be2872650d00e8c99b445615cfc75785c3a1a757d78f139ef28c02b8cf8eab97

Analysis

max time kernel
122s
max time network
127s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
23/02/2024, 16:56

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General

Target

2024-02-23_fe5a92fb8ae0ea370591c0486e520088_cryptolocker.exe
Size

60KB
MD5

fe5a92fb8ae0ea370591c0486e520088
SHA1

70709de510a007c67a879a76d0ee8ae81a976b56
SHA256

be2872650d00e8c99b445615cfc75785c3a1a757d78f139ef28c02b8cf8eab97
SHA512

7c1439ba8097656bba97c6620aa31b5c35cff2f12586801142a569bc5bd17c58b93881a8c6a562541e96a645826842a36c390ee37bbe842f7abd3abd196d84cf
SSDEEP

1536:btB9g/xtCSKfxLIc//Xr+/AO/kIZ3ft2nVuTKB6nggOlHdUHNWZ:btng54SMLr+/AO/kIhfoKMHdf

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b000000012241-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2056	gewos.exe

Loads dropped DLL 1 IoCs

pid	Process
2020	2024-02-23_fe5a92fb8ae0ea370591c0486e520088_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
2020	2024-02-23_fe5a92fb8ae0ea370591c0486e520088_cryptolocker.exe
2056	gewos.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2020 wrote to memory of 2056	2020	2024-02-23_fe5a92fb8ae0ea370591c0486e520088_cryptolocker.exe	28
PID 2020 wrote to memory of 2056	2020	2024-02-23_fe5a92fb8ae0ea370591c0486e520088_cryptolocker.exe	28
PID 2020 wrote to memory of 2056	2020	2024-02-23_fe5a92fb8ae0ea370591c0486e520088_cryptolocker.exe	28
PID 2020 wrote to memory of 2056	2020	2024-02-23_fe5a92fb8ae0ea370591c0486e520088_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-23_fe5a92fb8ae0ea370591c0486e520088_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-23_fe5a92fb8ae0ea370591c0486e520088_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2020
- 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:2056

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
61KB

MD5
6cf0ff338c3e8525b8d278508505f327

SHA1
aedd45ffe16efa7532fc5087030de788e00c96a8

SHA256
f8c62c465e9f18ef8bcd4ce16d817ed22055646a8b4f2688880a229c0b982e79

SHA512
ed68c3d43d91399fb49e287acd5baad69456b7befc44afd3553b219c932060d6e589a844c5a3c61fb6c4ffe9c005666b95e7a787609e15a68c8622d09f9f13c5

Download Submit
memory/2020-0-0x0000000000270000-0x0000000000276000-memory.dmp

Filesize
24KB

Download
memory/2020-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2020-4-0x0000000000270000-0x0000000000276000-memory.dmp

Filesize
24KB

Download
memory/2056-18-0x0000000000340000-0x0000000000346000-memory.dmp

Filesize
24KB

Download