cb913c69cfbc1839addf507085208bebd47ad73156550adb76e23cb27d3c9bbd

Analysis

max time kernel
148s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
06/03/2024, 17:26

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General

Target

2024-03-06_0cea538e68a23f82cc5b12ce8a0315e4_cryptolocker.exe
Size

124KB
MD5

0cea538e68a23f82cc5b12ce8a0315e4
SHA1

bdfd69931c5eb39f1041fe6345173bea1bd18fe4
SHA256

cb913c69cfbc1839addf507085208bebd47ad73156550adb76e23cb27d3c9bbd
SHA512

59bc9e2e13d44757970227f8496805a7bfba0bb83a0c02fb9073bf7c9fdcb3bd0aa43ffe9113e08298476e784d90fb1f423f6bbead92588b57255a6a87f2b59a
SSDEEP

1536:gUj+AIMOtEvwDpjNbwQEIPlemUhYwkkxE4qK:vCA9OtEvwDpjs

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000e000000023131-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x000e000000023131-12.dat	CryptoLocker_set1

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-1-5-21-3270530367-132075249-2153716227-1000\Control Panel\International\Geo\Nation	2024-03-06_0cea538e68a23f82cc5b12ce8a0315e4_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
2448	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 3752 wrote to memory of 2448	3752	2024-03-06_0cea538e68a23f82cc5b12ce8a0315e4_cryptolocker.exe	90
PID 3752 wrote to memory of 2448	3752	2024-03-06_0cea538e68a23f82cc5b12ce8a0315e4_cryptolocker.exe	90
PID 3752 wrote to memory of 2448	3752	2024-03-06_0cea538e68a23f82cc5b12ce8a0315e4_cryptolocker.exe	90

C:\Users\Admin\AppData\Local\Temp\2024-03-06_0cea538e68a23f82cc5b12ce8a0315e4_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-06_0cea538e68a23f82cc5b12ce8a0315e4_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3752
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:2448

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
124KB

MD5
9d159c4fb39fd96f55a06a8100f2af95

SHA1
0554a9f7b562b0aa2da38ea903c3a7345656a221

SHA256
3fd64e04a3bf8cf5b2bfddb1fa80c8fc2c9c034cfe2ce4134ac802948f680d76

SHA512
edf4a6e59fa09c7a834b968538d26fdd433fe8c9e9a807e03bf8550840c417514a0bde899fffcd9c2b053313b3d48426ca1a3902fe03f4875ed3b24d04d4ab58

Download Submit
memory/2448-17-0x00000000006D0000-0x00000000006D6000-memory.dmp

Filesize
24KB

Download
memory/2448-21-0x00000000006B0000-0x00000000006B6000-memory.dmp

Filesize
24KB

Download
memory/3752-0-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download
memory/3752-1-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download
memory/3752-2-0x0000000002230000-0x0000000002236000-memory.dmp

Filesize
24KB

Download