8a705f4367efa2e8968029389c3502615a3c4c93c6bd1fdc1a9a3eadf535efd4

Analysis

max time kernel
149s
max time network
154s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
12/02/2024, 11:22

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General

Target

2024-02-12_00fed71b9bedf5458627465ae698d676_cryptolocker.exe
Size

384KB
MD5

00fed71b9bedf5458627465ae698d676
SHA1

e26298f1e4bc01bc7a92b0def0a311ac25c5a9c7
SHA256

8a705f4367efa2e8968029389c3502615a3c4c93c6bd1fdc1a9a3eadf535efd4
SHA512

e40051b86062e4a6bc603240eb691c8937c36994e7c95dd6b3052999d005f1b75f970a6bc3478ef0918613cb8a3f2109baca77112ce4d2f7313e963bd2a0e1d8
SSDEEP

6144:nnOsaQgAOjvrZFODJjBz3j1jTqQy6v2GGnugOtihzXT:nnOflT/ZFIjBz3xjTxynGUOUhXT

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000a000000012238-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
1112	hasfj.exe

Loads dropped DLL 1 IoCs

pid	Process
2224	2024-02-12_00fed71b9bedf5458627465ae698d676_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 2224 wrote to memory of 1112	2224	2024-02-12_00fed71b9bedf5458627465ae698d676_cryptolocker.exe	28
PID 2224 wrote to memory of 1112	2224	2024-02-12_00fed71b9bedf5458627465ae698d676_cryptolocker.exe	28
PID 2224 wrote to memory of 1112	2224	2024-02-12_00fed71b9bedf5458627465ae698d676_cryptolocker.exe	28
PID 2224 wrote to memory of 1112	2224	2024-02-12_00fed71b9bedf5458627465ae698d676_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-12_00fed71b9bedf5458627465ae698d676_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-12_00fed71b9bedf5458627465ae698d676_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2224
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:1112

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\hasfj.exe

Filesize
384KB

MD5
dfbbf4c7900e178ecddec8fff08f36f9

SHA1
87531c2d50da8567ad765620d2412f65ff9f9534

SHA256
4e7b31d5e4c3d7c8acb4c74640aab9c15c9b19a4c13413c9f2c90ffd36a0079d

SHA512
deadec83b2ce03698cd762d136f7a6b34ad7f8ddf2c01cf6c8369efa0d69f393f079986fc2e6bd5a76de3e43bf610a934ef34b11208b2b36d10ad0ed05a2afbd

Download Submit
memory/1112-16-0x0000000001CE0000-0x0000000001CE6000-memory.dmp

Filesize
24KB

Download
memory/1112-15-0x0000000000290000-0x0000000000296000-memory.dmp

Filesize
24KB

Download
memory/2224-0-0x0000000000360000-0x0000000000366000-memory.dmp

Filesize
24KB

Download
memory/2224-1-0x0000000000590000-0x0000000000596000-memory.dmp

Filesize
24KB

Download
memory/2224-2-0x0000000000360000-0x0000000000366000-memory.dmp

Filesize
24KB

Download