c779c376a03af60dad1c208d59418b79a069c131180add43ca9d90db4ca72c4a

Analysis

max time kernel
149s
max time network
151s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
10/06/2024, 21:34

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General

Target

2024-06-10_751aaa2c602832706dcbb05e6df949b6_cryptolocker.exe
Size

45KB
MD5

751aaa2c602832706dcbb05e6df949b6
SHA1

6fc2eccbca870ceb695b6f77fc25ae6254804f8e
SHA256

c779c376a03af60dad1c208d59418b79a069c131180add43ca9d90db4ca72c4a
SHA512

3c9fb905ef24bc1a6a6025654c95d3e444d6c8e06d0347873fe8551983bfcad4cb9c25302ffc5de4353ff216a008c1fc9f9d0c55ba0eea799fa424414b58e194
SSDEEP

768:bCDOw9UiaKHfjnD0S16avdrQFiLjJvtAIie0LHuP:bCDOw9aMDooc+vAlXE

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 4 IoCs

resource	yara_rule
behavioral1/memory/2792-0-0x0000000008000000-0x000000000800A000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000e000000013420-11.dat	CryptoLocker_rule2
behavioral1/memory/2792-16-0x0000000008000000-0x000000000800A000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2236-26-0x0000000008000000-0x000000000800A000-memory.dmp	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2236	lossy.exe

Loads dropped DLL 1 IoCs

pid	Process
2792	2024-06-10_751aaa2c602832706dcbb05e6df949b6_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 2792 wrote to memory of 2236	2792	2024-06-10_751aaa2c602832706dcbb05e6df949b6_cryptolocker.exe	28
PID 2792 wrote to memory of 2236	2792	2024-06-10_751aaa2c602832706dcbb05e6df949b6_cryptolocker.exe	28
PID 2792 wrote to memory of 2236	2792	2024-06-10_751aaa2c602832706dcbb05e6df949b6_cryptolocker.exe	28
PID 2792 wrote to memory of 2236	2792	2024-06-10_751aaa2c602832706dcbb05e6df949b6_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-06-10_751aaa2c602832706dcbb05e6df949b6_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-10_751aaa2c602832706dcbb05e6df949b6_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2792
- C:\Users\Admin\AppData\Local\Temp\lossy.exe
  "C:\Users\Admin\AppData\Local\Temp\lossy.exe"
  2⤵
  - Executes dropped EXE
  PID:2236

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\lossy.exe

Filesize
45KB

MD5
6c01c81288a81cd214d9d8be115ca679

SHA1
c8706e64c6240a05aadd5a069ad7fc9af960dc5c

SHA256
3bc1d076d796840e0bd2da5dd4c6931ad670b2cdfa18f2c67717cf9e71bc59dd

SHA512
8869389c4b8e39c6d9af69418b6923d60ce7581c4ce1ce67c5440b728fdbff8c7d642f15964efd8a610db1322a8863f14573fb7496b1a19d30074b30a50dd3df

Download Submit
memory/2236-18-0x0000000000560000-0x0000000000566000-memory.dmp

Filesize
24KB

Download
memory/2236-25-0x0000000000520000-0x0000000000526000-memory.dmp

Filesize
24KB

Download
memory/2236-26-0x0000000008000000-0x000000000800A000-memory.dmp

Filesize
40KB

Download
memory/2792-0-0x0000000008000000-0x000000000800A000-memory.dmp

Filesize
40KB

Download
memory/2792-1-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/2792-2-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/2792-3-0x0000000000350000-0x0000000000356000-memory.dmp

Filesize
24KB

Download
memory/2792-16-0x0000000008000000-0x000000000800A000-memory.dmp

Filesize
40KB

Download
memory/2792-14-0x0000000002BB0000-0x0000000002BBA000-memory.dmp

Filesize
40KB

Download