3b6458d4de6902a726d0d8e75b2d2a518479822fff1b37a226a90183b571103e

Analysis

max time kernel
150s
max time network
155s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
13-05-2024 07:36

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General

Target

2024-05-13_9359ad295ecc2ace2d5923df1346789c_cryptolocker.exe
Size

52KB
MD5

9359ad295ecc2ace2d5923df1346789c
SHA1

e54c86502d778b95e81a587fd1faad80e56570cf
SHA256

3b6458d4de6902a726d0d8e75b2d2a518479822fff1b37a226a90183b571103e
SHA512

387fbd563ba32d62533a9f919d33f412fa595362ae97e826c9ab3b99fcd119d0bd0032d7996ed4cb2d0564a84e9c014d34140586159e2bc92fc8a2704b91f49b
SSDEEP

1536:o1KhxqwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZszsbKY1xzpAI4km:aq7tdgI2MyzNORQtOflIwoHNV2XBFV79

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x0009000000015c23-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x0009000000015c23-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
1612	hurok.exe

Loads dropped DLL 1 IoCs

pid	Process
3016	2024-05-13_9359ad295ecc2ace2d5923df1346789c_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
3016	2024-05-13_9359ad295ecc2ace2d5923df1346789c_cryptolocker.exe
1612	hurok.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 3016 wrote to memory of 1612	3016	2024-05-13_9359ad295ecc2ace2d5923df1346789c_cryptolocker.exe	28
PID 3016 wrote to memory of 1612	3016	2024-05-13_9359ad295ecc2ace2d5923df1346789c_cryptolocker.exe	28
PID 3016 wrote to memory of 1612	3016	2024-05-13_9359ad295ecc2ace2d5923df1346789c_cryptolocker.exe	28
PID 3016 wrote to memory of 1612	3016	2024-05-13_9359ad295ecc2ace2d5923df1346789c_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-13_9359ad295ecc2ace2d5923df1346789c_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-13_9359ad295ecc2ace2d5923df1346789c_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:3016
- 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:1612

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
52KB

MD5
ab8692dace261d81d0b15becef9c4414

SHA1
44bdbb9d48d2e73e55fc5640263cf02cc2c03b18

SHA256
bfaf33138e5e8e1aa2e08bfeeff5eda22378ce33279a8f33ba30cb674e83a109

SHA512
4ad2f0d83a7d854b7a1b2bc964f6f25455519b970751b0496e1ca81093e8023e8ed1db60cbbf6d1ecf8003c1715c957553a7b517c85ade0612e2c1bd6a3c8cfd

Download Submit
memory/1612-23-0x00000000003F0000-0x00000000003F6000-memory.dmp

Filesize
24KB

Download
memory/3016-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/3016-0-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/3016-8-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download