5d58d90f4ed636d35574ecc6879c18079df9776683a29a12464671f1a39c78b4

Analysis

max time kernel
149s
max time network
154s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
10/03/2024, 12:42

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General

Target

2024-03-10_53c1b356aaf75c56ef4e7925b2a96029_cryptolocker.exe
Size

36KB
MD5

53c1b356aaf75c56ef4e7925b2a96029
SHA1

a2d268b11642f13b0b5498bdb15621625fb44d6f
SHA256

5d58d90f4ed636d35574ecc6879c18079df9776683a29a12464671f1a39c78b4
SHA512

ee71b00f4dca8087f9d8fc663fc9d0d98be0f52784ad60ae693afe302f36a01074b8b31b1eb99bb3cdc7ee208f75fc35ee76fc239fc85ee89e7d9f8ba6586f52
SSDEEP

768:vQz7yVEhs9+js1SQtOOtEvwDpjz9+4/UkRYzMAZ+bc:vj+jsMQMOtEvwDpj5HcSYPj

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral2/files/0x000700000001ebc7-12.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral2/files/0x000700000001ebc7-12.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-1-5-21-566096764-1992588923-1249862864-1000\Control Panel\International\Geo\Nation	2024-03-10_53c1b356aaf75c56ef4e7925b2a96029_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
384	misid.exe

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

System Information Discovery
T1082

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeManageVolumePrivilege	2184	svchost.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 936 wrote to memory of 384	936	2024-03-10_53c1b356aaf75c56ef4e7925b2a96029_cryptolocker.exe	90
PID 936 wrote to memory of 384	936	2024-03-10_53c1b356aaf75c56ef4e7925b2a96029_cryptolocker.exe	90
PID 936 wrote to memory of 384	936	2024-03-10_53c1b356aaf75c56ef4e7925b2a96029_cryptolocker.exe	90

C:\Users\Admin\AppData\Local\Temp\2024-03-10_53c1b356aaf75c56ef4e7925b2a96029_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-10_53c1b356aaf75c56ef4e7925b2a96029_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:936
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:384

C:\Windows\system32\rundll32.exe
"C:\Windows\system32\rundll32.exe" "C:\Windows\SYSTEM32\EDGEHTML.dll",#141 Microsoft.VCLibs.140.00_8wekyb3d8bbwe
1⤵
PID:4360

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k UnistackSvcGroup
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2184

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
36KB

MD5
6f7c6dffaa8d3569d19cb822345aebcc

SHA1
c6dd2d3f61408178636cdd77f3a030827846c180

SHA256
05733caa9106b39ac0f55f579fc7ebab037c223043a0c66c4ed29de4d3a7436a

SHA512
2ca978160979474d25480daa6fe86a9b2e3adc6d2948e15b82983073bc95c2d715517d9f22affb4b380d58cb17e36cddc3ffd08e95e970c98d73fa32994dcf18

Download Submit
memory/384-18-0x00000000020C0000-0x00000000020C6000-memory.dmp

Filesize
24KB

Download
memory/384-17-0x00000000020E0000-0x00000000020E6000-memory.dmp

Filesize
24KB

Download
memory/936-0-0x0000000000660000-0x0000000000666000-memory.dmp

Filesize
24KB

Download
memory/936-2-0x0000000000690000-0x0000000000696000-memory.dmp

Filesize
24KB

Download
memory/936-1-0x0000000000660000-0x0000000000666000-memory.dmp

Filesize
24KB

Download
memory/2184-24-0x0000012E0E140000-0x0000012E0E150000-memory.dmp

Filesize
64KB

Download
memory/2184-40-0x0000012E0E240000-0x0000012E0E250000-memory.dmp

Filesize
64KB

Download
memory/2184-56-0x0000012E16540000-0x0000012E16541000-memory.dmp

Filesize
4KB

Download
memory/2184-58-0x0000012E16560000-0x0000012E16561000-memory.dmp

Filesize
4KB

Download
memory/2184-59-0x0000012E16560000-0x0000012E16561000-memory.dmp

Filesize
4KB

Download
memory/2184-60-0x0000012E16680000-0x0000012E16681000-memory.dmp

Filesize
4KB

Download