3ebbea1ee14af610362343f2432fdef3e5c36ec632663da5dfedd8aef1f2bc50

Analysis

max time kernel
148s
max time network
148s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
06/03/2024, 00:33

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General

Target

2024-03-06_5cebd077b8f7c578fb1329a45e08a4fc_cryptolocker.exe
Size

48KB
MD5

5cebd077b8f7c578fb1329a45e08a4fc
SHA1

d0eb4f7387c2b6ca6ce7708f746e31782c64007f
SHA256

3ebbea1ee14af610362343f2432fdef3e5c36ec632663da5dfedd8aef1f2bc50
SHA512

988dd9ab038cc236c0764cc710dbcb9fd3fa20bbbe28cb7793f7a059613e0fff762202d104ee592737257776ebb338af1579c7e6c99559ad5299ba605c06825c
SSDEEP

768:X6LsoEEeegiZPvEhHSG+gp/QtOOtEvwDpjBVaD3wwsr0B9P:X6QFElP6n+gJQMOtEvwDpjBDw

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000a0000000143fa-13.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000a0000000143fa-13.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2456	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
1936	2024-03-06_5cebd077b8f7c578fb1329a45e08a4fc_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 1936 wrote to memory of 2456	1936	2024-03-06_5cebd077b8f7c578fb1329a45e08a4fc_cryptolocker.exe	28
PID 1936 wrote to memory of 2456	1936	2024-03-06_5cebd077b8f7c578fb1329a45e08a4fc_cryptolocker.exe	28
PID 1936 wrote to memory of 2456	1936	2024-03-06_5cebd077b8f7c578fb1329a45e08a4fc_cryptolocker.exe	28
PID 1936 wrote to memory of 2456	1936	2024-03-06_5cebd077b8f7c578fb1329a45e08a4fc_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-06_5cebd077b8f7c578fb1329a45e08a4fc_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-06_5cebd077b8f7c578fb1329a45e08a4fc_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1936
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2456

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

C:\Users\Admin\AppData\Local\Temp\asih.exe

Filesize
48KB

MD5
ff3e10c1920809499052026d27b71972

SHA1
03d7e4a18f4aad6f0e17f0f26678d88ea6e66277

SHA256
bef8bd4eabe39bcc8fe6fd43cd2a9bcea70b32353ab6126b6109526eae510dbc

SHA512
9b01bd96946a122e31ecc28d8513c67a332e3818a21c4ccf660f67611f9ca5bbb81b5a1cf1d414971d55be0424d94b2a6522fabc5ac169401d6d2e1302fd4107

Download Submit
memory/1936-0-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/1936-1-0x00000000004A0000-0x00000000004A6000-memory.dmp

Filesize
24KB

Download
memory/1936-2-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2456-15-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/2456-22-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download