22e172e2764c1490224578effd8bbb838157f7bc0025d0a0782addfff9f3acc0

Analysis

max time kernel
148s
max time network
154s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
23/05/2024, 18:08

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General

Target

2024-05-23_584cd1ddf903d4f24086362ec83656d9_cryptolocker.exe
Size

56KB
MD5

584cd1ddf903d4f24086362ec83656d9
SHA1

d0098439908b789b556085cc0fe8fd7a418e41aa
SHA256

22e172e2764c1490224578effd8bbb838157f7bc0025d0a0782addfff9f3acc0
SHA512

14472576700cbb97c1417dd423a9c40dca08fd1b32d1452c6ba7a2ad69fbe88ea048c0ac7d7e1d84dc78fbc832b38540116dc13f946dd84ad41cb8b927573270
SSDEEP

768:bIDOw9UiaCHfjnE0Sfa7ilR0p9u6p4ICNBCXK9XbTb8puI7:bIDOw9a0DwitDZzcTLI7

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b000000014aec-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
1760	lossy.exe

Loads dropped DLL 1 IoCs

pid	Process
1928	2024-05-23_584cd1ddf903d4f24086362ec83656d9_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 1928 wrote to memory of 1760	1928	2024-05-23_584cd1ddf903d4f24086362ec83656d9_cryptolocker.exe	28
PID 1928 wrote to memory of 1760	1928	2024-05-23_584cd1ddf903d4f24086362ec83656d9_cryptolocker.exe	28
PID 1928 wrote to memory of 1760	1928	2024-05-23_584cd1ddf903d4f24086362ec83656d9_cryptolocker.exe	28
PID 1928 wrote to memory of 1760	1928	2024-05-23_584cd1ddf903d4f24086362ec83656d9_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-23_584cd1ddf903d4f24086362ec83656d9_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-23_584cd1ddf903d4f24086362ec83656d9_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1928
- C:\Users\Admin\AppData\Local\Temp\lossy.exe
  "C:\Users\Admin\AppData\Local\Temp\lossy.exe"
  2⤵
  - Executes dropped EXE
  PID:1760

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
56KB

MD5
8ec825abd4153082f176749e78da4c02

SHA1
0276a769aec580b832018e6d852a6b2755e9247e

SHA256
da7aeee35e3054ce58dd55e3170f600754de11719398cb3c3593e332e1268788

SHA512
faf3f440e7cc5f962eabb937c5d363b88232c3830c723c8057828cc39058c4aba921ed55c7e20f2c6b44cfb2fb9a144fe4adfdcf8867f66cac1634ddda054345

Download Submit
memory/1760-15-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/1760-16-0x0000000000450000-0x0000000000456000-memory.dmp

Filesize
24KB

Download
memory/1928-0-0x0000000000250000-0x0000000000256000-memory.dmp

Filesize
24KB

Download
memory/1928-8-0x0000000000250000-0x0000000000256000-memory.dmp

Filesize
24KB

Download
memory/1928-1-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download