e1a013601c6b0e33e00e091d7cbf9991103359e81baee1daecb8f77f7a33b3e5

Analysis

max time kernel
149s
max time network
150s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
25-01-2024 17:31

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General

Target

2024-01-25_7a967491d20b799cab6af850c73af3be_cryptolocker.exe
Size

51KB
MD5

7a967491d20b799cab6af850c73af3be
SHA1

325332d1fe41cb467ab9b65b89101e17eff34499
SHA256

e1a013601c6b0e33e00e091d7cbf9991103359e81baee1daecb8f77f7a33b3e5
SHA512

9573ead97632f2b4dd9f2e2fbe9107d1573c64592c73f1823dcbb787edc123a6a25afd4b0d9db6c7d2e36815287de4c0424252f280b5c0054b412dbdbfaf0954
SSDEEP

768:bIDOw9UiaCHfjnE0Sfa7ilR0p9u6p4ICNBCXK9GZ:bIDOw9a0DwitDZzv

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

Processes:

resource	yara_rule
behavioral1/files/0x000a00000001224e-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

Processes:

lossy.exe

pid	Process
2212	lossy.exe

Loads dropped DLL 1 IoCs

Processes:

2024-01-25_7a967491d20b799cab6af850c73af3be_cryptolocker.exe

pid	Process
2148	2024-01-25_7a967491d20b799cab6af850c73af3be_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

Processes:

2024-01-25_7a967491d20b799cab6af850c73af3be_cryptolocker.exe

description	pid	Process	procid_target
PID 2148 wrote to memory of 2212	2148	2024-01-25_7a967491d20b799cab6af850c73af3be_cryptolocker.exe	28
PID 2148 wrote to memory of 2212	2148	2024-01-25_7a967491d20b799cab6af850c73af3be_cryptolocker.exe	28
PID 2148 wrote to memory of 2212	2148	2024-01-25_7a967491d20b799cab6af850c73af3be_cryptolocker.exe	28
PID 2148 wrote to memory of 2212	2148	2024-01-25_7a967491d20b799cab6af850c73af3be_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-01-25_7a967491d20b799cab6af850c73af3be_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-25_7a967491d20b799cab6af850c73af3be_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2148
- C:\Users\Admin\AppData\Local\Temp\lossy.exe
  "C:\Users\Admin\AppData\Local\Temp\lossy.exe"
  2⤵
  - Executes dropped EXE
  PID:2212

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
51KB

MD5
fff6d96feae5a88d4416b9c0c3bf1119

SHA1
1aa580da457a2c9f0931623a5f58c62b859d0d4d

SHA256
9acc9f834d4e8ec30f0d834d4ccd1fb8b3f5e6d4f6c140bed0adde8a74be1e96

SHA512
08f44f731bf16b99f6b64e82ef5b2ab68e468a103fb4517229198be82c61de52771816b5cf2f1ef2cab81a57f6cf38b1313f4dc58bda9bca5d80c0f36148c097

Download Submit
memory/2148-0-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2148-1-0x0000000000290000-0x0000000000296000-memory.dmp

Filesize
24KB

Download
memory/2148-8-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2212-15-0x0000000000480000-0x0000000000486000-memory.dmp

Filesize
24KB

Download