77d719d4a6aa3a0a765c244628da6624a2c3cae5c6bf75f7f1298bdfb2690271

Analysis

max time kernel
150s
max time network
153s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
16/04/2024, 16:41

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General

Target

2024-04-16_f080820842a8a5fb2500cd05d9d38258_cryptolocker.exe
Size

53KB
MD5

f080820842a8a5fb2500cd05d9d38258
SHA1

a91cf37d16c8775aef20cec8ff357469be0f28cc
SHA256

77d719d4a6aa3a0a765c244628da6624a2c3cae5c6bf75f7f1298bdfb2690271
SHA512

5c4d876d8df8523809b51eba0605228851b579945bb19df324c3120a7749dae2d6dcbc1626a80930973a5e51945aad91771980cb6c4ad557532c78f2c4b95987
SSDEEP

768:bIDOw9UiaCHfjnE0Sfa7ilR0p9u6p4ICNBCXK9XbTb8pug:bIDOw9a0DwitDZzcTLg

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000a00000001223f-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2596	lossy.exe

Loads dropped DLL 1 IoCs

pid	Process
1168	2024-04-16_f080820842a8a5fb2500cd05d9d38258_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 1168 wrote to memory of 2596	1168	2024-04-16_f080820842a8a5fb2500cd05d9d38258_cryptolocker.exe	28
PID 1168 wrote to memory of 2596	1168	2024-04-16_f080820842a8a5fb2500cd05d9d38258_cryptolocker.exe	28
PID 1168 wrote to memory of 2596	1168	2024-04-16_f080820842a8a5fb2500cd05d9d38258_cryptolocker.exe	28
PID 1168 wrote to memory of 2596	1168	2024-04-16_f080820842a8a5fb2500cd05d9d38258_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-16_f080820842a8a5fb2500cd05d9d38258_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-16_f080820842a8a5fb2500cd05d9d38258_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1168
- C:\Users\Admin\AppData\Local\Temp\lossy.exe
  "C:\Users\Admin\AppData\Local\Temp\lossy.exe"
  2⤵
  - Executes dropped EXE
  PID:2596

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
b825477bf2b94113dbcbc1c06a49bb84

SHA1
5364c74f5042de490abc24fba4d43b57b9de473f

SHA256
0fed9e41c990d7302b3f25f40c78d9d5ea81954cdd7acb142c12d3b8f1112ce8

SHA512
b604bc1344494a814a823fe7e37a48cee375cffbdcd2e56b0397e749f0d2677e372c9f9892827eb881789430ddf6514070c31bc44272f2c9f7adbb439e78cc41

Download Submit
memory/1168-0-0x0000000000520000-0x0000000000526000-memory.dmp

Filesize
24KB

Download
memory/1168-1-0x0000000000550000-0x0000000000556000-memory.dmp

Filesize
24KB

Download
memory/1168-2-0x0000000000520000-0x0000000000526000-memory.dmp

Filesize
24KB

Download
memory/2596-15-0x0000000000420000-0x0000000000426000-memory.dmp

Filesize
24KB

Download
memory/2596-16-0x0000000001C80000-0x0000000001C86000-memory.dmp

Filesize
24KB

Download