683316380205fd8f5ae507c6ff81e9a500773f078f407cfcfde38e6c5b02ab7e

Analysis

max time kernel
146s
max time network
152s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
06/03/2024, 03:32

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General

Target

2024-03-06_31bc258032a0b3890876a233e61fd272_cryptolocker.exe
Size

37KB
MD5

31bc258032a0b3890876a233e61fd272
SHA1

5932925acb9f207510c4f1a7a391fd1f1bb914ae
SHA256

683316380205fd8f5ae507c6ff81e9a500773f078f407cfcfde38e6c5b02ab7e
SHA512

cdb6120b1905434b5a9671ec47a2f6e0b97b36ad0bb4d79271e59b589efdfc01809b367dee00ba490a1a32086b6583de4e01fd8764cca431153a82db0a785f41
SSDEEP

768:bxNQIE0eBhkL2Fo1CCwgfjOg1tsJ6zeen7JEgx3v:bxNrC7kYo1Fxf3s06gZ

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000a000000012240-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2536	pissa.exe

Loads dropped DLL 1 IoCs

pid	Process
2828	2024-03-06_31bc258032a0b3890876a233e61fd272_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 2828 wrote to memory of 2536	2828	2024-03-06_31bc258032a0b3890876a233e61fd272_cryptolocker.exe	28
PID 2828 wrote to memory of 2536	2828	2024-03-06_31bc258032a0b3890876a233e61fd272_cryptolocker.exe	28
PID 2828 wrote to memory of 2536	2828	2024-03-06_31bc258032a0b3890876a233e61fd272_cryptolocker.exe	28
PID 2828 wrote to memory of 2536	2828	2024-03-06_31bc258032a0b3890876a233e61fd272_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-06_31bc258032a0b3890876a233e61fd272_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-06_31bc258032a0b3890876a233e61fd272_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2828
- C:\Users\Admin\AppData\Local\Temp\pissa.exe
  "C:\Users\Admin\AppData\Local\Temp\pissa.exe"
  2⤵
  - Executes dropped EXE
  PID:2536

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\pissa.exe

Filesize
37KB

MD5
11525143c0b0062662f8b82c0b500dd6

SHA1
d61d6b03aaf598258316a14855da5de5830926a0

SHA256
94dd2f0cc92ac90d0fa89e178a51f812b77f6546c992df3b484eb7a8e612db65

SHA512
b27c2c70ef0d2f5568c291c2403d315c8f565b619af7e67dabc1a9a5f5102e89cfd0bdf17658ee213d118577392f13ecc31ea297d754df457539cdf637071ac1

Download Submit
memory/2536-15-0x0000000001CA0000-0x0000000001CA6000-memory.dmp

Filesize
24KB

Download
memory/2536-22-0x0000000000570000-0x0000000000576000-memory.dmp

Filesize
24KB

Download
memory/2828-0-0x0000000000370000-0x0000000000376000-memory.dmp

Filesize
24KB

Download
memory/2828-2-0x0000000000370000-0x0000000000376000-memory.dmp

Filesize
24KB

Download
memory/2828-1-0x0000000000390000-0x0000000000396000-memory.dmp

Filesize
24KB

Download