e99db648d9cc5e3f39d76f95fae55a7abb611295a8a6f77881c687684dab9a51

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
25/01/2024, 09:24

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General

Target

2024-01-25_23fc8c00c3e6541d18548c908ec6471c_cryptolocker.exe
Size

39KB
MD5

23fc8c00c3e6541d18548c908ec6471c
SHA1

b1bdfb855dea41100452714475d4d157facd86d4
SHA256

e99db648d9cc5e3f39d76f95fae55a7abb611295a8a6f77881c687684dab9a51
SHA512

0188d6fddb64497d14597a2c77571edd9bacee59668a19c31d4ec90bc3a79334a330c113c63350942d770e996ee408cd250ac0a4d170302c19a13549748b0989
SSDEEP

768:bIDOw9UiaCHfjnE0Sf88AvvP1oghYvm9/6Dy8POKM:bIDOw9a0Dwo3P1ojvUSDhK

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000a000000012243-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2704	lossy.exe

Loads dropped DLL 1 IoCs

pid	Process
2292	2024-01-25_23fc8c00c3e6541d18548c908ec6471c_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 2292 wrote to memory of 2704	2292	2024-01-25_23fc8c00c3e6541d18548c908ec6471c_cryptolocker.exe	28
PID 2292 wrote to memory of 2704	2292	2024-01-25_23fc8c00c3e6541d18548c908ec6471c_cryptolocker.exe	28
PID 2292 wrote to memory of 2704	2292	2024-01-25_23fc8c00c3e6541d18548c908ec6471c_cryptolocker.exe	28
PID 2292 wrote to memory of 2704	2292	2024-01-25_23fc8c00c3e6541d18548c908ec6471c_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-01-25_23fc8c00c3e6541d18548c908ec6471c_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-25_23fc8c00c3e6541d18548c908ec6471c_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2292
- C:\Users\Admin\AppData\Local\Temp\lossy.exe
  "C:\Users\Admin\AppData\Local\Temp\lossy.exe"
  2⤵
  - Executes dropped EXE
  PID:2704

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
531013c143d1a96481057ce23f21fe51

SHA1
c63c79274ee47fcf0cabcccd2c0655bc711db18c

SHA256
1399a6986b5d84c755c04abf882f2bdc592c7bd590647929cfcbcdab06b4006f

SHA512
b59f3af07092aa0fc71952d1db8dfa8173030f8c0a6ab996edc482ec09705268adad6ee0a0f026a6e80c1354e7acc6b2e2cd1d6ff3962ebfb9696dacb9a608e5

Download Submit
memory/2292-0-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2292-1-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2292-2-0x0000000000270000-0x0000000000276000-memory.dmp

Filesize
24KB

Download
memory/2704-15-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/2704-17-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download