cdb83957bcf4fc8cb2521f2c47c4af3c7b364b3668da2eb887e4620b45fe89a8

Analysis

max time kernel
150s
max time network
154s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
27/03/2024, 03:33

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General

Target

2024-03-27_30bcb1b58a4f94e219eadbb3d5d8c0fc_cryptolocker.exe
Size

54KB
MD5

30bcb1b58a4f94e219eadbb3d5d8c0fc
SHA1

4b363bbfbff79497458fc1ad71be56e031f79cfe
SHA256

cdb83957bcf4fc8cb2521f2c47c4af3c7b364b3668da2eb887e4620b45fe89a8
SHA512

ebd68a16c86b8e57fca8843fa95e86710bcbca00e8109a28e9a690d7200f283740dae683a7fee366385bc6fdb07ed86865e2352b0cb2095bbe64f012b863b07b
SSDEEP

768:bIDOw9UiaCHfjnE0Sfa7ilR0p9u6p4ICNBCXK9XbTbmhTBgo:bIDOw9a0DwitDZzcTG

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x0008000000012262-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2484	lossy.exe

Loads dropped DLL 1 IoCs

pid	Process
2456	2024-03-27_30bcb1b58a4f94e219eadbb3d5d8c0fc_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 2456 wrote to memory of 2484	2456	2024-03-27_30bcb1b58a4f94e219eadbb3d5d8c0fc_cryptolocker.exe	28
PID 2456 wrote to memory of 2484	2456	2024-03-27_30bcb1b58a4f94e219eadbb3d5d8c0fc_cryptolocker.exe	28
PID 2456 wrote to memory of 2484	2456	2024-03-27_30bcb1b58a4f94e219eadbb3d5d8c0fc_cryptolocker.exe	28
PID 2456 wrote to memory of 2484	2456	2024-03-27_30bcb1b58a4f94e219eadbb3d5d8c0fc_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-27_30bcb1b58a4f94e219eadbb3d5d8c0fc_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-27_30bcb1b58a4f94e219eadbb3d5d8c0fc_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2456
- C:\Users\Admin\AppData\Local\Temp\lossy.exe
  "C:\Users\Admin\AppData\Local\Temp\lossy.exe"
  2⤵
  - Executes dropped EXE
  PID:2484

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
54KB

MD5
ade401809163126237d5bda98385c5ec

SHA1
894a625d4f58f343d8eda9abe63f9b553b097f8f

SHA256
3307ee9732d74242304c2f9baf966dc08d2cae10c307261c67be4a2af55176fc

SHA512
f5b7a69691dad80eff869cd4603f790396da5dd95986534afd6057ae111d40bc73f826ef194a64def20661a14daa4ec729f511d63db069bc70aef1867d70a25b

Download Submit
memory/2456-0-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2456-1-0x0000000000330000-0x0000000000336000-memory.dmp

Filesize
24KB

Download
memory/2456-3-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2484-15-0x0000000000380000-0x0000000000386000-memory.dmp

Filesize
24KB

Download
memory/2484-17-0x00000000002D0000-0x00000000002D6000-memory.dmp

Filesize
24KB

Download