023a9fbd9a2e7d09093a3092719e3fb513ca5ac2dc26387527317c14a24b5d3a

Analysis

max time kernel
149s
max time network
149s
platform
windows7_x64
resource
win7-20240220-en
resource tags

arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
submitted
15/03/2024, 14:00

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General

Target

2024-03-15_b770e8ad27d31f66406b50840bbb9c83_cryptolocker.exe
Size

65KB
MD5

b770e8ad27d31f66406b50840bbb9c83
SHA1

98e07a7786ff65e1d9c558e6648c5f267a24ed1e
SHA256

023a9fbd9a2e7d09093a3092719e3fb513ca5ac2dc26387527317c14a24b5d3a
SHA512

e8f3757a408b2236d59ffb58c21d7ad4f5ac72181ccee6455213ef0ebc531601a9ce7c65f9c5294236ec55738f6d7353243864f23c02c2b6224742b5577f9258
SSDEEP

1536:o1KhxqwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZszudnYTjipvF293vaRLh:aq7tdgI2MyzNORQtOflIwoHNV2XBFV7A

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000d000000012253-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000d000000012253-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
3024	hurok.exe

Loads dropped DLL 1 IoCs

pid	Process
2908	2024-03-15_b770e8ad27d31f66406b50840bbb9c83_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
2908	2024-03-15_b770e8ad27d31f66406b50840bbb9c83_cryptolocker.exe
3024	hurok.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2908 wrote to memory of 3024	2908	2024-03-15_b770e8ad27d31f66406b50840bbb9c83_cryptolocker.exe	28
PID 2908 wrote to memory of 3024	2908	2024-03-15_b770e8ad27d31f66406b50840bbb9c83_cryptolocker.exe	28
PID 2908 wrote to memory of 3024	2908	2024-03-15_b770e8ad27d31f66406b50840bbb9c83_cryptolocker.exe	28
PID 2908 wrote to memory of 3024	2908	2024-03-15_b770e8ad27d31f66406b50840bbb9c83_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-15_b770e8ad27d31f66406b50840bbb9c83_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-15_b770e8ad27d31f66406b50840bbb9c83_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2908
- 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:3024

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
65KB

MD5
d124c42860ac1d72c9cf4009fd372117

SHA1
e9d9e801a645a8ad750a8d9ee7301e01f1c4a1cb

SHA256
fa60a6d2b0492b287506c2e02ca016e688d15f2bc209aaf79f75e34309badcb5

SHA512
da358b0657074a25c038e66c1b516caaabdc29e458cfa78b8166fdfea9515db867000d93d55958c1df898495dbdd7edd94c1d3bf4d44a496ec14aa172ec4ad5a

Download Submit
memory/2908-0-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/2908-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2908-1-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/3024-17-0x0000000000310000-0x0000000000316000-memory.dmp

Filesize
24KB

Download