000000000390000-0x0000000000396000-memory.dmp

Filesize
24KB

Download