9b00d087a27c3ea6e047858aec3b6ad9cb2a580151a0921f3c06c7123c3ca9f1

Analysis

max time kernel
93s
max time network
125s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
28/03/2024, 15:31

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General

Target

2024-03-28_95959b13a1354783ab9accb4235f14c7_cryptolocker.exe
Size

41KB
MD5

95959b13a1354783ab9accb4235f14c7
SHA1

f858f0a8f161f6ff806d07d468995b7b30ff62ef
SHA256

9b00d087a27c3ea6e047858aec3b6ad9cb2a580151a0921f3c06c7123c3ca9f1
SHA512

79aa54c56341a6b637c38bfeaa347b05bd9867b2a0a941611139257e1a6d5b4b1f782e88ec62909ad2b979f4183497f5bd76cc0cfa5c98954fd45e63d9f8a3ec
SSDEEP

768:UEEmoQDj/xnMp+yptndwe/PWQtOOtEvwDpjLenQL3bTyjL4P:ZzFbxmLPWQMOtEvwDpjLeU34Y

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x00090000000226e5-13.dat	CryptoLocker_rule2

Checks computer location settings 2 TTPs 2 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-566096764-1992588923-1249862864-1000\Control Panel\International\Geo\Nation	2024-03-28_95959b13a1354783ab9accb4235f14c7_cryptolocker.exe
Key value queried	\REGISTRY\USER\S-1-5-21-566096764-1992588923-1249862864-1000\Control Panel\International\Geo\Nation	misid.exe

Executes dropped EXE 1 IoCs

pid	Process
996	misid.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4104 wrote to memory of 996	4104	2024-03-28_95959b13a1354783ab9accb4235f14c7_cryptolocker.exe	87
PID 4104 wrote to memory of 996	4104	2024-03-28_95959b13a1354783ab9accb4235f14c7_cryptolocker.exe	87
PID 4104 wrote to memory of 996	4104	2024-03-28_95959b13a1354783ab9accb4235f14c7_cryptolocker.exe	87

C:\Users\Admin\AppData\Local\Temp\2024-03-28_95959b13a1354783ab9accb4235f14c7_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-28_95959b13a1354783ab9accb4235f14c7_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4104
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  PID:996

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

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\misid.exe

Filesize
41KB

MD5
044e5a094b4440c72247e3656cc97d82

SHA1
8b6ba8e77868bcbd4346a61d9687d64533c4affe

SHA256
fb41d8f58e348a62a82eb9eeaeef1e596008bff911b08a30c43ba7935bf8955a

SHA512
d78444fdc88f91cd82ef2dd5a155d9dca416c193623c2db00bc57634be1590e0f611f6bac0b5575d027b11f00b09b71e23e2d50a57123af9b7144f9c7414e1d7

Download Submit
memory/996-19-0x00000000006B0000-0x00000000006B6000-memory.dmp

Filesize
24KB

Download
memory/996-21-0x0000000000690000-0x0000000000696000-memory.dmp

Filesize
24KB

Download
memory/4104-0-0x0000000000620000-0x0000000000623000-memory.dmp

Filesize
12KB

Download
memory/4104-1-0x0000000002310000-0x0000000002316000-memory.dmp

Filesize
24KB

Download
memory/4104-2-0x0000000002310000-0x0000000002316000-memory.dmp

Filesize
24KB

Download
memory/4104-3-0x0000000002190000-0x0000000002196000-memory.dmp

Filesize
24KB

Download
memory/4104-17-0x0000000000620000-0x0000000000623000-memory.dmp

Filesize
12KB

Download