8dd088827733a2b4533615d560789019dcfa7f7ada60eabe885eddc90f3418e2

Analysis

max time kernel
149s
max time network
154s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
19-02-2024 07:35

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General

Target

2024-02-19_337bb7b0be5be8891e8143b14b980bcc_cryptolocker.exe
Size

385KB
MD5

337bb7b0be5be8891e8143b14b980bcc
SHA1

6fb61e2143c955fa583a03d8a49597c32a89f063
SHA256

8dd088827733a2b4533615d560789019dcfa7f7ada60eabe885eddc90f3418e2
SHA512

30bcd64585521dcdd8527ab154d9fa167773bbbdd4fa3390a749e6b3422f27ecc5b684d61d86c179ae5587082a38b29ed1d7cfe4d5dd1ec5fd5d8e654ca01f4e
SSDEEP

6144:nnOsaQgAOjvrZFODJjBz3j1jTqQy6v2GGnugOtihzXt:nnOflT/ZFIjBz3xjTxynGUOUhXt

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000d00000001224a-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2248	hasfj.exe

Loads dropped DLL 1 IoCs

pid	Process
1720	2024-02-19_337bb7b0be5be8891e8143b14b980bcc_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 1720 wrote to memory of 2248	1720	2024-02-19_337bb7b0be5be8891e8143b14b980bcc_cryptolocker.exe	28
PID 1720 wrote to memory of 2248	1720	2024-02-19_337bb7b0be5be8891e8143b14b980bcc_cryptolocker.exe	28
PID 1720 wrote to memory of 2248	1720	2024-02-19_337bb7b0be5be8891e8143b14b980bcc_cryptolocker.exe	28
PID 1720 wrote to memory of 2248	1720	2024-02-19_337bb7b0be5be8891e8143b14b980bcc_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-19_337bb7b0be5be8891e8143b14b980bcc_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-19_337bb7b0be5be8891e8143b14b980bcc_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1720
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:2248

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\hasfj.exe

Filesize
385KB

MD5
e0ac92b9b2f5f25f7a48c4b041eacb21

SHA1
b781c374deb2a4c2b0a91804c4056f4e1b703c10

SHA256
5ed05ca789ed3f2176bf198d690d0655b95e289e5b1454a9f8654f714bd9da3a

SHA512
df89dab621e097bfcda22a2743f7aaf9dd496fa70a8299d59de984fd21663c1204a2299c21a1ab98a13214c65f0bd7a6b84f71429b6041b28ed908b675289c68

Download Submit
memory/1720-0-0x0000000000450000-0x0000000000456000-memory.dmp

Filesize
24KB

Download
memory/1720-2-0x0000000000450000-0x0000000000456000-memory.dmp

Filesize
24KB

Download
memory/1720-1-0x0000000000700000-0x0000000000706000-memory.dmp

Filesize
24KB

Download
memory/2248-15-0x0000000000470000-0x0000000000476000-memory.dmp

Filesize
24KB

Download