bb58537367ab381abe58d5c50a0687ad5c3ceca2cd4065bbbd8ff0f41c5df49c

Analysis

max time kernel
149s
max time network
153s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
25-01-2024 17:26

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General

Target

2024-01-25_3c24e5335e5e86b0856acde56d82ed5e_cryptolocker.exe
Size

73KB
MD5

3c24e5335e5e86b0856acde56d82ed5e
SHA1

fbf4143abc63fd93c2c2009f35070afc10e2fb57
SHA256

bb58537367ab381abe58d5c50a0687ad5c3ceca2cd4065bbbd8ff0f41c5df49c
SHA512

6b3872442870fdcaf1cdfc2e78b37ef85a5bd5eb11682d20baa48db324b7c3a663bcab94d6b044000beaa88efe5483b7c77d50b16cd0fa2cb28a7c6a2aaaac02
SSDEEP

1536:X6QFElP6n+gJQMOtEvwDpjBZYTjipvF2bx1sdf:X6a+SOtEvwDpjBZYvQd2q

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x0008000000012248-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x0008000000012248-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2316	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2208	2024-01-25_3c24e5335e5e86b0856acde56d82ed5e_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 2208 wrote to memory of 2316	2208	2024-01-25_3c24e5335e5e86b0856acde56d82ed5e_cryptolocker.exe	28
PID 2208 wrote to memory of 2316	2208	2024-01-25_3c24e5335e5e86b0856acde56d82ed5e_cryptolocker.exe	28
PID 2208 wrote to memory of 2316	2208	2024-01-25_3c24e5335e5e86b0856acde56d82ed5e_cryptolocker.exe	28
PID 2208 wrote to memory of 2316	2208	2024-01-25_3c24e5335e5e86b0856acde56d82ed5e_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-01-25_3c24e5335e5e86b0856acde56d82ed5e_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-25_3c24e5335e5e86b0856acde56d82ed5e_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2208
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2316

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\asih.exe

Filesize
73KB

MD5
342656167bda97fa040b62f78ce2ed8d

SHA1
983b8949469974f34b74a4f5218f8a21d4136b58

SHA256
194cec0f22ebfd26a1c28681069075b3a0ec0bbbf98d8714991ffc4e00e7099d

SHA512
82c6cf306af15647cedace0fdf6da04d1ebca88208343e480d98ed333876370f67828342da60e9fbb0dc498106c6b5f391ea8bb7b8cc135b145636e6f67aea9c

Download Submit
memory/2208-0-0x0000000000250000-0x0000000000256000-memory.dmp

Filesize
24KB

Download
memory/2208-1-0x00000000004E0000-0x00000000004E6000-memory.dmp

Filesize
24KB

Download
memory/2208-2-0x0000000000250000-0x0000000000256000-memory.dmp

Filesize
24KB

Download
memory/2316-16-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/2316-15-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download