1a021fc7970c79acb4205ee3bfb1512e73229a9941f5c2510c4565ce0e34af5c

Analysis

max time kernel
149s
max time network
155s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
24-02-2024 12:07

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General

Target

2024-02-24_fd158e07e6931ab0859eb3b8e4979640_cryptolocker.exe
Size

41KB
MD5

fd158e07e6931ab0859eb3b8e4979640
SHA1

4ef9908ab1a30f3c25836e20b753169f3b398710
SHA256

1a021fc7970c79acb4205ee3bfb1512e73229a9941f5c2510c4565ce0e34af5c
SHA512

e5a39fe03706b04ec29c46e4b3c4b6a48bc7cd6c5e4010640f051d6894e0fb380db7d9ae706840af06f9cdfc39dbebed7f6e60b82e8b28200651734a78bc60d6
SSDEEP

768:bgX4zYcgTEu6QOaryfjqDDw3sCu5b+rc5vVcFJ8K:bgGYcA/53GADw8ClrcTcFJ8K

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000d0000000122ce-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2980	hasfj.exe

Loads dropped DLL 1 IoCs

pid	Process
2028	2024-02-24_fd158e07e6931ab0859eb3b8e4979640_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 2028 wrote to memory of 2980	2028	2024-02-24_fd158e07e6931ab0859eb3b8e4979640_cryptolocker.exe	28
PID 2028 wrote to memory of 2980	2028	2024-02-24_fd158e07e6931ab0859eb3b8e4979640_cryptolocker.exe	28
PID 2028 wrote to memory of 2980	2028	2024-02-24_fd158e07e6931ab0859eb3b8e4979640_cryptolocker.exe	28
PID 2028 wrote to memory of 2980	2028	2024-02-24_fd158e07e6931ab0859eb3b8e4979640_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-24_fd158e07e6931ab0859eb3b8e4979640_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-24_fd158e07e6931ab0859eb3b8e4979640_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2028
- 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
41KB

MD5
a0bf0d6f5f1e344ad1151c2cdf1732fc

SHA1
4638c1c7b7a335905ab8a99035e8d63f4708e26c

SHA256
b8024db488cece1df4f6c5c09ca3e71fcaf75553fea8bcef3c9eeb38a28d6ba8

SHA512
989b57bee1076c5f360d21376c0eb96754a69e6d36e2e0e30bf9f143e9a311755d95e9f2267fd1fd6758bb1d5e7fb7770bd5b13fad9d11db5ac423ee3b8c716a

Download Submit
memory/2028-0-0x0000000000450000-0x0000000000456000-memory.dmp

Filesize
24KB

Download
memory/2028-1-0x0000000000470000-0x0000000000476000-memory.dmp

Filesize
24KB

Download
memory/2028-2-0x0000000000450000-0x0000000000456000-memory.dmp

Filesize
24KB

Download
memory/2980-15-0x0000000001CA0000-0x0000000001CA6000-memory.dmp

Filesize
24KB

Download
memory/2980-17-0x0000000001C80000-0x0000000001C86000-memory.dmp

Filesize
24KB

Download