b8dcf63c74ad4cd0b75f290ca03ef697228c22900de56d33c4db4e61b6d1d5b9

Analysis

max time kernel
148s
max time network
149s
platform
windows7_x64
resource
win7-20240215-en
resource tags

arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system
submitted
19/03/2024, 16:30

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General

Target

2024-03-19_23c50ebb8fa7817110893818dd3b29ea_cryptolocker.exe
Size

35KB
MD5

23c50ebb8fa7817110893818dd3b29ea
SHA1

7a91912466f3909924d976410679c6a819449b65
SHA256

b8dcf63c74ad4cd0b75f290ca03ef697228c22900de56d33c4db4e61b6d1d5b9
SHA512

2b61580b7cff3caaeb1f35af3f3d675c55d1c5f5cf303411cb72e9c14841791462798580c38a356ca99ab4ec5ca4f4dea545ac4aeaa21bb232ac78d939fb1017
SSDEEP

384:bmM0V/YPvnr801TRoUGPh4TKt6ATt1DqgPa3s/zzoCt9/B1RU3q4aKCu+:b7o/2n1TCraU6GD1a4Xt9bRU64hC/

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x00090000000122be-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
3000	rewok.exe

Loads dropped DLL 1 IoCs

pid	Process
2488	2024-03-19_23c50ebb8fa7817110893818dd3b29ea_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
2488	2024-03-19_23c50ebb8fa7817110893818dd3b29ea_cryptolocker.exe
3000	rewok.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2488 wrote to memory of 3000	2488	2024-03-19_23c50ebb8fa7817110893818dd3b29ea_cryptolocker.exe	28
PID 2488 wrote to memory of 3000	2488	2024-03-19_23c50ebb8fa7817110893818dd3b29ea_cryptolocker.exe	28
PID 2488 wrote to memory of 3000	2488	2024-03-19_23c50ebb8fa7817110893818dd3b29ea_cryptolocker.exe	28
PID 2488 wrote to memory of 3000	2488	2024-03-19_23c50ebb8fa7817110893818dd3b29ea_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-19_23c50ebb8fa7817110893818dd3b29ea_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-19_23c50ebb8fa7817110893818dd3b29ea_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2488
- 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:3000

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
35KB

MD5
a2f1668c9bef609dca0b5f68cb87de3c

SHA1
647f1c152f906240cfafbc4166150f75b402a295

SHA256
bead387f556536e71e40a1d5c8c03ef4e70455ccb7d99ad0a445eaa7295fe90b

SHA512
e3691d75eb66a56f5d491fa5fcaa2680aca409fefacafda276195e40baf33c1668aa3b8a6caff9ea6c827cd77404174cf86b8e9f745072fc97ea30e87457210e

Download Submit
memory/2488-0-0x0000000000360000-0x0000000000366000-memory.dmp

Filesize
24KB

Download
memory/2488-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2488-8-0x0000000000360000-0x0000000000366000-memory.dmp

Filesize
24KB

Download
memory/3000-23-0x0000000000490000-0x0000000000496000-memory.dmp

Filesize
24KB

Download