249e5cd063dc6eafa2ee2f88303c315adabb5bd371b4b498abaf417d48ba396d

Analysis

max time kernel
148s
max time network
149s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
18/03/2024, 10:37

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General

Target

2024-03-18_650a0ab4fda4e84cf13826e09620dc78_cryptolocker.exe
Size

34KB
MD5

650a0ab4fda4e84cf13826e09620dc78
SHA1

6b280eb46bb367aac7f9859ee82c702d255fc632
SHA256

249e5cd063dc6eafa2ee2f88303c315adabb5bd371b4b498abaf417d48ba396d
SHA512

bee1d537c61046f8e52d40a590d4c845789e4addb1e1f14963083ba111b33ef87cab1132c96cdc5d8c2688139c5692db1aef5e7e4947c1651fd360056909b42c
SSDEEP

384:bmM0V/YPvnr801TRoUGPh4TKt6ATt1DqgPa3s/zzoCt9/B1RU3q4a+33LilG:b7o/2n1TCraU6GD1a4Xt9bRU64tbilG

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

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

Executes dropped EXE 1 IoCs

pid	Process
2772	rewok.exe

Loads dropped DLL 1 IoCs

pid	Process
1712	2024-03-18_650a0ab4fda4e84cf13826e09620dc78_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
1712	2024-03-18_650a0ab4fda4e84cf13826e09620dc78_cryptolocker.exe
2772	rewok.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1712 wrote to memory of 2772	1712	2024-03-18_650a0ab4fda4e84cf13826e09620dc78_cryptolocker.exe	28
PID 1712 wrote to memory of 2772	1712	2024-03-18_650a0ab4fda4e84cf13826e09620dc78_cryptolocker.exe	28
PID 1712 wrote to memory of 2772	1712	2024-03-18_650a0ab4fda4e84cf13826e09620dc78_cryptolocker.exe	28
PID 1712 wrote to memory of 2772	1712	2024-03-18_650a0ab4fda4e84cf13826e09620dc78_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-18_650a0ab4fda4e84cf13826e09620dc78_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-18_650a0ab4fda4e84cf13826e09620dc78_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:1712
- 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:2772

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
34KB

MD5
f111bd862d059c81bdb201497e164b7b

SHA1
1374f92d7b1b9f98a62ba6e3800ced5bba4f5522

SHA256
4098edaba5967d8451f62694313b13fe40c35d0cd9ea6522149adb838964aa5b

SHA512
74b6cf3f884ba4c5971700d302af144bca40fb5793bb8f64f25e6c4c0411301f962e97005293de6f5f5540d8e4f72fc41d17e764606c9546f705ece32ffac926

Download Submit
memory/1712-0-0x0000000000390000-0x0000000000396000-memory.dmp

Filesize
24KB

Download
memory/1712-2-0x0000000000390000-0x0000000000396000-memory.dmp

Filesize
24KB

Download
memory/1712-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2772-22-0x0000000000210000-0x0000000000216000-memory.dmp

Filesize
24KB

Download