7689a14d42506cbd540b7af908898a77e3aa891afe5943a97da8dc50ca44538f

Analysis

max time kernel
150s
max time network
150s
platform
windows7_x64
resource
win7-20240220-en
resource tags

arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
submitted
29/02/2024, 01:46

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General

Target

2024-02-29_acaa61228eb05076447f5786593614ce_cryptolocker.exe
Size

43KB
MD5

acaa61228eb05076447f5786593614ce
SHA1

e761282b98c115583f6540444b8c041eed186959
SHA256

7689a14d42506cbd540b7af908898a77e3aa891afe5943a97da8dc50ca44538f
SHA512

298721da021a5aeef2dc1980788510dd9d81a42a1fb7e41c2b146db0214aaaf977ddee69168a471493208087e86ef22b3c827f32b5bc08021c5cd2b99cc1a998
SSDEEP

768:Kf1K2exg2kBwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZsBGGpebVIYLHA3KxH:o1KhxqwtdgI2MyzNORQtOflIwoHNV2Xi

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
2968	hurok.exe

Loads dropped DLL 1 IoCs

pid	Process
2280	2024-02-29_acaa61228eb05076447f5786593614ce_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
2280	2024-02-29_acaa61228eb05076447f5786593614ce_cryptolocker.exe
2968	hurok.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2280 wrote to memory of 2968	2280	2024-02-29_acaa61228eb05076447f5786593614ce_cryptolocker.exe	28
PID 2280 wrote to memory of 2968	2280	2024-02-29_acaa61228eb05076447f5786593614ce_cryptolocker.exe	28
PID 2280 wrote to memory of 2968	2280	2024-02-29_acaa61228eb05076447f5786593614ce_cryptolocker.exe	28
PID 2280 wrote to memory of 2968	2280	2024-02-29_acaa61228eb05076447f5786593614ce_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-29_acaa61228eb05076447f5786593614ce_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-29_acaa61228eb05076447f5786593614ce_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2280
- 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:2968

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
43KB

MD5
ea5d0320daf1e8f7521993b55b26ece3

SHA1
8e4d25cd9749c304c2e0865d14d323d79f23035c

SHA256
be5cde5167586ee6c975f85e8e7b8d3f17cb7b54364a49a99e7e094c4a7ff45a

SHA512
afc3f147f88c1126b1f79a7fc8d959cb2e5f4bdd87d1373dd938cf60e1190e71ec3079e59d0a2b9ec34168cff259a753eb909353025e70115989ba1d672047b9

Download Submit
memory/2280-0-0x0000000000230000-0x0000000000236000-memory.dmp

Filesize
24KB

Download
memory/2280-2-0x0000000000230000-0x0000000000236000-memory.dmp

Filesize
24KB

Download
memory/2280-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download