9d73d4781d6058541844cdf9932d65edf1da904d75f6a593caae2e3445dda44a

Analysis

max time kernel
150s
max time network
154s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
01/02/2024, 08:48

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General

Target

2024-02-01_93df23afdf0ffdcd0886913d2d0149e0_cryptolocker.exe
Size

39KB
MD5

93df23afdf0ffdcd0886913d2d0149e0
SHA1

fcda880f4852503ca361d9c1d1db8a014f3a62ef
SHA256

9d73d4781d6058541844cdf9932d65edf1da904d75f6a593caae2e3445dda44a
SHA512

4fd69acdf483ff32a9ef66638105adc47d01387bb6f42afbe29177adec4e22e55844781011275ef58913846f86f3589a0160a67a9d0f1b69fa0cc7aa20404504
SSDEEP

768:bIDOw9UiaCHfjnE0Sf88AvvP1oghYvm9/6Dy8Prm:bIDOw9a0Dwo3P1ojvUSDhS

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b000000012243-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2000	lossy.exe

Loads dropped DLL 1 IoCs

pid	Process
2496	2024-02-01_93df23afdf0ffdcd0886913d2d0149e0_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 2496 wrote to memory of 2000	2496	2024-02-01_93df23afdf0ffdcd0886913d2d0149e0_cryptolocker.exe	28
PID 2496 wrote to memory of 2000	2496	2024-02-01_93df23afdf0ffdcd0886913d2d0149e0_cryptolocker.exe	28
PID 2496 wrote to memory of 2000	2496	2024-02-01_93df23afdf0ffdcd0886913d2d0149e0_cryptolocker.exe	28
PID 2496 wrote to memory of 2000	2496	2024-02-01_93df23afdf0ffdcd0886913d2d0149e0_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-01_93df23afdf0ffdcd0886913d2d0149e0_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-01_93df23afdf0ffdcd0886913d2d0149e0_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2496
- C:\Users\Admin\AppData\Local\Temp\lossy.exe
  "C:\Users\Admin\AppData\Local\Temp\lossy.exe"
  2⤵
  - Executes dropped EXE
  PID:2000

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
39KB

MD5
b85ceb5f5f9a981fdfdd94843704cc03

SHA1
57b044edb52dace45bfaed6542da430f9996c0a8

SHA256
fe102e7b7e6f4a34935ceab30b3b605906682d9662656572dd9a2121b2065999

SHA512
2c0c6d3239a7b04269bb26e834551f11f76e331ded77c9882efef66106620558d9fe4a8d3ee60be20fffdc053169c16f08c9b7452436b85ca35bdeaeec12b259

Download Submit
memory/2000-16-0x0000000000450000-0x0000000000456000-memory.dmp

Filesize
24KB

Download
memory/2000-15-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/2496-0-0x0000000000250000-0x0000000000256000-memory.dmp

Filesize
24KB

Download
memory/2496-2-0x0000000000250000-0x0000000000256000-memory.dmp

Filesize
24KB

Download
memory/2496-1-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download