6e8377df1444936468dafb1e3df16eed090aae8e989761a98da0c9a0a57b10ac

Analysis

max time kernel
147s
max time network
149s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
06/03/2024, 06:31

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General

Target

2024-03-06_bf1039038d9dbabdef5bb8eeff20df0e_cryptolocker.exe
Size

50KB
MD5

bf1039038d9dbabdef5bb8eeff20df0e
SHA1

b1431604f07fdf1f7bf721c940e476f37169c85c
SHA256

6e8377df1444936468dafb1e3df16eed090aae8e989761a98da0c9a0a57b10ac
SHA512

7131194d4df808fbaf1b8da5b0045a48de47a801f662fda683baebca096673954411cf83937ac1e95c5a10708a8af4d0673eb9db0969b2491756f320cad8f1b3
SSDEEP

1536:o1KhxqwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZszsbKY1xzpAIG1:aq7tdgI2MyzNORQtOflIwoHNV2XBFV7r

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000a000000012255-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000a000000012255-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
3064	hurok.exe

Loads dropped DLL 1 IoCs

pid	Process
2388	2024-03-06_bf1039038d9dbabdef5bb8eeff20df0e_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
2388	2024-03-06_bf1039038d9dbabdef5bb8eeff20df0e_cryptolocker.exe
3064	hurok.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2388 wrote to memory of 3064	2388	2024-03-06_bf1039038d9dbabdef5bb8eeff20df0e_cryptolocker.exe	28
PID 2388 wrote to memory of 3064	2388	2024-03-06_bf1039038d9dbabdef5bb8eeff20df0e_cryptolocker.exe	28
PID 2388 wrote to memory of 3064	2388	2024-03-06_bf1039038d9dbabdef5bb8eeff20df0e_cryptolocker.exe	28
PID 2388 wrote to memory of 3064	2388	2024-03-06_bf1039038d9dbabdef5bb8eeff20df0e_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-06_bf1039038d9dbabdef5bb8eeff20df0e_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-06_bf1039038d9dbabdef5bb8eeff20df0e_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2388
- 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:3064

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
50KB

MD5
118da9ed344a3fb5a701e680534d6897

SHA1
c63712ee13cb9870d491c902fe12d7ed8f28e031

SHA256
73915e04e2068bd9240acc42cb594898643fd8c526e96155679252e43eb2a12a

SHA512
8ec029d4309400b5bf7798fe55279cdfea66cfe63848c5cb202133f541a0482ff7d2d240d92b38bbd4ede3a4664d6807c8669f2f916a3465133503e81a3c9e39

Download Submit
memory/2388-0-0x0000000000230000-0x0000000000236000-memory.dmp

Filesize
24KB

Download
memory/2388-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2388-2-0x0000000000230000-0x0000000000236000-memory.dmp

Filesize
24KB

Download