7dabf13703c1600ce6a74ba58d597ab7bd672494a24fde1d6fdf077819da244a

Analysis

max time kernel
148s
max time network
150s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
13-03-2024 10:02

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General

Target

2024-03-13_fd2f9b589fc6c9c03d9815069b9c143f_cryptolocker.exe
Size

386KB
MD5

fd2f9b589fc6c9c03d9815069b9c143f
SHA1

d91ee0f0afcd80b064f1871a7eea723393e66c0f
SHA256

7dabf13703c1600ce6a74ba58d597ab7bd672494a24fde1d6fdf077819da244a
SHA512

d47dd5eba31b080d8cd4e3a1764f5789763583323263c4d0e13d64a5f53f580637d6eb6c5d924332facc698e768dadd107887e2faaba07c01cd1dae8bcb0a9d5
SSDEEP

6144:nnOsaQgAOjvrZFODJjBz3j1jTqQy6v2GGnugOtihzXt:nnOflT/ZFIjBz3xjTxynGUOUhXt

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x0009000000014b70-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2932	hasfj.exe

Loads dropped DLL 1 IoCs

pid	Process
1988	2024-03-13_fd2f9b589fc6c9c03d9815069b9c143f_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 1988 wrote to memory of 2932	1988	2024-03-13_fd2f9b589fc6c9c03d9815069b9c143f_cryptolocker.exe	28
PID 1988 wrote to memory of 2932	1988	2024-03-13_fd2f9b589fc6c9c03d9815069b9c143f_cryptolocker.exe	28
PID 1988 wrote to memory of 2932	1988	2024-03-13_fd2f9b589fc6c9c03d9815069b9c143f_cryptolocker.exe	28
PID 1988 wrote to memory of 2932	1988	2024-03-13_fd2f9b589fc6c9c03d9815069b9c143f_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-13_fd2f9b589fc6c9c03d9815069b9c143f_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-13_fd2f9b589fc6c9c03d9815069b9c143f_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1988
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:2932

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
386KB

MD5
42c4ec47bde76bddb93ae08b1fd4cfe5

SHA1
78767903108908c86c5955766b49c026cdb9c8d0

SHA256
23282ca42b4439f57c5490c6243dcde369eb2d376041bed6d2ccebddc34434cb

SHA512
4c5ce809c9af2883aa65d74ff0a9e5d745e6804798e7f954c1414019798de822cb106ff1724d931ac24cbbb396c2f1cecd2f7c6020bfa9b05b35ff0cd9f88a88

Download Submit
memory/1988-0-0x0000000001CE0000-0x0000000001CE6000-memory.dmp

Filesize
24KB

Download
memory/1988-1-0x0000000001CF0000-0x0000000001CF6000-memory.dmp

Filesize
24KB

Download
memory/1988-7-0x0000000001CE0000-0x0000000001CE6000-memory.dmp

Filesize
24KB

Download
memory/2932-15-0x0000000000420000-0x0000000000426000-memory.dmp

Filesize
24KB

Download
memory/2932-18-0x0000000000410000-0x0000000000416000-memory.dmp

Filesize
24KB

Download