48ae4c9c00d3f3c273eb7d82428c05728ac1f18ddd5de5573f11839d78d9bf50

Analysis

max time kernel
148s
max time network
149s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
14-03-2024 18:43

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General

Target

2024-03-14_9a146f05c3a0255a449e686e955c89d3_cryptolocker.exe
Size

41KB
MD5

9a146f05c3a0255a449e686e955c89d3
SHA1

41dd10267d3eb6b8b2e5c0e7540139a01dd0b6e0
SHA256

48ae4c9c00d3f3c273eb7d82428c05728ac1f18ddd5de5573f11839d78d9bf50
SHA512

3b0d4d417e10ba86ac2721bd620a5948ce317a50c84526ba276c0b2e9d42de82f84aaeb250ccd9d1b037d706245c5fb2f8e8e99beb6be985eb691ca6ea102c11
SSDEEP

768:b7o/2n1TCraU6GD1a4Xcn62TUdcuQlqJ51jpat:bc/y2lm6Y0AqJ51Vu

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x0009000000015df1-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
3004	rewok.exe

Loads dropped DLL 1 IoCs

pid	Process
2212	2024-03-14_9a146f05c3a0255a449e686e955c89d3_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	2024-03-14_9a146f05c3a0255a449e686e955c89d3_cryptolocker.exe
3004	rewok.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2212 wrote to memory of 3004	2212	2024-03-14_9a146f05c3a0255a449e686e955c89d3_cryptolocker.exe	28
PID 2212 wrote to memory of 3004	2212	2024-03-14_9a146f05c3a0255a449e686e955c89d3_cryptolocker.exe	28
PID 2212 wrote to memory of 3004	2212	2024-03-14_9a146f05c3a0255a449e686e955c89d3_cryptolocker.exe	28
PID 2212 wrote to memory of 3004	2212	2024-03-14_9a146f05c3a0255a449e686e955c89d3_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-14_9a146f05c3a0255a449e686e955c89d3_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-14_9a146f05c3a0255a449e686e955c89d3_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2212
- C:\Users\Admin\AppData\Local\Temp\rewok.exe
  "C:\Users\Admin\AppData\Local\Temp\rewok.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of UnmapMainImage
  PID:3004

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\rewok.exe

Filesize
42KB

MD5
89756082b943317190625e7b338f6b14

SHA1
641547dc0967f0b46dd26c911ba4987dad7e0223

SHA256
387d781c7f3c02da5767051707c035e7da86c3dd9866bc4705dce9e407f963a6

SHA512
95f90187351fe0bcbcdf5e67e2d0c80c2c9c1c9d72bf264980e924f2d9d37ab754294641156461caa5573a6d924f230ad62e0d0da71edd16d4122facc594b134

Download Submit
memory/2212-0-0x00000000003F0000-0x00000000003F6000-memory.dmp

Filesize
24KB

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

Filesize
24KB

Download
memory/2212-8-0x00000000003F0000-0x00000000003F6000-memory.dmp

Filesize
24KB

Download
memory/3004-20-0x00000000003E0000-0x00000000003E6000-memory.dmp

Filesize
24KB

Download