7b7f4e36c64905a2b9bbda14020cd2419c0c5fcd4ed3ab824e4b8a2271945ee9

Analysis

max time kernel
120s
max time network
121s
platform
windows7_x64
resource
win7-20240220-en
resource tags

arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
submitted
01-05-2024 04:46

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General

Target

2024-05-01_d832d3808180a2094f2dc19a4ed0f732_cryptolocker.exe
Size

64KB
MD5

d832d3808180a2094f2dc19a4ed0f732
SHA1

1ea9135b8f9f17c0dad22396c56da25f17e557a1
SHA256

7b7f4e36c64905a2b9bbda14020cd2419c0c5fcd4ed3ab824e4b8a2271945ee9
SHA512

83867819a63cded055c891280e24c9bb0cf37f76459a6ae49057c3672d5ea6eb3ca5cfc49ed0d425ce38e7d2d079055eb943b9b47718f852e206c3d975168c2b
SSDEEP

1536:btB9g/xtCSKfxLIc//Xr+/AO/kIZ3ft2nVuTKB6nggOlHdUHaxp:btng54SMLr+/AO/kIhfoKMHdPp

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000c000000012707-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2256	gewos.exe

Loads dropped DLL 1 IoCs

pid	Process
2872	2024-05-01_d832d3808180a2094f2dc19a4ed0f732_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
2872	2024-05-01_d832d3808180a2094f2dc19a4ed0f732_cryptolocker.exe
2256	gewos.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2872 wrote to memory of 2256	2872	2024-05-01_d832d3808180a2094f2dc19a4ed0f732_cryptolocker.exe	28
PID 2872 wrote to memory of 2256	2872	2024-05-01_d832d3808180a2094f2dc19a4ed0f732_cryptolocker.exe	28
PID 2872 wrote to memory of 2256	2872	2024-05-01_d832d3808180a2094f2dc19a4ed0f732_cryptolocker.exe	28
PID 2872 wrote to memory of 2256	2872	2024-05-01_d832d3808180a2094f2dc19a4ed0f732_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-01_d832d3808180a2094f2dc19a4ed0f732_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-01_d832d3808180a2094f2dc19a4ed0f732_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2872
- 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:2256

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\gewos.exe

Filesize
64KB

MD5
24b44cee2a59a5a44dfb8a001e5cd19a

SHA1
4e46bbc9fd14b957467f47a4e44f4fbe6653fe27

SHA256
2afab3ad47dfa191d496fef32304e09b19fa948cb666878e9dc3662ad0d0bf16

SHA512
79fd878629037b00bc341c4db63fc2fd6bf77f302915397f1abaed611d7ee6c9d51a3625326c0e54552d212b9e2b3da793b63f547976fb2d6764e73af2f74896

Download Submit
memory/2256-23-0x00000000003E0000-0x00000000003E6000-memory.dmp

Filesize
24KB

Download
memory/2872-0-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/2872-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2872-8-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download