6d63a07691da0674ce605b0565ddf9e5d8e471cd040f8172225dda4452023eb4

Analysis

max time kernel
148s
max time network
149s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
30/04/2024, 21:49

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General

Target

2024-04-30_85fc00e000c9c5d53bed342f58ae65e0_cryptolocker.exe
Size

40KB
MD5

85fc00e000c9c5d53bed342f58ae65e0
SHA1

5970fc8ebc522f95a84a5fed26003143095612cf
SHA256

6d63a07691da0674ce605b0565ddf9e5d8e471cd040f8172225dda4452023eb4
SHA512

23661d3c2d5be4a2a9e64fdaa2783c579bf42a0fc33728640bb189679fa3f87f04136aced8b21538f4f5ecb4582e0e5bc3a36d30193bb1562b0ba0c3d434269e
SSDEEP

768:X6LsoEEeegiZPvEhHSG+gp/QtOOtEvwDpjBaac4HK/wSvuQTCU:X6QFElP6n+gJQMOtEvwDpjBsYK/f/

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b00000001430e-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000b00000001430e-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
1988	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2012	2024-04-30_85fc00e000c9c5d53bed342f58ae65e0_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 2012 wrote to memory of 1988	2012	2024-04-30_85fc00e000c9c5d53bed342f58ae65e0_cryptolocker.exe	28
PID 2012 wrote to memory of 1988	2012	2024-04-30_85fc00e000c9c5d53bed342f58ae65e0_cryptolocker.exe	28
PID 2012 wrote to memory of 1988	2012	2024-04-30_85fc00e000c9c5d53bed342f58ae65e0_cryptolocker.exe	28
PID 2012 wrote to memory of 1988	2012	2024-04-30_85fc00e000c9c5d53bed342f58ae65e0_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-04-30_85fc00e000c9c5d53bed342f58ae65e0_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-30_85fc00e000c9c5d53bed342f58ae65e0_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2012
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:1988

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
40KB

MD5
5b111c4f336bbd895d309cea9f05e211

SHA1
bb9a18913488e9dda53b4f0fc88a0fdceb633ea0

SHA256
9eefc75355fb70e48658ee1f1f432fb87b4065331b1f0ac5e77e07091aae41ed

SHA512
9d9112ed730ea8564d250ef1d10e6f450902ddff8f11d1cfb74f44eec7de24ccf4f9cfb97e1f0dacb78bc01c3db201854b8c23df6b55c011e74ba804dc3896b3

Download Submit
memory/1988-15-0x0000000000210000-0x0000000000216000-memory.dmp

Filesize
24KB

Download
memory/1988-22-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2012-0-0x0000000000340000-0x0000000000346000-memory.dmp

Filesize
24KB

Download
memory/2012-1-0x0000000000380000-0x0000000000386000-memory.dmp

Filesize
24KB

Download
memory/2012-8-0x0000000000340000-0x0000000000346000-memory.dmp

Filesize
24KB

Download