59c91ddb4314b41562a74f98c06f4fc7ac32d98b9a07c13eed1746618dbbb2d9

Analysis

max time kernel
150s
max time network
153s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
27/03/2024, 17:39

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General

Target

2024-03-27_9705dd37b2cd2ae98ff8d0b36cbda608_cryptolocker.exe
Size

66KB
MD5

9705dd37b2cd2ae98ff8d0b36cbda608
SHA1

85cb3f85592b155cb4dfcb6518a0bcc43955599b
SHA256

59c91ddb4314b41562a74f98c06f4fc7ac32d98b9a07c13eed1746618dbbb2d9
SHA512

a53269190967553462a30f2968869e84e64f96cd8ef70548c27d0bd67f95e5ae6fb2f95a3d82f87d8271a418629173e3ab7cfad24c5645a1c2e6fa33766acfc0
SSDEEP

1536:o1KhxqwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZszudnYTjipvF293vaRLX:aq7tdgI2MyzNORQtOflIwoHNV2XBFV7q

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000c0000000122ac-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000c0000000122ac-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
1316	hurok.exe

Loads dropped DLL 1 IoCs

pid	Process
2956	2024-03-27_9705dd37b2cd2ae98ff8d0b36cbda608_cryptolocker.exe

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

System Information Discovery
T1082

Suspicious use of UnmapMainImage 2 IoCs

pid	Process
2956	2024-03-27_9705dd37b2cd2ae98ff8d0b36cbda608_cryptolocker.exe
1316	hurok.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2956 wrote to memory of 1316	2956	2024-03-27_9705dd37b2cd2ae98ff8d0b36cbda608_cryptolocker.exe	28
PID 2956 wrote to memory of 1316	2956	2024-03-27_9705dd37b2cd2ae98ff8d0b36cbda608_cryptolocker.exe	28
PID 2956 wrote to memory of 1316	2956	2024-03-27_9705dd37b2cd2ae98ff8d0b36cbda608_cryptolocker.exe	28
PID 2956 wrote to memory of 1316	2956	2024-03-27_9705dd37b2cd2ae98ff8d0b36cbda608_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-27_9705dd37b2cd2ae98ff8d0b36cbda608_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-27_9705dd37b2cd2ae98ff8d0b36cbda608_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2956
- C:\Users\Admin\AppData\Local\Temp\hurok.exe
  "C:\Users\Admin\AppData\Local\Temp\hurok.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of UnmapMainImage
  PID:1316

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\hurok.exe

Filesize
66KB

MD5
05a36193cb86b0b91ef2b9278df0e7ff

SHA1
83434a4f594f43715cef1eb6f34185bde806b837

SHA256
d9ec34c4deac1f8df812aed126ed599359a45b13fe69179f1260294de31b946f

SHA512
87d2217eddb6800bec86ed1c361ab809736a3a07a1b3e3ccdaef84c4815638d0733538535e1f2e604be679fe35cb41e764c97cfaf1268f60ab473f0faf3846d5

Download Submit
memory/1316-18-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/2956-0-0x0000000000310000-0x0000000000316000-memory.dmp

Filesize
24KB

Download
memory/2956-2-0x0000000000310000-0x0000000000316000-memory.dmp

Filesize
24KB

Download
memory/2956-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download