b365f068c232e48ec7fc4546689668c860052d8e8ff1f4e8e71bb4fc07c7a4b4

Analysis

max time kernel
120s
max time network
125s
platform
windows7_x64
resource
win7-20230831-en
resource tags

arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system
submitted
03-09-2023 14:03

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General

Target

2023-08-22_ececf3cf18d5e5d755687a199c0f68a6_cryptolocker_JC.exe
Size

30KB
MD5

ececf3cf18d5e5d755687a199c0f68a6
SHA1

3861375b87d668cad78e4a2c0b5aa69cc8d1456a
SHA256

b365f068c232e48ec7fc4546689668c860052d8e8ff1f4e8e71bb4fc07c7a4b4
SHA512

c2cedad02c0d3ebe64bb939df3327fffe182a6693bdb11e010ddfc1c90ae7a8e418c3ff63199dda96e8a3cb4e7b490bc5d83760acab7dd3dac1bba31afcee835
SSDEEP

384:btBYQg/WIEhUCSNyepEjYnDOAlzVol6U/zzo+tkq4XDIwNd:btB9g/WItCSsAGjX7e9Nd

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2552	gewos.exe

Loads dropped DLL 1 IoCs

pid	Process
1404	2023-08-22_ececf3cf18d5e5d755687a199c0f68a6_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
1404	2023-08-22_ececf3cf18d5e5d755687a199c0f68a6_cryptolocker_JC.exe
2552	gewos.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1404 wrote to memory of 2552	1404	2023-08-22_ececf3cf18d5e5d755687a199c0f68a6_cryptolocker_JC.exe	28
PID 1404 wrote to memory of 2552	1404	2023-08-22_ececf3cf18d5e5d755687a199c0f68a6_cryptolocker_JC.exe	28
PID 1404 wrote to memory of 2552	1404	2023-08-22_ececf3cf18d5e5d755687a199c0f68a6_cryptolocker_JC.exe	28
PID 1404 wrote to memory of 2552	1404	2023-08-22_ececf3cf18d5e5d755687a199c0f68a6_cryptolocker_JC.exe	28

C:\Users\Admin\AppData\Local\Temp\2023-08-22_ececf3cf18d5e5d755687a199c0f68a6_cryptolocker_JC.exe
"C:\Users\Admin\AppData\Local\Temp\2023-08-22_ececf3cf18d5e5d755687a199c0f68a6_cryptolocker_JC.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:1404
- 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:2552

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
31KB

MD5
961bbab02baa59a0b44cf50045a1d2e1

SHA1
54e7645352cb4f7990f413ec16ec78b06bfc45ce

SHA256
0cf5220b5da0587f5997987bd0e9d0e89c107f18990929d12f44d5cf1587ba3d

SHA512
4383c2fe88a4108a39ede50913cf8873aac4b61462fb512bb1ddc02f02ec96ed28d665a605e5aa871b8f3bfb8365b14e10a03bc9751c8775e6d6407e429d44e8

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

Filesize
31KB

MD5
961bbab02baa59a0b44cf50045a1d2e1

SHA1
54e7645352cb4f7990f413ec16ec78b06bfc45ce

SHA256
0cf5220b5da0587f5997987bd0e9d0e89c107f18990929d12f44d5cf1587ba3d

SHA512
4383c2fe88a4108a39ede50913cf8873aac4b61462fb512bb1ddc02f02ec96ed28d665a605e5aa871b8f3bfb8365b14e10a03bc9751c8775e6d6407e429d44e8

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

Filesize
31KB

MD5
961bbab02baa59a0b44cf50045a1d2e1

SHA1
54e7645352cb4f7990f413ec16ec78b06bfc45ce

SHA256
0cf5220b5da0587f5997987bd0e9d0e89c107f18990929d12f44d5cf1587ba3d

SHA512
4383c2fe88a4108a39ede50913cf8873aac4b61462fb512bb1ddc02f02ec96ed28d665a605e5aa871b8f3bfb8365b14e10a03bc9751c8775e6d6407e429d44e8

Download Submit
memory/1404-0-0x0000000000270000-0x0000000000276000-memory.dmp

Filesize
24KB

Download
memory/1404-1-0x0000000000270000-0x0000000000276000-memory.dmp

Filesize
24KB

Download
memory/1404-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2552-17-0x00000000001F0000-0x00000000001F6000-memory.dmp

Filesize
24KB

Download