b81d8db5114392bec3c704ea74a7ab7000b5e26199c7f9651a6768980bc17e5b

Analysis

max time kernel
149s
max time network
153s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
29-02-2024 04:34

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General

Target

2024-02-29_202bfa72d33be21e18e2ef6d58937417_cryptolocker.exe
Size

122KB
MD5

202bfa72d33be21e18e2ef6d58937417
SHA1

08d0ff975a1f027776166980ab6db5666a4fbe3d
SHA256

b81d8db5114392bec3c704ea74a7ab7000b5e26199c7f9651a6768980bc17e5b
SHA512

4c3870a0e302dea683f0a96e6719d34248f7072248b5f740e19f4ee6666142b8a4105077cbc13c0ee0351b6034a84a3e0ac9998efda7d18ef46451d4148caea7
SSDEEP

1536:u6QFElP6n+gWMOtEvwDpjJGYQbN/PKwMgJ:u6a++OtEvwDpj6z9

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000c000000012262-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000c000000012262-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2872	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2240	2024-02-29_202bfa72d33be21e18e2ef6d58937417_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 2240 wrote to memory of 2872	2240	2024-02-29_202bfa72d33be21e18e2ef6d58937417_cryptolocker.exe	28
PID 2240 wrote to memory of 2872	2240	2024-02-29_202bfa72d33be21e18e2ef6d58937417_cryptolocker.exe	28
PID 2240 wrote to memory of 2872	2240	2024-02-29_202bfa72d33be21e18e2ef6d58937417_cryptolocker.exe	28
PID 2240 wrote to memory of 2872	2240	2024-02-29_202bfa72d33be21e18e2ef6d58937417_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-29_202bfa72d33be21e18e2ef6d58937417_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-29_202bfa72d33be21e18e2ef6d58937417_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2240
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2872

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\asih.exe

Filesize
122KB

MD5
05dc07f7a433933a0760ae57ece24205

SHA1
49fc1f8469725d67399bc04c285f6a38f86dcf82

SHA256
8f15633990f09c13deb14d96bebc2b17f4c117a19a22c0bb35a1f5c4bf6e6e20

SHA512
5d109c5319d12a29b0f0f65be562bafa39a005da424a662cd08f5a9238989b942359f720c1dc6b9e72f44d8b785f2923d36362b9049fe74e8ebf0d3b9bf97158

Download Submit
memory/2240-0-0x0000000000340000-0x0000000000346000-memory.dmp

Filesize
24KB

Download
memory/2240-1-0x0000000000370000-0x0000000000376000-memory.dmp

Filesize
24KB

Download
memory/2240-3-0x0000000000340000-0x0000000000346000-memory.dmp

Filesize
24KB

Download
memory/2872-15-0x00000000004E0000-0x00000000004E6000-memory.dmp

Filesize
24KB

Download
memory/2872-17-0x00000000003C0000-0x00000000003C6000-memory.dmp

Filesize
24KB

Download