3271f213ec3fdda0d06e8b1c29afbe296bce5cc575d3db7a73404c77ae0a80f5

Analysis

max time kernel
149s
max time network
150s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
28/03/2024, 19:49

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General

Target

2024-03-28_38c96a18bdc51b28453f78a1878b47c4_cryptolocker.exe
Size

40KB
MD5

38c96a18bdc51b28453f78a1878b47c4
SHA1

69288e00d5ef34ecbda0d3691aecbc3b0f226161
SHA256

3271f213ec3fdda0d06e8b1c29afbe296bce5cc575d3db7a73404c77ae0a80f5
SHA512

f37d4ceef3a7928d03b9bb9d2d0472955e6300534c03e5c0caecefd8cb686881e814430373d0110cf55e377eb2b4a49da1e6977b484d3ecf227ff358d1085ff0
SSDEEP

768:bCDOw9UiaKHfjnD0S16avdrQFiLjJvtAIh:bCDOw9aMDooc+vAk

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 6 IoCs

resource	yara_rule
behavioral1/memory/2112-1-0x0000000008000000-0x000000000800A000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000e000000012248-11.dat	CryptoLocker_rule2
behavioral1/memory/2112-12-0x0000000002310000-0x000000000231A000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2112-16-0x0000000008000000-0x000000000800A000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2984-18-0x0000000008000000-0x000000000800A000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2984-27-0x0000000008000000-0x000000000800A000-memory.dmp	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2984	lossy.exe

Loads dropped DLL 1 IoCs

pid	Process
2112	2024-03-28_38c96a18bdc51b28453f78a1878b47c4_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 2112 wrote to memory of 2984	2112	2024-03-28_38c96a18bdc51b28453f78a1878b47c4_cryptolocker.exe	28
PID 2112 wrote to memory of 2984	2112	2024-03-28_38c96a18bdc51b28453f78a1878b47c4_cryptolocker.exe	28
PID 2112 wrote to memory of 2984	2112	2024-03-28_38c96a18bdc51b28453f78a1878b47c4_cryptolocker.exe	28
PID 2112 wrote to memory of 2984	2112	2024-03-28_38c96a18bdc51b28453f78a1878b47c4_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-28_38c96a18bdc51b28453f78a1878b47c4_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-28_38c96a18bdc51b28453f78a1878b47c4_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2112
- C:\Users\Admin\AppData\Local\Temp\lossy.exe
  "C:\Users\Admin\AppData\Local\Temp\lossy.exe"
  2⤵
  - Executes dropped EXE
  PID:2984

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
40KB

MD5
a3f5f04955302620e2dd15598376de75

SHA1
bb8f1c3123b8e7f00ac85b76ca1e52aca3eae6fa

SHA256
cb33f1ccad926a0c5f815cfecc9483f9ba5895e26f9035b7b4c52356127b5521

SHA512
98b9b2ad038c79afbb9b9c4374140cbea4b3cde032dbd3e458f08d441eada64b8149e180bdbfb2b9017beb67ed611b575a8f314bcb4f3c59c76fecc5a00fc025

Download Submit
memory/2112-0-0x0000000000230000-0x0000000000236000-memory.dmp

Filesize
24KB

Download
memory/2112-2-0x0000000000270000-0x0000000000276000-memory.dmp

Filesize
24KB

Download
memory/2112-3-0x0000000000230000-0x0000000000236000-memory.dmp

Filesize
24KB

Download
memory/2112-1-0x0000000008000000-0x000000000800A000-memory.dmp

Filesize
40KB

Download
memory/2112-12-0x0000000002310000-0x000000000231A000-memory.dmp

Filesize
40KB

Download
memory/2112-16-0x0000000008000000-0x000000000800A000-memory.dmp

Filesize
40KB

Download
memory/2984-18-0x0000000008000000-0x000000000800A000-memory.dmp

Filesize
40KB

Download
memory/2984-19-0x0000000000290000-0x0000000000296000-memory.dmp

Filesize
24KB

Download
memory/2984-23-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2984-27-0x0000000008000000-0x000000000800A000-memory.dmp

Filesize
40KB

Download