fc4a6d6ffd8c804ca15f2c22541c2e606b67739803611e47990dde023c2544af

Analysis

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

arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
submitted
21/02/2024, 20:02

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General

Target

2024-02-21_e8974941966d70d535c208213c04ab8e_cryptolocker.exe
Size

47KB
MD5

e8974941966d70d535c208213c04ab8e
SHA1

1eae1d1d4123e4eb54c8a049176d4609ea75c997
SHA256

fc4a6d6ffd8c804ca15f2c22541c2e606b67739803611e47990dde023c2544af
SHA512

cb54b45bd2d54a53408ca04750528672b49f717a1dbc34b391e39d28a50e396081f2800ae6449d209f6b067b661137b987595802671d965b09a98bccdd843254
SSDEEP

768:bgX4zYcgTEu6QOaryfjqDlC6JFbK37YbDu5z/hLVdz:bgGYcA/53GAA6y37nbB5

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b000000012251-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2980	hasfj.exe

Loads dropped DLL 1 IoCs

pid	Process
2316	2024-02-21_e8974941966d70d535c208213c04ab8e_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 2316 wrote to memory of 2980	2316	2024-02-21_e8974941966d70d535c208213c04ab8e_cryptolocker.exe	28
PID 2316 wrote to memory of 2980	2316	2024-02-21_e8974941966d70d535c208213c04ab8e_cryptolocker.exe	28
PID 2316 wrote to memory of 2980	2316	2024-02-21_e8974941966d70d535c208213c04ab8e_cryptolocker.exe	28
PID 2316 wrote to memory of 2980	2316	2024-02-21_e8974941966d70d535c208213c04ab8e_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-21_e8974941966d70d535c208213c04ab8e_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-21_e8974941966d70d535c208213c04ab8e_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2316
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:2980

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
47KB

MD5
35b930906ff61b4533fa1ba032fd2882

SHA1
e865b5c4ac6f35a675cf7bb958a1441dfa3f5bef

SHA256
0f7589792a778c738bf20e16230155666a36cd6529a7dcc2246b5dee3c538e32

SHA512
b9e1defe4e71f664280756d8025543e63018bbd9eb1ca0196e50cf6eda8d827ebafb41677a11861b63c494d1b340304c0b28f957597400f3b22bc0a8bdd5b6be

Download Submit
memory/2316-0-0x00000000003A0000-0x00000000003A6000-memory.dmp

Filesize
24KB

Download
memory/2316-1-0x00000000003B0000-0x00000000003B6000-memory.dmp

Filesize
24KB

Download
memory/2316-8-0x00000000003A0000-0x00000000003A6000-memory.dmp

Filesize
24KB

Download
memory/2980-15-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/2980-22-0x0000000000310000-0x0000000000316000-memory.dmp

Filesize
24KB

Download