44bb6c2c0fbb825652c4cb6084beb28a5dc7cfe16615582ce8906f00e71eeefe

Analysis

max time kernel
149s
max time network
153s
platform
windows7_x64
resource
win7-20240508-en
resource tags

arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
submitted
31/05/2024, 02:34

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General

Target

2024-05-31_2d10796f998dfe775a540b0740cdd284_cryptolocker.exe
Size

43KB
MD5

2d10796f998dfe775a540b0740cdd284
SHA1

3b751182593bba89cbafaf2dd9bba5410d894f49
SHA256

44bb6c2c0fbb825652c4cb6084beb28a5dc7cfe16615582ce8906f00e71eeefe
SHA512

3d98f07eff9fb9a435a03d586e00fa1752a9e1180a2dd6b09a71d6598560e09c0444cd5d438817aef808e8534ca94651998efb110d2a96cd44b6887fd1163875
SSDEEP

768:bIDOw9UiaCHfjnE0Sf88AvvP1oghYvm9/6DyE9x3h6H:bIDOw9a0Dwo3P1ojvUSD79Ro

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000c00000001226d-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2564	lossy.exe

Loads dropped DLL 1 IoCs

pid	Process
1976	2024-05-31_2d10796f998dfe775a540b0740cdd284_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 1976 wrote to memory of 2564	1976	2024-05-31_2d10796f998dfe775a540b0740cdd284_cryptolocker.exe	28
PID 1976 wrote to memory of 2564	1976	2024-05-31_2d10796f998dfe775a540b0740cdd284_cryptolocker.exe	28
PID 1976 wrote to memory of 2564	1976	2024-05-31_2d10796f998dfe775a540b0740cdd284_cryptolocker.exe	28
PID 1976 wrote to memory of 2564	1976	2024-05-31_2d10796f998dfe775a540b0740cdd284_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-31_2d10796f998dfe775a540b0740cdd284_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-31_2d10796f998dfe775a540b0740cdd284_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1976
- C:\Users\Admin\AppData\Local\Temp\lossy.exe
  "C:\Users\Admin\AppData\Local\Temp\lossy.exe"
  2⤵
  - Executes dropped EXE
  PID:2564

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
43KB

MD5
1ba44bf7ae318fe34e6f3fc3a29102c8

SHA1
df236a8cec9b81ac53108116211d9a3f949c6b13

SHA256
206e990279f99fc38766b73a28bf89c822670c896e1acf9bdf27b4fa348b0315

SHA512
a5b75ed1bc7a6b80a84c76c142ca7c27903e92166ce12ac13c3f41c04fc51a15d3408f992ab0183abfef9d27458d0d9df616eb2653dca67191de0b74e6e21d91

Download Submit
memory/1976-8-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/1976-1-0x00000000002A0000-0x00000000002A6000-memory.dmp

Filesize
24KB

Download
memory/1976-0-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2564-15-0x0000000000370000-0x0000000000376000-memory.dmp

Filesize
24KB

Download
memory/2564-22-0x00000000002B0000-0x00000000002B6000-memory.dmp

Filesize
24KB

Download