f45a9732c376242622aec1710eec45a5c27e05f99853ab1e7d9792b3a54caf97

Analysis

max time kernel
120s
max time network
126s
platform
windows7_x64
resource
win7-20230712-en
resource tags

arch:x64arch:x86image:win7-20230712-enlocale:en-usos:windows7-x64system
submitted
17/08/2023, 18:21

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General

Target

1ef952ebaba54b482873dad2b9df1313_cryptolocker_JC.exe
Size

35KB
MD5

1ef952ebaba54b482873dad2b9df1313
SHA1

e381e764b2aab2cc4e22a27bd4e215e6770a487b
SHA256

f45a9732c376242622aec1710eec45a5c27e05f99853ab1e7d9792b3a54caf97
SHA512

163661b92b22ac61bd10dc626f02ea376d4c0de7b37a939e52f59369f96ff29cbe3284d328411005f1c26369dccb78d9ca2d91b22a86fff641b2601078323257
SSDEEP

384:btBYQg/WIEhUCSNyepEjYnDOAlzVol6U/zzo+tkq4l8tFFxE2BodcAOjbQ36ttT+:btB9g/WItCSsAGjX7r3BGub4

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1632	gewos.exe

Loads dropped DLL 1 IoCs

pid	Process
1732	1ef952ebaba54b482873dad2b9df1313_cryptolocker_JC.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
1732	1ef952ebaba54b482873dad2b9df1313_cryptolocker_JC.exe
1632	gewos.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1732 wrote to memory of 1632	1732	1ef952ebaba54b482873dad2b9df1313_cryptolocker_JC.exe	28
PID 1732 wrote to memory of 1632	1732	1ef952ebaba54b482873dad2b9df1313_cryptolocker_JC.exe	28
PID 1732 wrote to memory of 1632	1732	1ef952ebaba54b482873dad2b9df1313_cryptolocker_JC.exe	28
PID 1732 wrote to memory of 1632	1732	1ef952ebaba54b482873dad2b9df1313_cryptolocker_JC.exe	28

C:\Users\Admin\AppData\Local\Temp\1ef952ebaba54b482873dad2b9df1313_cryptolocker_JC.exe
"C:\Users\Admin\AppData\Local\Temp\1ef952ebaba54b482873dad2b9df1313_cryptolocker_JC.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:1732
- C:\Users\Admin\AppData\Local\Temp\gewos.exe
  "C:\Users\Admin\AppData\Local\Temp\gewos.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of UnmapMainImage
  PID:1632

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

C:\Users\Admin\AppData\Local\Temp\gewos.exe

Filesize
35KB

MD5
9d85425046a88899a4d79a6273f6fb29

SHA1
6e92d577a6d732bfe8dd74075c0fef5057abf7e3

SHA256
da642e8f3804258bdd4406712f30f6b99f967dab0e8068af86dfa2a019847fd1

SHA512
6a1cde00450cb40c61e5e2af9d6dbf9e227e852a2a364d2501aaf4be2b43c84d806ece05256d4421dea2e2cfe3b2523a96e6e5f8c59ad6f6f4d22e2bdec16420

Download Submit
C:\Users\Admin\AppData\Local\Temp\gewos.exe

Filesize
35KB

MD5
9d85425046a88899a4d79a6273f6fb29

SHA1
6e92d577a6d732bfe8dd74075c0fef5057abf7e3

SHA256
da642e8f3804258bdd4406712f30f6b99f967dab0e8068af86dfa2a019847fd1

SHA512
6a1cde00450cb40c61e5e2af9d6dbf9e227e852a2a364d2501aaf4be2b43c84d806ece05256d4421dea2e2cfe3b2523a96e6e5f8c59ad6f6f4d22e2bdec16420

Download Submit
\Users\Admin\AppData\Local\Temp\gewos.exe

Filesize
35KB

MD5
9d85425046a88899a4d79a6273f6fb29

SHA1
6e92d577a6d732bfe8dd74075c0fef5057abf7e3

SHA256
da642e8f3804258bdd4406712f30f6b99f967dab0e8068af86dfa2a019847fd1

SHA512
6a1cde00450cb40c61e5e2af9d6dbf9e227e852a2a364d2501aaf4be2b43c84d806ece05256d4421dea2e2cfe3b2523a96e6e5f8c59ad6f6f4d22e2bdec16420

Download Submit
memory/1632-70-0x0000000000260000-0x0000000000266000-memory.dmp

Filesize
24KB

Download
memory/1732-54-0x00000000003D0000-0x00000000003D6000-memory.dmp

Filesize
24KB

Download
memory/1732-56-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/1732-55-0x00000000003D0000-0x00000000003D6000-memory.dmp

Filesize
24KB

Download