16cfa0daf6de553ff3751dac0a97bfc272169a8ca23a031cf23597a3d045ffbd

Analysis

max time kernel
144s
max time network
146s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
02-02-2024 22:22

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General

Target

2024-02-02_04b77b911d33d952b8e33c2c7a999e26_cryptolocker.exe
Size

36KB
MD5

04b77b911d33d952b8e33c2c7a999e26
SHA1

55175735a2a199a84c5a972ff65e53deafa1ee2e
SHA256

16cfa0daf6de553ff3751dac0a97bfc272169a8ca23a031cf23597a3d045ffbd
SHA512

2c14696479ba0e1b7de0d8e9b7001f0e1c546dc036eab6d49578aa96acd164c3793e78e7a48f7bbce7a48465026a539939f734078ad22857eb3eadff4ccc9c09
SSDEEP

768:bxNQIE0eBhkL2Fo1CCwgfjOg1tsJ6zeen7JEgx3OV:bxNrC7kYo1Fxf3s06gYV

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b0000000126ab-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
3048	pissa.exe

Loads dropped DLL 1 IoCs

pid	Process
2240	2024-02-02_04b77b911d33d952b8e33c2c7a999e26_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 2240 wrote to memory of 3048	2240	2024-02-02_04b77b911d33d952b8e33c2c7a999e26_cryptolocker.exe	28
PID 2240 wrote to memory of 3048	2240	2024-02-02_04b77b911d33d952b8e33c2c7a999e26_cryptolocker.exe	28
PID 2240 wrote to memory of 3048	2240	2024-02-02_04b77b911d33d952b8e33c2c7a999e26_cryptolocker.exe	28
PID 2240 wrote to memory of 3048	2240	2024-02-02_04b77b911d33d952b8e33c2c7a999e26_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-02_04b77b911d33d952b8e33c2c7a999e26_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-02_04b77b911d33d952b8e33c2c7a999e26_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2240
- C:\Users\Admin\AppData\Local\Temp\pissa.exe
  "C:\Users\Admin\AppData\Local\Temp\pissa.exe"
  2⤵
  - Executes dropped EXE
  PID:3048

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
bdaf42c5164ae28d79fc7c206bd8c72d

SHA1
9fa8218c4912ffe4a2956f9cb9d67bab8e729f2e

SHA256
7d3be1114560e52128330c9486436aed2f887183bc90390870d121cd9b529984

SHA512
c51bf1ea8d2a1b8ef63b64f62921272e5126c220a8f693c3fa18dffabdf2adaf312fe42c81e41db3347d9daceb3d422554e80d771ffae2d85c0c1c37d2b9a790

Download Submit
memory/2240-0-0x00000000002E0000-0x00000000002E6000-memory.dmp

Filesize
24KB

Download
memory/2240-1-0x00000000002F0000-0x00000000002F6000-memory.dmp

Filesize
24KB

Download
memory/2240-8-0x00000000002E0000-0x00000000002E6000-memory.dmp

Filesize
24KB

Download
memory/3048-15-0x0000000000480000-0x0000000000486000-memory.dmp

Filesize
24KB

Download
memory/3048-22-0x0000000000470000-0x0000000000476000-memory.dmp

Filesize
24KB

Download