e363cb28a7a8fe2ec281ec49452ff4321bee032d2681290144863faf26f3084d

Analysis

max time kernel
118s
max time network
122s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
21/05/2024, 18:46

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General

Target

2024-05-21_b4530c25fa4400b29342be445f01968b_cryptolocker.exe
Size

37KB
MD5

b4530c25fa4400b29342be445f01968b
SHA1

290502c88b71805d4264bc6b39284281ea6f59c5
SHA256

e363cb28a7a8fe2ec281ec49452ff4321bee032d2681290144863faf26f3084d
SHA512

3278128d632f75f81a767cb3b295c3321c596829fa6d984b4489ad6ee6328047cc5f0a1d88e77b57b0d768d8642bccb3c88095c6688b3a29aa9449b4520f1e83
SSDEEP

384:btBYQg/WIEhUCSNyepEjYnDOAlzVol6U/zzo+tkq4XDIwNiJXxXunRSyE:btB9g/WItCSsAGjX7e9N0hunRvE

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b000000014b6d-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2916	gewos.exe

Loads dropped DLL 1 IoCs

pid	Process
1288	2024-05-21_b4530c25fa4400b29342be445f01968b_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
1288	2024-05-21_b4530c25fa4400b29342be445f01968b_cryptolocker.exe
2916	gewos.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1288 wrote to memory of 2916	1288	2024-05-21_b4530c25fa4400b29342be445f01968b_cryptolocker.exe	28
PID 1288 wrote to memory of 2916	1288	2024-05-21_b4530c25fa4400b29342be445f01968b_cryptolocker.exe	28
PID 1288 wrote to memory of 2916	1288	2024-05-21_b4530c25fa4400b29342be445f01968b_cryptolocker.exe	28
PID 1288 wrote to memory of 2916	1288	2024-05-21_b4530c25fa4400b29342be445f01968b_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-21_b4530c25fa4400b29342be445f01968b_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-21_b4530c25fa4400b29342be445f01968b_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:1288
- 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:2916

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
37KB

MD5
3bbd4028b70ef5e98686460a18b442d0

SHA1
73c01bcf52df2e44f9f6390687693c6ea27a48c6

SHA256
1eb16c9b38c4f2ad03e39514ad4211df579199d432bb771567b73f10f95dc1e8

SHA512
71ffb0fd517d54dfe516ee9c1fadb54bc23f917db9dc54163b06e60ae0b8228352403a3e74c823d5c6493ba000400cd686c06435a50087554889db9d3aa9439a

Download Submit
memory/1288-0-0x0000000000270000-0x0000000000276000-memory.dmp

Filesize
24KB

Download
memory/1288-2-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/1288-1-0x0000000000270000-0x0000000000276000-memory.dmp

Filesize
24KB

Download
memory/2916-23-0x0000000000260000-0x0000000000266000-memory.dmp

Filesize
24KB

Download