43ad7ea983afb1a8e112024855681dee67c47ded6ff5a82a4c7e20f5ffec6759

Analysis

max time kernel
150s
max time network
153s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
27/03/2024, 19:26

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General

Target

2024-03-27_269cfa60af5356565e3ceab37ff6f81b_cryptolocker.exe
Size

39KB
MD5

269cfa60af5356565e3ceab37ff6f81b
SHA1

5c96f107e9a266b07c45a9588c4574394bd40a13
SHA256

43ad7ea983afb1a8e112024855681dee67c47ded6ff5a82a4c7e20f5ffec6759
SHA512

af4222fdff61990d7123c4cc55c273e3055f1abe7802b13dd6e92cb2427beb166226de7032cdbd62fc68f114389a04e7fa9ec6bb046a368c8305beaea8198c57
SSDEEP

384:bgX4uGLLQRcsdeQ7/nQu63Ag7YmecFanrlwfjDUkKDfWf0w3sp8u5cZnfX2cHr:bgX4zYcgTEu6QOaryfjqDDw3sCu5mXz

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b000000012267-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2892	hasfj.exe

Loads dropped DLL 1 IoCs

pid	Process
2884	2024-03-27_269cfa60af5356565e3ceab37ff6f81b_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 2884 wrote to memory of 2892	2884	2024-03-27_269cfa60af5356565e3ceab37ff6f81b_cryptolocker.exe	28
PID 2884 wrote to memory of 2892	2884	2024-03-27_269cfa60af5356565e3ceab37ff6f81b_cryptolocker.exe	28
PID 2884 wrote to memory of 2892	2884	2024-03-27_269cfa60af5356565e3ceab37ff6f81b_cryptolocker.exe	28
PID 2884 wrote to memory of 2892	2884	2024-03-27_269cfa60af5356565e3ceab37ff6f81b_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-27_269cfa60af5356565e3ceab37ff6f81b_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-27_269cfa60af5356565e3ceab37ff6f81b_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2884
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:2892

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\hasfj.exe

Filesize
39KB

MD5
427aabbe48f542ee307a229424571ab9

SHA1
3147a183a30c199d0171e5bef2fa0df839ecf70f

SHA256
293f9dd755df9fb4976e1bd47603c609af7bd8c648b80fb6ea1f26dfccd04723

SHA512
659b49aea0c2adfebb43f09f0e52692b64fef999b4dbd0bb73e7be2b711d76bc6a2c55dbb456fb5e3c9515ab3fb4ce608a538265e9d3a53106322048434e44c1

Download Submit
memory/2884-0-0x00000000002F0000-0x00000000002F6000-memory.dmp

Filesize
24KB

Download
memory/2884-1-0x0000000000350000-0x0000000000356000-memory.dmp

Filesize
24KB

Download
memory/2884-8-0x00000000002F0000-0x00000000002F6000-memory.dmp

Filesize
24KB

Download
memory/2892-15-0x00000000005D0000-0x00000000005D6000-memory.dmp

Filesize
24KB

Download
memory/2892-20-0x00000000005B0000-0x00000000005B6000-memory.dmp

Filesize
24KB

Download