75ea81b856501c538e8b8704a652b3daef187a2c4b34a61df7c30cec10fe0145

Analysis

max time kernel
118s
max time network
118s
platform
windows7_x64
resource
win7-20240508-en
resource tags

arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
submitted
10/06/2024, 11:21

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General

Target

2024-06-10_8df36fcf80bbeda1db37a685dfec899b_cryptolocker.exe
Size

63KB
MD5

8df36fcf80bbeda1db37a685dfec899b
SHA1

29c6a251687a7a21faeb5f52fa0920029b3295bc
SHA256

75ea81b856501c538e8b8704a652b3daef187a2c4b34a61df7c30cec10fe0145
SHA512

496f8506747e6dc0a0800af07b6f3fede16f9be55ae4b652e9c949d8c300dc7c7e3bcd5f01262e375c0835e4b339ac7ba7e5e7c37b8f59fdae303ccf92516134
SSDEEP

1536:btB9g/xtCSKfxLIc//Xr+/AO/kIZ3ft2nVuTKB6nggOlHdUHZnxb:btng54SMLr+/AO/kIhfoKMHdaN

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000a0000000122ec-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2888	gewos.exe

Loads dropped DLL 1 IoCs

pid	Process
3056	2024-06-10_8df36fcf80bbeda1db37a685dfec899b_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
3056	2024-06-10_8df36fcf80bbeda1db37a685dfec899b_cryptolocker.exe
2888	gewos.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 3056 wrote to memory of 2888	3056	2024-06-10_8df36fcf80bbeda1db37a685dfec899b_cryptolocker.exe	28
PID 3056 wrote to memory of 2888	3056	2024-06-10_8df36fcf80bbeda1db37a685dfec899b_cryptolocker.exe	28
PID 3056 wrote to memory of 2888	3056	2024-06-10_8df36fcf80bbeda1db37a685dfec899b_cryptolocker.exe	28
PID 3056 wrote to memory of 2888	3056	2024-06-10_8df36fcf80bbeda1db37a685dfec899b_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-06-10_8df36fcf80bbeda1db37a685dfec899b_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-10_8df36fcf80bbeda1db37a685dfec899b_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:3056
- 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:2888

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
63KB

MD5
12e624d5846118c8e6de32183e0e6069

SHA1
c28332dd4598f33ad82dd277bd42561e0bf86603

SHA256
5d581feb9ab9c06ecfe62d5821af5c7721c6dd29e0e5b4ceb0519933b13e4381

SHA512
d58c0082cce85240acde4d751758e012b653a89978f50dc51b8fd786a5aca5665903a14346a06ac272328e1370f27fbd9ac493a2d6c6d9ec58bd83075d425d9f

Download Submit
memory/2888-23-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/3056-0-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/3056-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/3056-8-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download