363ed884188c1bc6f7f9a9288f211d740ae17b8ee21d9f3d7f301b2058728523

Analysis

max time kernel
122s
max time network
123s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
28-02-2024 06:42

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General

Target

2024-02-28_bd48a180aab6d9c71b0637a3918d8f83_cryptolocker.exe
Size

58KB
MD5

bd48a180aab6d9c71b0637a3918d8f83
SHA1

bb33e05be5c612afaba60ba7da46eeb65ff06208
SHA256

363ed884188c1bc6f7f9a9288f211d740ae17b8ee21d9f3d7f301b2058728523
SHA512

ec15952780b7f6996c5f7877776f0133af7c21962ad9442aa19b8ea43a5c554cb415d484512936735177e2898f814cf728ca10bd4a0124c87cf88d1db7d1ec57
SSDEEP

1536:btB9g/xtCSKfxLIc//Xr+/AO/kIZ3ft2nVuTKB6nggOlHdUHRT:btng54SMLr+/AO/kIhfoKMHdST

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000a000000012255-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
300	gewos.exe

Loads dropped DLL 1 IoCs

pid	Process
1936	2024-02-28_bd48a180aab6d9c71b0637a3918d8f83_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
1936	2024-02-28_bd48a180aab6d9c71b0637a3918d8f83_cryptolocker.exe
300	gewos.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1936 wrote to memory of 300	1936	2024-02-28_bd48a180aab6d9c71b0637a3918d8f83_cryptolocker.exe	28
PID 1936 wrote to memory of 300	1936	2024-02-28_bd48a180aab6d9c71b0637a3918d8f83_cryptolocker.exe	28
PID 1936 wrote to memory of 300	1936	2024-02-28_bd48a180aab6d9c71b0637a3918d8f83_cryptolocker.exe	28
PID 1936 wrote to memory of 300	1936	2024-02-28_bd48a180aab6d9c71b0637a3918d8f83_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-28_bd48a180aab6d9c71b0637a3918d8f83_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-28_bd48a180aab6d9c71b0637a3918d8f83_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:1936
- 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:300

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
58KB

MD5
17c23e2e819a70000849c9d17166851e

SHA1
fc5c157f125e9b7b886e6a953c4ec6fb46a1418a

SHA256
d64e2fb26008609307960d8da7421b8a73169b12f718e3fb27236f93887167db

SHA512
6320ebcf2c3f54422b1228d935d132997c5d5c2a3fe83609daccf9a1a8d3a0e7531c9b2ca85c91701c95dd00c5cb90fe55d2362d42561030824e9a8496820b44

Download Submit
memory/300-19-0x00000000003E0000-0x00000000003E6000-memory.dmp

Filesize
24KB

Download
memory/1936-0-0x00000000004B0000-0x00000000004B6000-memory.dmp

Filesize
24KB

Download
memory/1936-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/1936-8-0x00000000004B0000-0x00000000004B6000-memory.dmp

Filesize
24KB

Download