348fbf7a519ef616b70fe4f6fa5e840921073d7f8594f878945b155f5dbb62e8

Analysis

max time kernel
148s
max time network
149s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
26/03/2024, 16:41

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General

Target

2024-03-26_83091e06046e41e4ab4a0c6d4e6a003e_cryptolocker.exe
Size

59KB
MD5

83091e06046e41e4ab4a0c6d4e6a003e
SHA1

bf693950f6264316c4345b0b8924a8c96c7604ae
SHA256

348fbf7a519ef616b70fe4f6fa5e840921073d7f8594f878945b155f5dbb62e8
SHA512

3d6ac9e863b39b1c7f8bbb0653fb97211b44dfb7bd5c4483ebf3cf66e852f3ccb0cf6578d0e30165714d9553c19682da2eed9d8b04878949fcb53a24d0005595
SSDEEP

768:V6LsoEEeegiZPvEhHSG+gDYQtOOtEvwDpj/MLa5VccPt547/2VoU:V6QFElP6n+gMQMOtEvwDpjyaLccVCb2

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000e000000012248-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000e000000012248-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
3024	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2276	2024-03-26_83091e06046e41e4ab4a0c6d4e6a003e_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 2276 wrote to memory of 3024	2276	2024-03-26_83091e06046e41e4ab4a0c6d4e6a003e_cryptolocker.exe	28
PID 2276 wrote to memory of 3024	2276	2024-03-26_83091e06046e41e4ab4a0c6d4e6a003e_cryptolocker.exe	28
PID 2276 wrote to memory of 3024	2276	2024-03-26_83091e06046e41e4ab4a0c6d4e6a003e_cryptolocker.exe	28
PID 2276 wrote to memory of 3024	2276	2024-03-26_83091e06046e41e4ab4a0c6d4e6a003e_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-26_83091e06046e41e4ab4a0c6d4e6a003e_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-26_83091e06046e41e4ab4a0c6d4e6a003e_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2276
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:3024

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
59KB

MD5
999ad11d89a3227511728cf24575adf6

SHA1
067214537ce01100ad2c5315850522db02de635e

SHA256
7fc5ca8f2f88f7460cee1885a56f0bda96e8d2de7c18aeadfe7f10f4cb1fe73d

SHA512
96f1729f3742fe39948a678c7a284fc903bf9de26b6aa5649302f7d4d53f890fdae9b11a0ecf1b140491dd7c2c388224ed85e97441e0c1ada7400ce6e200a867

Download Submit
memory/2276-0-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2276-1-0x0000000000380000-0x0000000000386000-memory.dmp

Filesize
24KB

Download
memory/2276-8-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/3024-15-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download