9e80458fb07a6188db29019dbf2de00e8aed4f8db50916d5a5c027448a1d5f1b

Analysis

max time kernel
118s
max time network
124s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
26/05/2024, 02:47

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General

Target

2024-05-26_f13461eca4f8ab8d57209349123049f1_cryptolocker.exe
Size

41KB
MD5

f13461eca4f8ab8d57209349123049f1
SHA1

d1d9c873e904bde081f73f41fa76ff6a2afdf6b0
SHA256

9e80458fb07a6188db29019dbf2de00e8aed4f8db50916d5a5c027448a1d5f1b
SHA512

ab750ab4e1c1bf8a703500b36ff0a49390636fa86ec68364a7c22ddd5154f348ae7635f856acaabd684d6efe7633bb30871cd9b910e1c806e2ae9e298b75ed02
SSDEEP

384:btBYQg/WIEhUCSNyepEjYnDOAlzVol6U/zzo+tkq4XDIwNiJXxXunKzH15U/EZCz:btB9g/WItCSsAGjX7e9N0hunKLYW+

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x0009000000016332-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2900	gewos.exe

Loads dropped DLL 1 IoCs

pid	Process
2504	2024-05-26_f13461eca4f8ab8d57209349123049f1_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
2504	2024-05-26_f13461eca4f8ab8d57209349123049f1_cryptolocker.exe
2900	gewos.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2504 wrote to memory of 2900	2504	2024-05-26_f13461eca4f8ab8d57209349123049f1_cryptolocker.exe	28
PID 2504 wrote to memory of 2900	2504	2024-05-26_f13461eca4f8ab8d57209349123049f1_cryptolocker.exe	28
PID 2504 wrote to memory of 2900	2504	2024-05-26_f13461eca4f8ab8d57209349123049f1_cryptolocker.exe	28
PID 2504 wrote to memory of 2900	2504	2024-05-26_f13461eca4f8ab8d57209349123049f1_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-26_f13461eca4f8ab8d57209349123049f1_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-26_f13461eca4f8ab8d57209349123049f1_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2504
- 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:2900

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
41KB

MD5
7161631132d7fe20a674abf6730f2091

SHA1
b04e02f250ad3757de529174e8d640c241a3839b

SHA256
88126198d0fe0981753be47d88ed8af3b4d0b168a7d5ebca5ae2ed3b7be112e7

SHA512
3d0f8327e152f4b90049fb1998beaa1151e53fde950d79db3c160cf562598017a4dce2d145e0e9a8ede75ef0948334318b1636572e82e3b8be640295c24ddeb4

Download Submit
memory/2504-0-0x0000000000350000-0x0000000000356000-memory.dmp

Filesize
24KB

Download
memory/2504-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2504-8-0x0000000000350000-0x0000000000356000-memory.dmp

Filesize
24KB

Download
memory/2900-23-0x00000000003E0000-0x00000000003E6000-memory.dmp

Filesize
24KB

Download