f1009c63c3f1edb9685face3ea4177c584a53e8942c72c5eaaf3a8225a721b8a

Analysis

max time kernel
147s
max time network
148s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
28/02/2024, 05:33

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General

Target

2024-02-28_d1da81770f1004b07a09913e312c198d_cryptolocker.exe
Size

43KB
MD5

d1da81770f1004b07a09913e312c198d
SHA1

1bf7526348be54ee04e59ca99d7a4817a46e1889
SHA256

f1009c63c3f1edb9685face3ea4177c584a53e8942c72c5eaaf3a8225a721b8a
SHA512

88f7383dfc57b8280a7ed7a334505368c8754801a4d70eab776d92a061633d8a88dcee1f9cecac1f6f7e058ed204a557a31cece49115df46867f4c43346b5384
SSDEEP

768:b7o/2n1TCraU6GD1a4Xcn62TUdcuQlqJ51mwojQ:bc/y2lm6Y0AqJ51mwojQ

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b00000001332e-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
3016	rewok.exe

Loads dropped DLL 1 IoCs

pid	Process
2184	2024-02-28_d1da81770f1004b07a09913e312c198d_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
2184	2024-02-28_d1da81770f1004b07a09913e312c198d_cryptolocker.exe
3016	rewok.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2184 wrote to memory of 3016	2184	2024-02-28_d1da81770f1004b07a09913e312c198d_cryptolocker.exe	28
PID 2184 wrote to memory of 3016	2184	2024-02-28_d1da81770f1004b07a09913e312c198d_cryptolocker.exe	28
PID 2184 wrote to memory of 3016	2184	2024-02-28_d1da81770f1004b07a09913e312c198d_cryptolocker.exe	28
PID 2184 wrote to memory of 3016	2184	2024-02-28_d1da81770f1004b07a09913e312c198d_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-28_d1da81770f1004b07a09913e312c198d_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-28_d1da81770f1004b07a09913e312c198d_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2184
- 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:3016

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
43KB

MD5
17136c67928f110175865eb7e3462824

SHA1
5ac58a017e88f976cb126d81e5281dab5a6ed447

SHA256
d71fd2e3962adcd9b9188d6bd4418c67f08d64426e2fbb8bd3f9d404643f7131

SHA512
41d462612eca7284d8f8ebeca0098e24d52fb76c716c5b1954cf8932718201612164b13fe4e2de2b766e1be1f157cddaed9447f81583c1b9ea83048fda122318

Download Submit
memory/2184-0-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/2184-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2184-8-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/3016-17-0x0000000000490000-0x0000000000496000-memory.dmp

Filesize
24KB

Download