c2a17fb36087481e06b25697df3293a7bfe563274f6254071784a77600a77083

Analysis

max time kernel
119s
max time network
120s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
24/02/2024, 04:51

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General

Target

2024-02-24_7769ec5c9509620fbfa7b7ff9122bb06_cryptolocker.exe
Size

61KB
MD5

7769ec5c9509620fbfa7b7ff9122bb06
SHA1

7f210a41ef2af42a1e3877ef1fb5602a6bd3d9c5
SHA256

c2a17fb36087481e06b25697df3293a7bfe563274f6254071784a77600a77083
SHA512

d6bd4c3b2833763b7924e1e47fb34d4e5b86e142313188c23523507823f3f1aaea56e7145739b3981310adebf45240456737ee3ea5747e11faaaa2b2069f433a
SSDEEP

1536:btB9g/xtCSKfxLIc//Xr+/AO/kIZ3ft2nVuTKB6nggOlHdUHNa:btng54SMLr+/AO/kIhfoKMHd1

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b000000012256-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2620	gewos.exe

Loads dropped DLL 1 IoCs

pid	Process
2756	2024-02-24_7769ec5c9509620fbfa7b7ff9122bb06_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
2756	2024-02-24_7769ec5c9509620fbfa7b7ff9122bb06_cryptolocker.exe
2620	gewos.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2756 wrote to memory of 2620	2756	2024-02-24_7769ec5c9509620fbfa7b7ff9122bb06_cryptolocker.exe	28
PID 2756 wrote to memory of 2620	2756	2024-02-24_7769ec5c9509620fbfa7b7ff9122bb06_cryptolocker.exe	28
PID 2756 wrote to memory of 2620	2756	2024-02-24_7769ec5c9509620fbfa7b7ff9122bb06_cryptolocker.exe	28
PID 2756 wrote to memory of 2620	2756	2024-02-24_7769ec5c9509620fbfa7b7ff9122bb06_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-24_7769ec5c9509620fbfa7b7ff9122bb06_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-24_7769ec5c9509620fbfa7b7ff9122bb06_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2756
- 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:2620

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
32578b90f0c00fc04127b37e95c58382

SHA1
74b88b012cd266c42d69b5d9ce5a6eedb335b1ed

SHA256
702377bc0bb28d5430af59493225850b295584051ec16fc3be5845ef1ce35ed5

SHA512
fe424c6d63eb2aa07e699a41352ffa7ef8b0ad9d73dae0da8ad0c50db6b5cbba4cf6f791e58313247e4f9e5d93a86e9aa8b2575b18989374401229e3d4fe8a0d

Download Submit
memory/2620-18-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/2756-0-0x00000000005C0000-0x00000000005C6000-memory.dmp

Filesize
24KB

Download
memory/2756-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2756-2-0x00000000005C0000-0x00000000005C6000-memory.dmp

Filesize
24KB

Download