82fff2555fab130b4c1ca86cd184171a76774a01fc39cd381e716189f9657c39

Analysis

max time kernel
148s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240221-en
resource tags

arch:x64arch:x86image:win10v2004-20240221-enlocale:en-usos:windows10-2004-x64system
submitted
22-02-2024 16:36

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General

Target

2024-02-22_89ffae6d08556f62ffa65790187169d2_cryptolocker.exe
Size

40KB
MD5

89ffae6d08556f62ffa65790187169d2
SHA1

a21ce1ef63cf91df156a885fb7e0f580e1e61989
SHA256

82fff2555fab130b4c1ca86cd184171a76774a01fc39cd381e716189f9657c39
SHA512

d926423d763e7572bb9ee33ea6382b8234b921b684c844ff998613d9568af4a8bd2e2033295c73f0591a11b5a500286ceca865b526c12b4037ee84479b61de57
SSDEEP

768:UEEmoQDj/xnMp+yptndwe/PWQtOOtEvwDpjLenQLm5a:ZzFbxmLPWQMOtEvwDpjLeUsa

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000300000001e96f-13.dat	CryptoLocker_rule2

Checks computer location settings 2 TTPs 1 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-1-5-21-1392040655-2056082574-619088944-1000\Control Panel\International\Geo\Nation	2024-02-22_89ffae6d08556f62ffa65790187169d2_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
2060	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 4160 wrote to memory of 2060	4160	2024-02-22_89ffae6d08556f62ffa65790187169d2_cryptolocker.exe	86
PID 4160 wrote to memory of 2060	4160	2024-02-22_89ffae6d08556f62ffa65790187169d2_cryptolocker.exe	86
PID 4160 wrote to memory of 2060	4160	2024-02-22_89ffae6d08556f62ffa65790187169d2_cryptolocker.exe	86

C:\Users\Admin\AppData\Local\Temp\2024-02-22_89ffae6d08556f62ffa65790187169d2_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-22_89ffae6d08556f62ffa65790187169d2_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4160
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:2060

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
40KB

MD5
f4a367a5bb9aca6ba90f6e6c7608da60

SHA1
f280f5463827c2545b0eadc2340a4d32dbd5dee9

SHA256
da50315a67fc3c2a0c9e5e83c0de241deb9dff94c3ddbf7c0eb83a1fac98e15e

SHA512
963b3b8be96986cd747691b4e47d7a136ea32256f3d34177951bb44170cfb9b58fb67ab0b649671c17b660186ff553613486f7561f365728302be4b845b67316

Download Submit
memory/2060-19-0x00000000004F0000-0x00000000004F6000-memory.dmp

Filesize
24KB

Download
memory/2060-21-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/4160-0-0x00000000004E0000-0x00000000004E3000-memory.dmp

Filesize
12KB

Download
memory/4160-1-0x0000000000670000-0x0000000000676000-memory.dmp

Filesize
24KB

Download
memory/4160-2-0x0000000000670000-0x0000000000676000-memory.dmp

Filesize
24KB

Download
memory/4160-3-0x0000000002230000-0x0000000002236000-memory.dmp

Filesize
24KB

Download
memory/4160-17-0x00000000004E0000-0x00000000004E3000-memory.dmp

Filesize
12KB

Download