266610c5ed5730f8edfb956abc8138aa689ac7bc2e511787557d148c77a76c35

Analysis

max time kernel
148s
max time network
149s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
19/02/2024, 10:37

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General

Target

2024-02-19_d4a2986e5e235e53e508854e36fea4a3_cryptolocker.exe
Size

31KB
MD5

d4a2986e5e235e53e508854e36fea4a3
SHA1

db966ad389375a1e7e30b8776fe0450e8850d33a
SHA256

266610c5ed5730f8edfb956abc8138aa689ac7bc2e511787557d148c77a76c35
SHA512

47d790505feb043f7c170deef42047fff83fa35f70a3150387fecf80b246771ed77a7f8cdee89a7cb868480835c787deeb424b2c5b6810cb8cc9086d8bdd4704
SSDEEP

384:bmM0V/YPvnr801TRoUGPh4TKt6ATt1DqgPa3s/zzoCt9R0aOX:b7o/2n1TCraU6GD1a4Xt9R0aOX

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000c00000001224c-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2940	rewok.exe

Loads dropped DLL 1 IoCs

pid	Process
2180	2024-02-19_d4a2986e5e235e53e508854e36fea4a3_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
2180	2024-02-19_d4a2986e5e235e53e508854e36fea4a3_cryptolocker.exe
2940	rewok.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2180 wrote to memory of 2940	2180	2024-02-19_d4a2986e5e235e53e508854e36fea4a3_cryptolocker.exe	28
PID 2180 wrote to memory of 2940	2180	2024-02-19_d4a2986e5e235e53e508854e36fea4a3_cryptolocker.exe	28
PID 2180 wrote to memory of 2940	2180	2024-02-19_d4a2986e5e235e53e508854e36fea4a3_cryptolocker.exe	28
PID 2180 wrote to memory of 2940	2180	2024-02-19_d4a2986e5e235e53e508854e36fea4a3_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-19_d4a2986e5e235e53e508854e36fea4a3_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-19_d4a2986e5e235e53e508854e36fea4a3_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2180
- 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:2940

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
31KB

MD5
bbe35e96666a8945840481a65cd7a03d

SHA1
be9367fd255f050dd00a229ac91c9a58e85cc5fe

SHA256
547c153fc900d5a050805ef5ce24dd5944514eb4366383d94869945b6844052b

SHA512
b79b73be32ae71e5b999a2847cbdca1e8ad2ca8a0f923d00679e6c5ae17d6590c07251332bfa03c0c7909d1cb06e9729516e283c69230933f249b9ff31d43bc2

Download Submit
memory/2180-0-0x0000000000380000-0x0000000000386000-memory.dmp

Filesize
24KB

Download
memory/2180-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2180-1-0x0000000000380000-0x0000000000386000-memory.dmp

Filesize
24KB

Download
memory/2940-17-0x00000000003F0000-0x00000000003F6000-memory.dmp

Filesize
24KB

Download