1875478484e49dad02deeddc7248dc6a2ba9a5ef0cda6621e3b48a42502427c9

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
01/02/2024, 15:26

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General

Target

2024-02-01_4bd41913b9187a2def7b299d3ceb8c86_cryptolocker.exe
Size

40KB
MD5

4bd41913b9187a2def7b299d3ceb8c86
SHA1

49d6d45940387f47ad5543de9198e85d3c14ec46
SHA256

1875478484e49dad02deeddc7248dc6a2ba9a5ef0cda6621e3b48a42502427c9
SHA512

2a55b9eaa96e571ddfc8c87c0a97fa368d5d11281a63aed6293a5b7970e4483d9683b866750c99e1175b6eb475311efced6b73913f80c852dfc49598ec8ba7fe
SSDEEP

768:bIDOw9UiaCHfjnE0Sf88AvvP1oghYvm9/6Dy8PESr:bIDOw9a0Dwo3P1ojvUSDhcSr

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x0009000000012264-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2700	lossy.exe

Loads dropped DLL 1 IoCs

pid	Process
1940	2024-02-01_4bd41913b9187a2def7b299d3ceb8c86_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 1940 wrote to memory of 2700	1940	2024-02-01_4bd41913b9187a2def7b299d3ceb8c86_cryptolocker.exe	28
PID 1940 wrote to memory of 2700	1940	2024-02-01_4bd41913b9187a2def7b299d3ceb8c86_cryptolocker.exe	28
PID 1940 wrote to memory of 2700	1940	2024-02-01_4bd41913b9187a2def7b299d3ceb8c86_cryptolocker.exe	28
PID 1940 wrote to memory of 2700	1940	2024-02-01_4bd41913b9187a2def7b299d3ceb8c86_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-01_4bd41913b9187a2def7b299d3ceb8c86_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-01_4bd41913b9187a2def7b299d3ceb8c86_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1940
- C:\Users\Admin\AppData\Local\Temp\lossy.exe
  "C:\Users\Admin\AppData\Local\Temp\lossy.exe"
  2⤵
  - Executes dropped EXE
  PID:2700

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
40KB

MD5
d47bdf69dd0d58a9c6fbb4ad57728119

SHA1
e88238ba82221e2df3b4d64209948d42094cf299

SHA256
acc8d2cec3864b24f8438710ec5f271dd900b3ac23d660923fc52668c144c084

SHA512
f950e1b518cf623458581a9499fd20f448a9d6862817c3e973c536964681d35a66466c74d6ef043c4f5b83bba6c4c1fc2f10bff2366dd5e15ec2ead95a9adfef

Download Submit
memory/1940-0-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/1940-2-0x00000000007F0000-0x00000000007F6000-memory.dmp

Filesize
24KB

Download
memory/1940-1-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/2700-15-0x0000000000410000-0x0000000000416000-memory.dmp

Filesize
24KB

Download
memory/2700-17-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download