57660d2ead4ca60aaaee659ecd5293310e8e3db659ef795e5bebcf7eaab46e1a

Analysis

max time kernel
148s
max time network
153s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
29-02-2024 08:36

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General

Target

2024-02-29_540133c2799cabad4b5c8b6f81a5e0d4_cryptolocker.exe
Size

63KB
MD5

540133c2799cabad4b5c8b6f81a5e0d4
SHA1

caea03bbcf8c84d6fb69d224df39d8e403e345d3
SHA256

57660d2ead4ca60aaaee659ecd5293310e8e3db659ef795e5bebcf7eaab46e1a
SHA512

1daf0c6f90091a036279940cad4375c8473d598b441f60f6422a7d36526adba7fb23a05782264ed46ed76be7f40c6f8fc56a0ef0106d313db1d753e6734fe905
SSDEEP

1536:o1KhxqwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZszsbKY1x/9lfL+gniDScGs:aq7tdgI2MyzNORQtOflIwoHNV2XBFV7Z

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000800000001222b-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000800000001222b-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2688	hurok.exe

Loads dropped DLL 1 IoCs

pid	Process
2212	2024-02-29_540133c2799cabad4b5c8b6f81a5e0d4_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
2212	2024-02-29_540133c2799cabad4b5c8b6f81a5e0d4_cryptolocker.exe
2688	hurok.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2212 wrote to memory of 2688	2212	2024-02-29_540133c2799cabad4b5c8b6f81a5e0d4_cryptolocker.exe	28
PID 2212 wrote to memory of 2688	2212	2024-02-29_540133c2799cabad4b5c8b6f81a5e0d4_cryptolocker.exe	28
PID 2212 wrote to memory of 2688	2212	2024-02-29_540133c2799cabad4b5c8b6f81a5e0d4_cryptolocker.exe	28
PID 2212 wrote to memory of 2688	2212	2024-02-29_540133c2799cabad4b5c8b6f81a5e0d4_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-29_540133c2799cabad4b5c8b6f81a5e0d4_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-29_540133c2799cabad4b5c8b6f81a5e0d4_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2212
- 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:2688

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
63KB

MD5
10529da180b245dbb34506e20e5da384

SHA1
a9e534eec8e0696433f6055f0fd5918d97f214e1

SHA256
5855583fb154f710920ed33bcdcb4031094ea4fdc8972c5494a6fd4e57f33690

SHA512
3e7118361e2e91001df820ae00642f1d1d1cea977a8d5d6b885d3558c2f47b878c7c40ce5f9e46406c94fd9fbbf0d89cd76241830d3ba82fd7fd1de3a7826350

Download Submit
memory/2212-0-0x00000000002B0000-0x00000000002B6000-memory.dmp

Filesize
24KB

Download
memory/2212-2-0x00000000002B0000-0x00000000002B6000-memory.dmp

Filesize
24KB

Download
memory/2212-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2688-18-0x00000000001C0000-0x00000000001C6000-memory.dmp

Filesize
24KB

Download